[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-7914) org.drools.eclipse.core.DefaultRuleGroup cannot be cast to org.eclipse.emf.ecore.EObject

org.drools.eclipse.core.DefaultRuleGroup cannot be cast to org.eclipse.emf.ecore.EObject ---------------------------------------------------------------------------------------- Key: JBIDE-7914 URL: https://issues.jboss.org/browse/JBIDE-7914 Project: Tools (JBoss Tools) Issue Type: Bug Components: drools Affects Versions: 3.2.0.Beta2 Reporter: Vitali Yemialyanchyk Assignee: Kris Verlaenen Attachments: screenshot-1.jpg 1) Drools workbench -> New drools project -> any proj name -> check all checkboxes -> other by default; 2) open Sample.drl; 3) in Outline view -> click on nodes -> click on *default* -> get exception: org.drools.eclipse.core.DefaultRuleGroup cannot be cast to org.eclipse.emf.ecore.EObject java.lang.ClassCastException: org.drools.eclipse.core.DefaultRuleGroup cannot be cast to org.eclipse.emf.ecore.EObject at com.metamatrix.modeler.internal.ui.actions.workers.ModelObjectWorker.isReadOnly(ModelObjectWorker.java:134) at com.metamatrix.modeler.internal.ui.actions.workers.CloneWorker.setEnabledState(CloneWorker.java:58) at com.metamatrix.modeler.internal.ui.actions.workers.ModelObjectWorker.selectionChanged(ModelObjectWorker.java:181) at com.metamatrix.modeler.internal.ui.actions.DesignerUiPropertyTester.isCloneAllowed(DesignerUiPropertyTester.java:91) at com.metamatrix.modeler.internal.ui.actions.DesignerUiPropertyTester.test(DesignerUiPropertyTester.java:45) at org.eclipse.core.internal.expressions.Property.test(Property.java:58) at org.eclipse.core.internal.expressions.TestExpression.evaluate(TestExpression.java:99) at org.eclipse.ui.internal.services.EvaluationResultCache.evaluate(EvaluationResultCache.java:74) at org.eclipse.ui.internal.services.ExpressionAuthority.evaluate(ExpressionAuthority.java:165) at org.eclipse.ui.internal.services.EvaluationAuthority.refsWithSameExpression(EvaluationAuthority.java:155) at org.eclipse.ui.internal.services.EvaluationAuthority.sourceChanged(EvaluationAuthority.java:129) at org.eclipse.ui.internal.services.ExpressionAuthority.sourceChanged(ExpressionAuthority.java:311) at org.eclipse.ui.internal.services.ExpressionAuthority.sourceChanged(ExpressionAuthority.java:302) at org.eclipse.ui.AbstractSourceProvider.fireSourceChanged(AbstractSourceProvider.java:80) at org.eclipse.ui.internal.services.WorkbenchSourceProvider.selectionChanged(WorkbenchSourceProvider.java:177) at org.eclipse.ui.internal.AbstractSelectionService.fireSelection(AbstractSelectionService.java:156) at org.eclipse.ui.internal.AbstractSelectionService$1.selectionChanged(AbstractSelectionService.java:62) at org.eclipse.ui.part.PageBookView$5.run(PageBookView.java:255) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.runtime.Platform.run(Platform.java:888) at org.eclipse.ui.part.PageBookView$SelectionManager.selectionChanged(PageBookView.java:253) at org.eclipse.ui.part.PageBookView$SelectionProvider.selectionChanged(PageBookView.java:319) at org.eclipse.ui.part.PageBookView.pageSelectionChanged(PageBookView.java:896) at org.eclipse.ui.part.PageBookView.access$2(PageBookView.java:891) at org.eclipse.ui.part.PageBookView$2.selectionChanged(PageBookView.java:163) at org.eclipse.ui.views.contentoutline.ContentOutlinePage$1.run(ContentOutlinePage.java:99) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.views.contentoutline.ContentOutlinePage.fireSelectionChanged(ContentOutlinePage.java:97) at org.eclipse.ui.views.contentoutline.ContentOutlinePage.selectionChanged(ContentOutlinePage.java:157) at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:162) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175) at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160) at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2162) at org.eclipse.jface.viewers.StructuredViewer.handleSelect(StructuredViewer.java:1190) at org.eclipse.jface.viewers.StructuredViewer$4.widgetSelected(StructuredViewer.java:1220) at org.eclipse.jface.util.OpenStrategy.fireSelectionEvent(OpenStrategy.java:228) at org.eclipse.jface.util.OpenStrategy.access$4(OpenStrategy.java:222) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:389) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) 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.equinox.launcher.Main.invokeFramework(Main.java:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407)