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    Error after latest update
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    created by <a href="https://community.jboss.org/people/reschifl">Lars Fischer</a> in <i>JBoss Tools</i> - <a href="https://community.jboss.org/message/748685#748685">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hello,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>I used an Eclipse JEE 3.7.2 with installed JBoss Tools 3.3.0 Final. Everything was fine.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>Yesterday I checked for updates and there where some for JBoss Tools (version 3.3.1?).</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>After performing the successful update, my Eclipse is no longer usable. Every doubleclick on a file results in an error like this:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><blockquote class="jive-quote"><p>java.lang.NoClassDefFoundError: org/eclipse/jpt/common/utility/internal/StatefulCommandExecutor</p><p>&#160;&#160;&#160; at org.eclipse.jpt.jpa.core.JptJpaCorePlugin.buildJpaProjectManager(JptJpaCorePlugin.java:791)</p><p>&#160;&#160;&#160; at org.eclipse.jpt.jpa.core.JptJpaCorePlugin.getJpaProjectManager_(JptJpaCorePlugin.java:784)</p><p>&#160;&#160;&#160; at org.eclipse.jpt.jpa.core.JptJpaCorePlugin.getJpaProjectManager(JptJpaCorePlugin.java:248)</p><p>&#160;&#160;&#160; at org.eclipse.jpt.jpa.core.JptJpaCorePlugin.getJpaFile(JptJpaCorePlugin.java:265)</p><p>&#160;&#160;&#160; at org.eclipse.jpt.jpa.core.internal.resource.xml.JpaXmlResourceAdapterFactory.getAdapter(JpaXmlResourceAdapterFactory.java:38)</p><p>&#160;&#160;&#160; at org.eclipse.jpt.jpa.core.internal.resource.xml.JpaXmlResourceAdapterFactory.getAdapter(JpaXmlResourceAdapterFactory.java:31)</p><p>&#160;&#160;&#160; at org.eclipse.core.internal.adapter.AdapterFactoryProxy.getAdapter(AdapterFactoryProxy.java:80)</p><p>&#160;&#160;&#160; at org.eclipse.core.internal.runtime.AdapterManager.getAdapter(AdapterManager.java:326)</p><p>&#160;&#160;&#160; at org.eclipse.core.internal.runtime.AdapterManager.getAdapter(AdapterManager.java:307)</p><p>&#160;&#160;&#160; at org.eclipse.core.internal.expressions.AdaptExpression.evaluate(AdaptExpression.java:80)</p><p>&#160;&#160;&#160; at org.eclipse.core.internal.expressions.CompositeExpression.evaluateOr(CompositeExpression.java:68)</p><p>&#160;&#160;&#160; at org.eclipse.core.internal.expressions.OrExpression.evaluate(OrExpression.java:21)</p><p>&#160;&#160;&#160; at org.eclipse.core.internal.expressions.CompositeExpression.evaluateAnd(CompositeExpression.java:53)</p><p>&#160;&#160;&#160; at org.eclipse.core.internal.expressions.IterateExpression.evaluate(IterateExpression.java:150)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.EvaluationResultCache.evaluate(EvaluationResultCache.java:74)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.ExpressionAuthority.evaluate(ExpressionAuthority.java:165)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.EvaluationAuthority.refsWithSameExpression(EvaluationAuthority.java:155)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.EvaluationAuthority.sourceChanged(EvaluationAuthority.java:129)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.ExpressionAuthority.sourceChanged(ExpressionAuthority.java:311)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.ExpressionAuthority.sourceChanged(ExpressionAuthority.java:290)</p><p>&#160;&#160;&#160; at org.eclipse.ui.AbstractSourceProvider.fireSourceChanged(AbstractSourceProvider.java:99)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkActivePart(WorkbenchSourceProvider.java:401)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkActivePart(WorkbenchSourceProvider.java:300)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.WorkbenchSourceProvider.handleCheck(WorkbenchSourceProvider.java:286)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.WorkbenchSourceProvider.checkOtherSources(WorkbenchSourceProvider.java:855)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.services.WorkbenchSourceProvider$6.handleEvent(WorkbenchSourceProvider.java:839)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1262)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1052)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1058)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Decorations.WM_ACTIVATE(Decorations.java:1647)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Shell.WM_ACTIVATE(Shell.java:2137)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Control.windowProc(Control.java:4525)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:341)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1610)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2061)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Display.windowProc(Display.java:4972)</p><p>&#160;&#160;&#160; at org.eclipse.swt.internal.win32.OS.SetFocus(Native Method)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Control.forceFocus(Control.java:1098)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Control.setFocus(Control.java:3303)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Composite.setFocus(Composite.java:1040)</p><p>&#160;&#160;&#160; at org.eclipse.ui.texteditor.AbstractTextEditor.setFocus(AbstractTextEditor.java:6189)</p><p>&#160;&#160;&#160; at org.eclipse.ui.texteditor.StatusTextEditor.setFocus(StatusTextEditor.java:122)</p><p>&#160;&#160;&#160; at