iajn opened a new issue, #8510:
URL: https://github.com/apache/netbeans/issues/8510
### Apache NetBeans version
Apache NetBeans 25
### What happened
NetBeans IDE ends up deadlocked randomly, while editing layer.xml using the
Projects view while the file is open in the editor.
### Language / Project Type / NetBeans Component
NetBeans Platform Application, Maven
### How to reproduce
1. Create a NetBeans Platform application
2. Add a layer.xml file to a module (e.g. branding) using the wizards
3. In the Projects view, open module -> Important Files -> XML Layer ->
<this layer in context>
4. Start deleting stuff while the layer.xml file is open in the editor
5. Randomly, the IDE ends up deadlocked
Based on the stack trace it looks like the layer.xml file being open in the
editor is the important factor in this:
```
"AWT-EventQueue-0" #52 [12160] prio=6 os_prio=0 cpu=28000.00ms
elapsed=1538.13s tid=0x000001d35b221040 nid=12160 in Object.wait()
[0x0000008c9abfe000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait0(java.base@23.0.2/Native Method)
- waiting on <no object reference available>
at java.lang.Object.wait(java.base@23.0.2/Object.java:378)
at java.lang.Object.wait(java.base@23.0.2/Object.java:352)
at
javax.swing.text.AbstractDocument.readLock(java.desktop@23.0.2/AbstractDocument.java:1421)
- locked <0x000000060f4becb8> (a
org.netbeans.modules.editor.NbEditorDocument)
at
org.netbeans.api.editor.caret.EditorCaret$7.run(EditorCaret.java:1922)
at
org.netbeans.api.editor.caret.EditorCaret.dispatchUpdate(EditorCaret.java:1938)
at
org.netbeans.api.editor.caret.EditorCaret.runTransaction(EditorCaret.java:1671)
at
org.netbeans.api.editor.caret.EditorCaret.setDot(EditorCaret.java:577)
at
org.netbeans.api.editor.caret.EditorCaret.setDot(EditorCaret.java:546)
at
javax.swing.text.JTextComponent.setCaretPosition(java.desktop@23.0.2/JTextComponent.java:1687)
at
org.openide.text.DocumentOpenClose$DocumentLoad$1.run(DocumentOpenClose.java:793)
at
org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
at org.openide.util.lookup.Lookups.executeWith(Lookups.java:287)
at
org.netbeans.modules.openide.util.NbMutexEventProvider$Event.lambda$doEventRequest$1(NbMutexEventProvider.java:112)
at
org.netbeans.modules.openide.util.NbMutexEventProvider$Event$$Lambda/0x000001d3112659b8.run(Unknown
Source)
at
java.awt.event.InvocationEvent.dispatch(java.desktop@23.0.2/InvocationEvent.java:318)
at
java.awt.EventQueue.dispatchEventImpl(java.desktop@23.0.2/EventQueue.java:773)
at java.awt.EventQueue$4.run(java.desktop@23.0.2/EventQueue.java:720)
at java.awt.EventQueue$4.run(java.desktop@23.0.2/EventQueue.java:714)
at
java.security.AccessController.executePrivileged(java.base@23.0.2/AccessController.java:778)
at
java.security.AccessController.doPrivileged(java.base@23.0.2/AccessController.java:400)
at
java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(java.base@23.0.2/ProtectionDomain.java:87)
at
java.awt.EventQueue.dispatchEvent(java.desktop@23.0.2/EventQueue.java:742)
at
org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
at
java.awt.EventDispatchThread.pumpOneEventForFilters(java.desktop@23.0.2/EventDispatchThread.java:203)
at
java.awt.EventDispatchThread.pumpEventsForFilter(java.desktop@23.0.2/EventDispatchThread.java:124)
at
java.awt.EventDispatchThread.pumpEventsForHierarchy(java.desktop@23.0.2/EventDispatchThread.java:113)
at
java.awt.EventDispatchThread.pumpEvents(java.desktop@23.0.2/EventDispatchThread.java:109)
at
java.awt.EventDispatchThread.pumpEvents(java.desktop@23.0.2/EventDispatchThread.java:101)
at
java.awt.EventDispatchThread.run(java.desktop@23.0.2/EventDispatchThread.java:90)
```
Full thread dump:
[threaddump-1747609897170.txt](https://github.com/user-attachments/files/20275462/threaddump-1747609897170.txt)
### Did this work correctly in an earlier version?
No / Don't know
### Operating System
Windows 11
### JDK
Java: version 23.0.2 2025-01-21, vendor Azul Systems, Inc.
### Apache NetBeans packaging
Third-party package
### Anything else
Occurs randomly, but pretty consistently at least on my system. I remember
having this issue like a year ago already, so it's been there for a while.
### Are you willing to submit a pull request?
No
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