openjdk | Source code annotation warehouse based on jdk11 | Blockchain library
kandi X-RAY | openjdk Summary
kandi X-RAY | openjdk Summary
Source code annotation warehouse based on jdk11
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Top functions reviewed by kandi - BETA
- do action .
- Initialize attribute readers .
- Initialize the component defaults .
- Compute integer constants .
- Sets the metadata .
- Gets the user object path .
- Start a new document .
- Parses the set of facets and validates them .
- Determine the VirtualAccessibleName from an AccessibleContext .
- Writes an image to the thread .
openjdk Key Features
openjdk Examples and Code Snippets
Community Discussions
Trending Discussions on openjdk
QUESTION
I have newly installed
...ANSWER
Answered 2021-Jul-28 at 07:22You 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)
QUESTION
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 14:23The 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%
- *nix system:
- 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
- *nix system:
- 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 ToolchainYou 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:
QUESTION
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 04:43I 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.
QUESTION
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 18:19You 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 toC
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
QUESTION
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 19:12After 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:
QUESTION
ANSWER
Answered 2022-Feb-17 at 10:47File->Settings->Tools->Emulator, and uncheck Launch in a tool window Then they will open in their own stand alone windows again.
QUESTION
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 17:17Those 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:
QUESTION
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 09:52To measure the branch you are interested in and particularly the scenario when while
loop becomes hot, I've used the following benchmark:
QUESTION
ANSWER
Answered 2021-Dec-23 at 10:33The developers have fixed this bug in one of the recent updates.
QUESTION
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 18:40Java 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:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
Install openjdk
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 .
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