Description Adam Horenek 2006-03-19 13:48:03 EST

1)I create java project and in it I create visual classes ClassA.java and ClassB.java (I use style Composite in the "New Visual class wizard).

After 1) I have both files opened ClassA and ClassB in the editor.

2) I close the ClassB editor and exit the Eclipse.

After 2) The class ClassA is opened at the time of exiting Eclipse.

3) I open the eclipse again with the same workspace as before. The Eclipse starts to load the ClassA. During that time I navigate in the "Package explorer" view to the package with class ClassB and make double click to open it.
(During that time the progress bar displays some VE related loading info).

The load of the ClassB ends with uneditable Visual class and sometimes with error message window containing "Error trying to set new file into editor Reason: java.lang.NullPointerException" error message. After that error I am not able to work anymore with the class ClassB, even if I close it and open it again
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This is quite serious. It can happen quite often that you leave some class you are working on open when exiting Eclipse and after launching it again you could want to edit different file and not wait until the first one loads.

Here are error cuta from the error log(there are three exceptions thrown):

1)
java.lang.IllegalArgumentException: The feature 'clientArea' is not a valid feature
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eOpenIsSet(BasicEObjectImpl.java:797)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eIsSet(BasicEObjectImpl.java:751)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveFeatures(XMLSaveImpl.java:1042)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElementID(XMLSaveImpl.java:2360)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElement(XMLSaveImpl.java:971)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElement(XMLSaveImpl.java:857)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveContainedSingle(XMLSaveImpl.java:2076)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveFeatures(XMLSaveImpl.java:1311)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElementID(XMLSaveImpl.java:2360)
at org.eclipse.emf.ecore.xmi.impl.XMISaveImpl.writeTopObjects(XMISaveImpl.java:79)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.traverse(XMLSaveImpl.java:498)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.save(XMLSaveImpl.java:221)
at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doSave(XMLResourceImpl.java:196)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(ResourceImpl.java:930)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(ResourceImpl.java:850)
at org.eclipse.ve.internal.java.codegen.util.VEModelCacheUtility.doSaveCache(VEModelCacheUtility.java:158)
at org.eclipse.ve.internal.java.codegen.core.JavaSourceTranslator.primDoSave(JavaSourceTranslator.java:1389)
at org.eclipse.ve.internal.java.codegen.core.JavaSourceTranslator.doSave(JavaSourceTranslator.java:1403)
at org.eclipse.ve.internal.java.codegen.core.JavaSourceTranslator$3.doRun(JavaSourceTranslator.java:948)
at org.eclipse.ve.internal.java.codegen.util.ReverseParserJob.run(ReverseParserJob.java:56)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:58)


2)
java.lang.NullPointerException
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eDerivedStructuralFeatureID(BasicEObjectImpl.java:987)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:543)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:538)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:533)
at org.eclipse.ve.internal.java.core.JavaBeanTreeEditPart.getExistingEvents(JavaBeanTreeEditPart.java:395)
at org.eclipse.ve.internal.java.core.JavaBeanTreeEditPart.getModelChildren(JavaBeanTreeEditPart.java:343)
at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:709)
at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:677)
at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:235)
at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:198)
at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:727)
at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:677)
at org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEditorPart.setRootModel(JavaVisualEditorPart.java:504)
at org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEditorPart.initializeViewers(JavaVisualEditorPart.java:1121)
at org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEditorPart$13.run(JavaVisualEditorPart.java:2098)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3264)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2910)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1899)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1863)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:417)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:106)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:99)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:374)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:169)
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:338)
at org.eclipse.core.launcher.Main.basicRun(Main.java:282)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)

3)

org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException)
at org.eclipse.swt.SWT.error(SWT.java:3349)
at org.eclipse.swt.SWT.error(SWT.java:3272)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:126)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3264)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2910)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1899)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1863)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:417)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:106)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:99)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:374)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:169)
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:338)
at org.eclipse.core.launcher.Main.basicRun(Main.java:282)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: java.lang.NullPointerException
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eDerivedStructuralFeatureID(BasicEObjectImpl.java:987)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:543)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:538)
at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:533)
at org.eclipse.ve.internal.java.core.JavaBeanTreeEditPart.getExistingEvents(JavaBeanTreeEditPart.java:395)
at org.eclipse.ve.internal.java.core.JavaBeanTreeEditPart.getModelChildren(JavaBeanTreeEditPart.java:343)
at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:709)
at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:677)
at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:235)
at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:198)
at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:727)
at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:677)
at org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEditorPart.setRootModel(JavaVisualEditorPart.java:504)
at org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEditorPart.initializeViewers(JavaVisualEditorPart.java:1121)
at org.eclipse.ve.internal.java.codegen.editorpart.JavaVisualEditorPart$13.run(JavaVisualEditorPart.java:2098)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
... 20 more