vieiro opened a new issue, #4192:
URL: https://github.com/apache/netbeans/issues/4192
### Apache NetBeans version
Apache NetBeans latest daily build
### What happened
I got the following exception in NB 14 (RC6)
```
java.util.ConcurrentModificationException: Caller uses obsolete token
sequence which is no longer valid. Underlying token hierarchy has been modified
by insertion or removal or a custom language embedding was
created.TS.modCount=4602, tokenList.modCount()=4603, rootModCount=4603
Please report a bug against a module that calls lexer's code e.g. java, php
etc. but not the lexer module itself.
at
org.netbeans.api.lexer.TokenSequence.checkValid(TokenSequence.java:784)
at
org.netbeans.api.lexer.TokenSequence.moveIndex(TokenSequence.java:568)
at
org.netbeans.modules.java.editor.base.semantic.TokenList.resetToIndex(TokenList.java:372)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.visitExpressionStatement(SemanticHighlighterBase.java:752)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.visitExpressionStatement(SemanticHighlighterBase.java:270)
at
com.sun.tools.javac.tree.JCTree$JCExpressionStatement.accept(JCTree.java:1592)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
at
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.scan(SemanticHighlighterBase.java:1006)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.scan(SemanticHighlighterBase.java:270)
at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
at com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
at
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
at com.sun.source.util.TreeScanner.visitBlock(TreeScanner.java:272)
at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1103)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
at
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.scan(SemanticHighlighterBase.java:1006)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.visitMethod(SemanticHighlighterBase.java:826)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.visitMethod(SemanticHighlighterBase.java:270)
at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:953)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
at
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.scan(SemanticHighlighterBase.java:1006)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.scan(SemanticHighlighterBase.java:270)
at com.sun.source.util.TreeScanner.scanAndReduce(TreeScanner.java:96)
at com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
at
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.visitClass(SemanticHighlighterBase.java:934)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.visitClass(SemanticHighlighterBase.java:270)
at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:860)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
at
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.scan(SemanticHighlighterBase.java:1006)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.scan(SemanticHighlighterBase.java:270)
at com.sun.source.util.TreeScanner.scan(TreeScanner.java:111)
at
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:78)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.visitCompilationUnit(SemanticHighlighterBase.java:551)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.visitCompilationUnit(SemanticHighlighterBase.java:270)
at
com.sun.tools.javac.tree.JCTree$JCCompilationUnit.accept(JCTree.java:614)
at com.sun.source.util.TreePathScanner.scan(TreePathScanner.java:86)
at
org.netbeans.api.java.source.support.CancellableTreePathScanner.scan(CancellableTreePathScanner.java:69)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase$DetectorVisitor.scan(SemanticHighlighterBase.java:1006)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase.process(SemanticHighlighterBase.java:156)
at
org.netbeans.modules.java.editor.semantic.SemanticHighlighter.process(SemanticHighlighter.java:56)
at
org.netbeans.modules.java.editor.base.semantic.SemanticHighlighterBase.run(SemanticHighlighterBase.java:112)
at
org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
[catch] at
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
at
org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
at
org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at
org.openide.util.RequestProcessor$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)
at
org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)
```
### How to reproduce
Difficult to say :-(
### Did this work correctly in an earlier version?
No
### Operating System
Windows 10
### JDK
OpenJDK Runtime Environment 11.0.15+9-LTS
### Apache NetBeans packaging
Apache NetBeans binary zip
### Anything else
_No response_
### Are you willing to submit a pull request?
Yes
### Code of Conduct
Yes
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