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java.lang.AssertionError: Need to normalize /Users/Gleb/Dropbox/Projects/Project1Task2/build/web/error.jsp(class java.io.File) was /Users/Gleb/Dropbox/Projects/Project1Task2/build/web/Error.jsp(class java.io.File) at org.openide.filesystems.FileUtil.assertNormalized(FileUtil.java:153) at org.openide.filesystems.FileUtil.toFile(FileUtil.java:829) at org.netbeans.modules.web.project.WebProject$CopyOnSaveSupport.handleCopyFileToDestDir(WebProject.java:2011) at org.netbeans.modules.web.project.WebProject$CopyOnSaveSupport.handleCopyFileToDestDir(WebProject.java:1964) at org.netbeans.modules.web.project.WebProject$CopyOnSaveSupport.fileChanged(WebProject.java:1761) at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObjectKeeper.fileChanged(FileObjectKeeper.java:323) at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:178) at org.openide.filesystems.FCLSupport$DispatchEventWrapperSingle.dispatchAllEventsSync(FCLSupport.java:224) at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEvent(FCLSupport.java:137) at org.openide.filesystems.FCLSupport.dispatchEvent(FCLSupport.java:105) at org.openide.filesystems.FileObject$ED.dispatch(FileObject.java:1318) at org.openide.filesystems.EventControl.invokeDispatchers(EventControl.java:213) at org.openide.filesystems.EventControl.exitAtomicAction(EventControl.java:188) at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:129) at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:609) at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:419) at org.openide.text.DataEditorSupport.saveDocument(DataEditorSupport.java:601) at org.netbeans.modules.web.core.jsploader.BaseJspEditorSupport.saveDocument(BaseJspEditorSupport.java:360) at org.netbeans.modules.web.core.jsploader.BaseJspEditorSupport.saveDocument(BaseJspEditorSupport.java:349) at org.netbeans.modules.web.core.jsploader.BaseJspEditorSupport$5.save(BaseJspEditorSupport.java:318) at org.openide.actions.SaveAction.performAction(SaveAction.java:132) at org.openide.actions.SaveAction.performAction(SaveAction.java:102) at org.openide.actions.SaveAction$Delegate.actionPerformed(SaveAction.java:249) at org.openide.awt.ContextAction$Performer.actionPerformed(ContextAction.java:231) at org.openide.awt.ContextManager.actionPerformed(ContextManager.java:257) at org.openide.awt.ContextAction.actionPerformed(ContextAction.java:109) at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:93) at org.openide.util.actions.ActionInvoker$ActionRunnable.actionPerformed(ActionInvoker.java:162) at org.netbeans.core.ModuleActions.invokeAction(ModuleActions.java:109) at org.netbeans.modules.openide.actions.ActionsBridgeImpl.invokeAction(ActionsBridgeImpl.java:60) at org.openide.util.actions.ActionInvoker$ActionRunnable.doRun(ActionInvoker.java:153) at org.openide.util.actions.ActionInvoker$2.run(ActionInvoker.java:110) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033) Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to at org.openide.util.RequestProcessor.post(RequestProcessor.java:419) at org.openide.util.actions.ActionInvoker.doPerformAction(ActionInvoker.java:114) at org.openide.util.actions.ActionInvoker.invokeAction(ActionInvoker.java:99) at org.openide.awt.GeneralAction$BaseDelAction.actionPerformed(GeneralAction.java:234) at org.openide.windows.TopComponent.processKeyBinding(TopComponent.java:1176) at javax.swing.JComponent.processKeyBindings(JComponent.java:2939) at javax.swing.JComponent.processKeyEvent(JComponent.java:2841) at java.awt.Component.processEvent(Component.java:6282) 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.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1895) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:762) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1027) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:899) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:727) at java.awt.Component.dispatchEventImpl(Component.java:4731) at java.awt.Container.dispatchEventImpl(Container.java:2287) at java.awt.Window.dispatchEventImpl(Window.java:2719) at java.awt.Component.dispatchEvent(Component.java:4687) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735) at java.awt.EventQueue.access$200(EventQueue.java:103) at java.awt.EventQueue$3.run(EventQueue.java:694) at java.awt.EventQueue$3.run(EventQueue.java:692) at java.security.AccessController.doPrivileged(Native Method) 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:708) at java.awt.EventQueue$4.run(EventQueue.java:706) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:705) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) [catch] at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Please provide thread dump, thanks