jdk | JDK mainline development | Blockchain library

android {
    ndkVersion "24.0.8215888"
    ...
}

echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install 'ndk;24.0.8215888'

echo "y" | sudo ${ANDROID_HOME}/sdk/cmdline-tools/latest/bin/sdkmanager --install 'ndk;24.0.8215888'

find ~ -name ndk-build 2>/dev/null

vi ~/Library/Android/sdk/ndk/22.1.7171670/ndk-build

DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

android {
    ndkVersion "24.0.8215888"
    ...
}

echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install 'ndk;24.0.8215888'

echo "y" | sudo ${ANDROID_HOME}/sdk/cmdline-tools/latest/bin/sdkmanager --install 'ndk;24.0.8215888'

find ~ -name ndk-build 2>/dev/null

vi ~/Library/Android/sdk/ndk/22.1.7171670/ndk-build

DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

android {
    ndkVersion "24.0.8215888"
    ...
}

echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install 'ndk;24.0.8215888'

echo "y" | sudo ${ANDROID_HOME}/sdk/cmdline-tools/latest/bin/sdkmanager --install 'ndk;24.0.8215888'

find ~ -name ndk-build 2>/dev/null

vi ~/Library/Android/sdk/ndk/22.1.7171670/ndk-build

DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

android {
    ndkVersion "24.0.8215888"
    ...
}

echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install 'ndk;24.0.8215888'

echo "y" | sudo ${ANDROID_HOME}/sdk/cmdline-tools/latest/bin/sdkmanager --install 'ndk;24.0.8215888'

find ~ -name ndk-build 2>/dev/null

vi ~/Library/Android/sdk/ndk/22.1.7171670/ndk-build

DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

android {
    ndkVersion "24.0.8215888"
    ...
}

echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install 'ndk;24.0.8215888'

echo "y" | sudo ${ANDROID_HOME}/sdk/cmdline-tools/latest/bin/sdkmanager --install 'ndk;24.0.8215888'

find ~ -name ndk-build 2>/dev/null

vi ~/Library/Android/sdk/ndk/22.1.7171670/ndk-build

DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

android {
    ndkVersion "24.0.8215888"
    ...
}

echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install 'ndk;24.0.8215888'

echo "y" | sudo ${ANDROID_HOME}/sdk/cmdline-tools/latest/bin/sdkmanager --install 'ndk;24.0.8215888'

find ~ -name ndk-build 2>/dev/null

vi ~/Library/Android/sdk/ndk/22.1.7171670/ndk-build

DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

android {
    ndkVersion "24.0.8215888"
    ...
}

echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install 'ndk;24.0.8215888'

echo "y" | sudo ${ANDROID_HOME}/sdk/cmdline-tools/latest/bin/sdkmanager --install 'ndk;24.0.8215888'

find ~ -name ndk-build 2>/dev/null

vi ~/Library/Android/sdk/ndk/22.1.7171670/ndk-build

DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

#!/bin/sh
DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

#!/bin/sh
DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

#!/bin/sh
DIR="$(cd "$(dirname "$0")" && pwd)"
$DIR/build/ndk-build "$@"

#!/bin/sh
DIR="$(cd "$(dirname "$0")" && pwd)"
arch -x86_64 /bin/bash $DIR/build/ndk-build "$@"

Android Studio 2021.1.1
Android Gradle Plugin 7.1.0 (the plugin includes an aapt2 binary)
Android SDK Build-Tools 32.1-rc1 (SDK's stable channel)
Android SDK Platform Tools 32.0.0 (SDK's stable channel)
Android NDK 24.0.7956693 (beta 2, from the SDK's beta channel)
CMake 3.22.1 (SDK's canary channel)

android {
    ndkVersion "24.0.7956693-beta2"
    externalNativeBuild {
        cmake {
            path file('src/main/cpp/CMakeLists.txt')
            version '3.22.1'
        }
    }
}

Android Studio 2021.1.1
Android Gradle Plugin 7.1.0 (the plugin includes an aapt2 binary)
Android SDK Build-Tools 32.1-rc1 (SDK's stable channel)
Android SDK Platform Tools 32.0.0 (SDK's stable channel)
Android NDK 24.0.7956693 (beta 2, from the SDK's beta channel)
CMake 3.22.1 (SDK's canary channel)

android {
    ndkVersion "24.0.7956693-beta2"
    externalNativeBuild {
        cmake {
            path file('src/main/cpp/CMakeLists.txt')
            version '3.22.1'
        }
    }
}

@SpringBootApplication
@EnableSwagger2
public class Application {

// build.gradle
implementation "org.springdoc:springdoc-openapi-ui:1.6.4"

@SpringBootApplication
@OpenAPIDefinition
public class MyApplication {
    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }
}

// build.gradle
implementation "org.springdoc:springdoc-openapi-ui:1.6.4"

@SpringBootApplication
@OpenAPIDefinition
public class MyApplication {
    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }
}

@Bean
public WebMvcEndpointHandlerMapping webEndpointServletHandlerMapping(WebEndpointsSupplier webEndpointsSupplier, ServletEndpointsSupplier servletEndpointsSupplier, ControllerEndpointsSupplier controllerEndpointsSupplier, EndpointMediaTypes endpointMediaTypes, CorsEndpointProperties corsProperties, WebEndpointProperties webEndpointProperties, Environment environment) {
        List<ExposableEndpoint<?>> allEndpoints = new ArrayList();
        Collection<ExposableWebEndpoint> webEndpoints = webEndpointsSupplier.getEndpoints();
        allEndpoints.addAll(webEndpoints);
        allEndpoints.addAll(servletEndpointsSupplier.getEndpoints());
        allEndpoints.addAll(controllerEndpointsSupplier.getEndpoints());
        String basePath = webEndpointProperties.getBasePath();
        EndpointMapping endpointMapping = new EndpointMapping(basePath);
        boolean shouldRegisterLinksMapping = this.shouldRegisterLinksMapping(webEndpointProperties, environment, basePath);
        return new WebMvcEndpointHandlerMapping(endpointMapping, webEndpoints, endpointMediaTypes, corsProperties.toCorsConfiguration(), new EndpointLinksResolver(allEndpoints, basePath), shouldRegisterLinksMapping, null);
    }


private boolean shouldRegisterLinksMapping(WebEndpointProperties webEndpointProperties, Environment environment, String basePath) {
        return webEndpointProperties.getDiscovery().isEnabled() && (StringUtils.hasText(basePath) || ManagementPortType.get(environment).equals(ManagementPortType.DIFFERENT));
    }

@EnableSwagger2
@SpringBootApplication
@EnableSwagger2
public class Application {}

@EnableWebMvc
@SpringBootApplication
public class MyApp {
    public static void main(String[] args) {
        SpringApplication.run(MyApp.class);
    }
}

@Bean
    public WebMvcRequestHandlerProvider webMvcRequestHandlerProvider(Optional<ServletContext> servletContext, HandlerMethodResolver methodResolver, List<RequestMappingInfoHandlerMapping> handlerMappings) {
        handlerMappings = handlerMappings.stream().filter(rh -> rh.getClass().getName().contains("RequestMapping")).toList();
        return new WebMvcRequestHandlerProvider(servletContext, methodResolver, handlerMappings);
    }

Settings > Build, Execution, Deployment > Build Tools > Gradle > Gradle JDK.

Android SDK Command-line Tools (latest)

Android SDK Build Tools 31

Android SDK Platform tools (latest version 31)

flutter doctor --android-licenses

 C:\Program Files\Java\jdkXXXXX\bin 

C:\Users\Neha\AppData\Local\Android\Sdk\tools
C:\Users\Neha\AppData\Local\Android\Sdk\build-tools
C:\Users\Neha\AppData\Local\Android\Sdk\platform-tools

Android SDK Command-line Tools (latest)

Android SDK Build Tools 31

Android SDK Platform tools (latest version 31)

flutter doctor --android-licenses

 C:\Program Files\Java\jdkXXXXX\bin 

C:\Users\Neha\AppData\Local\Android\Sdk\tools
C:\Users\Neha\AppData\Local\Android\Sdk\build-tools
C:\Users\Neha\AppData\Local\Android\Sdk\platform-tools

Android SDK Command-line Tools (latest)

Android SDK Build Tools 31

Android SDK Platform tools (latest version 31)

flutter doctor --android-licenses

 C:\Program Files\Java\jdkXXXXX\bin 

C:\Users\Neha\AppData\Local\Android\Sdk\tools
C:\Users\Neha\AppData\Local\Android\Sdk\build-tools
C:\Users\Neha\AppData\Local\Android\Sdk\platform-tools

Android SDK Command-line Tools (latest)

Android SDK Build Tools 31

Android SDK Platform tools (latest version 31)

flutter doctor --android-licenses

 C:\Program Files\Java\jdkXXXXX\bin 

C:\Users\Neha\AppData\Local\Android\Sdk\tools
C:\Users\Neha\AppData\Local\Android\Sdk\build-tools
C:\Users\Neha\AppData\Local\Android\Sdk\platform-tools

sdkmanager.bat --install "cmdline-tools;latest --sdk_root=../

sdkmanager.bat "cmdline-tools;latest" --sdk_root=../

public class HiddenClassLambdaTest {

    public static void main(String[] args) throws Throwable {
        byte[] classFileContents = HiddenClassLambdaTest.class
            .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class")
            .readAllBytes();
        var hidden = MethodHandles.lookup()
            .defineHiddenClass(classFileContents, true, ClassOption.NESTMATE);
        Runnable lambdaRunnerInstance = (Runnable)hidden.findConstructor(
            hidden.lookupClass(), MethodType.methodType(void.class)).invoke();
        lambdaRunnerInstance.run();
    }

    static class LambdaRunner implements Runnable {
        LambdaRunner field = this;

        @Override
        public void run() {
        }
    }
}

    static class LambdaRunner implements Runnable {
        static void method(LambdaRunner arg) {
        }

        @Override
        public void run() {
            method(this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            System.out.println("" + this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = LambdaRunner::lambdaBody;
            runnable.run();
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            var lookup = MethodHandles.lookup();
            var noArgVoid = MethodType.methodType(void.class);
            try {
                MethodHandle mh = LambdaMetafactory.metafactory(lookup, "run",
                    MethodType.methodType(Runnable.class), noArgVoid,
                    lookup.findStatic(LambdaRunner.class, "lambdaBody", noArgVoid),
                    noArgVoid).getTarget();
                System.out.println("got factory");
                Runnable runnable = (Runnable)mh.invokeExact();
                System.out.println("got runnable");
                runnable.run();
            }
            catch(RuntimeException|Error e) {
                throw e;
            }
            catch(Throwable e) {
                throw new AssertionError(e);
            }
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

got factory
got runnable
Exception in thread "main" java.lang.NoClassDefFoundError: test/HiddenClassLambdaTest$LambdaRunner/0x0000000800c01400
    at test/test.HiddenClassLambdaTest.main(HiddenClassLambdaTest.java:15)
Caused by: java.lang.ClassNotFoundException: test.HiddenClassLambdaTest$LambdaRunner.0x0000000800c01400
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 1 more

public class HiddenClassLambdaTest {

    public static void main(String[] args) throws Throwable {
        byte[] classFileContents = HiddenClassLambdaTest.class
            .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class")
            .readAllBytes();
        var hidden = MethodHandles.lookup()
            .defineHiddenClass(classFileContents, true, ClassOption.NESTMATE);
        Runnable lambdaRunnerInstance = (Runnable)hidden.findConstructor(
            hidden.lookupClass(), MethodType.methodType(void.class)).invoke();
        lambdaRunnerInstance.run();
    }

    static class LambdaRunner implements Runnable {
        LambdaRunner field = this;

        @Override
        public void run() {
        }
    }
}

    static class LambdaRunner implements Runnable {
        static void method(LambdaRunner arg) {
        }

        @Override
        public void run() {
            method(this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            System.out.println("" + this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = LambdaRunner::lambdaBody;
            runnable.run();
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            var lookup = MethodHandles.lookup();
            var noArgVoid = MethodType.methodType(void.class);
            try {
                MethodHandle mh = LambdaMetafactory.metafactory(lookup, "run",
                    MethodType.methodType(Runnable.class), noArgVoid,
                    lookup.findStatic(LambdaRunner.class, "lambdaBody", noArgVoid),
                    noArgVoid).getTarget();
                System.out.println("got factory");
                Runnable runnable = (Runnable)mh.invokeExact();
                System.out.println("got runnable");
                runnable.run();
            }
            catch(RuntimeException|Error e) {
                throw e;
            }
            catch(Throwable e) {
                throw new AssertionError(e);
            }
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

got factory
got runnable
Exception in thread "main" java.lang.NoClassDefFoundError: test/HiddenClassLambdaTest$LambdaRunner/0x0000000800c01400
    at test/test.HiddenClassLambdaTest.main(HiddenClassLambdaTest.java:15)
Caused by: java.lang.ClassNotFoundException: test.HiddenClassLambdaTest$LambdaRunner.0x0000000800c01400
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 1 more

public class HiddenClassLambdaTest {

    public static void main(String[] args) throws Throwable {
        byte[] classFileContents = HiddenClassLambdaTest.class
            .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class")
            .readAllBytes();
        var hidden = MethodHandles.lookup()
            .defineHiddenClass(classFileContents, true, ClassOption.NESTMATE);
        Runnable lambdaRunnerInstance = (Runnable)hidden.findConstructor(
            hidden.lookupClass(), MethodType.methodType(void.class)).invoke();
        lambdaRunnerInstance.run();
    }

    static class LambdaRunner implements Runnable {
        LambdaRunner field = this;

