redhat-developer/lsp4ij

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LSP & DAP Client for IntelliJ

Stars: 344
Forks: 113
Open beginner issues: 0
Indexed issues: 132
Avg merge: 5h 22m
Merged PRs (30d): 15

Dominant language: Java
License: EPL-2.0
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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132 open issues indexed

Support PyCharm's built-in macros in DAP configuration fields (especially File) Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

redhat-developer/lsp4ij#1669 · Opened Sep 17, 2026
Support LSP quick fixes and intention actions on non-project files by implementing `DumbAware` on `LSPLazyCodeActionIntentionAction` Open

Difficulty 3/5 1-2 days Newbie friendliness 74/100

redhat-developer/lsp4ij#1668 · Opened Sep 16, 2026
Inlay hints font size is bigger than in other plugins Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

redhat-developer/lsp4ij#1664 · Opened Sep 8, 2026
Please support using directory environment variables in LSP and DAP Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

redhat-developer/lsp4ij#1660 · 2 comments · Opened Sep 2, 2026
Golang DAP: `fmt.Println()`/`fmt.Println("")`/`fmt.Print("\n")` are not displayed in the DAP output Open

bug

redhat-developer/lsp4ij#1651 · 6 comments · 1 assignee · Opened Aug 31, 2026
com.intellij.openapi.diagnostic.RuntimeExceptionWithAttachments: Access from Event Dispatch Thread (EDT) is not allowed; Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

redhat-developer/lsp4ij#1650 · 2 comments · Opened Aug 30, 2026
In intellij, commit format can't be filtered by file type Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

redhat-developer/lsp4ij#1647 · 2 comments · Opened Aug 27, 2026
After reopened IntelliJ IDEA and run or debug test.js, LSP4IJ will download dapDebugServer.js again Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

redhat-developer/lsp4ij#1635 · Opened Aug 16, 2026
Feature Request: Distinguish explicit vs implicit feature invocations Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

redhat-developer/lsp4ij#1617 · Opened Jul 17, 2026
Ctrl+hover underline ignores LocationLink.originSelectionRange for TextMate-backed file types (whole document underlined) Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

redhat-developer/lsp4ij#1612 · 3 comments · Opened Jul 12, 2026
[0.20.1 version] How to configure workspace folder in Rider for a custom LSP server? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1608 · 1 comment · Opened Jul 1, 2026
java.util.concurrent.CompletionException: com.redhat.devtools.lsp4ij.server.CannotStartProcessException: Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1600 · 2 comments · Opened Jun 12, 2026
Add MCP Server support to LSP4IJ to expose LSP and DAP features as MCP tools Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

redhat-developer/lsp4ij#1581 · 2 reactions · Opened Jun 5, 2026
Ongoing futures never complete when LSP server crashes Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

redhat-developer/lsp4ij#1565 · 5 comments · Opened May 28, 2026
Server status shows "stopping" during `lastDocumentDisconnectedTimeout` grace period Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

redhat-developer/lsp4ij#1553 · Opened May 25, 2026
java.lang.Throwable: Slow operations are prohibited on EDT. See SlowOperations.assertSlowOperationsAreAllowed javadoc. Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1540 · Opened May 22, 2026
`textDocument/documentLink` navigation fails for files outside project directories (e.g., external libraries) Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

redhat-developer/lsp4ij#1533 · 15 comments · Opened May 21, 2026
Is there any mechanism for tracking timing of analysis features end-to-end? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

redhat-developer/lsp4ij#1483 · 5 comments · Opened May 5, 2026
`Error while consuming 'textDocument/declaration' with language server 'SourceKit-LSP'` while editing a Swift file in IntelliJ 2025.3.3 Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

redhat-developer/lsp4ij#1434 · 2 comments · Opened Mar 13, 2026
Nothing happens when valid breakpoint added in editor during running DAP debug process Open

bug dap

Difficulty 4/5 3-5 days Newbie friendliness 52/100

redhat-developer/lsp4ij#1433 · 1 comment · Opened Mar 10, 2026
DAP debugger variables are not showing inline in the editor Open

dap

Difficulty 4/5 3-5 days Newbie friendliness 25/100

redhat-developer/lsp4ij#1432 · 3 comments · Opened Mar 10, 2026
Allow disable language server configuration Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

redhat-developer/lsp4ij#1393 · 5 comments · Opened Dec 7, 2025
Capture LSP traces per language server and write them to a log file Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1387 · 1 comment · 1 reaction · Opened Dec 2, 2025
Bug/Feature Request: Allow configurable error reporting levels for partial LSP compatibility Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

