[jeffsumner]

Hello,

I’m a new MyEclipse user, and I’m still trying to figure things out. I had installed an earlier eval version (3.8.4 I believe) and then we purchased licenses.

I’m using Eclipse 3.0.2 (Build id: 200503110845).

Last week I upgraded to 4.0.3. I found out today that I can’t load any more SQL files. I get an error saying

Unable to instantiate editor:
com.genuitec.eclipse.sqlexplorer.editors.SQLEditor
org.eclipse.core.runtime.CoreException: Plug-in
com.genuitec.eclipse.sqlexplorer was unable to load class
com.genuitec.eclipse.sqlexplorer.editors.SQLEditor

Here are the steps I followed to upgrade to 4.0.3…

1) Upgraded to 3.8.5 as recommened when I did Help > Software Updates > Find and Install… AFter this, version 4.0.3 was not listed as an available upgrade.

2) Added http://downloads.myeclipseide.com/downloads/products/eworkbench/updates-4.0/ as a “New Remote Site” based on a posting from another thread (http://www.myeclipseide.com/PNphpBB2+file-viewtopic-t-9824.html).

3) At this point, 4.0.3 was listed as an available upgrade. When I tried to upgrade, I got warnings of “Duplications”. I then selected the upgrade item as the MyEclipse installation folder instead of the default Eclipse folder, and the warning wasn’t reported.

4) The upgrade seemed to work successfully, and I didn’t notice any problems until I tried to open a SQL file today.

Based on several other threads, I tried to start eclipse with the -clean option, but it didn’t resolve the problem.

I notice that when I do a Help > About Eclipse Platform, and then click on the MyEclipse button, several items are listed as having versions from 3.8.5 to 4.0.3. The MyEclipse Database Feature reports as version 4.0.1.

I also found an exception trace when I did Help > About Eclipse Platform > Configuration Details > View Error Log. The trace is at the bottom of the posting.

I hope this is enough info to troubleshoot. If not, please let me know and I’ll try to get more. I’m concerned that if the SQL editor isn’t working, there may be other features that aren’t working also.

Thanks.

– Jeff Sumner

!SUBENTRY 1 org.eclipse.core.runtime 4 1 Nov 15, 2005 15:40:08.325
!MESSAGE Plug-in com.genuitec.eclipse.sqlexplorer was unable to load class com.genuitec.eclipse.sqlexplorer.editors.SQLEditor.
!STACK 0
java.lang.ClassNotFoundException: com.genuitec.eclipse.sqlexplorer.editors.SQLEditor
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:404)
at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.loadClass(AbstractClassLoader.java:93)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:307)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:336)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1313)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:131)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:124)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:113)
at org.eclipse.ui.internal.WorkbenchPlugin$1.run(WorkbenchPlugin.java:196)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
at org.eclipse.ui.internal.WorkbenchPlugin.createExtension(WorkbenchPlugin.java:193)
at org.eclipse.ui.internal.EditorManager$5.run(EditorManager.java:798)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:616)
at org.eclipse.core.runtime.Platform.run(Platform.java:747)
at org.eclipse.ui.internal.EditorManager.createPart(EditorManager.java:796)
at org.eclipse.ui.internal.EditorManager.openInternalEditor(EditorManager.java:783)
at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:582)
at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:570)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2244)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2177)
at org.eclipse.ui.internal.WorkbenchPage.access$6(WorkbenchPage.java:2169)
at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2156)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2151)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:299)
at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileAction.java:96)
at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystemEditorAction.java:94)
at org.eclipse.ui.views.navigator.OpenActionGroup.runDefaultAction(OpenActionGroup.java:111)
at org.eclipse.ui.views.navigator.MainActionGroup.runDefaultAction(MainActionGroup.java:293)
at org.eclipse.ui.views.navigator.ResourceNavigator.handleOpen(ResourceNavigator.java:624)
at org.eclipse.ui.views.navigator.ResourceNavigator$6.open(ResourceNavigator.java:388)
at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:429)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:616)
at org.eclipse.core.runtime.Platform.run(Platform.java:747)
at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:427)
at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:635)
at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:731)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:211)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:206)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:238)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2773)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2432)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1377)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1348)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:254)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:96)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:335)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:273)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:129)
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.basicRun(Main.java:185)
at org.eclipse.core.launcher.Main.run(Main.java:704)
at org.eclipse.core.launcher.Main.main(Main.java:688)

[jeffsumner]

Actually, it’s worse. I can no longer open a JSP file. I get an error dialog that simply says “Unable to create part:”. The stack trace from the error log is:

!ENTRY org.eclipse.core.runtime 4 2 Nov 15, 2005 16:45:50.108
!MESSAGE Problems occurred when invoking code from plug-in: “org.eclipse.core.runtime”.
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/emf/common/command/CommandStackListener
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:298)
at org.eclipse.core.runtime.adaptor.EclipseClassLoader.defineClass(EclipseClassLoader.java:223)
at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultClassLoader.findClassImpl(DefaultClassLoader.java:281)
at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultClassLoader.findClass(DefaultClassLoader.java:172)
at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.findLocalClass(AbstractClassLoader.java:220)
at org.eclipse.core.runtime.adaptor.EclipseClassLoader.basicFindLocalClass(EclipseClassLoader.java:135)
at org.eclipse.core.runtime.adaptor.EclipseClassLoader.findLocalClass(EclipseClassLoader.java:59)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:371)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:402)
at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.loadClass(AbstractClassLoader.java:93)
at java.lang.ClassLoader.loadClass(ClassLoader.java:235)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
at com.ibm.sse.editor.StructuredTextViewer.setModel(StructuredTextViewer.java:1077)
at com.ibm.sse.editor.StructuredTextEditor.update(StructuredTextEditor.java:2272)
at com.genuitec.eclipse.webdesigner2.HTMLMultiPageEditorPart.createSourcePage(HTMLMultiPageEditorPart.java:426)
at com.genuitec.eclipse.webdesigner2.HTMLMultiPageEditorPart.createPages(HTMLMultiPageEditorPart.java:254)
at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:187)
at org.eclipse.ui.internal.PartPane$2.run(PartPane.java:137)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:616)
at org.eclipse.core.runtime.Platform.run(Platform.java:747)
at org.eclipse.ui.internal.PartPane.createChildControl(PartPane.java:133)
at org.eclipse.ui.internal.PartPane.createControl(PartPane.java:205)
at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:939)
at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:921)
at org.eclipse.ui.internal.EditorStack.setSelection(EditorStack.java:196)
at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1020)
at org.eclipse.ui.internal.PartStack.add(PartStack.java:290)
at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:121)
at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:59)
at org.eclipse.ui.internal.EditorAreaHelper.openEditor(EditorAreaHelper.java:266)
at org.eclipse.ui.internal.EditorManager$4.run(EditorManager.java:694)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:683)
at org.eclipse.ui.internal.EditorManager.openInternalEditor(EditorManager.java:790)
at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:582)
at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:570)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2244)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2177)
at org.eclipse.ui.internal.WorkbenchPage.access$6(WorkbenchPage.java:2169)
at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:2156)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2151)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:299)
at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileAction.java:96)
at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystemEditorAction.java:94)
at org.eclipse.ui.views.navigator.OpenActionGroup.runDefaultAction(OpenActionGroup.java:111)
at org.eclipse.ui.views.navigator.MainActionGroup.runDefaultAction(MainActionGroup.java:293)
at org.eclipse.ui.views.navigator.ResourceNavigator.handleOpen(ResourceNavigator.java:624)
at org.eclipse.ui.views.navigator.ResourceNavigator$6.open(ResourceNavigator.java:388)
at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:429)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:616)
at org.eclipse.core.runtime.Platform.run(Platform.java:747)
at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:427)
at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:635)
at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:731)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:211)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:206)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:238)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2773)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2432)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1377)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1348)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:254)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:96)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:335)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:273)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:129)
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.basicRun(Main.java:185)
at org.eclipse.core.launcher.Main.run(Main.java:704)
at org.eclipse.core.launcher.Main.main(Main.java:688)

[Scott Anderson]

Jeff,

The issue is likely that the Eclipse plugin cache got stale as it sometimes
does not cleanly rebuild after updates. To rectify the problem you’ll need
to restart Eclipse with the -clean flag one time: eclipse.exe -clean

That should resolve the problem.

[jeffsumner]

Hi Scott,

I had already tried that as stated in the original posting:

Based on several other threads, I tried to start eclipse with the -clean option, but it didn’t resolve the problem

Not a problem, I put a lot of info in that post and it’s very easy for something to fall between the cracks.

One thing that caught my eye late yesterday… Will MyEclipse 4.0.3 work with Eclipse 3.0.2? Or do I need Eclipse 3.1 or later? I installed Eclipse 3.1.1 in a separate folder and then did a clean install of MyEclipse 4.0.3 pointing to the new Eclipse installation, and that seems to work fine.

If this is the case, I may have to forego the extra capabilities of ME 4.0.3 because I need to also use Together 7.0. Unfortunately, it only works with Eclipse 3.0, not 3.1.

Thanks.

– Jeff

[Riyad Kalla]

Will MyEclipse 4.0.3 work with Eclipse 3.0.2? Or do I need Eclipse 3.1 or later? I installed Eclipse 3.1.1 in a separate folder and then did a clean install of MyEclipse 4.0.3 pointing to the new Eclipse installation, and that seems to work fine.

Jeff, yes MyEclipse is only for Eclipse 3.1, this will definately create issues if you tried to run it with Eclipse 3.0, thank you for adding those details, it can be hard to try and juggle all these versions and compatabilities at times.

[Author]

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