org.eclipse.ui.part.MultiPageEditorPart.setFocus(MultiPageEditorPart.java:1110)</p><p>&#160;&#160;&#160; at org.eclipse.ui.part.MultiPageEditorPart.setFocus(MultiPageEditorPart.java:1092)</p><p>&#160;&#160;&#160; at org.eclipse.pde.internal.ui.editor.PDEFormEditor.setFocus(PDEFormEditor.java:274)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.PartPane.setFocus(PartPane.java:332)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.EditorPane.setFocus(EditorPane.java:127)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage$3.run(WorkbenchPage.java:703)</p><p>&#160;&#160;&#160; at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)</p><p>&#160;&#160;&#160; at org.eclipse.core.runtime.Platform.run(Platform.java:888)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.activatePart(WorkbenchPage.java:698)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.setActivePart(WorkbenchPage.java:3632)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.internalActivate(WorkbenchPage.java:691)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.activate(WorkbenchPage.java:663)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2957)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2850)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2842)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2793)</p><p>&#160;&#160;&#160; at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2789)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2773)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2764)</p><p>&#160;&#160;&#160; at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651)</p><p>&#160;&#160;&#160; at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610)</p><p>&#160;&#160;&#160; at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:355)</p><p>&#160;&#160;&#160; at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:164)</p><p>&#160;&#160;&#160; at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:249)</p><p>&#160;&#160;&#160; at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:228)</p><p>&#160;&#160;&#160; at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:275)</p><p>&#160;&#160;&#160; at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251)</p><p>&#160;&#160;&#160; at org.eclipse.jdt.internal.ui.navigator.OpenAndExpand.run(OpenAndExpand.java:50)</p><p>&#160;&#160;&#160; at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221)</p><p>&#160;&#160;&#160; at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:185)</p><p>&#160;&#160;&#160; at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)</p><p>&#160;&#160;&#160; at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:866)</p><p>&#160;&#160;&#160; at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)</p><p>&#160;&#160;&#160; at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)</p><p>&#160;&#160;&#160; at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:864)</p><p>&#160;&#160;&#160; at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1152)</p><p>&#160;&#160;&#160; at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:462)</p><p>&#160;&#160;&#160; at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1256)</p><p>&#160;&#160;&#160; at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275)</p><p>&#160;&#160;&#160; at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:269)</p><p>&#160;&#160;&#160; at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165)</p><p>&#160;&#160;&#160; at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)</p><p>&#160;&#160;&#160; at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)</p><p>&#160;&#160;&#160; at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)</p><p>&#160;&#160;&#160; at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)</p><p>&#160;&#160;&#160; at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)</p><p>&#160;&#160;&#160; at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)</p><p>&#160;&#160;&#160; at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)</p><p>&#160;&#160;&#160; at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)</p><p>&#160;&#160;&#160; at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)</p><p>&#160;&#160;&#160; at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)</p><p>&#160;&#160;&#160; at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)</p><p>&#160;&#160;&#160; at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)</p><p>&#160;&#160;&#160; at java.lang.reflect.Method.invoke(Method.java:597)</p><p>&#160;&#160;&#160; at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)</p><p>&#160;&#160;&#160; at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)</p><p>&#160;&#160;&#160; at org.eclipse.equinox.launcher.Main.run(Main.java:1410)</p><p>Caused by: java.lang.ClassNotFoundException: org.eclipse.jpt.common.utility.internal.StatefulCommandExecutor</p><p>&#160;&#160;&#160; at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)</p><p>&#160;&#160;&#160; at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)</p><p>&#160;&#160;&#160; at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)</p><p>&#160;&#160;&#160; at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)</p><p>&#160;&#160;&#160; at java.lang.ClassLoader.loadClass(ClassLoader.java:247)</p><p>&#160;&#160;&#160; ... 111 more</p></blockquote><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>Can someone confirm this effekt?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>Regards,</p><p>Lars</p></div>

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