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As we seek to continually improve the Visual Studio Code experience for Java developers, we’d like to share couple new features we’ve just released. Thanks for your great feedback over the year, we’re heading into the holidays with great new features we hope you’ll love. Here’s to a great 2019!

Rename

With the new release of the Eclipse JDT Language Server, we’re removing the friction some developers experienced in ensuring renamed Java classes perpetuate into the underlying file in Visual Studio Code. With the update, when a symbol is renamed the corresponding source file on disk is automatically renamed, along with all the references.

Debugger

VS Code Logpoints is now supported in the Java Debugger. Logpoints allow you to inspect the state and send output to debug console without changing the source code and explicitly adding logging statements. Unlike breakpoints, logpoints don’t stop the execution flow of your application.

To make debugging even easier, you can now skip editing the “launch.json” file by either clicking the CodeLens on top of the “main” function or using the F5 shortcut to debug the current file in Visual Studio Code.

TestNG support

TestNG support was added to the newest version of the Java Test Runner. With the new release, we’ve also updated the UI’s of the test explorer and the test report. See how you can work with TestNG in Visual Studio Code.

We’ve also enhanced our JUnit 5 support with new annotations, such as @DisplayName and @ParameterizedTest.

Another notable improvement in the Test Runner is that we’re no longer loading all test cases during startup. Instead, the loading now only happens when necessary, e.g. when you expand a project to see the test classes in the Test viewlet. This should reduce the resource needed on your environment and enhance the overall performance of the tool.

Updated Java Language Pack

We’ve included the recently released Java Dependency Viewer to the Java Extension Pack as more and more developers are asking for the package view, dependency management and project creation capability provided by this extension. The viewer also provides a hierarchy view of the package structure.

Additional language support – Chinese

As the user base of Java developers using Visual Studio Code is expanding around the world, we decided to make our tool even easier to use for our users internationally by offering translated UI elements. Chinese localization is now available for Maven and Debugger, it will soon be available for other extensions as well. We’d also like to welcome contributions from community for localization as well.

IntelliCode and Live Share

During last week’s Microsoft Connect() event, we shared updates on the popular Visual Studio Live Share and Visual Studio IntelliCode features. The new IDE capabilities – all of which support Java – provide you with even better productivity with enhanced collaboration and coding experience that you can try now in Visual Studio Code.

Just download the extensions for Live Share and IntelliCode to experience those new features with your friends and co-workers. Happy coding and happy collaborating!

Attach missing sources

When you navigate to a class in some libraries without source code, you can now attach the missing source zip/jar using the context menu “Attach Source”.

We love your feedback

Your feedback and suggestions are especially important to us and will help shaping our products in future. Please help us by taking this survey to share your thoughts!

Try it out

Please don’t hesitate to try Visual Studio Code for your Java development and let us know your thoughts! Visual Studio Code is a lightweight and performant code editor and our goal is to make it great for the entire Java community.

• Install the Java Extension Pack which including Language Support for Java(TM) by Red Hat, Debugger for Java, Maven, Java Test Runner and Java Dependency Viewer.
• Install other Java related extensions base on your needs, including
  • Checkout Tomcat and Jetty if you’re working with those technologies.
  • In case you’re working on Spring Boot, there’re also great support provided by Pivotal and Microsoft available on VS Code including Spring Boot Tools, Spring Initializr and Spring Boot Dashboard.
  • Checkstyle could be handy when you need coherence code style especially cross multiple team members.
• Learn more about Java on Visual Studio Code.
• Explore our step by step Java Tutorials on VS Code.

Xiaokai He, Program Manager @XiaokaiHeXiaokai is a program manager working on Java tools and services. He’s currently focusing on making Visual Studio Code great for Java developers, as well as supporting Java in various of Azure services.

At Build 2018, we announced Visual Studio IntelliCode, a set of AI-assisted capabilities that improve developer productivity. IntelliCode includes features like contextual IntelliSense code completion recommendations, code formatting, and style rule inference.

IntelliCode has just received some major updates that make its context-sensitive AI-assisted IntelliSense recommendations even better. You can download the updated IntelliCode Extension for Visual Studio and IntelliCode Extension for Visual Studio Code today! The Visual Studio extension already works with the newly-release Visual Studio 2019 Preview 1.

AI-assisted IntelliSense recommendations based on your language of choice

Many of you have requested IntelliCode recommendations for your favorite languages. With this update, we’re excited to add four more languages to the list that can get AI-assisted IntelliSense recommendations. In our extension for Visual Studio, C++ and XAML now get IntelliCode alongside existing support for C#. In our extension for Visual Studio Code, TypeScript/JavaScript and Java are added alongside existing support for Python.

We’ll be sharing more details about IntelliCode’s support for each language on their respective blogs [C++ | TypeScript and JavaScript | Java]

AI-assisted IntelliSense for C# with recommendations based on your own code

Until now, IntelliCode’s recommendations have been based on learning patterns from thousands of open source GitHub repos. But what if you’re using code that isn’t in that set of repos? Perhaps you use a lot of internal utility and base class libraries, or domain-specific libraries that aren’t commonly used in open source code, and would like to see IntelliCode recommendations for them too? If you’re using C#, you can now have IntelliCode learn patterns and make recommendations based on your own code!

When you open Visual Studio after installing the updated IntelliCode Extension for Visual Studio, you’ll see a prompt that lets you know about training on your code, and will direct you to the brand new IntelliCode page to get started. You can also find the new page under View > Other Windows > IntelliCode.  Once training is done, we’ll let you know about the top classes we found usage for, so you can just open a C# file and start typing to try out the new recommendations. We keep the trained models secured, so only you and those who have been given your model’s sharing link can access them–so your model and what it’s learned about your code stay private to you. See our FAQ for more details.

Check out Allison’s video below to see how this new feature works.

Get Involved

As you can see, IntelliCode is growing new capabilities fast. Get the IntelliCode Extension for Visual Studio and the IntelliCode Extension for Visual Studio Code to try right away, and let us know what you think.  You can also find more details about the extensions in our FAQ.

IntelliCode and its underlying service are in preview at present. If you hit issues using the new features and you’re using Visual Studio, use the built-in Visual Studio “Report a Problem” option, and mention IntelliCode in your report. If you’re a Visual Studio Code user, just head over to our GitHub issues page and report your problem there.

If you want to learn more or keep up with the project as we expand the capabilities to more scenarios and other languages, please sign up for email updates. Thanks!

Mark Wilson-Thomas, Senior Program Manager @MarkPavWT  #VSIntelliCode Mark is a Program Manager on the Visual Studio IntelliCode team. He’s been building developer tools for over 10 years. Prior to IntelliCode, he worked on the Visual Studio Editor, and on tools for Office, SQL, WPF and Silverlight.