Then it's up to you to step through the code, hit breakpoints, etc. automatically for you and connects debugger to the started JVM. The system invokes mx build and mx unittest. Open a test class, locate method to debug and choose Debug : Edit, use code completions provided by the system, open tests, run and debug them. Wait for the Apache NetBeans Language Server extension to be initialized (shows Indexing finished in the status line). Then open the suite in code as a folder (_File/Open Folder_). Then select a suite ( graal/sdk, graal/truffle, graal/compiler, etc.) and build it using mx build. Get the Graal repository (or related repositories like Graal.js, Graal Python, etc.) and prepare it for development (most importantly make sure the mx tool is on PATH ). Then, enjoy browsing and editing the OpenJDK sources! Tests are typically in either the test/jdk or test/langtools folder.Īfter opening the folders, it is recommended to wait for the "Indexing Complete." messages in the status line. When opening the first module, use File/Open Folder., to open additional modules and/or tests, using File/Add Folder To Workspace. For example, to open the most basic java.base module, open src/java.base. To open an OpenJDK module inside VS Code, open the src/ directory. configure using bash configure, and provide a path to jtreg, like using the -with-jtreg= option. SetUpįollow these steps to prepare the OpenJDK sources: The OpenJDK sources can be directly open in VS Code using VSNetBeans. Happy Polyglot development and debugging with VSNetBeans! Scenario 3: Open OpenJDK Source The modified graal-js-jdk11-maven-demo is available for your convenience as: When started you should see something like following screenshot with Call Stack from JS to Java and variables from JS and Java depending on what context you have currently stepped into.Select F5 to launch debugger and select type Java 8+ which is VSNetBeans provided debugger for JDK 8 and Polyglot capable of debugging Java and scripting languages like Graal.JS impl.Set breakpoint to line 11 in fib.js and.Once the build succeeds, let's test the project. The project is also built when the debugger starts, but it is worth checking before the first debug session to make sure that the Maven build passes.This is an action provided by VSNetBeans which builds the project.Save all files and invoke action from Command Palette: Java: Compile Workspace.In main/java/com/mycompany/app, add a new file named PolyglotSample.java with the following code: Remove App.java and AppTest.java originally coming with the sample Maven project.Open Folder with graal-js-jdk11-maven-demo in VSCode.In VS Code, go to Preferences | Settings, search for netbeans.jdkhome, and set it to /path/to/jdk11 (or later).Although this archetype is named * jdk11* it can be used with JDK 8 as well, just set to both variables JAVA_HOME and netbeans.jdkhome to your JDK8 home.Make sure that JAVA_HOME points at a JDK11 (or later) export JAVA_HOME=/path/to/jdk11.Clone sample repository and move to the newly cloned directory.The sample is a simple Java application invoking in a loop fibonaci calculation for incremented number written in JavaScript.Ĭomplete sample is attached below for your convenience. Graal-js-jdk11-maven-demo Maven Archetype In this sample we will go over how to create and debug Java JavaScript polyglot project using JDK 11, Graal.JS, and ready to go sample: Generate the project, download it, extract it into local disk.Ĭan your VSCode do that with the RedHat extension on JDK 8? If not, install the Apache NetBeans VSCode extension! Scenario 2: Polyglot Debugging Get an existing Java project, for example, Micronaut: ĭon't forget to select Java. Or download the latest development version of Apache NetBeans Language Server extension and install it into VSCode via Install from VSIX.ġ. Get the latest Apache NetBeans VSCode extension from the official VS Code market place (The Red Hat extension requires JDK 11 or above.) VS Code already has support for Java, provided by an extension created by Red Hat, though what that extension misses are the following features that VSNetBeans provides out of the box: By using VSNetBeans, you're using the same Java tools that are part of Apache NetBeans, so that we hope that VSNetBeans will provide a new avenue for feedback to the Apache NetBeans project. And, if not, that's also fine.įull Java editing and debugging support is provided by VSNetBeans directly in your VSCode environment. Install VSNetBeans into VS Code, use it, and maybe you'll want to try the complete Apache NetBeans experience, which is Apache NetBeans. VSNetBeans, the Apache NetBeans Extension for Visual Studio Code, is created as a promotional tool by the Apache NetBeans community for VS Code users.
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