Description Vitali Yemialyanchyk 2010-12-14 12:22:40 EST

Build Identifier: I20100608-0911

https://issues.jboss.org/browse/JBIDE-7883 - initially the issue was find here.

Unable to create editor ID org.eclipse.jst.pagedesigner.PageDesignerEditor: An unexpected exception was thrown.

java.lang.NullPointerException
	at org.eclipse.jst.j2ee.componentcore.J2EEModuleVirtualComponent.getReferences(J2EEModuleVirtualComponent.java:176)
	at org.eclipse.jst.j2ee.internal.web.classpath.WebAppLibrariesContainer.computeReferences(WebAppLibrariesContainer.java:100)
	at org.eclipse.jst.common.jdt.internal.classpath.FlexibleProjectContainer.computeClasspathEntries(FlexibleProjectContainer.java:183)
	at org.eclipse.jst.j2ee.internal.web.classpath.WebAppLibrariesContainer.computeClasspathEntries(WebAppLibrariesContainer.java:119)
	at org.eclipse.jst.common.jdt.internal.classpath.FlexibleProjectContainer.<init>(FlexibleProjectContainer.java:120)
	at org.eclipse.jst.j2ee.internal.web.classpath.WebAppLibrariesContainer.<init>(WebAppLibrariesContainer.java:58)
	at org.eclipse.jst.j2ee.internal.web.classpath.WebAppLibrariesContainerInitializer.initialize(WebAppLibrariesContainerInitializer.java:35)
	at org.eclipse.jdt.internal.core.JavaModelManager.initializeContainer(JavaModelManager.java:2707)
	at org.eclipse.jdt.internal.core.JavaModelManager.getClasspathContainer(JavaModelManager.java:1850)
	at org.eclipse.jdt.core.JavaCore.getClasspathContainer(JavaCore.java:2705)
	at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2645)
	at org.eclipse.jdt.internal.core.JavaProject.resolveClasspath(JavaProject.java:2783)
	at org.eclipse.jdt.internal.core.JavaProject.getResolvedClasspath(JavaProject.java:1948)
	at org.eclipse.jst.jsp.core.taglib.ProjectDescription.ensureUpTodate(ProjectDescription.java:994)
	at org.eclipse.jst.jsp.core.taglib.ProjectDescription.getAvailableTaglibRecords(ProjectDescription.java:1085)
	at org.eclipse.jst.jsp.core.taglib.TaglibIndex.internalGetAvailableTaglibRecords(TaglibIndex.java:847)
	at org.eclipse.jst.jsp.core.taglib.TaglibIndex.getAvailableTaglibRecords(TaglibIndex.java:506)
	at org.eclipse.jst.jsf.core.metadata.internal.TaglibMetaDataLocator.locateMetaDataModelProviders(TaglibMetaDataLocator.java:69)
	at org.eclipse.jst.jsf.common.metadata.internal.DomainLoadingStrategy.locateMetaDataSourceInstances(DomainLoadingStrategy.java:143)
	at org.eclipse.jst.jsf.common.metadata.internal.DomainLoadingStrategy.load(DomainLoadingStrategy.java:55)
	at org.eclipse.jst.jsf.common.metadata.internal.MetaDataModel.load(MetaDataModel.java:93)
	at org.eclipse.jst.jsf.common.metadata.internal.MetaDataModelManager.loadMetadata(MetaDataModelManager.java:147)
	at org.eclipse.jst.jsf.common.metadata.internal.MetaDataModelManager.getModel(MetaDataModelManager.java:90)
	at org.eclipse.jst.jsf.common.metadata.query.TaglibDomainMetaDataQueryHelper.getMDModel(TaglibDomainMetaDataQueryHelper.java:205)
	at org.eclipse.jst.jsf.common.metadata.query.TaglibDomainMetaDataQueryHelper.getModel(TaglibDomainMetaDataQueryHelper.java:90)
	at org.eclipse.jst.jsf.common.metadata.query.TaglibDomainMetaDataQueryHelper.getEntities(TaglibDomainMetaDataQueryHelper.java:123)
	at org.eclipse.jst.jsf.common.metadata.query.TaglibDomainMetaDataQueryHelper.getEntity(TaglibDomainMetaDataQueryHelper.java:101)
	at org.eclipse.jst.jsf.common.metadata.query.TaglibDomainMetaDataQueryHelper.getTrait(TaglibDomainMetaDataQueryHelper.java:254)
