Community
Participate
Working Groups
Whenever the tomcat server needs to write to the console, an error dialog appears, with the text 'Error'. The following error is found in the error log. The other uses of console are not affected. -- Error Log -- Date: Fri Jan 18 18:05:25 EET 2008 Message: An unexpected exception was thrown. Severity: Error Plugin ID: org.eclipse.ui.workbench Stack Trace: java.lang.NullPointerException at org.eclipse.ui.part.PageBookView.removePage(PageBookView.java:826) at org.eclipse.ui.part.PageBookView.dispose(PageBookView.java:506) at org.eclipse.ui.internal.console.ConsoleView.dispose(ConsoleView.java:336) at org.eclipse.ui.internal.WorkbenchPartReference.doDisposePart(WorkbenchPartReference.java:720) at org.eclipse.ui.internal.ViewReference.doDisposePart(ViewReference.java:127) at org.eclipse.ui.internal.WorkbenchPartReference.dispose(WorkbenchPartReference.java:671) at org.eclipse.ui.internal.WorkbenchPage$6.run(WorkbenchPage.java:1693) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.core.runtime.Platform.run(Platform.java:857) at org.eclipse.ui.internal.WorkbenchPage.dispose(WorkbenchPage.java:1688) at org.eclipse.ui.internal.WorkbenchWindow.closeAllPages(WorkbenchWindow.java:825) at org.eclipse.ui.internal.WorkbenchWindow.hardClose(WorkbenchWindow.java:1559) at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:699) at org.eclipse.ui.internal.WorkbenchWindow.access$0(WorkbenchWindow.java:675) at org.eclipse.ui.internal.WorkbenchWindow$2.run(WorkbenchWindow.java:790) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:788) at org.eclipse.jface.window.WindowManager.close(WindowManager.java:109) at org.eclipse.ui.internal.Workbench$15.run(Workbench.java:908) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37) at org.eclipse.ui.internal.Workbench.busyClose(Workbench.java:905) at org.eclipse.ui.internal.Workbench.access$15(Workbench.java:834) at org.eclipse.ui.internal.Workbench$22.run(Workbench.java:1078) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.ui.internal.Workbench.close(Workbench.java:1076) at org.eclipse.ui.internal.Workbench.close(Workbench.java:1048) at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:696) at org.eclipse.ui.internal.WorkbenchWindow.access$0(WorkbenchWindow.java:675) at org.eclipse.ui.internal.WorkbenchWindow$2.run(WorkbenchWindow.java:790) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:788) at org.eclipse.jface.window.Window.handleShellCloseEvent(Window.java:736) at org.eclipse.jface.window.Window$3.shellClosed(Window.java:682) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:91) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1101) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1125) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1110) at org.eclipse.swt.widgets.Shell.closeWidget(Shell.java:542) at org.eclipse.swt.widgets.Shell.gtk_delete_event(Shell.java:922) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1478) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4234) at org.eclipse.swt.widgets.Display.windowProc(Display.java:3973) at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:5593) at org.eclipse.swt.widgets.Display.eventProc(Display.java:1192) at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method) at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:1487) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2969) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219) at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:45) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:612) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447) at org.eclipse.equinox.launcher.Main.run(Main.java:1173) at org.eclipse.equinox.launcher.Main.main(Main.java:1148)
Assigning it to the server team for an initial triage. Robert- what version of WTP are you using?
I get the following information from Help -> About -> Feature details Web Standard Tools - Server Core Version: 2.0.1.v200709110637-2-CM8s733G3G5Jc Build id: 20070926042742
Appears to be a Platform UI issue, transferring bugzilla. Please feel free to pass back to WTP's jst.server if there is any reason to believe this is Tomcat related.
Tim, this is a workbench window close event ... would anything to do with the tomcat debug console be causing that? How is tomcat opening/closing its console (or is it just a launched process)? Comments, Debug? PW
Hi Paul, It's just a regular launched process, extending the Java launch delegate. Sorry, forgot Console is from Debug team.
this is the result of ConsoleView making a call to super.dispose() from our dispose method. I did notice that the code in PageView does a map lookup/call all at once where the stack trace indicates the NPE is coming from. --> int newCount = ((Integer) mapPageToNumRecs.get(rec.page)).intValue() - 1; Moving back to platform ui. Paul, is it common to have a map lookup in this case return null? Are we somehow removing a console page when we shouldn't be that causes this lookup to fail?
(In reply to comment #6) > > --> int newCount = ((Integer) mapPageToNumRecs.get(rec.page)).intValue() - 1; > > Moving back to platform ui. Paul, is it common to have a map lookup in this > case return null? Are we somehow removing a console page when we shouldn't be > that causes this lookup to fail? Yeah, I had a look at this on the way through ... I was wondering if the console view did any early dispose of the part or page that's of interest. Console shouldn't be able to effect these internal structures deliberately, they all appear to be private to PageBookView. I'll have to have a closer look. PW
This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet. If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.
