java.lang.AssertionError: Need to normalize C:\Software\NetBeans\dev\201204150400\.!
   at org.openide.filesystems.FileUtil.assertNormalized(FileUtil.java:140)
   at org.openide.filesystems.FileUtil.normalizeFile(FileUtil.java:1742)
   at org.openide.loaders.DataFolder$FolderNode.createNodeTransferable(DataFolder.java:1421)
   at org.openide.loaders.DataFolder$FolderNode.createPasteTypes(DataFolder.java:1402)
   at org.openide.nodes.AbstractNode.getPasteTypes(AbstractNode.java:543)
   at org.openide.nodes.FilterNode.getPasteTypes(FilterNode.java:696)
   at org.netbeans.spi.java.project.support.ui.PackageViewChildren$PackageNode.getPasteTypes(PackageViewChildren.java:798)
   at org.openide.nodes.FilterNode.getPasteTypes(FilterNode.java:696)
   at org.netbeans.modules.openide.explorer.ExplorerActionsImpl.updatePasteTypes(ExplorerActionsImpl.java:355)
   at org.netbeans.modules.openide.explorer.ExplorerActionsImpl.updatePasteAction(ExplorerActionsImpl.java:341)
   at org.netbeans.modules.openide.explorer.ExplorerActionsImpl.updateActions(ExplorerActionsImpl.java:282)
   at org.netbeans.modules.openide.explorer.ExplorerActionsImpl$ActionStateUpdater.run(ExplorerActionsImpl.java:769)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.AssertionError: Need to normalize C:\Software\NetBeans\dev\201204150400\.!
   at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1493)
   at org.netbeans.modules.openide.explorer.ExplorerActionsImpl$ActionStateUpdater.schedule(ExplorerActionsImpl.java:801)
   at org.netbeans.modules.openide.explorer.ExplorerActionsImpl$ActionStateUpdater.propertyChange(ExplorerActionsImpl.java:755)
   at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:196)
   at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
   at org.openide.explorer.ExplorerManager$2.run(ExplorerManager.java:876)
   at org.openide.util.Mutex.doEvent(Mutex.java:1343)
   at org.openide.util.Mutex.readAccess(Mutex.java:350)
   at org.openide.explorer.ExplorerManager.fireInAWT(ExplorerManager.java:873)
   at org.openide.explorer.ExplorerManager$1SetExploredContextAndSelection.fire(ExplorerManager.java:412)
   at org.openide.explorer.ExplorerManager.setExploredContextAndSelection(ExplorerManager.java:419)
   at org.openide.explorer.view.BeanTreeView.selectionChanged(BeanTreeView.java:149)
   at org.openide.explorer.view.TreeView.callSelectionChanged(TreeView.java:849)
   at org.openide.explorer.view.TreeView$TreePropertyListener.run(TreeView.java:1491)
   at org.openide.util.Mutex$1Exec.run(Mutex.java:1246)
   at org.openide.nodes.Children$ProjectManagerDeadlockDetector.execute(Children.java:1920)
   at org.openide.util.Mutex.postRequest(Mutex.java:1252)
   at org.openide.util.Mutex.postRequest(Mutex.java:1215)
   at org.openide.util.Mutex.postReadRequest(Mutex.java:570)
   at org.openide.explorer.view.TreeView$TreePropertyListener.valueChanged(TreeView.java:1460)
   at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:634)
   at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1092)
   at javax.swing.tree.DefaultTreeSelectionModel.addSelectionPaths(DefaultTreeSelectionModel.java:411)
   at javax.swing.tree.DefaultTreeSelectionModel.addSelectionPath(DefaultTreeSelectionModel.java:309)
   at javax.swing.JTree.addSelectionPath(JTree.java:1738)
   at javax.swing.JTree.setExpandedState(JTree.java:3594)
   at javax.swing.JTree.collapsePath(JTree.java:2227)
   at javax.swing.plaf.basic.BasicTreeUI.toggleExpandState(BasicTreeUI.java:2275)
   at javax.swing.plaf.basic.BasicTreeUI.handleExpandControlClick(BasicTreeUI.java:2251)
   at javax.swing.plaf.basic.BasicTreeUI.checkForClickInExpandControl(BasicTreeUI.java:2209)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3578)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(BasicTreeUI.java:3564)
   at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3523)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.Component.processMouseEvent(Component.java:6502)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
   at java.awt.Component.processEvent(Component.java:6270)
   at java.awt.Container.processEvent(Container.java:2229)
   at java.awt.Component.dispatchEventImpl(Component.java:4861)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4832)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4489)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4422)
   at java.awt.Container.dispatchEventImpl(Container.java:2273)
   at java.awt.Window.dispatchEventImpl(Window.java:2713)
   at java.awt.Component.dispatchEvent(Component.java:4687)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:707)
   at java.awt.EventQueue.access$000(EventQueue.java:101)
   at java.awt.EventQueue$3.run(EventQueue.java:666)
   at java.awt.EventQueue$3.run(EventQueue.java:664)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
   at java.awt.EventQueue$4.run(EventQueue.java:680)
   at java.awt.EventQueue$4.run(EventQueue.java:678)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:677)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)