[thanhhm]

Struts-config Editor Error:

I created an sample application with Struts capabilities. But when I open struts-config, I had
an error. Pls help me to fix this error:
“Unable to create this part due to an internal error. Reason for the failure: can not change undo manager once its been set”
Following is details:

Here is my system config:
*** Date: Mon Jul 31 11:30:40 PDT 2006

*** System properties:
OS=WindowsXP
OS version=5.1
Java version=1.5.0_07

*** MyEclipse details:
MyEclipse Enterprise Workbench

Version: 5.0 Milestone 2
Build id: 20060703-5.0-M2

*** Eclipse details:
Eclipse SDK

Version: 3.2.0
Build id: M20060629-1905

Eclipse Graphical Editing Framework

Version: 3.2.0.v20060626
Build id: 20060627-0816

Eclipse Platform

Version: 3.2.0.v20060609m-AgOexn6hlEUsvBO
Build id: M20060629-1905

Eclipse RCP

Version: 3.2.0.v20060609m-SVDNgVrNoh-MeGG
Build id: M20060629-1905

Eclipse Java Development Tools

Version: 3.2.0.v20060609m-F7snq1fxia-Z4XP
Build id: M20060629-1905

Eclipse Plug-in Development Environment

Version: 3.2.0.v20060609m——6zXJJzJzJq
Build id: M20060629-1905

Eclipse Project SDK

Version: 3.2.0.v20060609m-GNq6oQq-7es-Y81
Build id: M20060629-1905

Eclipse startup command=-os
win32
-ws
win32
-arch
x86
-launcher
C:\WIP\eclipse\eclipse.exe
-name
Eclipse
-showsplash
600
-exitdata
938_80
-vm
C:\WINDOWS\system32\javaw.exe

Here is my Error Log
java.lang.IllegalArgumentException: can not change undo manager once its been set
at org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument.setUndoManager(BasicStructuredDocument.java:2598)
at org.eclipse.wst.sse.core.internal.model.AbstractStructuredModel.setUndoManager(AbstractStructuredModel.java:1537)
at com.genuitec.eclipse.struts.editor.xml.SourceEditor.createPartControl(SourceEditor.java:313)
at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:183)
at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:153)
at com.genuitec.eclipse.struts.editor.multipage.StrutsConfigEditor.createSourceEditorPage(StrutsConfigEditor.java:230)
at com.genuitec.eclipse.struts.editor.multipage.StrutsConfigEditor.createPages(StrutsConfigEditor.java:286)
at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:276)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:596)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:372)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:566)
at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:214)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2588)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2521)
at org.eclipse.ui.internal.WorkbenchPage.access$10(WorkbenchPage.java:2513)
at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2498)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2493)
at org.eclipse.ui.actions.OpenWithMenu.openEditor(OpenWithMenu.java:288)
at org.eclipse.ui.actions.OpenWithMenu.access$0(OpenWithMenu.java:280)
at org.eclipse.ui.actions.OpenWithMenu$2.handleEvent(OpenWithMenu.java:184)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1914)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1878)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:419)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

[Riyad Kalla]

Try restarting using the -clean command line argument. Also is this a web project with struts capabilities or is it a plain Java project? If -clean doesn’t work, try a new workspace using File > Switch Workspace, fi that doesn’t work, a clean reinstall may be necessary.

[thanhhm]

It is a a web with struts capabilities. I also restarted using -clean. More, I switched into a new workspace. But the error is still existing. I will try to reinstall.

[thanhhm]

I removed MyEclipse and reinstalled it. But the error still alive. Maybe it is a bug of MyEclipse 5.0 M2.

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