        @Override
        public void run() {
        }
    }
}

    static class LambdaRunner implements Runnable {
        static void method(LambdaRunner arg) {
        }

        @Override
        public void run() {
            method(this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            System.out.println("" + this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = LambdaRunner::lambdaBody;
            runnable.run();
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            var lookup = MethodHandles.lookup();
            var noArgVoid = MethodType.methodType(void.class);
            try {
                MethodHandle mh = LambdaMetafactory.metafactory(lookup, "run",
                    MethodType.methodType(Runnable.class), noArgVoid,
                    lookup.findStatic(LambdaRunner.class, "lambdaBody", noArgVoid),
                    noArgVoid).getTarget();
                System.out.println("got factory");
                Runnable runnable = (Runnable)mh.invokeExact();
                System.out.println("got runnable");
                runnable.run();
            }
            catch(RuntimeException|Error e) {
                throw e;
            }
            catch(Throwable e) {
                throw new AssertionError(e);
            }
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

got factory
got runnable
Exception in thread "main" java.lang.NoClassDefFoundError: test/HiddenClassLambdaTest$LambdaRunner/0x0000000800c01400
    at test/test.HiddenClassLambdaTest.main(HiddenClassLambdaTest.java:15)
Caused by: java.lang.ClassNotFoundException: test.HiddenClassLambdaTest$LambdaRunner.0x0000000800c01400
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 1 more

public class HiddenClassLambdaTest {

    public static void main(String[] args) throws Throwable {
        byte[] classFileContents = HiddenClassLambdaTest.class
            .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class")
            .readAllBytes();
        var hidden = MethodHandles.lookup()
            .defineHiddenClass(classFileContents, true, ClassOption.NESTMATE);
        Runnable lambdaRunnerInstance = (Runnable)hidden.findConstructor(
            hidden.lookupClass(), MethodType.methodType(void.class)).invoke();
        lambdaRunnerInstance.run();
    }

    static class LambdaRunner implements Runnable {
        LambdaRunner field = this;

        @Override
        public void run() {
        }
    }
}

    static class LambdaRunner implements Runnable {
        static void method(LambdaRunner arg) {
        }

        @Override
        public void run() {
            method(this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            System.out.println("" + this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = LambdaRunner::lambdaBody;
            runnable.run();
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            var lookup = MethodHandles.lookup();
            var noArgVoid = MethodType.methodType(void.class);
            try {
                MethodHandle mh = LambdaMetafactory.metafactory(lookup, "run",
                    MethodType.methodType(Runnable.class), noArgVoid,
                    lookup.findStatic(LambdaRunner.class, "lambdaBody", noArgVoid),
                    noArgVoid).getTarget();
                System.out.println("got factory");
                Runnable runnable = (Runnable)mh.invokeExact();
                System.out.println("got runnable");
                runnable.run();
            }
            catch(RuntimeException|Error e) {
                throw e;
            }
            catch(Throwable e) {
                throw new AssertionError(e);
            }
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

got factory
got runnable
Exception in thread "main" java.lang.NoClassDefFoundError: test/HiddenClassLambdaTest$LambdaRunner/0x0000000800c01400
    at test/test.HiddenClassLambdaTest.main(HiddenClassLambdaTest.java:15)
Caused by: java.lang.ClassNotFoundException: test.HiddenClassLambdaTest$LambdaRunner.0x0000000800c01400
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 1 more

public class HiddenClassLambdaTest {

    public static void main(String[] args) throws Throwable {
        byte[] classFileContents = HiddenClassLambdaTest.class
            .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class")
            .readAllBytes();
        var hidden = MethodHandles.lookup()
            .defineHiddenClass(classFileContents, true, ClassOption.NESTMATE);
        Runnable lambdaRunnerInstance = (Runnable)hidden.findConstructor(
            hidden.lookupClass(), MethodType.methodType(void.class)).invoke();
        lambdaRunnerInstance.run();
    }

    static class LambdaRunner implements Runnable {
        LambdaRunner field = this;

        @Override
        public void run() {
        }
    }
}

    static class LambdaRunner implements Runnable {
        static void method(LambdaRunner arg) {
        }

        @Override
        public void run() {
            method(this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            System.out.println("" + this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = LambdaRunner::lambdaBody;
            runnable.run();
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            var lookup = MethodHandles.lookup();
            var noArgVoid = MethodType.methodType(void.class);
            try {
                MethodHandle mh = LambdaMetafactory.metafactory(lookup, "run",
                    MethodType.methodType(Runnable.class), noArgVoid,
                    lookup.findStatic(LambdaRunner.class, "lambdaBody", noArgVoid),
                    noArgVoid).getTarget();
                System.out.println("got factory");
                Runnable runnable = (Runnable)mh.invokeExact();
                System.out.println("got runnable");
                runnable.run();
            }
            catch(RuntimeException|Error e) {
                throw e;
            }
            catch(Throwable e) {
                throw new AssertionError(e);
            }
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

got factory
got runnable
Exception in thread "main" java.lang.NoClassDefFoundError: test/HiddenClassLambdaTest$LambdaRunner/0x0000000800c01400
    at test/test.HiddenClassLambdaTest.main(HiddenClassLambdaTest.java:15)
Caused by: java.lang.ClassNotFoundException: test.HiddenClassLambdaTest$LambdaRunner.0x0000000800c01400
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 1 more

public class HiddenClassLambdaTest {

    public static void main(String[] args) throws Throwable {
        byte[] classFileContents = HiddenClassLambdaTest.class
            .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class")
            .readAllBytes();
        var hidden = MethodHandles.lookup()
            .defineHiddenClass(classFileContents, true, ClassOption.NESTMATE);
        Runnable lambdaRunnerInstance = (Runnable)hidden.findConstructor(
            hidden.lookupClass(), MethodType.methodType(void.class)).invoke();
        lambdaRunnerInstance.run();
    }

    static class LambdaRunner implements Runnable {
        LambdaRunner field = this;

        @Override
        public void run() {
        }
    }
}

    static class LambdaRunner implements Runnable {
        static void method(LambdaRunner arg) {
        }

        @Override
        public void run() {
            method(this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            System.out.println("" + this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = LambdaRunner::lambdaBody;
            runnable.run();
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            var lookup = MethodHandles.lookup();
            var noArgVoid = MethodType.methodType(void.class);
            try {
                MethodHandle mh = LambdaMetafactory.metafactory(lookup, "run",
                    MethodType.methodType(Runnable.class), noArgVoid,
                    lookup.findStatic(LambdaRunner.class, "lambdaBody", noArgVoid),
                    noArgVoid).getTarget();
                System.out.println("got factory");
                Runnable runnable = (Runnable)mh.invokeExact();
                System.out.println("got runnable");
                runnable.run();
            }
            catch(RuntimeException|Error e) {
                throw e;
            }
            catch(Throwable e) {
                throw new AssertionError(e);
            }
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

got factory
got runnable
Exception in thread "main" java.lang.NoClassDefFoundError: test/HiddenClassLambdaTest$LambdaRunner/0x0000000800c01400
    at test/test.HiddenClassLambdaTest.main(HiddenClassLambdaTest.java:15)
Caused by: java.lang.ClassNotFoundException: test.HiddenClassLambdaTest$LambdaRunner.0x0000000800c01400
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 1 more

public class HiddenClassLambdaTest {

    public static void main(String[] args) throws Throwable {
        byte[] classFileContents = HiddenClassLambdaTest.class
            .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class")
            .readAllBytes();
        var hidden = MethodHandles.lookup()
            .defineHiddenClass(classFileContents, true, ClassOption.NESTMATE);
        Runnable lambdaRunnerInstance = (Runnable)hidden.findConstructor(
            hidden.lookupClass(), MethodType.methodType(void.class)).invoke();
        lambdaRunnerInstance.run();
    }

    static class LambdaRunner implements Runnable {
        LambdaRunner field = this;

        @Override
        public void run() {
        }
    }
}

    static class LambdaRunner implements Runnable {
        static void method(LambdaRunner arg) {
        }

        @Override
        public void run() {
            method(this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            System.out.println("" + this);
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            Runnable runnable = LambdaRunner::lambdaBody;
            runnable.run();
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

    static class LambdaRunner implements Runnable {
        @Override
        public void run() {
            var lookup = MethodHandles.lookup();
            var noArgVoid = MethodType.methodType(void.class);
            try {
                MethodHandle mh = LambdaMetafactory.metafactory(lookup, "run",
                    MethodType.methodType(Runnable.class), noArgVoid,
                    lookup.findStatic(LambdaRunner.class, "lambdaBody", noArgVoid),
                    noArgVoid).getTarget();
                System.out.println("got factory");
                Runnable runnable = (Runnable)mh.invokeExact();
                System.out.println("got runnable");
                runnable.run();
            }
            catch(RuntimeException|Error e) {
                throw e;
            }
            catch(Throwable e) {
                throw new AssertionError(e);
            }
        }
        private static void lambdaBody() {
            System.out.println("Success");
        }
    }

got factory
got runnable
Exception in thread "main" java.lang.NoClassDefFoundError: test/HiddenClassLambdaTest$LambdaRunner/0x0000000800c01400
    at test/test.HiddenClassLambdaTest.main(HiddenClassLambdaTest.java:15)
Caused by: java.lang.ClassNotFoundException: test.HiddenClassLambdaTest$LambdaRunner.0x0000000800c01400
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
    ... 1 more

public class HiddenClassLambdaTest {
    /** This class is to be loaded and executed as hidden class */
    public static final class LambdaRunner implements Runnable {
        @Override public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }
    
    public static void main(String[] args) throws Throwable {
        // Path to the class file of the nested class defined above
        byte[] classFileContents = HiddenClassLambdaTest.class
                .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class").readAllBytes();
        
        classFileContents = processLambdas(classFileContents);
        MethodHandles.Lookup hiddenClass = MethodHandles.lookup().defineHiddenClass(classFileContents, true);
        Runnable lambdaRunnerInstance = (Runnable) (
                hiddenClass.findConstructor(hiddenClass.lookupClass(), methodType(void.class))
                ).asType(methodType(Runnable.class)).invokeExact();
        lambdaRunnerInstance.run();
    }

    public static CallSite metafactory(MethodHandles.Lookup l, String name, MethodType mt,
            MethodType interfaceType, MethodHandle mh, MethodType dynamicMethodType) throws Throwable {
        MethodHandle invoker = MethodHandles.exactInvoker(mh.type());
        if (mt.parameterCount() == 0) {
            // Non-capturing lambda
            mt = mt.appendParameterTypes(MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, mt, interfaceType, invoker, dynamicMethodType);
            Object instance = cs.dynamicInvoker().asType(methodType(Object.class, MethodHandle.class)).invokeExact(mh);
            return new ConstantCallSite(MethodHandles.constant(mt.returnType(), instance));
        } else {
            // capturing
            MethodType lambdaMt = mt.insertParameterTypes(0, MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, lambdaMt, interfaceType, invoker, dynamicMethodType);
            return new ConstantCallSite(cs.dynamicInvoker().bindTo(mh));
        }
    }

    public static CallSite altMetafactory(MethodHandles.Lookup l, String name, MethodType mt, Object... args) {
        throw new UnsupportedOperationException("Not Implemented");
    }

    private static byte[] processLambdas(byte[] bytes) {
        ClassReader cr = new ClassReader(bytes);
        ClassWriter cw = new ClassWriter(cr, 0);
        
        ClassVisitor cv = cw;
        cv = new LambdaTransformer(cv);
        
        cr.accept(cv, 0);
        return cw.toByteArray();
    }

    private static class LambdaTransformer extends ClassVisitor {
        LambdaTransformer(ClassVisitor parent) {
            super(ASM9, parent);
        }
        
        @Override
        public MethodVisitor visitMethod(int access, String name, String descriptor,
                String signature, String[] exceptions) {
            return new LambdaMethodTransformer(super.visitMethod(access, name, descriptor, signature, exceptions));
        }
        
        private static class LambdaMethodTransformer extends MethodVisitor {
            public LambdaMethodTransformer(MethodVisitor parent) {
                super(ASM9, parent);
            }
            
            private static final ClassDesc CD_LambdaMetafactory = LambdaMetafactory.class.describeConstable().orElseThrow();
            private static final ClassDesc CD_HiddenLambdaTest = HiddenClassLambdaTest.class.describeConstable().orElseThrow();
            
            private static final DirectMethodHandleDesc LMF_FACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType);
            private static final DirectMethodHandleDesc LMF_ALTFACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "altMetafactory", CD_Object.arrayType());
            
            private static final Handle MY_FACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType));
            private static final Handle MY_ALTFACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "altMetafactory", CD_CallSite, CD_Object.arrayType()));
            
