Hi all, I had a processdefinition.xml used to work fine. Today, when I tried to open it in jBPM GPD, I got an exception and it didn't open anymore. Then, I created a new process definition and, smartly, copied the xml code from the first process definition I had to this new one. As a result, it didn't open either. Guess what must be happening? The error raised is: | java.lang.ClassCastException: org.jbpm.gd.jpdl.model.ProcessDefinition | at org.jbpm.gd.jpdl.editor.JpdlContentProvider.findDestination(Unknown Source) | at org.jbpm.gd.common.editor.AbstractContentProvider.postProcess(Unknown Source) | at org.jbpm.gd.common.editor.AbstractContentProvider.processRootContainer(Unknown Source) | at org.jbpm.gd.common.editor.AbstractContentProvider.addNotationInfo(Unknown Source) | at org.jbpm.gd.common.editor.Editor.initGraphPage(Unknown Source) | at org.jbpm.gd.common.editor.Editor.createPages(Unknown Source) | at org.jbpm.gd.jpdl.editor.JpdlEditor.createPages(Unknown Source) | at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:283) | at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:661) | at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:426) | at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592) | at org.eclipse.ui.internal.PartPane.setVisible(PartPane.java:299) | at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:179) | at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:268) | at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65) | at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:400) | at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1256) | at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1209) | at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1604) | at org.eclipse.ui.internal.PartStack.add(PartStack.java:499) | at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103) | at org.eclipse.ui.internal.PartStack.add(PartStack.java:485) | at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112) | at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:63) | 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:774) | at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:673) | at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:634) | at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2719) | at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2633) | at org.eclipse.ui.internal.WorkbenchPage.access$12(WorkbenchPage.java:2625) | at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2577) | at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67) | at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2572) | at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2556) | at org.eclipse.ui.actions.OpenWithMenu.openEditor(OpenWithMenu.java:340) | at org.eclipse.ui.actions.OpenWithMenu.access$0(OpenWithMenu.java:328) | at org.eclipse.ui.actions.OpenWithMenu$2.handleEvent(OpenWithMenu.java:190) | at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) | at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1495) | at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1519) | at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1504) | at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1295) | at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348) | at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2952) | at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389) | at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353) | at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219) | at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466) | at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289) | at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461) | 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:153) | 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:363) | at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176) | 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:504) | at org.eclipse.equinox.launcher.Main.basicRun(Main.java:443) | at org.eclipse.equinox.launcher.Main.run(Main.java:1169) | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167296#... 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