[jbosstools-issues] [JBoss JIRA] (JBIDE-26600) Cannot remove JSF capabilities from JSF project
Ondrej Dockal (Jira)
issues at jboss.org
Wed Oct 30 07:45:00 EDT 2019
[ https://issues.jboss.org/browse/JBIDE-26600?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13806072#comment-13806072 ]
Ondrej Dockal commented on JBIDE-26600:
---------------------------------------
Another NPE:
{code}
eclipse.buildId=12.13.0.GA-v20191024-0752-B5215
java.version=11.0.4
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments: -product com.jboss.devstudio.core.product
Command-line arguments: -os linux -ws gtk -arch x86_64 -product com.jboss.devstudio.core.product
org.eclipse.jst.jee
Error
Wed Oct 30 12:41:34 CET 2019
Problems occurred when invoking code from plug-in: "org.eclipse.jst.jee".
java.lang.NullPointerException
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.createModelResource(JEE5ModelProvider.java:209)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.getModelResource(JEE5ModelProvider.java:190)
at org.eclipse.jst.jee.model.internal.Web25ModelProvider.getModelObject(Web25ModelProvider.java:44)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.getModelObject(JEE5ModelProvider.java:233)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.getXmlWebApp(Web25MergedModelProvider.java:59)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.internalModelChanged(Web25MergedModelProvider.java:155)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.xmlModelChanged(Web25MergedModelProvider.java:146)
at org.eclipse.jst.jee.model.internal.common.AbstractMergedModelProvider$XmlModelListener.modelsChanged(AbstractMergedModelProvider.java:91)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider$NotifyRunner.run(JEE5ModelProvider.java:470)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.notifyListeners(JEE5ModelProvider.java:445)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.resourceChanged(JEE5ModelProvider.java:117)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider$ResourceAdapter.notifyChanged(JEE5ModelProvider.java:81)
at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.setModified(ResourceImpl.java:1867)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl$ContentsEList.modified(ResourceImpl.java:486)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl$ContentsEList.didRemove(ResourceImpl.java:447)
at org.eclipse.emf.common.util.AbstractEList.didClear(AbstractEList.java:170)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl$ContentsEList.didClear(ResourceImpl.java:466)
at org.eclipse.emf.common.util.BasicEList.clear(BasicEList.java:639)
at org.eclipse.emf.common.notify.impl.NotifyingListImpl.doClear(NotifyingListImpl.java:1158)
at org.eclipse.emf.common.notify.impl.NotifyingListImpl.clear(NotifyingListImpl.java:1085)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.doUnload(ResourceImpl.java:1699)
at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doUnload(XMLResourceImpl.java:720)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.unload(ResourceImpl.java:1721)
at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl.removeAndUnloadAllResources(ProjectResourceSetImpl.java:885)
at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl.release(ProjectResourceSetImpl.java:866)
at org.eclipse.wst.common.internal.emfworkbench.integration.ResourceSetWorkbenchEditSynchronizer.release(ResourceSetWorkbenchEditSynchronizer.java:222)
at org.eclipse.jem.util.emf.workbench.ResourceSetWorkbenchSynchronizer.resourceChanged(ResourceSetWorkbenchSynchronizer.java:184)
at org.eclipse.wst.common.internal.emfworkbench.integration.ResourceSetWorkbenchEditSynchronizer.resourceChanged(ResourceSetWorkbenchEditSynchronizer.java:137)
at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java:305)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:295)
at org.eclipse.core.internal.events.NotificationManager.handleEvent(NotificationManager.java:271)
at org.eclipse.core.internal.resources.Workspace.broadcastEvent(Workspace.java:374)
at org.eclipse.core.internal.resources.Resource.broadcastPreDeleteEvent(Resource.java:1828)
at org.eclipse.core.internal.resources.Resource.delete(Resource.java:739)
at org.eclipse.core.internal.resources.Project.delete(Project.java:322)
at org.eclipse.ltk.core.refactoring.resource.DeleteResourceChange.perform(DeleteResourceChange.java:158)
at org.eclipse.ltk.core.refactoring.CompositeChange.perform(CompositeChange.java:283)
at org.eclipse.ltk.core.refactoring.CompositeChange.perform(CompositeChange.java:283)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation$1.run(PerformChangeOperation.java:260)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2295)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2322)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation.executeChange(PerformChangeOperation.java:308)
at org.eclipse.ltk.internal.ui.refactoring.UIPerformChangeOperation.executeChange(UIPerformChangeOperation.java:99)
at org.eclipse.ltk.core.refactoring.PerformChangeOperation.run(PerformChangeOperation.java:219)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2295)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2322)
at org.eclipse.ltk.internal.ui.refactoring.WorkbenchRunnableAdapter.run(WorkbenchRunnableAdapter.java:89)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)
{code}
And
{code}
eclipse.buildId=12.13.0.GA-v20191024-0752-B5215
java.version=11.0.4
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Framework arguments: -product com.jboss.devstudio.core.product
Command-line arguments: -os linux -ws gtk -arch x86_64 -product com.jboss.devstudio.core.product
org.eclipse.jst.jee.web
Error
Wed Oct 30 12:41:23 CET 2019
java.lang.NullPointerException
org.eclipse.jst.jee.model.internal.mergers.ModelException: java.lang.NullPointerException
at org.eclipse.jst.jee.model.internal.mergers.WebAppMerger.process(WebAppMerger.java:90)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.mergeWithModel(Web25MergedModelProvider.java:182)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.merge(Web25MergedModelProvider.java:164)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.internalModelChanged(Web25MergedModelProvider.java:155)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.xmlModelChanged(Web25MergedModelProvider.java:146)
at org.eclipse.jst.jee.model.internal.common.AbstractMergedModelProvider$XmlModelListener.modelsChanged(AbstractMergedModelProvider.java:91)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider$NotifyRunner.run(JEE5ModelProvider.java:470)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.notifyListeners(JEE5ModelProvider.java:445)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.resourceChanged(JEE5ModelProvider.java:117)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider$ResourceAdapter.notifyChanged(JEE5ModelProvider.java:81)
