Re: Strange error occurring with wocomponents in application

From: Chuck Hill (chil..lobal-village.net)
Date: Tue Jul 31 2007 - 19:19:12 EDT

  • Next message: Joshua Archer: "Re: Strange error occurring with wocomponents in application"

    On Jul 31, 2007, at 3:42 PM, Joshua Archer wrote:

    > Good news is, I can now open up the wocomponents (thanks!),...
    >
    > ...bad news is, now the project won't launch:
    >
    > Exception in thread "main" java.lang.NoClassDefFoundError: org/
    > pachyderm/authoring/Application
    >
    > Class exists. I tried removing the launcher and re-creating. Still
    > no avail. hrmmm

    I have seen it do that once in a while. Might be some kind of
    refresh race condition. Makes no sense. Clean and build? An
    Eclipse restart maybe? Check and see that Application.class exists
    at this path under bin/ and also under dist/ in the Resources/Java.

    Chuck

    > On Jul 31, 2007, at 3:10 PM, Chuck Hill wrote:
    >
    >> Deep clean the project (remove everything under bin/ and
    >> the .framework or .woa. Does that help? Restart Eclipse. How
    >> about now?
    >>
    >> Chuck
    >>
    >>
    >> On Jul 31, 2007, at 2:07 PM, Joshua Archer wrote:
    >>
    >>> Hey everyone,
    >>>
    >>> I've got a strange problem that's cropped up after I changed
    >>> package names on a project I'm working on, where none of the .wo
    >>> folders open up in the editor anymore. I'm getting errors such as
    >>> the following. I can create a new wocomponent and it works in the
    >>> editor fine, but something's screwy about the wocomponents that
    >>> are pre-exisiting. Any ideas?
    >>> It may or may not be the package name that caused the problem,
    >>> because I've been doing other changes to packages on other
    >>> supporting frameworks, exporting some from their svn tree and re-
    >>> importing them elsewhere. But, nothing I can come up with seems
    >>> to explain this behavior.
    >>>
    >>> Unable to create this part due to an internal error. Reason for
    >>> the failure: assertion failed:
    >>>
    >>> org.eclipse.core.runtime.AssertionFailedException: assertion failed:
    >>> at org.eclipse.core.runtime.Assert.isTrue(Assert.java:109)
    >>> at org.eclipse.core.runtime.Assert.isTrue(Assert.java:95)
    >>> at org.eclipse.ui.part.MultiPageEditorPart.setActivePage
    >>> (MultiPageEditorPart.java:688)
    >>> at org.eclipse.ui.part.MultiPageEditorPart.createPartControl
    >>> (MultiPageEditorPart.java:280)
    >>> 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.PartPane.setVisible(PartPane.java:290)
    >>> at
    >>> org.eclipse.ui.internal.presentations.PresentablePart.setVisible
    >>> (PresentablePart.java:140)
    >>> at
    >>> org.eclipse.ui.internal.presentations.util.PresentablePartFolder.sel
    >>> ect(PresentablePartFolder.java:268)
    >>> at
    >>> org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.selec
    >>> t(LeftToRightTabOrder.java:65)
    >>> at
    >>> org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.s
    >>> electPart(TabbedStackPresentation.java:394)
    >>> at org.eclipse.ui.internal.PartStack.refreshPresentationSelection
    >>> (PartStack.java:1144)
    >>> at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:
    >>> 1097)
    >>> at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1311)
    >>> at org.eclipse.ui.internal.PartStack.add(PartStack.java:455)
    >>> at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:102)
    >>> at org.eclipse.ui.internal.PartStack.add(PartStack.java:441)
    >>> at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:111)
    >>> at org.eclipse.ui.internal.EditorSashContainer.addEditor
    >>> (EditorSashContainer.java:60)
    >>> at org.eclipse.ui.internal.EditorAreaHelper.addToLayout
    >>> (EditorAreaHelper.java:217)
    >>> at org.eclipse.ui.internal.EditorAreaHelper.addEditor
    >>> (EditorAreaHelper.java:207)
    >>> at org.eclipse.ui.internal.EditorManager.createEditorTab
    >>> (EditorManager.java:822)
    >>> at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor
    >>> (EditorManager.java:721)
    >>> at org.eclipse.ui.internal.EditorManager.openEditor
    >>> (EditorManager.java:682)
    >>> at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched
    >>> (WorkbenchPage.java:2593)
    >>> at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor
