Bug 74227

Description Gary Sevitsky 2004-09-18 09:05:11 EDT

This bug shows up consistently when using the eMF code generator (both 1.x and 
2.0), in Eclipse (both 2.x and 3.0), preventing the code generator from 
completing. It appears to be caused by JDOM not working properly with 
initializers in anonymous classes.  

The eMF scenario in which it occurs is when regenerating an eMF model from 
annotated Java.  Ed Merks from IBM's eMF development (merks@ca.ibm.com) was 
able to narrow down the problem to this small example:

package org.example;

public interface Sample {

    Object x = new Object()
    {
        {
            System.err.println("**");
        }
   
    };
}

I get the following exception and stack trace:

>>> org.eclipse.jdt.core.jdom.DOMException: Attempt to add child to node that 
cannot have children
>>>     at org.eclipse.jdt.internal.core.jdom.DOMNode.basicAddChild
(DOMNode.java:344)
>>>     at org.eclipse.jdt.internal.core.jdom.AbstractDOMBuilder.addChild
(AbstractDOMBuilder.java:129)
>>>     at org.eclipse.jdt.internal.core.jdom.DOMBuilder.addChild
(DOMBuilder.java:139)
>>>     at org.eclipse.jdt.internal.core.jdom.DOMBuilder.acceptInitializer
(DOMBuilder.java:99)
>>>     at 
org.eclipse.jdt.internal.compiler.DocumentElementParser.consumeClassBodyDeclara
tion(DocumentElementParser.java:131)
>>>     at org.eclipse.jdt.internal.compiler.parser.Parser.consumeRule
(Parser.java:2695)
>>>     at org.eclipse.jdt.internal.compiler.parser.Parser.parse
(Parser.java:5370)
>>>     at org.eclipse.jdt.internal.compiler.DocumentElementParser.parseType
(DocumentElementParser.java:1204)
>>>     at org.eclipse.jdt.internal.core.jdom.DOMBuilder.createType
(DOMBuilder.java:266)
>>>     at org.eclipse.jdt.core.jdom.DOMFactory.createType(DOMFactory.java:157)
>>>     at org.eclipse.jdt.internal.core.jdom.DOMType.getDetailedNode
(DOMType.java:389)
>>>     at org.eclipse.jdt.internal.core.jdom.DOMNode.becomeDetailed
(DOMNode.java:390)
>>>     at org.eclipse.jdt.internal.core.jdom.DOMMember.getComment
(DOMMember.java:218)
>>>     at 
org.eclipse.emf.codegen.ecore.java2ecore.JavaEcoreBuilder.analyzeType
(JavaEcoreBuilder.java:739)
>>>     at 
org.eclipse.emf.codegen.ecore.java2ecore.JavaEcoreBuilder.analyzeCompilationUni
t(JavaEcoreBuilder.java:719)
>>>     at org.eclipse.emf.codegen.ecore.java2ecore.JavaEcoreBuilder.traverse
(JavaEcoreBuilder.java:701)
>>>     at org.eclipse.emf.codegen.ecore.java2ecore.JavaEcoreBuilder.traverse
(JavaEcoreBuilder.java:677)
>>>     at org.eclipse.emf.codegen.ecore.java2ecore.JavaEcoreBuilder.traverse
(JavaEcoreBuilder.java:681)
>>>     at org.eclipse.emf.codegen.ecore.java2ecore.JavaEcoreBuilder.traverse
(JavaEcoreBuilder.java:681)
>>>     at org.eclipse.emf.codegen.ecore.java2ecore.JavaEcoreBuilder.run
(JavaEcoreBuilder.java:269)
>>>     at 
org.eclipse.emf.codegen.ecore.genmodel.presentation.EMFProjectWizard$40.execute
(EMFProjectWizard.java:2693)
>>>     at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run
(WorkspaceModifyOperation.java:91)
>>>     at org.eclipse.core.internal.resources.Workspace.run
(Workspace.java:1673)
>>>     at org.eclipse.ui.actions.WorkspaceModifyOperation.run
(WorkspaceModifyOperation.java:105)
>>>     at org.eclipse.jface.operation.ModalContext.runInCurrentThread
(ModalContext.java:303)
>>>     at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:253)
>>>     at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:752)
>>>     at 
org.eclipse.emf.codegen.ecore.genmodel.presentation.EMFProjectWizard$PackagePag
e.refreshPackagesTable(EMFProjectWizard.java:2735)
>>>     at 
org.eclipse.emf.codegen.ecore.genmodel.presentation.EMFProjectWizard$PackagePag
e.setVisible(EMFProjectWizard.java:2138)
>>>     at org.eclipse.jface.wizard.WizardDialog.updateForPage
(WizardDialog.java:937)
>>>     at org.eclipse.jface.wizard.WizardDialog.access$2
(WizardDialog.java:920)
>>>     at org.eclipse.jface.wizard.WizardDialog$4.run(WizardDialog.java:911)
>>>     at org.eclipse.swt.custom.BusyIndicator.showWhile
(BusyIndicator.java:69)
>>>     at org.eclipse.jface.wizard.WizardDialog.showPage
(WizardDialog.java:909)
>>>     at org.eclipse.jface.wizard.WizardDialog.nextPressed
(WizardDialog.java:680)
>>>     at org.eclipse.jface.wizard.WizardDialog.buttonPressed
(WizardDialog.java:300)
>>>     at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:506)
>>>     at org.eclipse.swt.widgets.TypedListener.handleEvent
(TypedListener.java:89)
>>>     at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
>>>     at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796)
>>>     at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2772)
>>>     at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2431)
>>>     at org.eclipse.jface.window.Window.runEventLoop(Window.java:668)
>>>     at org.eclipse.jface.window.Window.open(Window.java:648)
>>>     at 
org.eclipse.emf.codegen.ecore.genmodel.presentation.GenModelActionBarContributo
r$ReloadAction.run(GenModelActionBarContributor.java:165)
>>>     at org.eclipse.jface.action.Action.runWithEvent(Action.java:881)
>>>     at 
org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection
(ActionContributionItem.java:915)
>>>     at org.eclipse.jface.action.ActionContributionItem.access$2
(ActionContributionItem.java:866)
>>>     at org.eclipse.jface.action.ActionContributionItem$7.handleEvent
(ActionContributionItem.java:785)
>>>     at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
>>>     at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796)
>>>     at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2772)
>>>     at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2431)
>>>     at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1377)
>>>     at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1348)
>>>     at org.eclipse.ui.internal.Workbench.createAndRunWorkbench
(Workbench.java:254)
>>>     at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141)
>>>     at org.eclipse.ui.internal.ide.IDEApplication.run
(IDEApplication.java:96)
>>>     at org.eclipse.core.internal.runtime.PlatformActivator$1.run
(PlatformActivator.java:335)
>>>     at org.eclipse.core.runtime.adaptor.EclipseStarter.run
(EclipseStarter.java:273)
>>>     at org.eclipse.core.runtime.adaptor.EclipseStarter.run
(EclipseStarter.java:129)
>>>     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.basicRun(Main.java:183)
>>>     at org.eclipse.core.launcher.Main.run(Main.java:644)
>>>     at org.eclipse.core.launcher.Main.main(Main.java:628)
>>>
>