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This bug was originally marked as duplicate of bug 210562, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE 7.4 (Build 201310111528) VM: OpenJDK 64-Bit Server VM, 23.7-b01, OpenJDK Runtime Environment, 1.7.0_25-b30 OS: Linux User Comments: fedetxf: Running Tomcat app. Stacktrace: java.util.ConcurrentModificationException at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1115) at java.util.TreeMap$KeyIterator.next(TreeMap.java:1169) at java.util.AbstractCollection.toArray(AbstractCollection.java:141) at java.util.Collections$UnmodifiableCollection.toArray(Collections.java:1058) at java.util.ArrayList.addAll(ArrayList.java:530) at org.netbeans.modules.db.explorer.node.NodeRegistry.getNodes(NodeRegistry.java:171)
Created attachment 141871 [details] stacktrace
Hello, thank you for the report. Are you able to reproduce? If yes, please describe the way how to. Thanks
Sadly, no. The error popped up while I was doing build with Maven which I do many times a day, but it never appeared again.
Decreasing priority. If somebody is able to reproduce and describe steps to do it, please increase back to P3.