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Steps to reproduce: 1. Open IDE 2. Click the New File toolbar button (within a project) 3. On the Choose File Type panel of the wizard, choose Java GUI Forms 4. Double click on JApplet Form 5. NPE Occurs (see below). Also note that a file is created in the background, and the Finish button has not been clicked yet. java.lang.NullPointerException at org.netbeans.modules.javacore.JMManager.getResource(JMManager.java:384) at org.netbeans.modules.javacore.api.JavaModel.getResource(JavaModel.java:94) at org.netbeans.modules.form.GandalfPersistenceManager.loadForm(GandalfPersistenceManager.java:258) at org.netbeans.modules.form.FormEditorSupport$3.run(FormEditorSupport.java:543) at org.netbeans.modules.form.FormLAF$1.run(FormLAF.java:58) at org.openide.util.Mutex.doEventAccess(Mutex.java:923) at org.openide.util.Mutex.readAccess(Mutex.java:202) at org.netbeans.modules.form.FormLAF.executeWithLookAndFeel(FormLAF.java:43) at org.netbeans.modules.form.FormEditorSupport.loadFormData(FormEditorSupport.java:541) at org.netbeans.modules.form.FormEditorSupport.loadFormDesigner(FormEditorSupport.java:496) at org.netbeans.modules.form.FormDesigner.componentShowing(FormDesigner.java:844) at org.netbeans.core.multiview.MultiViewPeer.peerComponentShowing(MultiViewPeer.java:160) at org.netbeans.core.multiview.MultiViewCloneableTopComponent.componentShowing(MultiViewCloneableTopComponent.java:107) at org.openide.windows.WindowManager.componentShowing(WindowManager.java:281) at org.netbeans.core.windows.WindowManagerImpl.componentShowing(WindowManagerImpl.java:905) at org.netbeans.core.windows.view.DefaultView.changeGUI(DefaultView.java:160) at org.netbeans.core.windows.ViewRequestor.dispatchRequest(ViewRequestor.java:229) at org.netbeans.core.windows.ViewRequestor.processRequest(ViewRequestor.java:208) at org.netbeans.core.windows.ViewRequestor.postRequest(ViewRequestor.java:148) at org.netbeans.core.windows.ViewRequestor.scheduleRequest(ViewRequestor.java:89) at org.netbeans.core.windows.Central.addModeOpenedTopComponent(Central.java:543) at org.netbeans.core.windows.ModeImpl.addOpenedTopComponent(ModeImpl.java:249) at org.netbeans.core.windows.WindowManagerImpl.topComponentOpen(WindowManagerImpl.java:953) at org.openide.windows.TopComponent.open(TopComponent.java:276) at org.openide.windows.TopComponent.open(TopComponent.java:268) at org.openide.windows.CloneableOpenSupport.openCloneableTopComponent(CloneableOpenSupport.java:164) at org.netbeans.modules.form.FormEditorSupport.openFormEditor(FormEditorSupport.java:128) at org.netbeans.modules.form.FormDataObject$OpenEdit.open(FormDataObject.java:89) at org.openide.actions.OpenAction.performAction(OpenAction.java:54) at org.openide.util.actions.NodeAction$3.run(NodeAction.java:440) at org.openide.util.actions.CallableSystemAction.doPerformAction(CallableSystemAction.java:116) at org.openide.util.actions.NodeAction$DelegateAction.actionPerformed(NodeAction.java:438) at org.openide.explorer.view.ListView.performObjectAt(ListView.java:488) at org.openide.explorer.view.ListView$PopupSupport.mouseClicked(ListView.java:912) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:212) at java.awt.Component.processMouseEvent(Component.java:5103) at java.awt.Component.processEvent(Component.java:4897) at java.awt.Container.processEvent(Container.java:1569) at java.awt.Component.dispatchEventImpl(Component.java:3615) at java.awt.Container.dispatchEventImpl(Container.java:1627) at java.awt.Component.dispatchEvent(Component.java:3477) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3207) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128) at java.awt.Container.dispatchEventImpl(Container.java:1613) at java.awt.Window.dispatchEventImpl(Window.java:1606) at java.awt.Component.dispatchEvent(Component.java:3477) [catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:456) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:141) at java.awt.Dialog$1.run(Dialog.java:540) at java.awt.Dialog.show(Dialog.java:561) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:727) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:770) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:758) at org.openide.util.Mutex.doEventAccess(Mutex.java:923) at org.openide.util.Mutex.readAccess(Mutex.java:158) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:743) at org.openide.loaders.TemplateWizard.instantiateImpl(TemplateWizard.java:448) at org.openide.loaders.TemplateWizard.instantiate(TemplateWizard.java:351) at org.netbeans.modules.project.ui.actions.NewFile.doPerform(NewFile.java:98) at org.netbeans.modules.project.ui.actions.NewFile.actionPerformed(NewFile.java:75) at org.netbeans.modules.project.ui.actions.LookupSensitiveAction.actionPerformed(LookupSensitiveAction.java:69) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1786) at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1839) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:245) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231) at java.awt.Component.processMouseEvent(Component.java:5100) at java.awt.Component.processEvent(Component.java:4897) at java.awt.Container.processEvent(Container.java:1569) at java.awt.Component.dispatchEventImpl(Component.java:3615) at java.awt.Container.dispatchEventImpl(Container.java:1627) at java.awt.Component.dispatchEvent(Component.java:3477) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128) at java.awt.Container.dispatchEventImpl(Container.java:1613) at java.awt.Window.dispatchEventImpl(Window.java:1606) at java.awt.Component.dispatchEvent(Component.java:3477) at java.awt.EventQueue.dispatchEvent(EventQueue.java:456) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137) at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
> 5. NPE Occurs (see below). Also note that a file > is created in the background, and the Finish > button has not been clicked yet. I fixed NPE. But the file should not be created on background if Finish button has not been clicked. Reassigning to project for evaluation. Checking in JMManager.java; /cvs/java/javacore/src/org/netbeans/modules/javacore/JMManager.java,v <-- JMManager.java new revision: 1.51; previous revision: 1.50 done
Not sure what "file was created in the background" means in this context. What file was created where? Had you filled in a name and location yet?
Let me clarify: When the NPE occured, there was a new editor tab containing a file called "JApplet" as I was not yet asked to supply the class name (this is the next wizard step *after* the NPE occurs). The file was not physically created, so after clearing the NPE you can cancel the wizard and close the tab--no file will exist on the disk. However, given that you cancelled the wizard, it seems very odd that a tab for the file would still exist (it should be closed automatically).
It was calling the default action on the form templates. Disabled the double-click in templates list. Checking in projects/projectui/src/org/netbeans/modules/project/ui/TemplatesPanelGUI.java; /cvs/projects/projectui/src/org/netbeans/modules/project/ui/TemplatesPanelGUI.java,v <-- TemplatesPanelGUI.java new revision: 1.29; previous revision: 1.28 done
Shouldn't double-click just advance to the second wizard panel?
I think I saw a user during a usability study who expected that. Seems reasonable to me as well.
Sure. Wanted to do but gave up after very short consultation with Jirka rechtacek and Tomas Zezua :-)