            @Override
            public void visitInvokeDynamicInsn(String name, String descriptor,
                    Handle bootstrapMethodHandle, Object... bootstrapMethodArguments) {
                MethodHandleDesc h = fromASM(bootstrapMethodHandle);
                if (h.equals(LMF_FACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor,
                            MY_FACTORY, bootstrapMethodArguments);
                } else if (h.equals(LMF_ALTFACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor, MY_ALTFACTORY, bootstrapMethodArguments);
                } else {
                    super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, bootstrapMethodArguments);
                }
            }

            private static MethodHandleDesc fromASM(Handle h) {
                return MethodHandleDesc.of(Kind.valueOf(h.getTag(), h.isInterface()),
                        ClassDesc.ofDescriptor("L" + h.getOwner() + ";"),
                        h.getName(), h.getDesc());
            }
            
            private static Handle toASM(DirectMethodHandleDesc desc) {
                return new Handle(desc.refKind(), toInternal(desc.owner()), desc.methodName(), desc.lookupDescriptor(), desc.isOwnerInterface());
            }
            
            private static String toInternal(TypeDescriptor.OfField<?> desc) {
                String d = desc.descriptorString();
                if (d.charAt(0) != 'L') {
                    throw new IllegalArgumentException("Not a valid internal type: " + d);
                }
                return d.substring(1, d.length() - 1); // Strip "L" + ";"
            }
        }
    }
}

public class HiddenClassLambdaTest {
    /** This class is to be loaded and executed as hidden class */
    public static final class LambdaRunner implements Runnable {
        @Override public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }
    
    public static void main(String[] args) throws Throwable {
        // Path to the class file of the nested class defined above
        byte[] classFileContents = HiddenClassLambdaTest.class
                .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class").readAllBytes();
        
        classFileContents = processLambdas(classFileContents);
        MethodHandles.Lookup hiddenClass = MethodHandles.lookup().defineHiddenClass(classFileContents, true);
        Runnable lambdaRunnerInstance = (Runnable) (
                hiddenClass.findConstructor(hiddenClass.lookupClass(), methodType(void.class))
                ).asType(methodType(Runnable.class)).invokeExact();
        lambdaRunnerInstance.run();
    }

    public static CallSite metafactory(MethodHandles.Lookup l, String name, MethodType mt,
            MethodType interfaceType, MethodHandle mh, MethodType dynamicMethodType) throws Throwable {
        MethodHandle invoker = MethodHandles.exactInvoker(mh.type());
        if (mt.parameterCount() == 0) {
            // Non-capturing lambda
            mt = mt.appendParameterTypes(MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, mt, interfaceType, invoker, dynamicMethodType);
            Object instance = cs.dynamicInvoker().asType(methodType(Object.class, MethodHandle.class)).invokeExact(mh);
            return new ConstantCallSite(MethodHandles.constant(mt.returnType(), instance));
        } else {
            // capturing
            MethodType lambdaMt = mt.insertParameterTypes(0, MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, lambdaMt, interfaceType, invoker, dynamicMethodType);
            return new ConstantCallSite(cs.dynamicInvoker().bindTo(mh));
        }
    }

    public static CallSite altMetafactory(MethodHandles.Lookup l, String name, MethodType mt, Object... args) {
        throw new UnsupportedOperationException("Not Implemented");
    }

    private static byte[] processLambdas(byte[] bytes) {
        ClassReader cr = new ClassReader(bytes);
        ClassWriter cw = new ClassWriter(cr, 0);
        
        ClassVisitor cv = cw;
        cv = new LambdaTransformer(cv);
        
        cr.accept(cv, 0);
        return cw.toByteArray();
    }

    private static class LambdaTransformer extends ClassVisitor {
        LambdaTransformer(ClassVisitor parent) {
            super(ASM9, parent);
        }
        
        @Override
        public MethodVisitor visitMethod(int access, String name, String descriptor,
                String signature, String[] exceptions) {
            return new LambdaMethodTransformer(super.visitMethod(access, name, descriptor, signature, exceptions));
        }
        
        private static class LambdaMethodTransformer extends MethodVisitor {
            public LambdaMethodTransformer(MethodVisitor parent) {
                super(ASM9, parent);
            }
            
            private static final ClassDesc CD_LambdaMetafactory = LambdaMetafactory.class.describeConstable().orElseThrow();
            private static final ClassDesc CD_HiddenLambdaTest = HiddenClassLambdaTest.class.describeConstable().orElseThrow();
            
            private static final DirectMethodHandleDesc LMF_FACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType);
            private static final DirectMethodHandleDesc LMF_ALTFACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "altMetafactory", CD_Object.arrayType());
            
            private static final Handle MY_FACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType));
            private static final Handle MY_ALTFACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "altMetafactory", CD_CallSite, CD_Object.arrayType()));
            
            @Override
            public void visitInvokeDynamicInsn(String name, String descriptor,
                    Handle bootstrapMethodHandle, Object... bootstrapMethodArguments) {
                MethodHandleDesc h = fromASM(bootstrapMethodHandle);
                if (h.equals(LMF_FACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor,
                            MY_FACTORY, bootstrapMethodArguments);
                } else if (h.equals(LMF_ALTFACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor, MY_ALTFACTORY, bootstrapMethodArguments);
                } else {
                    super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, bootstrapMethodArguments);
                }
            }

            private static MethodHandleDesc fromASM(Handle h) {
                return MethodHandleDesc.of(Kind.valueOf(h.getTag(), h.isInterface()),
                        ClassDesc.ofDescriptor("L" + h.getOwner() + ";"),
                        h.getName(), h.getDesc());
            }
            
            private static Handle toASM(DirectMethodHandleDesc desc) {
                return new Handle(desc.refKind(), toInternal(desc.owner()), desc.methodName(), desc.lookupDescriptor(), desc.isOwnerInterface());
            }
            
            private static String toInternal(TypeDescriptor.OfField<?> desc) {
                String d = desc.descriptorString();
                if (d.charAt(0) != 'L') {
                    throw new IllegalArgumentException("Not a valid internal type: " + d);
                }
                return d.substring(1, d.length() - 1); // Strip "L" + ";"
            }
        }
    }
}

public class HiddenClassLambdaTest {
    /** This class is to be loaded and executed as hidden class */
    public static final class LambdaRunner implements Runnable {
        @Override public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }
    
    public static void main(String[] args) throws Throwable {
        // Path to the class file of the nested class defined above
        byte[] classFileContents = HiddenClassLambdaTest.class
                .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class").readAllBytes();
        
        classFileContents = processLambdas(classFileContents);
        MethodHandles.Lookup hiddenClass = MethodHandles.lookup().defineHiddenClass(classFileContents, true);
        Runnable lambdaRunnerInstance = (Runnable) (
                hiddenClass.findConstructor(hiddenClass.lookupClass(), methodType(void.class))
                ).asType(methodType(Runnable.class)).invokeExact();
        lambdaRunnerInstance.run();
    }

    public static CallSite metafactory(MethodHandles.Lookup l, String name, MethodType mt,
            MethodType interfaceType, MethodHandle mh, MethodType dynamicMethodType) throws Throwable {
        MethodHandle invoker = MethodHandles.exactInvoker(mh.type());
        if (mt.parameterCount() == 0) {
            // Non-capturing lambda
            mt = mt.appendParameterTypes(MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, mt, interfaceType, invoker, dynamicMethodType);
            Object instance = cs.dynamicInvoker().asType(methodType(Object.class, MethodHandle.class)).invokeExact(mh);
            return new ConstantCallSite(MethodHandles.constant(mt.returnType(), instance));
        } else {
            // capturing
            MethodType lambdaMt = mt.insertParameterTypes(0, MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, lambdaMt, interfaceType, invoker, dynamicMethodType);
            return new ConstantCallSite(cs.dynamicInvoker().bindTo(mh));
        }
    }

    public static CallSite altMetafactory(MethodHandles.Lookup l, String name, MethodType mt, Object... args) {
        throw new UnsupportedOperationException("Not Implemented");
    }

    private static byte[] processLambdas(byte[] bytes) {
        ClassReader cr = new ClassReader(bytes);
        ClassWriter cw = new ClassWriter(cr, 0);
        
        ClassVisitor cv = cw;
        cv = new LambdaTransformer(cv);
        
        cr.accept(cv, 0);
        return cw.toByteArray();
    }

    private static class LambdaTransformer extends ClassVisitor {
        LambdaTransformer(ClassVisitor parent) {
            super(ASM9, parent);
        }
        
        @Override
        public MethodVisitor visitMethod(int access, String name, String descriptor,
                String signature, String[] exceptions) {
            return new LambdaMethodTransformer(super.visitMethod(access, name, descriptor, signature, exceptions));
        }
        
        private static class LambdaMethodTransformer extends MethodVisitor {
            public LambdaMethodTransformer(MethodVisitor parent) {
                super(ASM9, parent);
            }
            
            private static final ClassDesc CD_LambdaMetafactory = LambdaMetafactory.class.describeConstable().orElseThrow();
            private static final ClassDesc CD_HiddenLambdaTest = HiddenClassLambdaTest.class.describeConstable().orElseThrow();
            
            private static final DirectMethodHandleDesc LMF_FACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType);
            private static final DirectMethodHandleDesc LMF_ALTFACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "altMetafactory", CD_Object.arrayType());
            
            private static final Handle MY_FACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType));
            private static final Handle MY_ALTFACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "altMetafactory", CD_CallSite, CD_Object.arrayType()));
            
            @Override
            public void visitInvokeDynamicInsn(String name, String descriptor,
                    Handle bootstrapMethodHandle, Object... bootstrapMethodArguments) {
                MethodHandleDesc h = fromASM(bootstrapMethodHandle);
                if (h.equals(LMF_FACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor,
                            MY_FACTORY, bootstrapMethodArguments);
                } else if (h.equals(LMF_ALTFACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor, MY_ALTFACTORY, bootstrapMethodArguments);
                } else {
                    super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, bootstrapMethodArguments);
                }
            }

            private static MethodHandleDesc fromASM(Handle h) {
                return MethodHandleDesc.of(Kind.valueOf(h.getTag(), h.isInterface()),
                        ClassDesc.ofDescriptor("L" + h.getOwner() + ";"),
                        h.getName(), h.getDesc());
            }
            
            private static Handle toASM(DirectMethodHandleDesc desc) {
                return new Handle(desc.refKind(), toInternal(desc.owner()), desc.methodName(), desc.lookupDescriptor(), desc.isOwnerInterface());
            }
            
            private static String toInternal(TypeDescriptor.OfField<?> desc) {
                String d = desc.descriptorString();
                if (d.charAt(0) != 'L') {
                    throw new IllegalArgumentException("Not a valid internal type: " + d);
                }
                return d.substring(1, d.length() - 1); // Strip "L" + ";"
            }
        }
    }
}

public class HiddenClassLambdaTest {
    /** This class is to be loaded and executed as hidden class */
    public static final class LambdaRunner implements Runnable {
        @Override public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }
    
    public static void main(String[] args) throws Throwable {
        // Path to the class file of the nested class defined above
        byte[] classFileContents = HiddenClassLambdaTest.class
                .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class").readAllBytes();
        
        classFileContents = processLambdas(classFileContents);
        MethodHandles.Lookup hiddenClass = MethodHandles.lookup().defineHiddenClass(classFileContents, true);
        Runnable lambdaRunnerInstance = (Runnable) (
                hiddenClass.findConstructor(hiddenClass.lookupClass(), methodType(void.class))
                ).asType(methodType(Runnable.class)).invokeExact();
        lambdaRunnerInstance.run();
    }

    public static CallSite metafactory(MethodHandles.Lookup l, String name, MethodType mt,
            MethodType interfaceType, MethodHandle mh, MethodType dynamicMethodType) throws Throwable {
        MethodHandle invoker = MethodHandles.exactInvoker(mh.type());
        if (mt.parameterCount() == 0) {
            // Non-capturing lambda
            mt = mt.appendParameterTypes(MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, mt, interfaceType, invoker, dynamicMethodType);
            Object instance = cs.dynamicInvoker().asType(methodType(Object.class, MethodHandle.class)).invokeExact(mh);
            return new ConstantCallSite(MethodHandles.constant(mt.returnType(), instance));
        } else {
            // capturing
            MethodType lambdaMt = mt.insertParameterTypes(0, MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, lambdaMt, interfaceType, invoker, dynamicMethodType);
            return new ConstantCallSite(cs.dynamicInvoker().bindTo(mh));
        }
    }

    public static CallSite altMetafactory(MethodHandles.Lookup l, String name, MethodType mt, Object... args) {
        throw new UnsupportedOperationException("Not Implemented");
    }

    private static byte[] processLambdas(byte[] bytes) {
        ClassReader cr = new ClassReader(bytes);
        ClassWriter cw = new ClassWriter(cr, 0);
        
        ClassVisitor cv = cw;
        cv = new LambdaTransformer(cv);
        
        cr.accept(cv, 0);
        return cw.toByteArray();
    }

    private static class LambdaTransformer extends ClassVisitor {
        LambdaTransformer(ClassVisitor parent) {
            super(ASM9, parent);
        }
        
        @Override
        public MethodVisitor visitMethod(int access, String name, String descriptor,
                String signature, String[] exceptions) {
            return new LambdaMethodTransformer(super.visitMethod(access, name, descriptor, signature, exceptions));
        }
        
        private static class LambdaMethodTransformer extends MethodVisitor {
            public LambdaMethodTransformer(MethodVisitor parent) {
                super(ASM9, parent);
            }
            
            private static final ClassDesc CD_LambdaMetafactory = LambdaMetafactory.class.describeConstable().orElseThrow();
            private static final ClassDesc CD_HiddenLambdaTest = HiddenClassLambdaTest.class.describeConstable().orElseThrow();
            
            private static final DirectMethodHandleDesc LMF_FACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType);
            private static final DirectMethodHandleDesc LMF_ALTFACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "altMetafactory", CD_Object.arrayType());
            
            private static final Handle MY_FACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType));
            private static final Handle MY_ALTFACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "altMetafactory", CD_CallSite, CD_Object.arrayType()));
            
