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1. I created a project 2. I closed the project and removed the project directory. 3. I want to create the same project in the same directory, the error occurs: java.lang.reflect.UndeclaredThrowableException at $Proxy14.actionPerformed(Unknown Source) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:377) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:232) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:5999) at javax.swing.JComponent.processMouseEvent(JComponent.java:3240) at java.awt.Component.processEvent(Component.java:5764) at java.awt.Container.processEvent(Container.java:1984) at java.awt.Component.dispatchEventImpl(Component.java:4407) at java.awt.Container.dispatchEventImpl(Container.java:2042) at java.awt.Component.dispatchEvent(Component.java:4237) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4248) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3912) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3842) at java.awt.Container.dispatchEventImpl(Container.java:2028) at java.awt.Window.dispatchEventImpl(Window.java:2405) at java.awt.Component.dispatchEvent(Component.java:4237) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:600) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:177) at java.awt.Dialog$1.run(Dialog.java:1039) at java.awt.Dialog$2.run(Dialog.java:1085) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Dialog.show(Dialog.java:1083) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:816) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:859) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:847) at org.openide.util.Mutex$1.run(Mutex.java:1194) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199) at java.awt.EventQueue.dispatchEvent(EventQueue.java:598) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:589) at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:416) ... 39 more Caused by: java.lang.IllegalArgumentException: Already a project in MasterFileObject@13887c2[D:/develop/lok] at org.netbeans.spi.project.support.ant.ProjectGenerator$1.run(ProjectGenerator.java:87) at org.openide.util.Mutex.writeAccess(Mutex.java:356) at org.netbeans.spi.project.support.ant.ProjectGenerator.createProject0(ProjectGenerator.java:84) at org.netbeans.spi.project.support.ant.ProjectGenerator.createProject(ProjectGenerator.java:79) at org.netbeans.modules.java.j2seproject.J2SEProjectGenerator.createProject(J2SEProjectGenerator.java:164) at org.netbeans.modules.java.j2seproject.J2SEProjectGenerator.createProject(J2SEProjectGenerator.java:69) at org.netbeans.modules.java.j2seproject.ui.wizards.NewJ2SEProjectWizardIterator.instantiate(NewJ2SEProjectWizardIterator.java:124) at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:955) at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:543) at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:382) at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:224) at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1203) at org.openide.WizardDescriptor.access$1600(WizardDescriptor.java:76) at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:1682) at org.openide.WizardDescriptor$Listener$2.run(WizardDescriptor.java:1722) at org.openide.WizardDescriptor$5.run(WizardDescriptor.java:1125) at org.openide.WizardDescriptor.lazyValidate(WizardDescriptor.java:1164) at org.openide.WizardDescriptor.access$1100(WizardDescriptor.java:76) at org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:1729) ... 44 more ==> java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:589) at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:416) at $Proxy14.actionPerformed(Unknown Source) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:377) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:232) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:5999) at javax.swing.JComponent.processMouseEvent(JComponent.java:3240) at java.awt.Component.processEvent(Component.java:5764) at java.awt.Container.processEvent(Container.java:1984) at java.awt.Component.dispatchEventImpl(Component.java:4407) at java.awt.Container.dispatchEventImpl(Container.java:2042) at java.awt.Component.dispatchEvent(Component.java:4237) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4248) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3912) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3842) at java.awt.Container.dispatchEventImpl(Container.java:2028) at java.awt.Window.dispatchEventImpl(Window.java:2405) at java.awt.Component.dispatchEvent(Component.java:4237) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:600) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:177) at java.awt.Dialog$1.run(Dialog.java:1039) at java.awt.Dialog$2.run(Dialog.java:1085) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Dialog.show(Dialog.java:1083) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:816) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:859) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:847) at org.openide.util.Mutex$1.run(Mutex.java:1194) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199) at java.awt.EventQueue.dispatchEvent(EventQueue.java:598) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121) Caused by: java.lang.IllegalArgumentException: Already a project in MasterFileObject@13887c2[D:/develop/lok] at org.netbeans.spi.project.support.ant.ProjectGenerator$1.run(ProjectGenerator.java:87) at org.openide.util.Mutex.writeAccess(Mutex.java:356) at