SLDS LSP spawns multiple zombie Java processes consuming 600%+ CPU and 7GB+ RAM

[Rafcin]

Environment
macOS 14 (Darwin 25.2.0), Apple Silicon
VS Code 1.96.x
Extension version: 2.0.12
Java: OpenJDK 21 (Homebrew)

Problem
The SLDS LSP extension spawns multiple Java processes that never terminate and consume extreme system resources. I discovered 6 concurrent lsp-2.0.12-executable.jar processes running simultaneously:

PID    %CPU  MEM     TIME     PORT
15963  100%  2.2 GB  6:45     51122
7721   100%  1.6 GB  22:42    50073
19835  99%   28 MB   1:11     51255
3968   99%   808 MB  32:34    49659
8245   99%   1.1 GB  22:57    50132
1253   99%   1.5 GB  36:21    49193
Total impact: ~600% CPU, ~7.3 GB RAM

This caused my MacBook fans to run at full speed and significant thermal throttling.

Steps to Reproduce

1. Install SLDS extension
2. Open a Salesforce project with LWC components
3. Work normally for ~30 minutes
4. Check ps aux | grep salesforce-vscode-slds
5. Expected Behavior
6. Single LSP process per workspace
7. Process terminates when VS Code window closes
8. Reasonable memory usage (<500MB)
9. Kill processes manually and uninstall extension: pkill -f "salesforce.salesforce-vscode-slds"

Possible Cause
The LSP appears to spawn a new Java process on each workspace open or extension reload without terminating previous instances.