niabot opened a new issue, #8174:
URL: https://github.com/apache/netbeans/issues/8174
### Apache NetBeans version
Apache NetBeans 24
### What happened
When editing TOML files for Gradle projects the editor hangs if there is a
temporary syntax error in the files. At first the editor won't let me type
anything within unmatched curly braces. Deleting the braces is also not
possible. Under some circumstances the entire editor (and netbeans) hangs
(endless loop). I get the following or similar exceptions:
```
java.lang.IllegalStateException: Lexer
org.netbeans.modules.languages.toml.TomlLexer@4eeb0fe6
returned null token but lexerInput.readLength()=2
lexer-state: -1
tokenStartOffset=1778, readOffset=1780, lookaheadOffset=1781
Chars: "\n\n" - these characters need to be tokenized.
Fix the lexer to not return null token in this state.
at
org.netbeans.lib.lexer.LexerInputOperation.checkLexerInputFinished(LexerInputOperation.java:435)
at
org.netbeans.lib.lexer.LexerInputOperation.nextToken(LexerInputOperation.java:193)
at
org.netbeans.lib.lexer.inc.IncTokenList.tokenOrEmbeddingImpl(IncTokenList.java:170)
at
org.netbeans.lib.lexer.inc.IncTokenList.tokenOrEmbedding(IncTokenList.java:165)
at org.netbeans.api.lexer.TokenSequence.moveNext(TokenSequence.java:458)
at
org.netbeans.modules.textmate.lexer.SyntaxHighlighting$TSInfo.moveNextToken(SyntaxHighlighting.java:785)
at
org.netbeans.modules.textmate.lexer.SyntaxHighlighting$HSImpl.moveTheSequence(SyntaxHighlighting.java:482)
at
org.netbeans.modules.textmate.lexer.SyntaxHighlighting$HSImpl.moveNext(SyntaxHighlighting.java:431)
at
org.netbeans.modules.editor.lib2.highlighting.DirectMergeContainer$Wrapper.fetchNextHighlight(DirectMergeContainer.java:600)
at
org.netbeans.modules.editor.lib2.highlighting.DirectMergeContainer$HlSequence.updateMergeVars(DirectMergeContainer.java:337)
at
org.netbeans.modules.editor.lib2.highlighting.DirectMergeContainer$HlSequence.nextMerge(DirectMergeContainer.java:303)
at
org.netbeans.modules.editor.lib2.highlighting.DirectMergeContainer$HlSequence.moveNext(DirectMergeContainer.java:234)
at
org.netbeans.modules.editor.lib2.highlighting.HighlightsReader.readUntil(HighlightsReader.java:59)
at
org.netbeans.modules.editor.lib2.view.HighlightsViewFactory.restart(HighlightsViewFactory.java:168)
at
org.netbeans.modules.editor.lib2.view.ViewBuilder$FactoryState.init(ViewBuilder.java:1299)
at
org.netbeans.modules.editor.lib2.view.ViewBuilder.createViews(ViewBuilder.java:699)
at
org.netbeans.modules.editor.lib2.view.ViewBuilder.createReplaceRepaintViews(ViewBuilder.java:660)
at
org.netbeans.modules.editor.lib2.view.ViewUpdates.reinitAllViews(ViewUpdates.java:189)
at
org.netbeans.modules.editor.lib2.view.DocumentViewOp.checkViewsInited(DocumentViewOp.java:621)
at
org.netbeans.modules.editor.lib2.view.DocumentView.getPreferredSpan(DocumentView.java:226)
at
java.desktop/javax.swing.plaf.basic.BasicTextUI$RootView.getPreferredSpan(BasicTextUI.java:1454)
at
java.desktop/javax.swing.plaf.basic.BasicTextUI.getPreferredSize(BasicTextUI.java:950)
at
java.desktop/javax.swing.JComponent.getPreferredSize(JComponent.java:1734)
at
java.desktop/javax.swing.JEditorPane.getPreferredSize(JEditorPane.java:1390)
at
org.netbeans.modules.editor.NbEditorUI$LayeredEditorPane.getPreferredSize(NbEditorUI.java:454)
at
java.desktop/javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:799)
at
com.formdev.flatlaf.ui.FlatScrollPaneUI$FlatScrollPaneLayout.layoutContainer(FlatScrollPaneUI.java:563)
at java.desktop/java.awt.Container.layout(Container.java:1541)
at java.desktop/java.awt.Container.doLayout(Container.java:1530)
at java.desktop/java.awt.Container.validateTree(Container.java:1725)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validate(Container.java:1660)
at
org.netbeans.core.windows.view.ui.DesktopImpl$LayeredLayout.layoutContainer(DesktopImpl.java:529)
at java.desktop/java.awt.Container.layout(Container.java:1541)
at java.desktop/java.awt.Container.doLayout(Container.java:1530)
at java.desktop/java.awt.Container.validateTree(Container.java:1725)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validateTree(Container.java:1734)
at java.desktop/java.awt.Container.validate(Container.java:1660)
at
java.desktop/javax.swing.RepaintManager$3.run(RepaintManager.java:757)
at
java.desktop/javax.swing.RepaintManager$3.run(RepaintManager.java:755)
at
java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at
java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at
java.desktop/javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:754)
at
java.desktop/javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1896)
at
java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at
java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
at
java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at
java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
at
org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
[catch] at
java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at
java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at
java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at
java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at
java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at
java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
```
### Language / Project Type / NetBeans Component
Gradle multi-project
### How to reproduce
Copy the following content in the editor (*.toml) and delete the last brace.
It wont get deleted because of an exception. Worse can happen if the you add or
delete other braces.
```
[plugins]
jooq-codegen = { id = "org.jooq.jooq-codegen-gradle", version.ref="jooq" }
```
### Did this work correctly in an earlier version?
No / Don't know
### Operating System
Windows 10
### JDK
Java 21
### Apache NetBeans packaging
Apache NetBeans binary zip
### Anything else
_No response_
### Are you willing to submit a pull request?
No
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