    >>> (WorkbenchPage.java:2528)
    >>> at org.eclipse.ui.internal.WorkbenchPage.access$10
    >>> (WorkbenchPage.java:2520)
    >>> at org.eclipse.ui.internal.WorkbenchPage$9.run
    >>> (WorkbenchPage.java:2505)
    >>> at org.eclipse.swt.custom.BusyIndicator.showWhile
    >>> (BusyIndicator.java:67)
    >>> at org.eclipse.ui.internal.WorkbenchPage.openEditor
    >>> (WorkbenchPage.java:2500)
    >>> at org.eclipse.ui.internal.WorkbenchPage.openEditor
    >>> (WorkbenchPage.java:2477)
    >>> at
    >>> org.objectstyle.wolips.workbenchutilities.WorkbenchUtilitiesPlugin.o
    >>> pen(Unknown Source)
    >>> at
    >>> org.objectstyle.wolips.workbenchutilities.WorkbenchUtilitiesPlugin.o
    >>> pen(Unknown Source)
    >>> at
    >>> org.objectstyle.wolips.workbenchutilities.WorkbenchUtilitiesPlugin.o
    >>> pen(Unknown Source)
    >>> at
    >>> org.objectstyle.wolips.ui.actions.OpenWOAction.openResourceIfPossibl
    >>> e(Unknown Source)
    >>> at
    >>> org.objectstyle.wolips.eomodeler.eclipse.PackageExplorerDoubleClickH
    >>> andler.doubleClick(Unknown Source)
    >>> at org.eclipse.jface.viewers.StructuredViewer$1.run
    >>> (StructuredViewer.java:796)
    >>> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    >>> at org.eclipse.core.runtime.Platform.run(Platform.java:843)
    >>> at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44)
    >>> at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:149)
    >>> at org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick
    >>> (StructuredViewer.java:794)
    >>> at
    >>> org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect
    >>> (AbstractTreeViewer.java:1227)
    >>> at org.eclipse.jface.viewers.StructuredViewer
    >>> $4.widgetDefaultSelected(StructuredViewer.java:1158)
    >>> at org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent
    >>> (OpenStrategy.java:223)
    >>> at org.eclipse.jface.util.OpenStrategy.access$0
    >>> (OpenStrategy.java:220)
    >>> at org.eclipse.jface.util.OpenStrategy$1.handleEvent
    >>> (OpenStrategy.java:281)
    >>> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
    >>> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1496)
    >>> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1520)
    >>> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1505)
    >>> at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1279)
    >>> at org.eclipse.swt.widgets.Display.runDeferredEvents
    >>> (Display.java:3312)
    >>> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:
    >>> 2941)
    >>> at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:
    >>> 1930)
    >>> at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1894)
    >>> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench
    >>> (Workbench.java:422)
    >>> 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.runAppl
    >>> ication(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
    >>> (NativeMethodAccessorImpl.java:39)
    >>> at sun.reflect.DelegatingMethodAccessorImpl.invoke
    >>> (DelegatingMethodAccessorImpl.java:25)
    >>> at java.lang.reflect.Method.invoke(Method.java:585)
    >>> 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)
    >>>
    >>> --------------------------------------------------------------------
    >>> ---------
    >>> Joshua Archer
    >>> Software Engineer, CSU - Center for Distributed Learning
    >>> Phone: 707.664.2085, Fax: 707.664.4350
    >>> --------------------------------------------------------------------
    >>> ---------
    >>>
    >>>
    >>>
    >>
    >> --
    >>
    >> Practical WebObjects - for developers who want to increase their
    >> overall knowledge of WebObjects or who are trying to solve
    >> specific problems.
    >> http://www.global-village.net/products/practical_webobjects
    >>
    >>
    >>
    >>
    >>
    >>
    >
    > ----------------------------------------------------------------------
    > -------
    > Joshua Archer
    > Software Engineer, CSU - Center for Distributed Learning
    > Phone: 707.664.2085, Fax: 707.664.4350
    > ----------------------------------------------------------------------
    > -------
    >
    >
    >
    >

    -- 
    

    Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems. http://www.global-village.net/products/practical_webobjects



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