[Don Nelson]

Hi all,

I’m getting the following error when opening a javascript file – the file never opens and there is no error message:

!ENTRY org.eclipse.ui 4 4 2006-04-08 14:28:40.23
!MESSAGE Unhandled event loop exception

!ENTRY org.eclipse.ui 4 0 2006-04-08 14:28:40.33
!MESSAGE com.genuitec.eclipse.integration.Integrator.jsMultiPageEditorPart(Lorg/eclipse/ui/IEditorSite;Lorg/eclipse/ui/IEditorInput;)Z
!STACK 0
java.lang.NoSuchMethodError: com.genuitec.eclipse.integration.Integrator.jsMultiPageEditorPart(Lorg/eclipse/ui/IEditorSite;Lorg/eclipse/ui/IEditorInput;)Z
at com.ibm.sse.editor.javascript.JSMultiPageEditorPart.init(JSMultiPageEditorPart.java:129)
at org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:778)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:596)
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:384)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:552)
at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:223)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2362)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2295)
at org.eclipse.ui.internal.WorkbenchPage.access$9(WorkbenchPage.java:2287)
at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2273)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2268)
at org.eclipse.ui.actions.OpenWithMenu.openEditor(OpenWithMenu.java:279)
at org.eclipse.ui.actions.OpenWithMenu.access$0(OpenWithMenu.java:271)
at org.eclipse.ui.actions.OpenWithMenu$2.handleEvent(OpenWithMenu.java:178)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:843)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3125)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2758)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1699)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1663)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:367)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:226)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:376)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:163)
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:324)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334)
at org.eclipse.core.launcher.Main.basicRun(Main.java:278)
at org.eclipse.core.launcher.Main.run(Main.java:973)
at org.eclipse.core.launcher.Main.main(Main.java:948)

– System Setup ——————————-
Operating System and version: XP SP2
Eclipse version: 3.1.2
Eclipse build id: M20060118-1600
MyEclipse version: 4.1.1 Professional
Eclipse JDK version: 1.4.2
Application Server JDK version: 1.4.2
Are there any exceptions in the Eclipse log file? Yes

[Riyad Kalla]

This is caused by an installation problem. Have you upgraded MyEclipse or Eclipse recently by simply installing or unzipping new copies ontop of the existing ones? I would suggest (whenever you see API breakage messages like this) to perform clean installs of Eclipse SDK 3.1.2 to a NEW directory as well as MyEclipse 4.1.1 to a NEW directory. After that, add -clean to your command line args and open your existing workspace, you should be back in action (since all your config options are stored in your workspace).

[Don Nelson]

Thanks Riyad – I’ll try that. Wondering if this might eventually be solved, or is this something we will live with? Good to know either way, because it affects my team.

Thanks again,

Don

[Riyad Kalla]

I don’t follow “might eventually be solved”? If you are seeing exceptions like:

java.lang.NoSuchMethodError: com.genuitec.eclipse.integration.Integrator.jsMultiPageEditorPart(Lorg/eclipse/ui/IEditorSite;Lorg/eclipse/ui/IEditorInput;)Z

There really isn’t anything to solve. The installation has been corrupted or changed in such a way that MyEclipse cannot identify the proper base Eclipse platform class to load the JavaScript editor. This can be caused by a bad install or an upgrade that failed. This can be caused (most times) by people not understanding how Eclipse upgrading works and by simply unzipping new versions of MyEclipse or Eclipse ontop of their existing installs. This is equivalent to taking a Windows XP CD, and installing it directly ontop of your Windows 2K C:\Windows directory and not performing the “Upgrade” step, the result would be a completely corrupted system that would likely boot but give all sorts of random errors (like this one).

[eaparnell]

I did a clean install from the beginning but am still getting this error. Do you have any additional help?

[Riyad Kalla]

eaparnell,
Please be more specific. What did your clean install entail? If you reused any of your old directories or workspaces or downloads that you had on your machine, then it’s likely you just recreated the same bad setup.

NoSuchMethodErrors *are* install issues, so if you are still getting them, then the problem is still an install issue. Give me some more info on exactly what you did and I’ll try and point you in the right direction.

[eaparnell]

I downloaded 3.1.2 of the Eclipse SDK and put it in a brand new directory. I then ran through the 4.1.1 GA install script and pointed it to the new eclipse directory. I do believe I may have re-used my old workspace and now I notice there is a /.metatdata/.plugins directory there (this is all on windows XP). Can I just somehow re-create a new workspace to solve this problem without having to re-install eclipse and myeclipse??

[Riyad Kalla]

Can I just somehow re-create a new workspace to solve this problem without having to re-install eclipse and myeclipse??

Sure, fire up your setup and go to File > Switch Workspace, then enter in ayour new workspace dir and hit OK to restart. Let me know if it works then.

Also you mentioned you used a clean dir with Eclipse, but did you do the same with MyEclipse in it’s own new clean dir? (In the Eclipse world, due to plugin caches and other black magic, simply overwriting plugins with updated versions of themselves or even the same versions that are out of sync with the workspace cache can lead to annoying hickups like this)

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