[NETBEANS-6327] IllegalArgumentException caused by FoldManagerImpl in LSP client

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 12.6
• Component/s: lsp

Environment

Windows and Linux

Tested with Python language server: https://github.com/palantir/python-language-server

• Assignee: Michael Küttner
• Reporter: Michael Küttner
• Created: 21/Dec/21 11:56
• Updated: 21/Dec/21 11:58
• Resolved: 21/Dec/21 11:58

Description

java.lang.IllegalArgumentException: Invalid end offset: -2, start is: 28
at org.netbeans.spi.editor.fold.FoldInfo.<init>(FoldInfo.java:103)
at org.netbeans.spi.editor.fold.FoldInfo.range(FoldInfo.java:94)
at org.netbeans.modules.lsp.client.bindings.FoldManagerImpl.run(FoldManagerImpl.java:126)
at org.netbeans.modules.lsp.client.LSPBindings.lambda$addBackgroundTask$13(LSPBindings.java:411)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033) 

This exception occurs if a language server returns FoldingRanges without an endCharacter (only lines are set) and if the fold reaches until end of current document.