org.netbeans.spi.project.support.ant.ProjectGenerator.createProject0(ProjectGenerator.java:84) at org.netbeans.spi.project.support.ant.ProjectGenerator.createProject(ProjectGenerator.java:79) at org.netbeans.modules.java.j2seproject.J2SEProjectGenerator.createProject(J2SEProjectGenerator.java:164) at org.netbeans.modules.java.j2seproject.J2SEProjectGenerator.createProject(J2SEProjectGenerator.java:69) at org.netbeans.modules.java.j2seproject.ui.wizards.NewJ2SEProjectWizardIterator.instantiate(NewJ2SEProjectWizardIterator.java:124) at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:955) at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:543) at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:382) at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:224) at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1203) at org.openide.WizardDescriptor.access$1600(WizardDescriptor.java:76) at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:1682) at org.openide.WizardDescriptor$Listener$2.run(WizardDescriptor.java:1722) at org.openide.WizardDescriptor$5.run(WizardDescriptor.java:1125) at org.openide.WizardDescriptor.lazyValidate(WizardDescriptor.java:1164) at org.openide.WizardDescriptor.access$1100(WizardDescriptor.java:76) at org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:1729) ... 44 more ==> java.lang.IllegalArgumentException: Already a project in MasterFileObject@13887c2[D:/develop/lok] at org.netbeans.spi.project.support.ant.ProjectGenerator$1.run(ProjectGenerator.java:87) at org.openide.util.Mutex.writeAccess(Mutex.java:356) at org.netbeans.spi.project.support.ant.ProjectGenerator.createProject0(ProjectGenerator.java:84) at org.netbeans.spi.project.support.ant.ProjectGenerator.createProject(ProjectGenerator.java:79) at org.netbeans.modules.java.j2seproject.J2SEProjectGenerator.createProject(J2SEProjectGenerator.java:164) at org.netbeans.modules.java.j2seproject.J2SEProjectGenerator.createProject(J2SEProjectGenerator.java:69) at org.netbeans.modules.java.j2seproject.ui.wizards.NewJ2SEProjectWizardIterator.instantiate(NewJ2SEProjectWizardIterator.java:124) at org.openide.loaders.TemplateWizard$InstantiatingIteratorBridge.instantiate(TemplateWizard.java:955) at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:543) at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:382) at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:224) at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1203) at org.openide.WizardDescriptor.access$1600(WizardDescriptor.java:76) at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:1682) at org.openide.WizardDescriptor$Listener$2.run(WizardDescriptor.java:1722) at org.openide.WizardDescriptor$5.run(WizardDescriptor.java:1125) at org.openide.WizardDescriptor.lazyValidate(WizardDescriptor.java:1164) at org.openide.WizardDescriptor.access$1100(WizardDescriptor.java:76) at org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:1729) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:589) at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:416) at $Proxy14.actionPerformed(Unknown Source) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:377) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:232) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:5999) at javax.swing.JComponent.processMouseEvent(JComponent.java:3240) at java.awt.Component.processEvent(Component.java:5764) at java.awt.Container.processEvent(Container.java:1984) at java.awt.Component.dispatchEventImpl(Component.java:4407) at java.awt.Container.dispatchEventImpl(Container.java:2042) at java.awt.Component.dispatchEvent(Component.java:4237) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4248) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3912) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3842) at java.awt.Container.dispatchEventImpl(Container.java:2028) at java.awt.Window.dispatchEventImpl(Window.java:2405) at java.awt.Component.dispatchEvent(Component.java:4237) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:600) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:177) at java.awt.Dialog$1.run(Dialog.java:1039) at java.awt.Dialog$2.run(Dialog.java:1085) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Dialog.show(Dialog.java:1083) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:816) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:859) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:847) at org.openide.util.Mutex$1.run(Mutex.java:1194) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199) at java.awt.EventQueue.dispatchEvent(EventQueue.java:598) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160) at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
The version is 5.5 beta2
Checking in src/org/netbeans/modules/java/j2seproject/J2SEProjectGenerator.java; /cvs/java/j2seproject/src/org/netbeans/modules/java/j2seproject/J2SEProjectGenerator.java,v <-- J2SEProjectGenerator.java new revision: 1.49; previous revision: 1.48 done Fixed, but the proposed way how to delete a project is to delete it using "Delete Project" action from the project pop up menu. It is more save, the project is cleaned, closed and freed from ProjectManager.
Integrated into 5.5 Checking in src/org/netbeans/modules/java/j2seproject/J2SEProjectGenerator.java; /cvs/java/j2seproject/src/org/netbeans/modules/java/j2seproject/J2SEProjectGenerator.java,v <-- J2SEProjectGenerator.java new revision: 1.39.2.4.2.2; previous revision: 1.39.2.4.2.1 done