            @Override
            public void visitInvokeDynamicInsn(String name, String descriptor,
                    Handle bootstrapMethodHandle, Object... bootstrapMethodArguments) {
                MethodHandleDesc h = fromASM(bootstrapMethodHandle);
                if (h.equals(LMF_FACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor,
                            MY_FACTORY, bootstrapMethodArguments);
                } else if (h.equals(LMF_ALTFACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor, MY_ALTFACTORY, bootstrapMethodArguments);
                } else {
                    super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, bootstrapMethodArguments);
                }
            }

            private static MethodHandleDesc fromASM(Handle h) {
                return MethodHandleDesc.of(Kind.valueOf(h.getTag(), h.isInterface()),
                        ClassDesc.ofDescriptor("L" + h.getOwner() + ";"),
                        h.getName(), h.getDesc());
            }
            
            private static Handle toASM(DirectMethodHandleDesc desc) {
                return new Handle(desc.refKind(), toInternal(desc.owner()), desc.methodName(), desc.lookupDescriptor(), desc.isOwnerInterface());
            }
            
            private static String toInternal(TypeDescriptor.OfField<?> desc) {
                String d = desc.descriptorString();
                if (d.charAt(0) != 'L') {
                    throw new IllegalArgumentException("Not a valid internal type: " + d);
                }
                return d.substring(1, d.length() - 1); // Strip "L" + ";"
            }
        }
    }
}

public class HiddenClassLambdaTest {
    /** This class is to be loaded and executed as hidden class */
    public static final class LambdaRunner implements Runnable {
        @Override public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }
    
    public static void main(String[] args) throws Throwable {
        // Path to the class file of the nested class defined above
        byte[] classFileContents = HiddenClassLambdaTest.class
                .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class").readAllBytes();
        
        classFileContents = processLambdas(classFileContents);
        MethodHandles.Lookup hiddenClass = MethodHandles.lookup().defineHiddenClass(classFileContents, true);
        Runnable lambdaRunnerInstance = (Runnable) (
                hiddenClass.findConstructor(hiddenClass.lookupClass(), methodType(void.class))
                ).asType(methodType(Runnable.class)).invokeExact();
        lambdaRunnerInstance.run();
    }

    public static CallSite metafactory(MethodHandles.Lookup l, String name, MethodType mt,
            MethodType interfaceType, MethodHandle mh, MethodType dynamicMethodType) throws Throwable {
        MethodHandle invoker = MethodHandles.exactInvoker(mh.type());
        if (mt.parameterCount() == 0) {
            // Non-capturing lambda
            mt = mt.appendParameterTypes(MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, mt, interfaceType, invoker, dynamicMethodType);
            Object instance = cs.dynamicInvoker().asType(methodType(Object.class, MethodHandle.class)).invokeExact(mh);
            return new ConstantCallSite(MethodHandles.constant(mt.returnType(), instance));
        } else {
            // capturing
            MethodType lambdaMt = mt.insertParameterTypes(0, MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, lambdaMt, interfaceType, invoker, dynamicMethodType);
            return new ConstantCallSite(cs.dynamicInvoker().bindTo(mh));
        }
    }

    public static CallSite altMetafactory(MethodHandles.Lookup l, String name, MethodType mt, Object... args) {
        throw new UnsupportedOperationException("Not Implemented");
    }

    private static byte[] processLambdas(byte[] bytes) {
        ClassReader cr = new ClassReader(bytes);
        ClassWriter cw = new ClassWriter(cr, 0);
        
        ClassVisitor cv = cw;
        cv = new LambdaTransformer(cv);
        
        cr.accept(cv, 0);
        return cw.toByteArray();
    }

    private static class LambdaTransformer extends ClassVisitor {
        LambdaTransformer(ClassVisitor parent) {
            super(ASM9, parent);
        }
        
        @Override
        public MethodVisitor visitMethod(int access, String name, String descriptor,
                String signature, String[] exceptions) {
            return new LambdaMethodTransformer(super.visitMethod(access, name, descriptor, signature, exceptions));
        }
        
        private static class LambdaMethodTransformer extends MethodVisitor {
            public LambdaMethodTransformer(MethodVisitor parent) {
                super(ASM9, parent);
            }
            
            private static final ClassDesc CD_LambdaMetafactory = LambdaMetafactory.class.describeConstable().orElseThrow();
            private static final ClassDesc CD_HiddenLambdaTest = HiddenClassLambdaTest.class.describeConstable().orElseThrow();
            
            private static final DirectMethodHandleDesc LMF_FACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType);
            private static final DirectMethodHandleDesc LMF_ALTFACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "altMetafactory", CD_Object.arrayType());
            
            private static final Handle MY_FACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType));
            private static final Handle MY_ALTFACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "altMetafactory", CD_CallSite, CD_Object.arrayType()));
            
            @Override
            public void visitInvokeDynamicInsn(String name, String descriptor,
                    Handle bootstrapMethodHandle, Object... bootstrapMethodArguments) {
                MethodHandleDesc h = fromASM(bootstrapMethodHandle);
                if (h.equals(LMF_FACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor,
                            MY_FACTORY, bootstrapMethodArguments);
                } else if (h.equals(LMF_ALTFACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor, MY_ALTFACTORY, bootstrapMethodArguments);
                } else {
                    super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, bootstrapMethodArguments);
                }
            }

            private static MethodHandleDesc fromASM(Handle h) {
                return MethodHandleDesc.of(Kind.valueOf(h.getTag(), h.isInterface()),
                        ClassDesc.ofDescriptor("L" + h.getOwner() + ";"),
                        h.getName(), h.getDesc());
            }
            
            private static Handle toASM(DirectMethodHandleDesc desc) {
                return new Handle(desc.refKind(), toInternal(desc.owner()), desc.methodName(), desc.lookupDescriptor(), desc.isOwnerInterface());
            }
            
            private static String toInternal(TypeDescriptor.OfField<?> desc) {
                String d = desc.descriptorString();
                if (d.charAt(0) != 'L') {
                    throw new IllegalArgumentException("Not a valid internal type: " + d);
                }
                return d.substring(1, d.length() - 1); // Strip "L" + ";"
            }
        }
    }
}

public class HiddenClassLambdaTest {
    /** This class is to be loaded and executed as hidden class */
    public static final class LambdaRunner implements Runnable {
        @Override public void run() {
            Runnable runnable = () -> System.out.println("Success");
            runnable.run();
        }
    }
    
    public static void main(String[] args) throws Throwable {
        // Path to the class file of the nested class defined above
        byte[] classFileContents = HiddenClassLambdaTest.class
                .getResourceAsStream("HiddenClassLambdaTest$LambdaRunner.class").readAllBytes();
        
        classFileContents = processLambdas(classFileContents);
        MethodHandles.Lookup hiddenClass = MethodHandles.lookup().defineHiddenClass(classFileContents, true);
        Runnable lambdaRunnerInstance = (Runnable) (
                hiddenClass.findConstructor(hiddenClass.lookupClass(), methodType(void.class))
                ).asType(methodType(Runnable.class)).invokeExact();
        lambdaRunnerInstance.run();
    }

    public static CallSite metafactory(MethodHandles.Lookup l, String name, MethodType mt,
            MethodType interfaceType, MethodHandle mh, MethodType dynamicMethodType) throws Throwable {
        MethodHandle invoker = MethodHandles.exactInvoker(mh.type());
        if (mt.parameterCount() == 0) {
            // Non-capturing lambda
            mt = mt.appendParameterTypes(MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, mt, interfaceType, invoker, dynamicMethodType);
            Object instance = cs.dynamicInvoker().asType(methodType(Object.class, MethodHandle.class)).invokeExact(mh);
            return new ConstantCallSite(MethodHandles.constant(mt.returnType(), instance));
        } else {
            // capturing
            MethodType lambdaMt = mt.insertParameterTypes(0, MethodHandle.class);
            CallSite cs = LambdaMetafactory.metafactory(l, name, lambdaMt, interfaceType, invoker, dynamicMethodType);
            return new ConstantCallSite(cs.dynamicInvoker().bindTo(mh));
        }
    }

    public static CallSite altMetafactory(MethodHandles.Lookup l, String name, MethodType mt, Object... args) {
        throw new UnsupportedOperationException("Not Implemented");
    }

    private static byte[] processLambdas(byte[] bytes) {
        ClassReader cr = new ClassReader(bytes);
        ClassWriter cw = new ClassWriter(cr, 0);
        
        ClassVisitor cv = cw;
        cv = new LambdaTransformer(cv);
        
        cr.accept(cv, 0);
        return cw.toByteArray();
    }

    private static class LambdaTransformer extends ClassVisitor {
        LambdaTransformer(ClassVisitor parent) {
            super(ASM9, parent);
        }
        
        @Override
        public MethodVisitor visitMethod(int access, String name, String descriptor,
                String signature, String[] exceptions) {
            return new LambdaMethodTransformer(super.visitMethod(access, name, descriptor, signature, exceptions));
        }
        
        private static class LambdaMethodTransformer extends MethodVisitor {
            public LambdaMethodTransformer(MethodVisitor parent) {
                super(ASM9, parent);
            }
            
            private static final ClassDesc CD_LambdaMetafactory = LambdaMetafactory.class.describeConstable().orElseThrow();
            private static final ClassDesc CD_HiddenLambdaTest = HiddenClassLambdaTest.class.describeConstable().orElseThrow();
            
            private static final DirectMethodHandleDesc LMF_FACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType);
            private static final DirectMethodHandleDesc LMF_ALTFACTORY = ofCallsiteBootstrap(
                    CD_LambdaMetafactory, "altMetafactory", CD_Object.arrayType());
            
            private static final Handle MY_FACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "metafactory", CD_CallSite, CD_MethodType, CD_MethodHandle, CD_MethodType));
            private static final Handle MY_ALTFACTORY = toASM(ofCallsiteBootstrap(CD_HiddenLambdaTest, "altMetafactory", CD_CallSite, CD_Object.arrayType()));
            
            @Override
            public void visitInvokeDynamicInsn(String name, String descriptor,
                    Handle bootstrapMethodHandle, Object... bootstrapMethodArguments) {
                MethodHandleDesc h = fromASM(bootstrapMethodHandle);
                if (h.equals(LMF_FACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor,
                            MY_FACTORY, bootstrapMethodArguments);
                } else if (h.equals(LMF_ALTFACTORY)) {
                    super.visitInvokeDynamicInsn(name, descriptor, MY_ALTFACTORY, bootstrapMethodArguments);
                } else {
                    super.visitInvokeDynamicInsn(name, descriptor, bootstrapMethodHandle, bootstrapMethodArguments);
                }
            }

            private static MethodHandleDesc fromASM(Handle h) {
                return MethodHandleDesc.of(Kind.valueOf(h.getTag(), h.isInterface()),
                        ClassDesc.ofDescriptor("L" + h.getOwner() + ";"),
                        h.getName(), h.getDesc());
            }
            
            private static Handle toASM(DirectMethodHandleDesc desc) {
                return new Handle(desc.refKind(), toInternal(desc.owner()), desc.methodName(), desc.lookupDescriptor(), desc.isOwnerInterface());
            }
            
            private static String toInternal(TypeDescriptor.OfField<?> desc) {
                String d = desc.descriptorString();
                if (d.charAt(0) != 'L') {
                    throw new IllegalArgumentException("Not a valid internal type: " + d);
                }
                return d.substring(1, d.length() - 1); // Strip "L" + ";"
            }
        }
    }
}

<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-boot-starter</artifactId>
    <version>3.0.0</version>
</dependency>

@Bean
public static BeanPostProcessor springfoxHandlerProviderBeanPostProcessor() {
    return new BeanPostProcessor() {

        @Override
        public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
            if (bean instanceof WebMvcRequestHandlerProvider || bean instanceof WebFluxRequestHandlerProvider) {
                customizeSpringfoxHandlerMappings(getHandlerMappings(bean));
            }
            return bean;
        }

        private <T extends RequestMappingInfoHandlerMapping> void customizeSpringfoxHandlerMappings(List<T> mappings) {
            List<T> copy = mappings.stream()
                .filter(mapping -> mapping.getPatternParser() == null)
                .collect(Collectors.toList());
            mappings.clear();
            mappings.addAll(copy);
        }

        @SuppressWarnings("unchecked")
        private List<RequestMappingInfoHandlerMapping> getHandlerMappings(Object bean) {
            try {
                Field field = ReflectionUtils.findField(bean.getClass(), "handlerMappings");
                field.setAccessible(true);
                return (List<RequestMappingInfoHandlerMapping>) field.get(bean);
            } catch (IllegalArgumentException | IllegalAccessException e) {
                throw new IllegalStateException(e);
            }
        }
    };
}

public class SpringFoxConfig {

    @Bean
    public Docket api() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.withClassAnnotation(RestController.class))
                .paths(PathSelectors.any())
                .build().apiInfo(getApiInfo());
    }
    
    private ApiInfo getApiInfo() {
        return new ApiInfo(
                "Api Usuarios",
                "prueba global logic",
                "1",
                "TERMS OF SERVICE URL",
                new Contact("Gabriel Hernández","URL","gabriel.hernandez.u@gmail.com"),
                "LICENSE",
                "LICENSE URL",
                Collections.emptyList()
        );
    }
    
