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This issue was reported manually by tim_sa. It already has 1 duplicates Build: NetBeans IDE Dev (Build 201109040600) VM: Java HotSpot(TM) 64-Bit Server VM, 21.0-b17, Java(TM) SE Runtime Environment, 1.7.0-b147 OS: Windows 7 User Comments: tim_sa: ran a clean & build on a maven webapp Stacktrace: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry(HashMap.java:806) at java.util.HashMap$ValueIterator.next(HashMap.java:835) at org.netbeans.modules.maven.problems.BatchProblemNotifier.resolved(BatchProblemNotifier.java:135) at org.netbeans.modules.maven.problems.ProblemReporterImpl$2.fileDataCreated(ProblemReporterImpl.java:113) at org.openide.filesystems.FileUtil$Holder.someChange(FileUtil.java:463) at org.openide.filesystems.FileUtil$Holder.fileFolderCreated(FileUtil.java:522)
Created attachment 110406 [details] stacktrace
core-main #b226a1ad92eb
Integrated into 'main-golden' Changeset: http://hg.netbeans.org/main-golden/rev/b226a1ad92eb User: Jesse Glick <jglick@netbeans.org> Log: #201645: java.util.ConcurrentModificationException at java.util.HashMap$HashIterator.nextEntry