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For details about this issue see issue #151498. java.lang.IllegalStateException: Should not acquire Children.MUTEX while holding ProjectManager.mutex() at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1808) at org.openide.util.Mutex.postRequest(Mutex.java:1245) at org.openide.util.Mutex.postRequest(Mutex.java:1209) at org.openide.util.Mutex.postWriteRequest(Mutex.java:582) at org.openide.nodes.Children$Keys.applyKeys(Children.java:1513) at org.openide.nodes.Children$Keys.setKeys(Children.java:1457) at org.netbeans.spi.java.project.support.ui.PackageViewChildren.refreshKeys(PackageViewChildren.java:244) at org.netbeans.spi.java.project.support.ui.PackageViewChildren.fileFolderCreated(PackageViewChildren.java:396) Caused: java.lang.reflect.InvocationTargetException at sun.reflect.GeneratedMethodAccessor60.invoke(GeneratedMethodAccessor60.java:0) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:451) Caused: java.lang.reflect.UndeclaredThrowableException at $Proxy1.fileFolderCreated(.java:0) at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:133) at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:122) at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:99) at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:1052) at org.openide.filesystems.EventControl.invokeDispatchers(EventControl.java:203) at org.openide.filesystems.EventControl.exitAtomicAction(EventControl.java:177) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:122) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:509) at org.netbeans.spi.project.support.ant.AntProjectHelper.runSaveAA(AntProjectHelper.java:318) at org.netbeans.spi.project.support.ant.AntProjectHelper.saveXml(AntProjectHelper.java:334) at org.netbeans.spi.project.support.ant.AntProjectHelper.save(AntProjectHelper.java:606) at org.netbeans.spi.project.support.ant.AntProjectHelper.access$100(AntProjectHelper.java:103) at org.netbeans.spi.project.support.ant.AntProjectHelper$1.save(AntProjectHelper.java:141) at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.saveProject(AntBasedProjectFactorySingleton.java:360) at org.netbeans.api.project.ProjectManager$6.run(ProjectManager.java:643) at org.netbeans.api.project.ProjectManager$6.run(ProjectManager.java:632) at org.openide.util.Mutex.writeAccess(Mutex.java:433) at org.netbeans.api.project.ProjectManager.saveProject(ProjectManager.java:632) at org.netbeans.modules.project.ui.OpenProjectList.close(OpenProjectList.java:793) at org.netbeans.modules.project.ui.actions.CloseProject.actionPerformed(CloseProject.java:73) at org.netbeans.modules.project.ui.actions.LookupSensitiveAction.actionPerformed(LookupSensitiveAction.java:166) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) ...
Fixed. http://hg.netbeans.org/core-main/rev/03e06da26d49
Integrated into 'main-golden', will be available in build *200911060201* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main/rev/03e06da26d49 User: Milan Kubec <mkubec@netbeans.org> Log: #175997: refreshKeys should be async to avoid possible deadlock
Had to be rollbacked, for details see issue #177110.
Integrated into 'main-golden', will be available in build *200911191401* on http://bits.netbeans.org/dev/nightly/ (upload may still be in progress) Changeset: http://hg.netbeans.org/main/rev/8497a06e01fd User: Milan Kubec <mkubec@netbeans.org> Log: #177110: empty packages visible in Projects view; rollback of #175997 fix
Bug prior to 7.0, not touched for the last 2 years --> P4.
Already fixed f3451ec407ba.