redhat-developer/lsp4ij#1384 · 6 comments · Opened Nov 29, 2025
`didClose` and `didOpen` events go out of balance when dragging an editor window from the main IDE view to another view Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

redhat-developer/lsp4ij#1383 · 6 comments · Opened Nov 28, 2025
Plugin in version 0.17.0 throws this error Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

redhat-developer/lsp4ij#1350 · 1 comment · Opened Oct 27, 2025
"org.eclipse.lsp4j.jsonrpc.ResponseErrorException: Internal error." On Scala metals 1.6.3 Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

redhat-developer/lsp4ij#1347 · 2 comments · Opened Oct 24, 2025
Strange time calculation after installing a language server that exists on the system Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 38/100

redhat-developer/lsp4ij#1335 · 1 comment · Opened Oct 14, 2025
Renaming implementation on client differs from VS Code Open

bug

redhat-developer/lsp4ij#1319 · 34 comments · 1 reaction · 1 assignee · Opened Oct 6, 2025
"Find Usages" does not work for `LSPSemanticTokenElementType.DECLARATION` Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

redhat-developer/lsp4ij#1281 · 11 comments · Opened Sep 18, 2025
Support Workspace Diagnostics workspace/diagnostic Open

diagnostic enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1253 · 6 comments · Opened Sep 4, 2025
Installation links should be disabled/hidden if there is no configuration Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1229 · 1 comment · Opened Aug 21, 2025
Code Completion start position Open

api-customization completion enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1220 · 3 comments · Opened Aug 15, 2025
feature request: add API for LSP4IJ-based extensions to set verbose tracing by default Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

redhat-developer/lsp4ij#1208 · 4 comments · Opened Aug 7, 2025
Error while consuming 'textDocument/codeLens' with language server 'Tools for MicroProfile' Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1203 · 1 comment · Opened Aug 5, 2025
Support External RunInTerminal for Mac Open

dap enhancement

Difficulty 4/5 3-5 days Newbie friendliness 30/100

redhat-developer/lsp4ij#1199 · Opened Jul 31, 2025
Scala-metals integration: double clicking any language keyword (e.g. def/var/import) will cause the enclosing definition paragraph to be selected Open

bug selectionRange

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1179 · 3 comments · Opened Jul 11, 2025
Persisted flag for auto-install "Dismiss" link is too coarse-grained Open

enhancement user-defined LS

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1173 · 3 comments · Opened Jul 8, 2025
Incorrect highlight on open reference (clangd) Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1153 · 20 comments · Opened Jun 25, 2025
Unclear to user what the inlay hints LSP setting does Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1132 · 4 comments · Opened Jun 18, 2025
Set the `augmentsSyntaxTokens` client capability if appropriate Open

enhancement semantic tokens

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#1101 · Opened Jun 6, 2025
The completion request is not sent when typing quickly Open

bug completion

Difficulty 4/5 3-5 days Newbie friendliness 25/100

redhat-developer/lsp4ij#1020 · 9 comments · Opened May 6, 2025
"Find Usages" sends incorrect line number to `textDocument/references` on decorated function in python Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

redhat-developer/lsp4ij#985 · 3 comments · Opened Apr 22, 2025
Completion collapses with previous line when triggered on a new empty line Open

bug completion

Difficulty 3/5 1-2 days Newbie friendliness 55/100

redhat-developer/lsp4ij#945 · 3 comments · Opened Apr 1, 2025
Add support for custom semantic token types and modifiers Open

enhancement semantic tokens user-defined LS

Difficulty 5/5 Over a week Newbie friendliness 35/100

redhat-developer/lsp4ij#871 · 3 comments · Opened Feb 28, 2025
lsp4ij as a dependency and not a plugin only Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

redhat-developer/lsp4ij#870 · 9 comments · 6 reactions · Opened Feb 28, 2025
Make LSP-based EP implementations `DumbAware` as much as (safely) possible Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

redhat-developer/lsp4ij#867 · 1 comment · Opened Feb 24, 2025
Code Compeltion fuzzy match Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

redhat-developer/lsp4ij#834 · 2 comments · Opened Feb 11, 2025
Error while consuming 'textDocument/implementation' with language server 'Go Language Server' Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

redhat-developer/lsp4ij#829 · 9 comments · Opened Feb 11, 2025
Find references shortcut lost when callHierarchy is enabled Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

redhat-developer/lsp4ij#801 · 5 comments · Opened Feb 4, 2025

redhat-developer/lsp4ij

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