    @Bean
    public static BeanPostProcessor springfoxHandlerProviderBeanPostProcessor() {
        return new BeanPostProcessor() {

            @Override
            public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
                if (bean instanceof WebMvcRequestHandlerProvider ) {
                    customizeSpringfoxHandlerMappings(getHandlerMappings(bean));
                }
                return bean;
            }

            private <T extends RequestMappingInfoHandlerMapping> void customizeSpringfoxHandlerMappings(List<T> mappings) {
                List<T> copy = mappings.stream()
                    .filter(mapping -> mapping.getPatternParser() == null)
                    .collect(Collectors.toList());
                mappings.clear();
                mappings.addAll(copy);
            }

            @SuppressWarnings("unchecked")
            private List<RequestMappingInfoHandlerMapping> getHandlerMappings(Object bean) {
                try {
                    Field field = ReflectionUtils.findField(bean.getClass(), "handlerMappings");
                    field.setAccessible(true);
                    return (List<RequestMappingInfoHandlerMapping>) field.get(bean);
                } catch (IllegalArgumentException | IllegalAccessException e) {
                    throw new IllegalStateException(e);
                }
            }
        };
    }    
}

@EnableWebMvc
@SpringBootApplication
public class MyApp {
    public static void main(String[] args) {
        SpringApplication.run(MyApp.class);
    }
}

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-webflux</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-webflux</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>

@Bean
public WebMvcEndpointHandlerMapping webEndpointServletHandlerMapping(WebEndpointsSupplier webEndpointsSupplier, ServletEndpointsSupplier servletEndpointsSupplier, ControllerEndpointsSupplier controllerEndpointsSupplier, EndpointMediaTypes endpointMediaTypes, CorsEndpointProperties corsProperties, WebEndpointProperties webEndpointProperties, Environment environment) {
        List<ExposableEndpoint<?>> allEndpoints = new ArrayList<>();
        Collection<ExposableWebEndpoint> webEndpoints = webEndpointsSupplier.getEndpoints();
        allEndpoints.addAll(webEndpoints);
        allEndpoints.addAll(servletEndpointsSupplier.getEndpoints());
        allEndpoints.addAll(controllerEndpointsSupplier.getEndpoints());
        String basePath = webEndpointProperties.getBasePath();
        EndpointMapping endpointMapping = new EndpointMapping(basePath);
        boolean shouldRegisterLinksMapping = this.shouldRegisterLinksMapping(webEndpointProperties, environment, basePath);
        return new WebMvcEndpointHandlerMapping(endpointMapping, webEndpoints, endpointMediaTypes, corsProperties.toCorsConfiguration(), new EndpointLinksResolver(allEndpoints, basePath), shouldRegisterLinksMapping, null);
    }


private boolean shouldRegisterLinksMapping(WebEndpointProperties webEndpointProperties, Environment environment, String basePath) {
        return webEndpointProperties.getDiscovery().isEnabled() && (StringUtils.hasText(basePath) || ManagementPortType.get(environment).equals(ManagementPortType.DIFFERENT));
    }

[~]$ /usr/libexec/java_home -V

Matching Java Virtual Machines (4):
    17.0 (x86_64) "Oracle Corporation" - "OpenJDK 17.0" /Users/ciccio/Library/Java/JavaVirtualMachines/openjdk-17.0/Contents/Home
    14.0.1 (x86_64) "Oracle Corporation" - "OpenJDK 14.0.1" /Users/ciccio/Library/Java/JavaVirtualMachines/openjdk-14.0.1/Contents/Home
    11.0.12.1 (x86_64) "Amazon.com Inc." - "Amazon Corretto 11" /Users/ciccio/Library/Java/JavaVirtualMachines/corretto-11.0.12/Contents/Home
    10.0.2 (x86_64) "Oracle Corporation" - "Java SE 10.0.2" /Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home
    1.8.0_302 (x86_64) "Amazon" - "Amazon Corretto 8" /Users/ciccio/Library/Java/JavaVirtualMachines/corretto-1.8.0_302/Contents/Home

[~]$ java -version
openjdk version "17" 2021-09-14
OpenJDK Runtime Environment Homebrew (build 17+0)
OpenJDK 64-Bit Server VM Homebrew (build 17+0, mixed mode, sharing)

[~]$ /usr/libexec/java_home -v 14.0.1 --exec javac -version
javac 14.0.1

[~]$ java -version
openjdk version "14.0.1" 2020-04-14
OpenJDK Runtime Environment (build 14.0.1+7)
OpenJDK 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing)
[~]$

[~]$ /usr/libexec/java_home -V

Matching Java Virtual Machines (4):
    17.0 (x86_64) "Oracle Corporation" - "OpenJDK 17.0" /Users/ciccio/Library/Java/JavaVirtualMachines/openjdk-17.0/Contents/Home
    14.0.1 (x86_64) "Oracle Corporation" - "OpenJDK 14.0.1" /Users/ciccio/Library/Java/JavaVirtualMachines/openjdk-14.0.1/Contents/Home
    11.0.12.1 (x86_64) "Amazon.com Inc." - "Amazon Corretto 11" /Users/ciccio/Library/Java/JavaVirtualMachines/corretto-11.0.12/Contents/Home
    10.0.2 (x86_64) "Oracle Corporation" - "Java SE 10.0.2" /Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home
    1.8.0_302 (x86_64) "Amazon" - "Amazon Corretto 8" /Users/ciccio/Library/Java/JavaVirtualMachines/corretto-1.8.0_302/Contents/Home

[~]$ java -version
openjdk version "17" 2021-09-14
OpenJDK Runtime Environment Homebrew (build 17+0)
OpenJDK 64-Bit Server VM Homebrew (build 17+0, mixed mode, sharing)

[~]$ /usr/libexec/java_home -v 14.0.1 --exec javac -version
javac 14.0.1

[~]$ java -version
openjdk version "14.0.1" 2020-04-14
OpenJDK Runtime Environment (build 14.0.1+7)
OpenJDK 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing)
[~]$

[~]$ /usr/libexec/java_home -V

Matching Java Virtual Machines (4):
    17.0 (x86_64) "Oracle Corporation" - "OpenJDK 17.0" /Users/ciccio/Library/Java/JavaVirtualMachines/openjdk-17.0/Contents/Home
    14.0.1 (x86_64) "Oracle Corporation" - "OpenJDK 14.0.1" /Users/ciccio/Library/Java/JavaVirtualMachines/openjdk-14.0.1/Contents/Home
    11.0.12.1 (x86_64) "Amazon.com Inc." - "Amazon Corretto 11" /Users/ciccio/Library/Java/JavaVirtualMachines/corretto-11.0.12/Contents/Home
    10.0.2 (x86_64) "Oracle Corporation" - "Java SE 10.0.2" /Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home
    1.8.0_302 (x86_64) "Amazon" - "Amazon Corretto 8" /Users/ciccio/Library/Java/JavaVirtualMachines/corretto-1.8.0_302/Contents/Home

[~]$ java -version
openjdk version "17" 2021-09-14
OpenJDK Runtime Environment Homebrew (build 17+0)
OpenJDK 64-Bit Server VM Homebrew (build 17+0, mixed mode, sharing)

[~]$ /usr/libexec/java_home -v 14.0.1 --exec javac -version
javac 14.0.1

[~]$ java -version
openjdk version "14.0.1" 2020-04-14
OpenJDK Runtime Environment (build 14.0.1+7)
OpenJDK 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing)
[~]$

[~]$ /usr/libexec/java_home -V

Matching Java Virtual Machines (4):
    17.0 (x86_64) "Oracle Corporation" - "OpenJDK 17.0" /Users/ciccio/Library/Java/JavaVirtualMachines/openjdk-17.0/Contents/Home
    14.0.1 (x86_64) "Oracle Corporation" - "OpenJDK 14.0.1" /Users/ciccio/Library/Java/JavaVirtualMachines/openjdk-14.0.1/Contents/Home
    11.0.12.1 (x86_64) "Amazon.com Inc." - "Amazon Corretto 11" /Users/ciccio/Library/Java/JavaVirtualMachines/corretto-11.0.12/Contents/Home
    10.0.2 (x86_64) "Oracle Corporation" - "Java SE 10.0.2" /Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home
    1.8.0_302 (x86_64) "Amazon" - "Amazon Corretto 8" /Users/ciccio/Library/Java/JavaVirtualMachines/corretto-1.8.0_302/Contents/Home

[~]$ java -version
openjdk version "17" 2021-09-14
OpenJDK Runtime Environment Homebrew (build 17+0)
OpenJDK 64-Bit Server VM Homebrew (build 17+0, mixed mode, sharing)

[~]$ /usr/libexec/java_home -v 14.0.1 --exec javac -version
javac 14.0.1

[~]$ java -version
openjdk version "14.0.1" 2020-04-14
OpenJDK Runtime Environment (build 14.0.1+7)
OpenJDK 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing)
[~]$

Gradle starts supporting Java17 only from 7.3 release

https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip

./gradlew wrapper

Gradle starts supporting Java17 only from 7.3 release

https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip

./gradlew wrapper

Gradle starts supporting Java17 only from 7.3 release

https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip

./gradlew wrapper

jstack <java pid> > ThredDump.txt

    "reactor-http-epoll-6@15467" daemon prio=5 tid=0xbe nid=NA waiting
  java.lang.Thread.State: WAITING
      at jdk.internal.misc.Unsafe.park(Unsafe.java:-1)
      at java.util.concurrent.locks.LockSupport.park(LockSupport.java:194)
      at java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1796)

public sealed interface Service permits Car, Truck {

    int getMaxServiceIntervalInMonths();

    default int getMaxDistanceBetweenServicesInKilometers() {
    return 100000;
  }
}

public sealed interface MotherInterface permits ChildInterfacePermitted {}

//Has to be declared either as sealed or non-sealed
public non-sealed interface ChildInterfacePermitted extends MotherInterface {}  

public interface AnotherChildInterface extends MotherInterface {} 
//compiler error! It is not included in the permits of mother inteface

 public sealed interface MotherInterface permits ImplementationClass1 {} 

 //Has to be declared either as final or as sealed or as non-sealed
 public final class ImplementationClass1 implements MotherInterface {} 

 public class ImplementationClass2 implements MotherInterface {} 
 //compiler error! It is not included in the permits of mother inteface

public sealed class MotherClass permits ChildClass1 {}

//Has to be declared either as final or as sealed or as non-sealed
public non-sealed class ChildClass1 extends MotherClass {} 

 public class ChildClass2 extends MotherClass {} 
 //compiler error! It is not included in the permits of MotherClass

  -packageA
     -Implementationclass1.java
  -packageB
     -MotherClass.java

   -root
      -MotherClass.java
      -packageA
         -Implementationclass1.java

public sealed interface MotherInterface permits ChildInterfacePermitted {}

//Has to be declared either as sealed or non-sealed
public non-sealed interface ChildInterfacePermitted extends MotherInterface {}  

public interface AnotherChildInterface extends MotherInterface {} 
//compiler error! It is not included in the permits of mother inteface

 public sealed interface MotherInterface permits ImplementationClass1 {} 

 //Has to be declared either as final or as sealed or as non-sealed
 public final class ImplementationClass1 implements MotherInterface {} 

 public class ImplementationClass2 implements MotherInterface {} 
 //compiler error! It is not included in the permits of mother inteface

public sealed class MotherClass permits ChildClass1 {}

//Has to be declared either as final or as sealed or as non-sealed
public non-sealed class ChildClass1 extends MotherClass {} 

 public class ChildClass2 extends MotherClass {} 
 //compiler error! It is not included in the permits of MotherClass

  -packageA
     -Implementationclass1.java
  -packageB
     -MotherClass.java

   -root
      -MotherClass.java
      -packageA
         -Implementationclass1.java

public sealed interface MotherInterface permits ChildInterfacePermitted {}

//Has to be declared either as sealed or non-sealed
public non-sealed interface ChildInterfacePermitted extends MotherInterface {}  

public interface AnotherChildInterface extends MotherInterface {} 
//compiler error! It is not included in the permits of mother inteface

 public sealed interface MotherInterface permits ImplementationClass1 {} 

 //Has to be declared either as final or as sealed or as non-sealed
 public final class ImplementationClass1 implements MotherInterface {} 

 public class ImplementationClass2 implements MotherInterface {} 
 //compiler error! It is not included in the permits of mother inteface

public sealed class MotherClass permits ChildClass1 {}

//Has to be declared either as final or as sealed or as non-sealed
public non-sealed class ChildClass1 extends MotherClass {} 

 public class ChildClass2 extends MotherClass {} 
 //compiler error! It is not included in the permits of MotherClass

  -packageA
     -Implementationclass1.java
  -packageB
     -MotherClass.java

   -root
      -MotherClass.java
      -packageA
         -Implementationclass1.java

public sealed interface MotherInterface permits ChildInterfacePermitted {}

//Has to be declared either as sealed or non-sealed
public non-sealed interface ChildInterfacePermitted extends MotherInterface {}  

public interface AnotherChildInterface extends MotherInterface {} 
//compiler error! It is not included in the permits of mother inteface

 public sealed interface MotherInterface permits ImplementationClass1 {} 

 //Has to be declared either as final or as sealed or as non-sealed
 public final class ImplementationClass1 implements MotherInterface {} 

 public class ImplementationClass2 implements MotherInterface {} 
 //compiler error! It is not included in the permits of mother inteface

public sealed class MotherClass permits ChildClass1 {}

//Has to be declared either as final or as sealed or as non-sealed
public non-sealed class ChildClass1 extends MotherClass {} 

 public class ChildClass2 extends MotherClass {} 
 //compiler error! It is not included in the permits of MotherClass

