Description Raghunathan Srinivasan 2007-12-07 17:38:33 EST

Hitting the Preview tab on the WPE gives an java.lang.LinkageError exception.
Workaround:
Remove the following set of jars in the plugin folder:
javax.servlet.jsp_2.0.0.v200706191603.jar
javax.servlet_2.4.0.v200706111738.jar
org.apache.commons.el_1.0.0.v200706111724.jar

Stacktrace:
java.lang.LinkageError: Class javax/servlet/jsp/el/VariableResolver violates loader constraints
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:161)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java:503)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findClassImpl(ClasspathManager.java:473)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:432)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManager.findLocalClass(ClasspathManager.java:415)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java:189)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:344)
at org.eclipse.osgi.framework.internal.core.SingleSourcePackage.loadClass(SingleSourcePackage.java:33)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClassInternal(BundleLoader.java:400)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:373)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:361)
at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at org.apache.commons.el.NamedValue.evaluate(NamedValue.java:124)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:140)
at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:263)
at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:190)
at org.eclipse.jst.pagedesigner.preview.PageExpressionContext.evaluateExpression(PageExpressionContext.java:131)
at org.eclipse.jst.pagedesigner.dtmanager.converter.internal.DTTagConverterDecorator.resolveChildText(DTTagConverterDecorator.java:149)
at org.eclipse.jst.pagedesigner.dtmanager.converter.internal.DTTagConverterDecorator.decorateFromDTInfo(DTTagConverterDecorator.java:82)
at org.eclipse.jst.pagedesigner.dtmanager.converter.internal.DTTagConverterDecorator.decorate(DTTagConverterDecorator.java:52)
at org.eclipse.jst.pagedesigner.dtmanager.converter.internal.DTTagConverter.convertRefresh(DTTagConverter.java:75)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvertElement(PreviewConvertContext.java:93)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvert(PreviewConvertContext.java:56)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvertElement(PreviewConvertContext.java:100)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvert(PreviewConvertContext.java:56)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvertElement(PreviewConvertContext.java:100)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvert(PreviewConvertContext.java:56)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvertElement(PreviewConvertContext.java:100)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvert(PreviewConvertContext.java:56)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvertElement(PreviewConvertContext.java:100)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvert(PreviewConvertContext.java:56)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvertElement(PreviewConvertContext.java:100)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvert(PreviewConvertContext.java:56)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvertElement(PreviewConvertContext.java:100)
at org.eclipse.jst.pagedesigner.preview.PreviewConvertContext.previewConvert(PreviewConvertContext.java:56)
at org.eclipse.jst.pagedesigner.preview.PreviewHandlerNew.generatePreview(PreviewHandlerNew.java:97)
at org.eclipse.jst.pagedesigner.editors.HTMLEditor.pageChange(HTMLEditor.java:880)
at org.eclipse.ui.part.MultiPageEditorPart$2.widgetSelected(MultiPageEditorPart.java:260)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:227)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:952)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:976)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:961)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:720)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3236)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:2011)
at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:316)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:952)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3750)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3361)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2381)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2345)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2211)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:473)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:468)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:362)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:175)
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.equinox.launcher.Main.invokeFramework(Main.java:561)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:501)
at org.eclipse.equinox.launcher.Main.run(Main.java:1239)
at org.eclipse.equinox.launcher.Main.main(Main.java:1215)