	at org.eclipse.jst.pagedesigner.dtmanager.DefaultDTInfoFactory.getDTInfo(DefaultDTInfoFactory.java:49)
	at org.eclipse.jst.pagedesigner.dtmanager.DTManager.getDTInfo(DTManager.java:99)
	at org.eclipse.jst.pagedesigner.dtmanager.converter.internal.DTTagConverterFactory.createConverter(DTTagConverterFactory.java:32)
	at org.eclipse.jst.pagedesigner.dtmanager.DTManager.getTagConverter(DTManager.java:65)
	at org.eclipse.jst.pagedesigner.parts.ElementEditPart.getTagConverter(ElementEditPart.java:163)
	at org.eclipse.jst.pagedesigner.parts.ElementEditPart.setModel(ElementEditPart.java:84)
	at org.eclipse.jst.pagedesigner.parts.HTMLEditPartsFactory.createEditPart(HTMLEditPartsFactory.java:69)
	at org.eclipse.gef.editparts.AbstractEditPart.createChild(AbstractEditPart.java:268)
	at org.eclipse.gef.editparts.AbstractEditPart.refreshChildren(AbstractEditPart.java:770)
	at org.eclipse.jst.pagedesigner.parts.DocumentEditPart.refreshChildren(DocumentEditPart.java:134)
	at org.eclipse.jst.pagedesigner.parts.DocumentEditPart.refreshChildren(DocumentEditPart.java:126)
	at org.eclipse.gef.editparts.AbstractEditPart.refresh(AbstractEditPart.java:718)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.refresh(AbstractGraphicalEditPart.java:633)
	at org.eclipse.jst.pagedesigner.parts.DocumentEditPart.refresh(DocumentEditPart.java:114)
	at org.eclipse.gef.editparts.AbstractEditPart.addNotify(AbstractEditPart.java:252)
	at org.eclipse.gef.editparts.AbstractGraphicalEditPart.addNotify(AbstractGraphicalEditPart.java:223)
	at org.eclipse.jst.pagedesigner.parts.NodeEditPart.addNotify(NodeEditPart.java:104)
	at org.eclipse.gef.editparts.AbstractEditPart.addChild(AbstractEditPart.java:211)
	at org.eclipse.gef.editparts.SimpleRootEditPart.setContents(SimpleRootEditPart.java:105)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:617)
	at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:626)
	at org.eclipse.jst.pagedesigner.editors.SimpleGraphicalEditor.setModel(SimpleGraphicalEditor.java:425)
	at org.eclipse.jst.pagedesigner.editors.HTMLEditor.connectDesignPage(HTMLEditor.java:363)
	at org.eclipse.jst.pagedesigner.editors.HTMLEditor.createPages(HTMLEditor.java:443)
	at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:348)
	at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670)
	at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
	at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
	at org.eclipse.ui.internal.EditorAreaHelper.setVisibleEditor(EditorAreaHelper.java:271)
	at org.eclipse.ui.internal.EditorManager.setVisibleEditor(EditorManager.java:1429)
	at org.eclipse.ui.internal.EditorManager$5.runWithException(EditorManager.java:942)
	at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
	at org.eclipse.ui.application.WorkbenchAdvisor.openWindows(WorkbenchAdvisor.java:803)
	at org.eclipse.ui.internal.Workbench$31.runWithException(Workbench.java:1567)
	at org.eclipse.ui.internal.StartupThreading$StartupRunnable.run(StartupThreading.java:31)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2548)
	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)


Reproducible: Always

Steps to Reproduce:
1. download Seam 2.2 Booking Example from here http://anonsvn.jboss.org/repos/jbosstools/workspace/snjeza/seam-examples/booking22.zip
2. import projects into new clean workspace
3. open book.xhtml with Web Page Editor
4. restart workspace (close Eclipse, start Eclipse with test workspace)