OpenJDK | Git mirror of OpenJDK

 by   md-5 Java Version: Current License: Non-SPDX

kandi X-RAY | OpenJDK Summary

kandi X-RAY | OpenJDK Summary

OpenJDK is a Java library. OpenJDK has no bugs and it has low support. However OpenJDK has 1 vulnerabilities, it build file is not available and it has a Non-SPDX License. You can download it from GitHub.

For information about building the JDK, including how to retrieve all of the source code, please see either of these files:. See for more information about the OpenJDK Community and the JDK.
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            kandi-support Support

              OpenJDK has a low active ecosystem.
              It has 24 star(s) with 4 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              OpenJDK has no issues reported. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of OpenJDK is current.

            kandi-Quality Quality

              OpenJDK has no bugs reported.

            kandi-Security Security

              OpenJDK has 1 vulnerability issues reported (0 critical, 1 high, 0 medium, 0 low).

            kandi-License License

              OpenJDK has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              OpenJDK releases are not available. You will need to build from source code and install.
              OpenJDK has no build file. You will be need to create the build yourself to build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed OpenJDK and discovered the below as its top functions. This is intended to give you an instant insight into OpenJDK implemented functionality, and help decide if they suit your requirements.
            • do action based on action number
            • Init attribute reader .
            • Initialize component defaults .
            • Sets the metadata .
            • Get the user object path .
            • Start a document .
            • Parses the set of facets to apply .
            • Install the field keyboard bindings .
            • Determine the VirtualAccessibleName from an AccessibleContext .
            • Outputs the command line options .
            Get all kandi verified functions for this library.

            OpenJDK Key Features

            No Key Features are available at this moment for OpenJDK.

            OpenJDK Examples and Code Snippets

            No Code Snippets are available at this moment for OpenJDK.

            Community Discussions

            QUESTION

            Java, Intellij IDEA problem Unrecognized option: --add-opens=jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED
            Asked 2022-Mar-26 at 15:23

            I have newly installed

            ...

            ANSWER

            Answered 2021-Jul-28 at 07:22

            You are running the project via Java 1.8 and add the --add-opens option to the runner. However Java 1.8 does not support it.

            So, the first option is to use Java 11 to run the project, as Java 11 can recognize this VM option.

            Another solution is to find a place where --add-opens is added and remove it. Check Run configuration in IntelliJ IDEA (VM options field) and Maven/Gradle configuration files for argLine (Maven) and jvmArgs (Gradle)

            Source https://stackoverflow.com/questions/68554693

            QUESTION

            IntelliJ - Invalid source release: 17
            Asked 2022-Mar-17 at 13:46

            I've created a new Java project in IntelliJ with Gradle that uses Java 17. When running my app it has the error Cause: error: invalid source release: 17.

            My Settings

            I've installed openjdk-17 through IntelliJ and set it as my Project SDK.

            The Project language level has been set to 17 - Sealed types, always-strict floating-point semantics.

            In Modules -> Sources I've set the Language level to Project default (17 - Sealed types, always strict floating-point semantics).

            In Modules -> Dependencies I've set the Module SDK to Project SDK openjdk-17.

            In Settings -> Build, Execution, Deployment -> Compiler -> Java Compiler I've set the Project bytecode version to 17.

            Gradle

            ...

            ANSWER

            Answered 2021-Oct-24 at 14:23

            The message typically entails that your JAVA_HOME environment variable points to a different Java version.

            Here are the steps to follow:

            • Close IntelliJ IDEA
            • Open a terminal window and check your JAVA_HOME variable value:
              • *nix system: echo $JAVA_HOME
              • Windows system: echo %JAVA_HOME%
            • The JAVA_HOME path should be pointing to a different path, then set it to the openjdk-17 path:
              • *nix system: export JAVA_HOME=/path/to/openjdk-17
              • Windows system: set JAVA_HOME=path\to\openjdk-17
            • Open your project again in IntelliJ IDEA
            • Make sure to set both source and target compatibility versions (not only the sourceCompatibility)

            You should be able to build your project.

            EDIT: Gradle Toolchain

            You may need also to instruct Gradle to use a different JVM than the one it uses itself by setting the Java plugin toolchain to your target version:

            Source https://stackoverflow.com/questions/69696321

            QUESTION

            Flutter iOS Error Class AMSupportURLConnectionDelegate is implemented in both /usr/lib/libamsupport.dylib (0x203913130)
            Asked 2022-Mar-01 at 05:29

            Hi am facing an issue while running flutter project in MacBook Air M1 chip Lap. Tried all possibilities couldn't find where is the exact problem.

            All basic solutions like flutter clean, flutter pub get, pod deintegrate & install, flutter build ios, flutter run but still same issue. only on iOS simulator not deploying.

            Any solution for this. Thanks in advance.

            Error

            ...

            ANSWER

            Answered 2022-Feb-02 at 04:43

            I have been facing this same issue for some time now. the same setup is working nicely in a mac with intel chip. But i have even done a resetup of my system, m1 mac still throws the same error.

            Source https://stackoverflow.com/questions/70936334

            QUESTION

            Lambda expressions and anonymous classes don't work when loaded as hidden classes
            Asked 2022-Feb-26 at 05:14

            I am trying to compile and load dynamically generated Java code during runtime. Since both ClassLoader::defineClass and Unsafe::defineAnonymousClass have serious drawbacks in this scenario, I tried using hidden classes via Lookup::defineHiddenClass instead. This works fine for all classes that I tried to load, except for those that call lambda expressions or contain anonymous classes.

