Cursor ramps up Java support with focused engineering and open-source contributions
Cursor announced a focused investment to improve Java tooling, centering work on the Java LSP and contributions back to the VS Code ecosystem. The initiative pairs an internal, dedicated team with collaboration from established LSP authors and contributors across Red Hat, Microsoft, IBM, and others.
What’s being tackled
The effort targets LSP performance bottlenecks and project initialization, two areas that commonly slow down large Java codebases. Rather than keeping fixes proprietary, the team plans to contribute improvements upstream so the wider VS Code Java ecosystem benefits.
Measured early wins
Initial changes already show measurable improvements in common workflows:
- Project imports have improved by about 10%.
- Debugger scans in large codebases dropped from more than 5 seconds to under 200 ms.
These optimizations speak directly to developer pain points when opening and navigating sizable Java projects.
Ecosystem collaboration
Cursor’s work is happening in partnership with maintainers and contributors to the VS Code Java ecosystem. Leaders from Eclipse JDT-LS and the vscode-java project noted that focusing on LSP performance and project initialization helps address scaling challenges for enterprise Java developers, and welcomed the deepening collaboration among existing partners.
How to get involved
Developers and contributors interested in collaboration can contact the team via email at java@cursor.com.
For full details, see the original post: https://cursor.com/blog/java
