Gets stuck

[ProuDog]

Type: Bug

check link: redhat-developer/vscode-java#4308

Extension version: 0.44.0
VS Code version: Code 1.108.1 (585eba7c0c34fd6b30faac7c62a42050bfbc0086, 2026-01-14T14:55:44.241Z)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

Item	Value
CPUs	AMD Ryzen 7 9800X3D 8-Core Processor (16 x 4691)
GPU Status	2d_canvas: enabled direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off trees_in_viz: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	31.15GB (17.48GB free)
Process Argv	C:\Users\GOKER-DESKTOP\Desktop\AG03 Final --crash-reporter-id 1de5e78e-efb2-458f-989e-acc2c3fc0cbf
Screen Reader	no
VM	0%

A/B Experiments

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anthropic_thinking_t:31432745
h_21abi904:31446851
406hc587_ask_agent:31428393
cp_cls_c_1081:31443829
copilot-nes-callisto-trt:31434412
nowdiget:31442216
nes-slash-models-on:31441832
nes-set-to-on:31441941
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ts_provider_enabled:31446104

[github-actions]

Hi ProuDog, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

Here are some steps you can try when the Java extension “gets stuck”:

• Check the Java Language Server logs for errors:

  1. In VS Code, open the Output panel (View → Output).
  2. Select Language Support for Java from the dropdown.
  3. Look for repeated errors or stack traces.

• Clean and restart the language server:

  • Run the Java: Clean the Java language server workspace command (⇧⌘P or Ctrl+Shift+P).
  • Reload the window (Developer: Reload Window).

• Disable other extensions that may interfere (e.g., IntelliCode or code formatters), then reload.

• Update to the latest Java extension pack (v0.45.0+), as many stability fixes land in patch releases.

• If the issue persists, collect the language server logs and file a new issue including:

  • Full Error or Exception stack trace from the Output panel.
  • A minimal project that reproduces the hang.

Other references with low confidence

• StringIndexOutOfBoundsException while computing hover and folding range (may hint at language-server crashes)
  • Description: language support features (folding, hover) break with SIOOBE and then features get stuck
  • No clear solution; suggestions included disabling IntelliCode and cleaning workspace
  • URL: StringIndexOutOfBoundsException while computing hover and folding range redhat-developer/vscode-java#1644

The team will respond to your issue shortly. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or incorrect, please give it a 👎. Your feedback helps us improve!

[wenytang-ms]

Thanks for the report. Based on the linked issue redhat-developer/vscode-java#4308, the root cause is a corrupted redhat.java (vscode-java) installation (missing config.ini), not an issue in vscode-java-test. The reporter already confirmed that switching to the vscode-java pre-release resolved the problem.

For a clean fix on the release channel, please follow the steps suggested in redhat-developer/vscode-java#4308 (close VS Code, delete the java extensions under %USERPROFILE%\.vscode\extensions and %APPDATA%\Code\CachedExtensions\, then reinstall vscode-java 1.51.0).

Closing here since this is not actionable in vscode-java-test. Please continue the discussion in the upstream issue if the problem persists.