            Calling a lambda expression throws the following exception:

            ...

            ANSWER

            Answered 2022-Feb-23 at 18:19

            You can not turn arbitrary classes into hidden classes.

            The documentation of defineHiddenClass contains the sentence

            • On any attempt to resolve the entry in the run-time constant pool indicated by this_class, the symbolic reference is considered to be resolved to C and resolution always succeeds immediately.

            What it doesn’t spell out explicitly is that this is the only place where a type resolution ever ends up at the hidden class.

            But it has been said unambiguously in bug report JDK-8222730:

            For a hidden class, its specified hidden name should only be accessible through the hidden class's 'this_class' constant pool entry.

            The class should not be accessible by specifying its original name in, for example, a method or field signature even within the hidden class.

            Which we can check. Even a simple case like

            Source https://stackoverflow.com/questions/71224833

            QUESTION

            How to configure proxy in emulators in new versions of Android Studio?
            Asked 2022-Feb-23 at 14:14
            Problem Description

            I need to configure the proxy manually in my emulator through Android Studio. From the official Android documentation, it is suggested that this change can be made in the "settings" tab of the emulator's extended controls. The problem is that it seems to me that this documentation is outdated, as this setting is no longer displayed in the "settings" tab of the Android Studio emulators' extended controls.

            Documentation

            My Android Studio

            My version of Android Studio ...

            ANSWER

            Answered 2022-Feb-17 at 19:12

            After a while trying to find solutions to this problem, I saw that an emulator running outside android studio provides these options. To run a standalone Android Studio emulator see the official documentation or simply enter the command:

            Source https://stackoverflow.com/questions/70972106

            QUESTION

            How to open emulators in different windows at Android Studio (Bumblebee | 2021.1.1)?
            Asked 2022-Feb-22 at 19:06

            I have two running emulators but they open together in different tabs and in one single window.

            How to open them in two different window?

            ...

            ANSWER

            Answered 2022-Feb-17 at 10:47

            File->Settings->Tools->Emulator, and uncheck Launch in a tool window Then they will open in their own stand alone windows again.

            Source https://stackoverflow.com/questions/70923189

            QUESTION

            JMH using java 17, no dead code elimination
            Asked 2022-Feb-09 at 17:17

            I run sample JHM benchmark which suppose to show dead code elimination. Code is rewritten for conciseness from jhm github sample.

            ...

            ANSWER

            Answered 2022-Feb-09 at 17:17

            Those samples depend on JDK internals.

            Looks like since JDK 9 and JDK-8152907, Math.log is no longer intrinsified into C2 intermediate representation. Instead, a direct call to a quick LIBM-backed stub is made. This is usually faster for the code that actually uses the result. Notice how measureCorrect is faster in JDK 17 output in your case.

            But for JMH samples, it limits the the compiler optimizations around the Math.log, and dead code / folding samples do not work properly. The fix it to make samples that do not rely on JDK internals without a good reason, and instead use a custom written payload.

            This is being done in JMH here:

            Source https://stackoverflow.com/questions/71044636

            QUESTION

            Missing bounds checking elimination in String constructor?
            Asked 2022-Jan-30 at 21:18

            Looking into UTF8 decoding performance, I noticed the performance of protobuf's UnsafeProcessor::decodeUtf8 is better than String(byte[] bytes, int offset, int length, Charset charset) for the following non ascii string: "Quizdeltagerne spiste jordbær med flØde, mens cirkusklovnen".

            I tried to figure out why, so I copied the relevant code in String and replaced the array accesses with unsafe array accesses, same as UnsafeProcessor::decodeUtf8. Here are the JMH benchmark results:

            ...

            ANSWER

            Answered 2022-Jan-12 at 09:52

            To measure the branch you are interested in and particularly the scenario when while loop becomes hot, I've used the following benchmark:

            Source https://stackoverflow.com/questions/70272651

            QUESTION

            IconData takes a long time to load and does not show icons
            Asked 2022-Jan-24 at 04:27

            The list with icons (IconData) takes a very long time to load, about a minute. Previously, there was no such problem - the list was loaded in a couple of seconds. I tried reinstalling Flutter and Android Studio on an SSD, but it didn't help.

            How can this be fixed?

            ...

            ANSWER

            Answered 2021-Dec-23 at 10:33

            The developers have fixed this bug in one of the recent updates.

            Source https://stackoverflow.com/questions/69852463

            QUESTION

            Mac - how to install java 17
            Asked 2022-Jan-10 at 08:32

            Could someone please let me know the steps to install Java on a Mac.

            I did brew install java

            I get this

            ...

            ANSWER

            Answered 2021-Nov-07 at 18:40

            Java doesn't mind if you install multiple versions. This is often required; java is not backwards compatible (it tries to change little, but e.g. the java8 to java9 transition broke a ton of stuff, much of it needless and much of it not reasonably expectable or fixable by libraries and apps, so a bunch of java apps and libraries only run on java8 - just an example).

            So, yes, you have installed JDK17. Also, yes, if you just run java without specifying which one you want, you so happen to get java13 here.

            To see all installed javas, you can run:

            Source https://stackoverflow.com/questions/69875335

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            Unspecified vulnerability in the Java SE component in Oracle Java SE Java SE 7u60 and OpenJDK 7 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Libraries, a different vulnerability than CVE-2014-4223. NOTE: the previous information is from the July 2014 CPU. Oracle has not commented on another vendor's claim that the issue is related to improper restriction of the "use of privileged annotations."

            Install OpenJDK

            You can download it from GitHub.
            You can use OpenJDK like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the OpenJDK component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

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