LSP-jdtls

This is a helper package that manages and downloads the Eclipse JDT language server for you.

To use this package, you must have:

• The LSP package.
• A Java SDK (>= 25).
• The language server is started with the JDK in the java.jdt.ls.java.home setting, under "settings" in the plugin settings. If it isn't set, the JDK in the JAVA_HOME environment variable is used, and otherwise java from the PATH.
• It's recommended to install LSP-file-watcher-rust. Without a file watcher, jdtls isn't notified about files changed outside of Sublime Text, for example build files updated by git pull or jars added to lib/ (see java.project.referencedLibraries).

Configuration

Configure jdtls by running Preferences: LSP-jdtls Settings from the command palette.

Capabilities

jdtls can do a lot of cool things, like

• code completion
• signature help
• hover info
• code actions
• formatting
• find references
• goto def

Commands

Troubleshoot

Server exits with code 13

The server caches workspace specific information in a data directory that is separate for each workspace (Sublime project or set of open folders). When this data is corrupted the server crashes with exit code 13 and the server is disabled for the current project.

Run the command LSP-jdtls: Clear data from the command palette and re-enable the server using the command LSP: Enable Language Server in Project.

Running tests fails with "LSP-jdtls must be installed via package control"

The Java adapter of Debugger only starts when both LSP and LSP-jdtls are installed via Package Control. If you installed either of them manually (e.g. cloned or symlinked into the Packages folder), list it in installed_packages in the Debugger settings (Preferences: Debugger Settings from the command palette):

{
    "installed_packages": ["LSP", "LSP-jdtls"],
}

Licenses

• The Java Debug Plugin is licensed under Eclipse Public License 1.0.
• The Test Runner for Java is licensed under MIT License
• The Decompiler for Java™ in Visual Studio Code is licensed under Eclipse Public License 2.0