java.lang.AssertionError at org.netbeans.spi.project.support.ant.ProjectProperties$PP.write(ProjectProperties.java:219) at org.netbeans.spi.project.support.ant.ProjectProperties.write(ProjectProperties.java:134) at org.netbeans.spi.project.support.ant.AntProjectHelper.save(AntProjectHelper.java:595) at org.netbeans.spi.project.support.ant.AntProjectHelper.access$100(AntProjectHelper.java:102) at org.netbeans.spi.project.support.ant.AntProjectHelper$1.save(AntProjectHelper.java:140) at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.saveProject(AntBasedProjectFactorySingleton.java:337) at org.netbeans.api.project.ProjectManager$6.run(ProjectManager.java:643) at org.netbeans.api.project.ProjectManager$6.run(ProjectManager.java:632) at org.openide.util.Mutex.writeAccess(Mutex.java:433) at org.netbeans.api.project.ProjectManager.saveProject(ProjectManager.java:632) at org.netbeans.modules.j2ee.sun.ide.j2ee.BuildExtension.abbreviateBuildXml(BuildExtension.java:146) at org.netbeans.modules.j2ee.sun.ide.j2ee.ModuleConfigurationImpl$StaticBuildExtensionListener.rewriteBuildImpl(ModuleConfigurationImpl.java:356) at org.netbeans.modules.j2ee.sun.ide.j2ee.ModuleConfigurationImpl$StaticBuildExtensionListener.access$100(ModuleConfigurationImpl.java:316) at org.netbeans.modules.j2ee.sun.ide.j2ee.ModuleConfigurationImpl$StaticBuildExtensionListener$1.run(ModuleConfigurationImpl.java:412) at org.openide.util.Mutex.leaveImpl(Mutex.java:902) at org.openide.util.Mutex.leave(Mutex.java:835) at org.openide.util.Mutex.readAccess(Mutex.java:287) at org.netbeans.spi.project.support.ant.ProjectProperties$PP.fireChange(ProjectProperties.java:339) at org.netbeans.spi.project.support.ant.ProjectProperties$PP.diskChange(ProjectProperties.java:358) at org.netbeans.spi.project.support.ant.ProjectProperties$PP.fileChanged(ProjectProperties.java:373) at org.openide.filesystems.FileUtil$Holder.fileChanged(FileUtil.java:345) at org.openide.filesystems.FCLSupport$DispatchEventWrapper.dispatchEventImpl(FCLSupport.java:136) 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:1014) 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.ProjectProperties$PP.write(ProjectProperties.java:228) at org.netbeans.spi.project.support.ant.ProjectProperties.write(ProjectProperties.java:134) at org.netbeans.spi.project.support.ant.AntProjectHelper.save(AntProjectHelper.java:595) at org.netbeans.spi.project.support.ant.AntProjectHelper.access$100(AntProjectHelper.java:102) at org.netbeans.spi.project.support.ant.AntProjectHelper$1.save(AntProjectHelper.java:140) at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.saveProject(AntBasedProjectFactorySingleton.java:337) 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.web.project.ui.customizer.WebProjectProperties$5.run(WebProjectProperties.java:829) at org.openide.util.Mutex.postRequest(Mutex.java:1251) at org.openide.util.Mutex.postWriteRequest(Mutex.java:582) at org.netbeans.modules.web.project.ui.customizer.WebProjectProperties.setServerInstance(WebProjectProperties.java:819) at org.netbeans.modules.web.project.WebProject$ProjectOpenedHookImpl.projectOpened(WebProject.java:896) at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:81) at org.netbeans.spi.project.ui.support.UILookupMergerSupport$OpenHookImpl.projectOpened(UILookupMergerSupport.java:193) at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:81) at org.netbeans.modules.project.ui.OpenProjectList.notifyOpened(OpenProjectList.java:1059) at org.netbeans.modules.project.ui.OpenProjectList.doOpenProject(OpenProjectList.java:1110) at org.netbeans.modules.project.ui.OpenProjectList.doOpen(OpenProjectList.java:663) at org.netbeans.modules.project.ui.OpenProjectList.open(OpenProjectList.java:576) at org.netbeans.modules.project.ui.OpenProjectList.open(OpenProjectList.java:512) at org.netbeans.modules.project.ui.OpenProjectList.open(OpenProjectList.java:508) at org.netbeans.modules.project.ui.OpenProjectsTrampolineImpl.openAPI(OpenProjectsTrampolineImpl.java:72) at org.netbeans.api.project.ui.OpenProjects.open(OpenProjects.java:169) at org.netbeans.modules.project.uiapi.DefaultProjectOperationsImplementation$8.run(DefaultProjectOperationsImplementation.java:760) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:461) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:180) at java.awt.Dialog$1.run(Dialog.java:535) at java.awt.Dialog$2.run(Dialog.java:565) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.awt.Dialog.show(Dialog.java:563) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:985) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1019) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1007) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:115) at org.openide.util.Mutex.doEventAccess(Mutex.java:1355) at org.openide.util.Mutex.readAccess(Mutex.java:268) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:992) at java.awt.Component.show(Component.java:1302) at java.awt.Component.setVisible(Component.java:1255) at org.netbeans.modules.project.uiapi.DefaultProjectOperationsImplementation.showConfirmationDialog(DefaultProjectOperationsImplementation.java:688) at org.netbeans.modules.project.uiapi.DefaultProjectOperationsImplementation.copyProject(DefaultProjectOperationsImplementation.java:233) at org.netbeans.spi.project.ui.support.DefaultProjectOperations.performDefaultCopyOperation(DefaultProjectOperations.java:108) at org.netbeans.modules.web.project.WebActionProvider.invokeAction(WebActionProvider.java:199) at org.netbeans.modules.project.ui.actions.ProjectAction.actionPerformed(ProjectAction.java:129) at org.netbeans.modules.project.ui.actions.LookupSensitiveAction.actionPerformed(LookupSensitiveAction.java:166) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1882) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2202) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.AbstractButton.doClick(AbstractButton.java:334) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1051) at apple.laf.CUIAquaMenuItem.doClick(CUIAquaMenuItem.java:119) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1092) at java.awt.Component.processMouseEvent(Component.java:5602) at javax.swing.JComponent.processMouseEvent(JComponent.java:3135) at java.awt.Component.processEvent(Component.java:5367) at java.awt.Container.processEvent(Container.java:2010) at java.awt.Component.dispatchEventImpl(Component.java:4068) at java.awt.Container.dispatchEventImpl(Container.java:2068) at java.awt.Component.dispatchEvent(Component.java:3903) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4256) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3936) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3866) at java.awt.Container.dispatchEventImpl(Container.java:2054) at java.awt.Window.dispatchEventImpl(Window.java:1801) at java.awt.Component.dispatchEvent(Component.java:3903) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)