Unsolveable problem "invoking code from plug-in" in Galileo!

[MMT]

Hi,

I tried many solutions but i couldn't figure out what to do.

I just installed Galileo and updated to the last version. And i
installed Google Plugin for Eclipse, GWT 1.7, Google Web Toolkit SDK
and App Engine SDK.

Now on a fresh installation of everything needed, i am trying to get
started to GWT.

The problem is, whenever i double click a ".java" file from Project
Explorer i get this error:
"Problems occurred when invoking code from plug-in:
"org.eclipse.jface"."

I can not open any java files so i am stuck.

Is there anyone with the same problem or can anyone try to figure out
the solution?

Here are Stack Trace and Session Data:
***Session Data:***
eclipse.buildId=M20090917-0800
java.version=1.6.0_10-rc
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=tr_TR
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os win32 -ws win32 -arch x86 -product
org.eclipse.epp.package.jee.product

***Stack Trace:***
java.lang.NoSuchMethodError:
com.google.gwt.eclipse.core.editors.java.GWTJavaEditor.getInputJavaElement
()Lorg/eclipse/jdt/core/IJavaElement;
at
com.google.gwt.eclipse.core.editors.java.GWTJavaEditor.getInputJavaProject
(GWTJavaEditor.java:188)
at
com.google.gwt.eclipse.core.editors.java.GWTSourceViewerConfiguration.getAutoEditStrategies
(GWTSourceViewerConfiguration.java:75)
at org.eclipse.jface.text.source.SourceViewer.configure
(SourceViewer.java:414)
at org.eclipse.jdt.internal.ui.javaeditor.JavaSourceViewer.configure
(JavaSourceViewer.java:223)
at org.eclipse.ui.texteditor.AbstractTextEditor.createPartControl
(AbstractTextEditor.java:3322)
at org.eclipse.ui.texteditor.StatusTextEditor.createPartControl
(StatusTextEditor.java:53)
at
org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.createPartControl
(AbstractDecoratedTextEditor.java:427)
at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.createPartControl
(JavaEditor.java:3078)
at
org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.createPartControl
(CompilationUnitEditor.java:1475)
at org.eclipse.ui.internal.EditorReference.createPartHelper
(EditorReference.java:662)
at org.eclipse.ui.internal.EditorReference.createPart
(EditorReference.java:462)
at org.eclipse.ui.internal.WorkbenchPartReference.getPart
(WorkbenchPartReference.java:595)
at org.eclipse.ui.internal.EditorReference.getEditor
(EditorReference.java:286)
at org.eclipse.ui.internal.EditorManager.findEditor
(EditorManager.java:403)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched
(WorkbenchPage.java:2799)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor
(WorkbenchPage.java:2762)
at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:
2754)
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:
2705)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:
70)
at org.eclipse.ui.internal.WorkbenchPage.openEditor
(WorkbenchPage.java:2701)
at org.eclipse.ui.internal.WorkbenchPage.openEditor
(WorkbenchPage.java:2685)
at org.eclipse.ui.internal.WorkbenchPage.openEditor
(WorkbenchPage.java:2676)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor
(EditorUtility.java:374)
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor
(EditorUtility.java:178)
at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:229)
at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:208)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun
(SelectionDispatchAction.java:274)
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run
(SelectionDispatchAction.java:250)
at org.eclipse.jdt.internal.ui.navigator.OpenAndExpand.run
(OpenAndExpand.java:49)
at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221)
at org.eclipse.ui.navigator.CommonNavigatorManager$3.open
(CommonNavigatorManager.java:202)
at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open
(OpenAndLinkWithEditorHelper.java:48)
at org.eclipse.jface.viewers.StructuredViewer$2.run
(StructuredViewer.java:842)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.core.runtime.Platform.run(Platform.java:888)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at org.eclipse.jface.viewers.StructuredViewer.fireOpen
(StructuredViewer.java:840)
at org.eclipse.jface.viewers.StructuredViewer.handleOpen
(StructuredViewer.java:1101)
at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:
467)
at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen
(StructuredViewer.java:1205)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent
(OpenStrategy.java:264)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:
258)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent
(OpenStrategy.java:298)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:
3880)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3473)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:
2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault
(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench
(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:
149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start
(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run
(EclipseAppHandle.java:194)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication
(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start
(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run
(EclipseStarter.java:368)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run
(EclipseStarter.java:179)
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.equinox.launcher.Main.invokeFramework(Main.java:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

[Jaroslav Záruba]

This is probably quite a stupid one, but have you tried eclipse.exe -
clean?

[Jason Parekh]

Definitely seems like there's some strangeness with the installation of the plugin. If Jaroslav's suggestion of "-clean" does not work, could you try uninstalling the Google Plugin for Eclipse and re-installing?

jason