[kaldi@intersoft.hu]

I use IDE4Laszlo in Eclipse. If I install MyEclipse 4.1.1 I can’t invoke
the Laszlo Editor – If I disable MyEclipse, then it works again.

I have seen, that others have the same problem, but I am not able to find
the solution.

I use Eclipse 3.1.2 (I also tried 3.1.1)
LaszloIDE-0.2.0.

After invoking the LaszloEditor I got the following errormessage:

Problems occurred when invoking code from plug-in: \”org.eclipse.jface\”.

This is the exception stack trace:

Error 2006-06-23 15:48:35.133 Problems occurred when invoking code from plug-in: “org.eclipse.jface”.
java.lang.NoClassDefFoundError: org/eclipse/wst/javascript/ui/internal/common/contentassist/JavaScriptContentAssistProcessor
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at org.eclipse.osgi.framework.adaptor.core.DefaultClassLoader.defineClass(DefaultClassLoader.java:370)
at org.eclipse.core.runtime.adaptor.EclipseClassLoader.defineClass(EclipseClassLoader.java:233)
at org.eclipse.osgi.framework.adaptor.core.DefaultClassLoader.findClassImpl(DefaultClassLoader.java:343)
at org.eclipse.osgi.framework.adaptor.core.DefaultClassLoader.findClass(DefaultClassLoader.java:235)
at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.findLocalClass(AbstractClassLoader.java:183)
at org.eclipse.core.runtime.adaptor.EclipseClassLoader.basicFindLocalClass(EclipseClassLoader.java:141)
at org.eclipse.core.runtime.adaptor.EclipseClassLoader.findLocalClass(EclipseClassLoader.java:68)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:337)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:389)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:350)
at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.loadClass(AbstractClassLoader.java:78)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at org.eclipse.laszlo.rct.editor.config.RCTSourceViewerConfiguration.getContentAssistProcessors(RCTSourceViewerConfiguration.java:142)
at org.eclipse.wst.sse.ui.StructuredTextViewerConfiguration.getContentAssistant(StructuredTextViewerConfiguration.java:207)
at org.eclipse.wst.sse.ui.internal.StructuredTextViewer.configure(StructuredTextViewer.java:181)
at org.eclipse.ui.texteditor.AbstractTextEditor.createPartControl(AbstractTextEditor.java:2517)
at org.eclipse.ui.texteditor.StatusTextEditor.createPartControl(StatusTextEditor.java:53)
at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.createPartControl(AbstractDecoratedTextEditor.java:314)
at org.eclipse.wst.sse.ui.StructuredTextEditor.createPartControl(StructuredTextEditor.java:1345)
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:609)
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.PartPane.setVisible(PartPane.java:283)
at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:126)
at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:269)
at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)
at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:391)
at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1102)
at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1051)
at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1256)
at org.eclipse.ui.internal.PartStack.add(PartStack.java:442)
at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:109)
at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:60)
at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:212)
at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:202)
at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:758)
at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:665)
at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:628)
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2360)
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.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2249)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:371)
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:334)
at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileAction.java:98)
at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystemEditorAction.java:98)
at org.eclipse.ui.views.navigator.OpenActionGroup.runDefaultAction(OpenActionGroup.java:120)
at org.eclipse.ui.views.navigator.MainActionGroup.runDefaultAction(MainActionGroup.java:326)
at org.eclipse.ui.views.navigator.ResourceNavigator.handleOpen(ResourceNavigator.java:650)
at org.eclipse.ui.views.navigator.ResourceNavigator$6.open(ResourceNavigator.java:409)
at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:741)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
at org.eclipse.core.runtime.Platform.run(Platform.java:783)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:148)
at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:739)
at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:968)
at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1067)
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:243)
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:238)
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:277)
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(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: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)

[Riyad Kalla]

The reason for this is that it looks like the Lazlo IDE depends on the WST portion of the web tools project. With MyEclipse 4.1.1 and previous MyEclipse shipped with a highly customized version of the original WTP 0.7 drop. With the MyEclipse 5.0 release we ported everything to build ontop of the WTP 1.5 release so as long as Lazlo IDE si compatible with WTP 1.5, you shouldn’t have any problems. With MyEclipse 4.1.1, it may not work.

You can test out MyEclipse 5.0 by downloading our 5.0 Milestone 1 preview from our Development Dwonloads area.

[kaldi@intersoft.hu]

Thank you, it works!

[Author]

Posts