  -packageA
     -Implementationclass1.java
  -packageB
     -MotherClass.java

   -root
      -MotherClass.java
      -packageA
         -Implementationclass1.java

public sealed interface MotherInterface permits ChildInterfacePermitted {}

//Has to be declared either as sealed or non-sealed
public non-sealed interface ChildInterfacePermitted extends MotherInterface {}  

public interface AnotherChildInterface extends MotherInterface {} 
//compiler error! It is not included in the permits of mother inteface

 public sealed interface MotherInterface permits ImplementationClass1 {} 

 //Has to be declared either as final or as sealed or as non-sealed
 public final class ImplementationClass1 implements MotherInterface {} 

 public class ImplementationClass2 implements MotherInterface {} 
 //compiler error! It is not included in the permits of mother inteface

public sealed class MotherClass permits ChildClass1 {}

//Has to be declared either as final or as sealed or as non-sealed
public non-sealed class ChildClass1 extends MotherClass {} 

 public class ChildClass2 extends MotherClass {} 
 //compiler error! It is not included in the permits of MotherClass

  -packageA
     -Implementationclass1.java
  -packageB
     -MotherClass.java

   -root
      -MotherClass.java
      -packageA
         -Implementationclass1.java

public sealed class Shape
    permits Circle, Square, Rectangle {
}

public final class Circle extends Shape {
    public float radius;
}

public non-sealed class Square extends Shape {
   public double side;
}   

public sealed class Rectangle extends Shape permits FilledRectangle {
    public double length, width;
}

public final class FilledRectangle extends Rectangle {
    public int red, green, blue;
}

package com.example.graphics;

    public sealed class Shape 
        permits com.example.polar.Circle,
                com.example.quad.Rectangle,
                com.example.quad.simple.Square { }

public sealed class Shape
    permits Circle, Square, Rectangle {
}

public final class Circle extends Shape {
    public float radius;
}

public non-sealed class Square extends Shape {
   public double side;
}   

public sealed class Rectangle extends Shape permits FilledRectangle {
    public double length, width;
}

public final class FilledRectangle extends Rectangle {
    public int red, green, blue;
}

package com.example.graphics;

    public sealed class Shape 
        permits com.example.polar.Circle,
                com.example.quad.Rectangle,
                com.example.quad.simple.Square { }

public sealed class Shape
    permits Circle, Square, Rectangle {
}

public final class Circle extends Shape {
    public float radius;
}

public non-sealed class Square extends Shape {
   public double side;
}   

public sealed class Rectangle extends Shape permits FilledRectangle {
    public double length, width;
}

public final class FilledRectangle extends Rectangle {
    public int red, green, blue;
}

package com.example.graphics;

    public sealed class Shape 
        permits com.example.polar.Circle,
                com.example.quad.Rectangle,
                com.example.quad.simple.Square { }

public sealed class Shape
    permits Circle, Square, Rectangle {
}

public final class Circle extends Shape {
    public float radius;
}

public non-sealed class Square extends Shape {
   public double side;
}   

public sealed class Rectangle extends Shape permits FilledRectangle {
    public double length, width;
}

public final class FilledRectangle extends Rectangle {
    public int red, green, blue;
}

package com.example.graphics;

    public sealed class Shape 
        permits com.example.polar.Circle,
                com.example.quad.Rectangle,
                com.example.quad.simple.Square { }

class NumberSystem { ... }
final class Binary extends NumberSystem { ... }
final class Decimal extends NumberSystem { ... }
final class Octal extends NumberSystem { ... }
final class HexaDecimal extends NumberSystem { ... }

public sealed class Parent permits Child1, Child2 {
  void parentMethod() {
    System.out.println("from a sealed parent class ");
  }
}

public final class Child1 extends Parent {
  public static void main(String[] args) {
    Child1 obj = new Child1();
    obj.parentMethod();
  }
}

public final class Child2 extends Parent {
  public static void main(String[] args) {
    Child2 obj = new Child2();
    obj.parentMethod();
  }
}

public final class Child3 extends Parent {
  public static void main(String[] args) {
    Child3 obj = new Child3();
    obj.parentMethod();
  }
}

public sealed class Parent permits Child1, Child2 {
  void parentMethod() {
    System.out.println("from a sealed parent class ");
  }
}

public final class Child1 extends Parent {
  public static void main(String[] args) {
    Child1 obj = new Child1();
    obj.parentMethod();
  }
}

public final class Child2 extends Parent {
  public static void main(String[] args) {
    Child2 obj = new Child2();
    obj.parentMethod();
  }
}

public final class Child3 extends Parent {
  public static void main(String[] args) {
    Child3 obj = new Child3();
    obj.parentMethod();
  }
}

public sealed class Parent permits Child1, Child2 {
  void parentMethod() {
    System.out.println("from a sealed parent class ");
  }
}

public final class Child1 extends Parent {
  public static void main(String[] args) {
    Child1 obj = new Child1();
    obj.parentMethod();
  }
}

public final class Child2 extends Parent {
  public static void main(String[] args) {
    Child2 obj = new Child2();
    obj.parentMethod();
  }
}

public final class Child3 extends Parent {
  public static void main(String[] args) {
    Child3 obj = new Child3();
    obj.parentMethod();
  }
}

public sealed class Parent permits Child1, Child2 {
  void parentMethod() {
    System.out.println("from a sealed parent class ");
  }
}

public final class Child1 extends Parent {
  public static void main(String[] args) {
    Child1 obj = new Child1();
    obj.parentMethod();
  }
}

public final class Child2 extends Parent {
  public static void main(String[] args) {
    Child2 obj = new Child2();
    obj.parentMethod();
  }
}

public final class Child3 extends Parent {
  public static void main(String[] args) {
    Child3 obj = new Child3();
    obj.parentMethod();
  }
}

@State(Scope.Thread)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class StringConstructorBenchmark {
  private byte[] array;

  @Setup
  public void setup() {
    String str = "Quizdeltagerne spiste jordbær med fløde, mens cirkusklovnen. Я";
    array = str.getBytes(StandardCharsets.UTF_8);
  }

  @Benchmark
  public String newString()  {
      return new String(array, 0, array.length, StandardCharsets.UTF_8);
  }
}

//baseline
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  173,092 ± 3,048  ns/op

//patched
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  126,908 ± 2,355  ns/op

while (offset < sl) {
    int b1 = bytes[offset];
    if (b1 >= 0) {
        dst[dp++] = (byte)b1;
        offset++;                     // <---
        continue;
    }
    if ((b1 == (byte)0xc2 || b1 == (byte)0xc3) &&
            offset + 1 < sl) {
        int b2 = bytes[offset + 1];
        if (!isNotContinuation(b2)) {
            dst[dp++] = (byte)decode2(b1, b2);
            offset += 2;
            continue;
        }
    }
    // anything not a latin1, including the repl
    // we have to go with the utf16
    break;
}

  3.62%           ││            │  0x00007fed70eb4c1c:   mov    %ebx,%ecx
  2.29%           ││            │  0x00007fed70eb4c1e:   mov    %edx,%r9d
  2.22%           ││            │  0x00007fed70eb4c21:   mov    (%rsp),%r8                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││            │                                                            ; - java.lang.String::<init>@107 (line 537)
  2.32%           ↘│            │  0x00007fed70eb4c25:   cmp    %r13d,%ecx
                   │            │  0x00007fed70eb4c28:   jge    0x00007fed70eb5388           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@110 (line 537)
  3.05%            │            │  0x00007fed70eb4c2e:   cmp    0x8(%rsp),%ecx
                   │            │  0x00007fed70eb4c32:   jae    0x00007fed70eb5319
  2.38%            │            │  0x00007fed70eb4c38:   mov    %r8,(%rsp)
  2.64%            │            │  0x00007fed70eb4c3c:   movslq %ecx,%r8
  2.46%            │            │  0x00007fed70eb4c3f:   mov    %rax,%rbx
  3.44%            │            │  0x00007fed70eb4c42:   sub    %r8,%rbx
  2.62%            │            │  0x00007fed70eb4c45:   add    $0x1,%rbx
  2.64%            │            │  0x00007fed70eb4c49:   and    $0xfffffffffffffffe,%rbx
  2.30%            │            │  0x00007fed70eb4c4d:   mov    %ebx,%r8d
  3.08%            │            │  0x00007fed70eb4c50:   add    %ecx,%r8d
  2.55%            │            │  0x00007fed70eb4c53:   movslq %r8d,%r8
  2.45%            │            │  0x00007fed70eb4c56:   add    $0xfffffffffffffffe,%r8
  2.13%            │            │  0x00007fed70eb4c5a:   cmp    (%rsp),%r8
                   │            │  0x00007fed70eb4c5e:   jae    0x00007fed70eb5319
  3.36%            │            │  0x00007fed70eb4c64:   mov    %ecx,%edi                    ;*aload_1 {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@113 (line 538)
  2.86%            │           ↗│  0x00007fed70eb4c66:   movsbl 0x10(%r14,%rdi,1),%r8d       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@115 (line 538)
  2.48%            │           ││  0x00007fed70eb4c6c:   mov    %r9d,%edx
  2.26%            │           ││  0x00007fed70eb4c6f:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@127 (line 540)
  3.28%            │           ││  0x00007fed70eb4c71:   mov    %edi,%ebx
  2.44%            │           ││  0x00007fed70eb4c73:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@134 (line 541)
  2.35%            │           ││  0x00007fed70eb4c75:   test   %r8d,%r8d
                   ╰           ││  0x00007fed70eb4c78:   jge    0x00007fed70eb4c04           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                               ││                                                            ; - java.lang.String::<init>@120 (line 539)

 17.28%           ││  0x00007f6b88eb6061:   mov    %edx,%r10d                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││                                                            ; - java.lang.String::<init>@107 (line 537)
  0.11%           ↘│  0x00007f6b88eb6064:   test   %r10d,%r10d
                   │  0x00007f6b88eb6067:   jl     0x00007f6b88eb669c           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@108 (line 537)
  0.39%            │  0x00007f6b88eb606d:   cmp    %r13d,%r10d
                   │  0x00007f6b88eb6070:   jge    0x00007f6b88eb66d0           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@114 (line 537)
  0.66%            │  0x00007f6b88eb6076:   mov    %ebx,%r9d
 13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
  0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671
  0.14%            │  0x00007f6b88eb6084:   movsbl 0x10(%r14,%r10,1),%edi       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@119 (line 538)
  0.37%            │  0x00007f6b88eb608a:   mov    %r9d,%ebx
  0.99%            │  0x00007f6b88eb608d:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@131 (line 540)
 12.88%            │  0x00007f6b88eb608f:   movslq %r9d,%rsi                    ;*bastore {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@196 (line 548)
  0.17%            │  0x00007f6b88eb6092:   mov    %r10d,%edx
  0.39%            │  0x00007f6b88eb6095:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@138 (line 541)
  0.96%            │  0x00007f6b88eb6097:   test   %edi,%edi
  0.02%            │  0x00007f6b88eb6099:   jl     0x00007f6b88eb60dc           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@124 (line 539)

13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
 0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671

@State(Scope.Thread)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class StringConstructorBenchmark {
  private byte[] array;

  @Setup
  public void setup() {
    String str = "Quizdeltagerne spiste jordbær med fløde, mens cirkusklovnen. Я";
    array = str.getBytes(StandardCharsets.UTF_8);
  }

  @Benchmark
  public String newString()  {
      return new String(array, 0, array.length, StandardCharsets.UTF_8);
  }
}

//baseline
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  173,092 ± 3,048  ns/op

//patched
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  126,908 ± 2,355  ns/op

while (offset < sl) {
    int b1 = bytes[offset];
    if (b1 >= 0) {
        dst[dp++] = (byte)b1;
        offset++;                     // <---
        continue;
    }
    if ((b1 == (byte)0xc2 || b1 == (byte)0xc3) &&
            offset + 1 < sl) {
        int b2 = bytes[offset + 1];
        if (!isNotContinuation(b2)) {
            dst[dp++] = (byte)decode2(b1, b2);
            offset += 2;
            continue;
        }
    }
    // anything not a latin1, including the repl
    // we have to go with the utf16
    break;
}

