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This issue was reported manually by vv159170. It already has 4 duplicates Build: NetBeans IDE 7.0 M2 (Build 201010151251) VM: Java HotSpot(TM) 64-Bit Server VM, 17.1-b03-307, Java(TM) SE Runtime Environment, 1.6.0_22-b04-307-10M3261 OS: Mac OS X User Comments: GUEST: Trying to remove folder Stacktrace: java.lang.AssertionError at org.netbeans.modules.cnd.modelimpl.csm.NamespaceImpl.removeNestedNamespace(NamespaceImpl.java:378) at org.netbeans.modules.cnd.modelimpl.csm.NamespaceImpl.addRemoveInParentNamespace(NamespaceImpl.java:547) at org.netbeans.modules.cnd.modelimpl.csm.NamespaceImpl.removeNamespaceDefinition(NamespaceImpl.java:571) at org.netbeans.modules.cnd.modelimpl.csm.NamespaceDefinitionImpl.dispose(NamespaceDefinitionImpl.java:238) at org.netbeans.modules.cnd.modelimpl.csm.core.Utils.disposeAll(Utils.java:134) at org.netbeans.modules.cnd.modelimpl.csm.core.FileImpl.disposeAll(FileImpl.java:763)
Created attachment 103814 [details] stacktrace
let's evaluate exceptions as P2 issues
http://hg.netbeans.org/cnd-main/rev/e1f9ea8f37db this was because we called FileImpl.dispose at the same time from different threads (project notification, file listener on file delete)
Integrated into 'main-golden', will be available in build *201012290001* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main/rev/e1f9ea8f37db User: Vladimir Voskresensky <vv159170@netbeans.org> Log: fixed #193115 - AssertionError at org.netbeans.modules.cnd.modelimpl.csm.NamespaceImpl.removeNestedNamespace