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| Summary: | CMEs from LightAttrList | ||
|---|---|---|---|
| Product: | java | Reporter: | _ tboudreau <tboudreau> |
| Component: | Unsupported | Assignee: | issues@java <issues> |
| Status: | RESOLVED INVALID | ||
| Severity: | blocker | Keywords: | RANDOM, THREAD |
| Priority: | P3 | ||
| Version: | 4.x | ||
| Hardware: | All | ||
| OS: | All | ||
| Issue Type: | DEFECT | Exception Reporter: | |
This seems to be a bug in the javagator - in JUtils.getClassMembers. Make sure you do use the iterator in a locked transaction to avoid concurrent modifications. Or you can make a local copy of the list you want to iterate through. Okay, Jan Becicka had suggested to me that the CMEs were a bug. Important question: For what operations do I need to acquire the transaction lock, and how do I acquire it? I put Javagator together mostly by reading the sources for whatever I was dealing with, and bits of SourceChildren in the Java module. Is this documented somewhere? |
Happens once in a while on startup when using the Navigator/ Javagator modules - sometimes the stack trace is the Navigator module's code, sometimes it is editor fold computation (both will have threads that have requested structural information about whatever is open in the editor, and the classpath scanner is usually [always?] also running at the time this is thrown). java.lang.RuntimeException at org.netbeans.modules.javacore.jmiimpl.javamodel.LightAttrList.s etInnerList(LightAttrList.java:88) at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl. reinitClassifiers(ResourceImpl.java:144) at org.netbeans.modules.javacore.scanning.JavaUpdater.makeIndex (JavaUpdater.java:243) at org.netbeans.modules.javacore.scanning.JavaUpdater.computeIn dex(JavaUpdater.java:58) at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl. directUpdate(ResourceImpl.java:536) at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl. checkUpToDate(ResourceImpl.java:479) at org.netbeans.modules.javacore.jmiimpl.javamodel.ResourceImpl. updateFromDataObject(ResourceImpl.java:385) at org.netbeans.modules.javacore.ExclusiveMutex.parseIfNeeded(E xclusiveMutex.java:218) at org.netbeans.modules.javacore.ExclusiveMutex.enter(ExclusiveM utex.java:137) at org.netbeans.mdr.NBMDRepositoryImpl.beginTrans(NBMDReposi toryImpl.java:232) [catch] at org.netbeans.modules.javacore.parser.MDRParser$1.run(MDRPar ser.java:110) at org.openide.util.Task.run(Task.java:136) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.ja va:330) at org.openide.util.RequestProcessor$Processor.run(RequestProces sor.java:686) *********** Exception occurred ************ at 1:08 AM on Sep 29, 2004 Annotation: Exception occurred in Request Processor java.util.ConcurrentModificationException at org.netbeans.modules.javacore.jmiimpl.javamodel.LightAttrList$ LightAttrListIterator.testModCount(LightAttrList.java:371) at org.netbeans.modules.javacore.jmiimpl.javamodel.LightAttrList$ LightAttrListIterator.hasNext(LightAttrList.java:422) at org.netbeans.modules.javagator.JUtils.getClassMembers(JUtils.ja va:880) at org.netbeans.modules.javagator.ClassMemberModel.loadConten ts(ClassMemberModel.java:230) at org.netbeans.spi.navigator.ListModelSupport2$Loader.run(ListM odelSupport2.java:947) at org.openide.util.Task.run(Task.java:136) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.ja va:330) [catch] at org.openide.util.RequestProcessor$Processor.run(RequestProces sor.java:686) cancelled or inactive - will not load contents - cancelled false active false ListModelSupport2.Set contents 4 items on Roots@9226151 for TME2 for B State Change - Model is now ready? true