  3.62%           ││            │  0x00007fed70eb4c1c:   mov    %ebx,%ecx
  2.29%           ││            │  0x00007fed70eb4c1e:   mov    %edx,%r9d
  2.22%           ││            │  0x00007fed70eb4c21:   mov    (%rsp),%r8                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││            │                                                            ; - java.lang.String::<init>@107 (line 537)
  2.32%           ↘│            │  0x00007fed70eb4c25:   cmp    %r13d,%ecx
                   │            │  0x00007fed70eb4c28:   jge    0x00007fed70eb5388           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@110 (line 537)
  3.05%            │            │  0x00007fed70eb4c2e:   cmp    0x8(%rsp),%ecx
                   │            │  0x00007fed70eb4c32:   jae    0x00007fed70eb5319
  2.38%            │            │  0x00007fed70eb4c38:   mov    %r8,(%rsp)
  2.64%            │            │  0x00007fed70eb4c3c:   movslq %ecx,%r8
  2.46%            │            │  0x00007fed70eb4c3f:   mov    %rax,%rbx
  3.44%            │            │  0x00007fed70eb4c42:   sub    %r8,%rbx
  2.62%            │            │  0x00007fed70eb4c45:   add    $0x1,%rbx
  2.64%            │            │  0x00007fed70eb4c49:   and    $0xfffffffffffffffe,%rbx
  2.30%            │            │  0x00007fed70eb4c4d:   mov    %ebx,%r8d
  3.08%            │            │  0x00007fed70eb4c50:   add    %ecx,%r8d
  2.55%            │            │  0x00007fed70eb4c53:   movslq %r8d,%r8
  2.45%            │            │  0x00007fed70eb4c56:   add    $0xfffffffffffffffe,%r8
  2.13%            │            │  0x00007fed70eb4c5a:   cmp    (%rsp),%r8
                   │            │  0x00007fed70eb4c5e:   jae    0x00007fed70eb5319
  3.36%            │            │  0x00007fed70eb4c64:   mov    %ecx,%edi                    ;*aload_1 {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@113 (line 538)
  2.86%            │           ↗│  0x00007fed70eb4c66:   movsbl 0x10(%r14,%rdi,1),%r8d       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@115 (line 538)
  2.48%            │           ││  0x00007fed70eb4c6c:   mov    %r9d,%edx
  2.26%            │           ││  0x00007fed70eb4c6f:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@127 (line 540)
  3.28%            │           ││  0x00007fed70eb4c71:   mov    %edi,%ebx
  2.44%            │           ││  0x00007fed70eb4c73:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@134 (line 541)
  2.35%            │           ││  0x00007fed70eb4c75:   test   %r8d,%r8d
                   ╰           ││  0x00007fed70eb4c78:   jge    0x00007fed70eb4c04           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                               ││                                                            ; - java.lang.String::<init>@120 (line 539)

 17.28%           ││  0x00007f6b88eb6061:   mov    %edx,%r10d                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││                                                            ; - java.lang.String::<init>@107 (line 537)
  0.11%           ↘│  0x00007f6b88eb6064:   test   %r10d,%r10d
                   │  0x00007f6b88eb6067:   jl     0x00007f6b88eb669c           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@108 (line 537)
  0.39%            │  0x00007f6b88eb606d:   cmp    %r13d,%r10d
                   │  0x00007f6b88eb6070:   jge    0x00007f6b88eb66d0           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@114 (line 537)
  0.66%            │  0x00007f6b88eb6076:   mov    %ebx,%r9d
 13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
  0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671
  0.14%            │  0x00007f6b88eb6084:   movsbl 0x10(%r14,%r10,1),%edi       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@119 (line 538)
  0.37%            │  0x00007f6b88eb608a:   mov    %r9d,%ebx
  0.99%            │  0x00007f6b88eb608d:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@131 (line 540)
 12.88%            │  0x00007f6b88eb608f:   movslq %r9d,%rsi                    ;*bastore {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@196 (line 548)
  0.17%            │  0x00007f6b88eb6092:   mov    %r10d,%edx
  0.39%            │  0x00007f6b88eb6095:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@138 (line 541)
  0.96%            │  0x00007f6b88eb6097:   test   %edi,%edi
  0.02%            │  0x00007f6b88eb6099:   jl     0x00007f6b88eb60dc           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@124 (line 539)

13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
 0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671

@State(Scope.Thread)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class StringConstructorBenchmark {
  private byte[] array;

  @Setup
  public void setup() {
    String str = "Quizdeltagerne spiste jordbær med fløde, mens cirkusklovnen. Я";
    array = str.getBytes(StandardCharsets.UTF_8);
  }

  @Benchmark
  public String newString()  {
      return new String(array, 0, array.length, StandardCharsets.UTF_8);
  }
}

//baseline
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  173,092 ± 3,048  ns/op

//patched
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  126,908 ± 2,355  ns/op

while (offset < sl) {
    int b1 = bytes[offset];
    if (b1 >= 0) {
        dst[dp++] = (byte)b1;
        offset++;                     // <---
        continue;
    }
    if ((b1 == (byte)0xc2 || b1 == (byte)0xc3) &&
            offset + 1 < sl) {
        int b2 = bytes[offset + 1];
        if (!isNotContinuation(b2)) {
            dst[dp++] = (byte)decode2(b1, b2);
            offset += 2;
            continue;
        }
    }
    // anything not a latin1, including the repl
    // we have to go with the utf16
    break;
}

  3.62%           ││            │  0x00007fed70eb4c1c:   mov    %ebx,%ecx
  2.29%           ││            │  0x00007fed70eb4c1e:   mov    %edx,%r9d
  2.22%           ││            │  0x00007fed70eb4c21:   mov    (%rsp),%r8                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││            │                                                            ; - java.lang.String::<init>@107 (line 537)
  2.32%           ↘│            │  0x00007fed70eb4c25:   cmp    %r13d,%ecx
                   │            │  0x00007fed70eb4c28:   jge    0x00007fed70eb5388           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@110 (line 537)
  3.05%            │            │  0x00007fed70eb4c2e:   cmp    0x8(%rsp),%ecx
                   │            │  0x00007fed70eb4c32:   jae    0x00007fed70eb5319
  2.38%            │            │  0x00007fed70eb4c38:   mov    %r8,(%rsp)
  2.64%            │            │  0x00007fed70eb4c3c:   movslq %ecx,%r8
  2.46%            │            │  0x00007fed70eb4c3f:   mov    %rax,%rbx
  3.44%            │            │  0x00007fed70eb4c42:   sub    %r8,%rbx
  2.62%            │            │  0x00007fed70eb4c45:   add    $0x1,%rbx
  2.64%            │            │  0x00007fed70eb4c49:   and    $0xfffffffffffffffe,%rbx
  2.30%            │            │  0x00007fed70eb4c4d:   mov    %ebx,%r8d
  3.08%            │            │  0x00007fed70eb4c50:   add    %ecx,%r8d
  2.55%            │            │  0x00007fed70eb4c53:   movslq %r8d,%r8
  2.45%            │            │  0x00007fed70eb4c56:   add    $0xfffffffffffffffe,%r8
  2.13%            │            │  0x00007fed70eb4c5a:   cmp    (%rsp),%r8
                   │            │  0x00007fed70eb4c5e:   jae    0x00007fed70eb5319
  3.36%            │            │  0x00007fed70eb4c64:   mov    %ecx,%edi                    ;*aload_1 {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@113 (line 538)
  2.86%            │           ↗│  0x00007fed70eb4c66:   movsbl 0x10(%r14,%rdi,1),%r8d       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@115 (line 538)
  2.48%            │           ││  0x00007fed70eb4c6c:   mov    %r9d,%edx
  2.26%            │           ││  0x00007fed70eb4c6f:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@127 (line 540)
  3.28%            │           ││  0x00007fed70eb4c71:   mov    %edi,%ebx
  2.44%            │           ││  0x00007fed70eb4c73:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@134 (line 541)
  2.35%            │           ││  0x00007fed70eb4c75:   test   %r8d,%r8d
                   ╰           ││  0x00007fed70eb4c78:   jge    0x00007fed70eb4c04           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                               ││                                                            ; - java.lang.String::<init>@120 (line 539)

 17.28%           ││  0x00007f6b88eb6061:   mov    %edx,%r10d                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││                                                            ; - java.lang.String::<init>@107 (line 537)
  0.11%           ↘│  0x00007f6b88eb6064:   test   %r10d,%r10d
                   │  0x00007f6b88eb6067:   jl     0x00007f6b88eb669c           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@108 (line 537)
  0.39%            │  0x00007f6b88eb606d:   cmp    %r13d,%r10d
                   │  0x00007f6b88eb6070:   jge    0x00007f6b88eb66d0           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@114 (line 537)
  0.66%            │  0x00007f6b88eb6076:   mov    %ebx,%r9d
 13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
  0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671
  0.14%            │  0x00007f6b88eb6084:   movsbl 0x10(%r14,%r10,1),%edi       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@119 (line 538)
  0.37%            │  0x00007f6b88eb608a:   mov    %r9d,%ebx
  0.99%            │  0x00007f6b88eb608d:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@131 (line 540)
 12.88%            │  0x00007f6b88eb608f:   movslq %r9d,%rsi                    ;*bastore {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@196 (line 548)
  0.17%            │  0x00007f6b88eb6092:   mov    %r10d,%edx
  0.39%            │  0x00007f6b88eb6095:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@138 (line 541)
  0.96%            │  0x00007f6b88eb6097:   test   %edi,%edi
  0.02%            │  0x00007f6b88eb6099:   jl     0x00007f6b88eb60dc           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@124 (line 539)

13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
 0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671

@State(Scope.Thread)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class StringConstructorBenchmark {
  private byte[] array;

  @Setup
  public void setup() {
    String str = "Quizdeltagerne spiste jordbær med fløde, mens cirkusklovnen. Я";
    array = str.getBytes(StandardCharsets.UTF_8);
  }

  @Benchmark
  public String newString()  {
      return new String(array, 0, array.length, StandardCharsets.UTF_8);
  }
}

//baseline
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  173,092 ± 3,048  ns/op

//patched
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  126,908 ± 2,355  ns/op

while (offset < sl) {
    int b1 = bytes[offset];
    if (b1 >= 0) {
        dst[dp++] = (byte)b1;
        offset++;                     // <---
        continue;
    }
    if ((b1 == (byte)0xc2 || b1 == (byte)0xc3) &&
            offset + 1 < sl) {
        int b2 = bytes[offset + 1];
        if (!isNotContinuation(b2)) {
            dst[dp++] = (byte)decode2(b1, b2);
            offset += 2;
            continue;
        }
    }
    // anything not a latin1, including the repl
    // we have to go with the utf16
    break;
}

  3.62%           ││            │  0x00007fed70eb4c1c:   mov    %ebx,%ecx
  2.29%           ││            │  0x00007fed70eb4c1e:   mov    %edx,%r9d
  2.22%           ││            │  0x00007fed70eb4c21:   mov    (%rsp),%r8                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││            │                                                            ; - java.lang.String::<init>@107 (line 537)
  2.32%           ↘│            │  0x00007fed70eb4c25:   cmp    %r13d,%ecx
                   │            │  0x00007fed70eb4c28:   jge    0x00007fed70eb5388           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@110 (line 537)
  3.05%            │            │  0x00007fed70eb4c2e:   cmp    0x8(%rsp),%ecx
                   │            │  0x00007fed70eb4c32:   jae    0x00007fed70eb5319
  2.38%            │            │  0x00007fed70eb4c38:   mov    %r8,(%rsp)
  2.64%            │            │  0x00007fed70eb4c3c:   movslq %ecx,%r8
  2.46%            │            │  0x00007fed70eb4c3f:   mov    %rax,%rbx
  3.44%            │            │  0x00007fed70eb4c42:   sub    %r8,%rbx
  2.62%            │            │  0x00007fed70eb4c45:   add    $0x1,%rbx
  2.64%            │            │  0x00007fed70eb4c49:   and    $0xfffffffffffffffe,%rbx
  2.30%            │            │  0x00007fed70eb4c4d:   mov    %ebx,%r8d
  3.08%            │            │  0x00007fed70eb4c50:   add    %ecx,%r8d
  2.55%            │            │  0x00007fed70eb4c53:   movslq %r8d,%r8
  2.45%            │            │  0x00007fed70eb4c56:   add    $0xfffffffffffffffe,%r8
  2.13%            │            │  0x00007fed70eb4c5a:   cmp    (%rsp),%r8
                   │            │  0x00007fed70eb4c5e:   jae    0x00007fed70eb5319
  3.36%            │            │  0x00007fed70eb4c64:   mov    %ecx,%edi                    ;*aload_1 {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@113 (line 538)
  2.86%            │           ↗│  0x00007fed70eb4c66:   movsbl 0x10(%r14,%rdi,1),%r8d       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@115 (line 538)
  2.48%            │           ││  0x00007fed70eb4c6c:   mov    %r9d,%edx
  2.26%            │           ││  0x00007fed70eb4c6f:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@127 (line 540)
  3.28%            │           ││  0x00007fed70eb4c71:   mov    %edi,%ebx
  2.44%            │           ││  0x00007fed70eb4c73:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@134 (line 541)
  2.35%            │           ││  0x00007fed70eb4c75:   test   %r8d,%r8d
                   ╰           ││  0x00007fed70eb4c78:   jge    0x00007fed70eb4c04           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                               ││                                                            ; - java.lang.String::<init>@120 (line 539)

 17.28%           ││  0x00007f6b88eb6061:   mov    %edx,%r10d                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││                                                            ; - java.lang.String::<init>@107 (line 537)
  0.11%           ↘│  0x00007f6b88eb6064:   test   %r10d,%r10d
                   │  0x00007f6b88eb6067:   jl     0x00007f6b88eb669c           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@108 (line 537)
  0.39%            │  0x00007f6b88eb606d:   cmp    %r13d,%r10d
                   │  0x00007f6b88eb6070:   jge    0x00007f6b88eb66d0           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@114 (line 537)
  0.66%            │  0x00007f6b88eb6076:   mov    %ebx,%r9d
 13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
  0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671
  0.14%            │  0x00007f6b88eb6084:   movsbl 0x10(%r14,%r10,1),%edi       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@119 (line 538)
  0.37%            │  0x00007f6b88eb608a:   mov    %r9d,%ebx
  0.99%            │  0x00007f6b88eb608d:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@131 (line 540)
 12.88%            │  0x00007f6b88eb608f:   movslq %r9d,%rsi                    ;*bastore {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@196 (line 548)
  0.17%            │  0x00007f6b88eb6092:   mov    %r10d,%edx
  0.39%            │  0x00007f6b88eb6095:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@138 (line 541)
  0.96%            │  0x00007f6b88eb6097:   test   %edi,%edi
  0.02%            │  0x00007f6b88eb6099:   jl     0x00007f6b88eb60dc           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@124 (line 539)

13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
 0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671

@State(Scope.Thread)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class StringConstructorBenchmark {
  private byte[] array;

  @Setup
  public void setup() {
    String str = "Quizdeltagerne spiste jordbær med fløde, mens cirkusklovnen. Я";
    array = str.getBytes(StandardCharsets.UTF_8);
  }

  @Benchmark
  public String newString()  {
      return new String(array, 0, array.length, StandardCharsets.UTF_8);
  }
}

//baseline
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  173,092 ± 3,048  ns/op

//patched
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  126,908 ± 2,355  ns/op

while (offset < sl) {
    int b1 = bytes[offset];
    if (b1 >= 0) {
        dst[dp++] = (byte)b1;
        offset++;                     // <---
        continue;
    }
    if ((b1 == (byte)0xc2 || b1 == (byte)0xc3) &&
            offset + 1 < sl) {
        int b2 = bytes[offset + 1];
        if (!isNotContinuation(b2)) {
            dst[dp++] = (byte)decode2(b1, b2);
            offset += 2;
            continue;
        }
    }
    // anything not a latin1, including the repl
    // we have to go with the utf16
    break;
}

  3.62%           ││            │  0x00007fed70eb4c1c:   mov    %ebx,%ecx
  2.29%           ││            │  0x00007fed70eb4c1e:   mov    %edx,%r9d
  2.22%           ││            │  0x00007fed70eb4c21:   mov    (%rsp),%r8                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││            │                                                            ; - java.lang.String::<init>@107 (line 537)
  2.32%           ↘│            │  0x00007fed70eb4c25:   cmp    %r13d,%ecx
                   │            │  0x00007fed70eb4c28:   jge    0x00007fed70eb5388           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@110 (line 537)
  3.05%            │            │  0x00007fed70eb4c2e:   cmp    0x8(%rsp),%ecx
                   │            │  0x00007fed70eb4c32:   jae    0x00007fed70eb5319
  2.38%            │            │  0x00007fed70eb4c38:   mov    %r8,(%rsp)
  2.64%            │            │  0x00007fed70eb4c3c:   movslq %ecx,%r8
  2.46%            │            │  0x00007fed70eb4c3f:   mov    %rax,%rbx
  3.44%            │            │  0x00007fed70eb4c42:   sub    %r8,%rbx
  2.62%            │            │  0x00007fed70eb4c45:   add    $0x1,%rbx
  2.64%            │            │  0x00007fed70eb4c49:   and    $0xfffffffffffffffe,%rbx
  2.30%            │            │  0x00007fed70eb4c4d:   mov    %ebx,%r8d
  3.08%            │            │  0x00007fed70eb4c50:   add    %ecx,%r8d
  2.55%            │            │  0x00007fed70eb4c53:   movslq %r8d,%r8
  2.45%            │            │  0x00007fed70eb4c56:   add    $0xfffffffffffffffe,%r8
  2.13%            │            │  0x00007fed70eb4c5a:   cmp    (%rsp),%r8
                   │            │  0x00007fed70eb4c5e:   jae    0x00007fed70eb5319
  3.36%            │            │  0x00007fed70eb4c64:   mov    %ecx,%edi                    ;*aload_1 {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@113 (line 538)
  2.86%            │           ↗│  0x00007fed70eb4c66:   movsbl 0x10(%r14,%rdi,1),%r8d       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@115 (line 538)
  2.48%            │           ││  0x00007fed70eb4c6c:   mov    %r9d,%edx
  2.26%            │           ││  0x00007fed70eb4c6f:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@127 (line 540)
  3.28%            │           ││  0x00007fed70eb4c71:   mov    %edi,%ebx
  2.44%            │           ││  0x00007fed70eb4c73:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@134 (line 541)
  2.35%            │           ││  0x00007fed70eb4c75:   test   %r8d,%r8d
                   ╰           ││  0x00007fed70eb4c78:   jge    0x00007fed70eb4c04           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                               ││                                                            ; - java.lang.String::<init>@120 (line 539)

 17.28%           ││  0x00007f6b88eb6061:   mov    %edx,%r10d                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││                                                            ; - java.lang.String::<init>@107 (line 537)
  0.11%           ↘│  0x00007f6b88eb6064:   test   %r10d,%r10d
                   │  0x00007f6b88eb6067:   jl     0x00007f6b88eb669c           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@108 (line 537)
  0.39%            │  0x00007f6b88eb606d:   cmp    %r13d,%r10d
                   │  0x00007f6b88eb6070:   jge    0x00007f6b88eb66d0           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@114 (line 537)
  0.66%            │  0x00007f6b88eb6076:   mov    %ebx,%r9d
 13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
  0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671
  0.14%            │  0x00007f6b88eb6084:   movsbl 0x10(%r14,%r10,1),%edi       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@119 (line 538)
  0.37%            │  0x00007f6b88eb608a:   mov    %r9d,%ebx
  0.99%            │  0x00007f6b88eb608d:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@131 (line 540)
 12.88%            │  0x00007f6b88eb608f:   movslq %r9d,%rsi                    ;*bastore {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@196 (line 548)
  0.17%            │  0x00007f6b88eb6092:   mov    %r10d,%edx
  0.39%            │  0x00007f6b88eb6095:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@138 (line 541)
  0.96%            │  0x00007f6b88eb6097:   test   %edi,%edi
  0.02%            │  0x00007f6b88eb6099:   jl     0x00007f6b88eb60dc           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@124 (line 539)

13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
 0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671

@State(Scope.Thread)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class StringConstructorBenchmark {
  private byte[] array;

  @Setup
  public void setup() {
    String str = "Quizdeltagerne spiste jordbær med fløde, mens cirkusklovnen. Я";
    array = str.getBytes(StandardCharsets.UTF_8);
  }

  @Benchmark
  public String newString()  {
      return new String(array, 0, array.length, StandardCharsets.UTF_8);
  }
}

//baseline
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  173,092 ± 3,048  ns/op

//patched
Benchmark                             Mode  Cnt    Score   Error  Units
StringConstructorBenchmark.newString  avgt   50  126,908 ± 2,355  ns/op

while (offset < sl) {
    int b1 = bytes[offset];
    if (b1 >= 0) {
        dst[dp++] = (byte)b1;
        offset++;                     // <---
        continue;
    }
    if ((b1 == (byte)0xc2 || b1 == (byte)0xc3) &&
            offset + 1 < sl) {
        int b2 = bytes[offset + 1];
        if (!isNotContinuation(b2)) {
            dst[dp++] = (byte)decode2(b1, b2);
            offset += 2;
            continue;
        }
    }
    // anything not a latin1, including the repl
    // we have to go with the utf16
    break;
}

  3.62%           ││            │  0x00007fed70eb4c1c:   mov    %ebx,%ecx
  2.29%           ││            │  0x00007fed70eb4c1e:   mov    %edx,%r9d
  2.22%           ││            │  0x00007fed70eb4c21:   mov    (%rsp),%r8                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││            │                                                            ; - java.lang.String::<init>@107 (line 537)
  2.32%           ↘│            │  0x00007fed70eb4c25:   cmp    %r13d,%ecx
                   │            │  0x00007fed70eb4c28:   jge    0x00007fed70eb5388           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@110 (line 537)
  3.05%            │            │  0x00007fed70eb4c2e:   cmp    0x8(%rsp),%ecx
                   │            │  0x00007fed70eb4c32:   jae    0x00007fed70eb5319
  2.38%            │            │  0x00007fed70eb4c38:   mov    %r8,(%rsp)
  2.64%            │            │  0x00007fed70eb4c3c:   movslq %ecx,%r8
  2.46%            │            │  0x00007fed70eb4c3f:   mov    %rax,%rbx
  3.44%            │            │  0x00007fed70eb4c42:   sub    %r8,%rbx
  2.62%            │            │  0x00007fed70eb4c45:   add    $0x1,%rbx
  2.64%            │            │  0x00007fed70eb4c49:   and    $0xfffffffffffffffe,%rbx
  2.30%            │            │  0x00007fed70eb4c4d:   mov    %ebx,%r8d
  3.08%            │            │  0x00007fed70eb4c50:   add    %ecx,%r8d
  2.55%            │            │  0x00007fed70eb4c53:   movslq %r8d,%r8
  2.45%            │            │  0x00007fed70eb4c56:   add    $0xfffffffffffffffe,%r8
  2.13%            │            │  0x00007fed70eb4c5a:   cmp    (%rsp),%r8
                   │            │  0x00007fed70eb4c5e:   jae    0x00007fed70eb5319
  3.36%            │            │  0x00007fed70eb4c64:   mov    %ecx,%edi                    ;*aload_1 {reexecute=0 rethrow=0 return_oop=0}
                   │            │                                                            ; - java.lang.String::<init>@113 (line 538)
  2.86%            │           ↗│  0x00007fed70eb4c66:   movsbl 0x10(%r14,%rdi,1),%r8d       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@115 (line 538)
  2.48%            │           ││  0x00007fed70eb4c6c:   mov    %r9d,%edx
  2.26%            │           ││  0x00007fed70eb4c6f:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@127 (line 540)
  3.28%            │           ││  0x00007fed70eb4c71:   mov    %edi,%ebx
  2.44%            │           ││  0x00007fed70eb4c73:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │           ││                                                            ; - java.lang.String::<init>@134 (line 541)
  2.35%            │           ││  0x00007fed70eb4c75:   test   %r8d,%r8d
                   ╰           ││  0x00007fed70eb4c78:   jge    0x00007fed70eb4c04           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                               ││                                                            ; - java.lang.String::<init>@120 (line 539)

 17.28%           ││  0x00007f6b88eb6061:   mov    %edx,%r10d                   ;*iload_2 {reexecute=0 rethrow=0 return_oop=0}
                  ││                                                            ; - java.lang.String::<init>@107 (line 537)
  0.11%           ↘│  0x00007f6b88eb6064:   test   %r10d,%r10d
                   │  0x00007f6b88eb6067:   jl     0x00007f6b88eb669c           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@108 (line 537)
  0.39%            │  0x00007f6b88eb606d:   cmp    %r13d,%r10d
                   │  0x00007f6b88eb6070:   jge    0x00007f6b88eb66d0           ;*if_icmpge {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@114 (line 537)
  0.66%            │  0x00007f6b88eb6076:   mov    %ebx,%r9d
 13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
  0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671
  0.14%            │  0x00007f6b88eb6084:   movsbl 0x10(%r14,%r10,1),%edi       ;*baload {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@119 (line 538)
  0.37%            │  0x00007f6b88eb608a:   mov    %r9d,%ebx
  0.99%            │  0x00007f6b88eb608d:   inc    %ebx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@131 (line 540)
 12.88%            │  0x00007f6b88eb608f:   movslq %r9d,%rsi                    ;*bastore {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@196 (line 548)
  0.17%            │  0x00007f6b88eb6092:   mov    %r10d,%edx
  0.39%            │  0x00007f6b88eb6095:   inc    %edx                         ;*iinc {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@138 (line 541)
  0.96%            │  0x00007f6b88eb6097:   test   %edi,%edi
  0.02%            │  0x00007f6b88eb6099:   jl     0x00007f6b88eb60dc           ;*iflt {reexecute=0 rethrow=0 return_oop=0}
                   │                                                            ; - java.lang.String::<init>@124 (line 539)

13.70%            │  0x00007f6b88eb6079:   cmp    0x8(%rsp),%r10d
 0.01%            │  0x00007f6b88eb607e:   jae    0x00007f6b88eb6671

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assumptions.assumeTrue;

import org.junit.jupiter.api.Test;

class RecordHelperTest
{

    @Test
    void isNotARecord()
    {
        assertFalse( RecordHelper.isRecord(Object.class));
    }

    @Test
    void isARecord() throws Exception
    {
        assumeTrue( Integer.parseInt( System.getProperty( "java.specification.version" ) ) >= 16 );
        
        Class c = Class.forName( "jdk.net.UnixDomainPrincipal" );
        assertTrue( RecordHelper.isRecord(c));
    }

}

        <profile>
            <id>modules-jdk8</id>
            <activation>
                <jdk>[1.8,11)</jdk>
            </activation>
            <modules>
                <module>core</module>
            </modules>
        </profile>

        <profile>
            <id>modules-jdk16</id>
            <activation>
                <jdk>[16,17)</jdk>
            </activation>
            <modules>
                <module>core</module>
                <module>m16</module>
            </modules>
        </profile>

        <profile>
            <id>modules-jdk17</id>
            <activation>
                <jdk>[17,)</jdk>
            </activation>
            <modules>
                <module>core</module>
                <module>m16</module>
                <module>m17</module>
                <module>release</module>
            </modules>
        </profile>