at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.setModified(ResourceImpl.java:1867)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl$ModificationTrackingAdapter.notifyChanged(ResourceImpl.java:1756)
at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424)
at org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1027)
at org.eclipse.emf.common.notify.impl.NotificationImpl.dispatch(NotificationImpl.java:1032)
at org.eclipse.emf.ecore.util.BasicFeatureMap.addUnique(BasicFeatureMap.java:1593)
at org.eclipse.emf.ecore.util.BasicFeatureMap.addUnique(BasicFeatureMap.java:1553)
at org.eclipse.emf.ecore.util.FeatureMapUtil$FeatureEList.addUnique(FeatureMapUtil.java:767)
at org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.setValue(XMLHelperImpl.java:1173)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.setFeatureValue(XMLHandler.java:2710)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.setFeatureValue(XMLHandler.java:2700)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFeatureType(XMLHandler.java:2221)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObject(XMLHandler.java:2089)
at org.eclipse.emf.ecore.xmi.impl.XMIHandler.createObject(XMIHandler.java:151)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleFeature(XMLHandler.java:1868)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1048)
at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:82)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:1026)
at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:720)
at org.eclipse.emf.ecore.xmi.impl.XMIHandler.startElement(XMIHandler.java:190)
at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:510)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:374)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2710)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112)
at java.xml/com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:534)
at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:888)
at java.xml/com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:824)
at java.xml/com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1216)
at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635)
at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:324)
at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:175)
at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:261)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1563)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1342)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:259)
at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl.demandLoad(ProjectResourceSetImpl.java:811)
at org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:274)
at org.eclipse.jem.internal.util.emf.workbench.ProjectResourceSetImpl.getResource(ProjectResourceSetImpl.java:1003)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.getModelResource(JEE5ModelProvider.java:187)
at org.eclipse.jst.jee.model.internal.Web25ModelProvider.getModelObject(Web25ModelProvider.java:44)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.getModelObject(JEE5ModelProvider.java:233)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.getXmlWebApp(Web25MergedModelProvider.java:59)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.internalModelChanged(Web25MergedModelProvider.java:155)
at org.eclipse.jst.jee.model.internal.Web25MergedModelProvider.xmlModelChanged(Web25MergedModelProvider.java:146)
at org.eclipse.jst.jee.model.internal.common.AbstractMergedModelProvider$XmlModelListener.modelsChanged(AbstractMergedModelProvider.java:91)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider$NotifyRunner.run(JEE5ModelProvider.java:470)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.notifyListeners(JEE5ModelProvider.java:445)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider.resourceChanged(JEE5ModelProvider.java:117)
at org.eclipse.jst.jee.model.internal.JEE5ModelProvider$ResourceAdapter.notifyChanged(JEE5ModelProvider.java:81)
at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:424)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.setModified(ResourceImpl.java:1867)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl$ContentsEList.modified(ResourceImpl.java:486)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl$ContentsEList.didRemove(ResourceImpl.java:447)
at org.eclipse.emf.common.util.AbstractEList.didClear(AbstractEList.java:170)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl$ContentsEList.didClear(ResourceImpl.java:466)
at org.eclipse.emf.common.util.BasicEList.clear(BasicEList.java:639)
at org.eclipse.emf.common.notify.impl.NotifyingListImpl.doClear(NotifyingListImpl.java:1158)
at org.eclipse.emf.common.notify.impl.NotifyingListImpl.clear(NotifyingListImpl.java:1085)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.doUnload(ResourceImpl.java:1699)
at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doUnload(XMLResourceImpl.java:720)
at org.eclipse.emf.ecore.resource.impl.ResourceImpl.unload(ResourceImpl.java:1721)
at org.eclipse.wst.common.internal.emfworkbench.integration.ResourceSetWorkbenchEditSynchronizer.processDeferredUnloadedResources(ResourceSetWorkbenchEditSynchronizer.java:164)
at org.eclipse.wst.common.internal.emfworkbench.integration.ResourceSetWorkbenchEditSynchronizer.processDeferredResources(ResourceSetWorkbenchEditSynchronizer.java:232)
at org.eclipse.wst.common.internal.emfworkbench.integration.ResourceSetWorkbenchEditSynchronizer.resourceChanged(ResourceSetWorkbenchEditSynchronizer.java:141)
at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java:305)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:45)
at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:295)
at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:158)
at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:379)
at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1502)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2308)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2322)
at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:131)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:122)
Caused by: java.lang.NullPointerException
at org.eclipse.jst.jee.model.internal.mergers.WebAppMerger.getArtifactFromList(WebAppMerger.java:307)
at org.eclipse.jst.jee.model.internal.mergers.WebApp3Merger.mergeServletMappings(WebApp3Merger.java:48)
at org.eclipse.jst.jee.model.internal.mergers.WebApp3Merger.mergeServlets(WebApp3Merger.java:36)
at org.eclipse.jst.jee.model.internal.mergers.WebAppMerger.process(WebAppMerger.java:79)
... 88 more
{code}
> Cannot remove JSF capabilities from JSF project
> -----------------------------------------------
>
> Key: JBIDE-26600
> URL: https://issues.jboss.org/browse/JBIDE-26600
> Project: Tools (JBoss Tools)
> Issue Type: Bug
> Components: jsf
> Affects Versions: 4.11.0.Final
> Environment: Fedora 29, Java 11.0.2
> Reporter: Ondrej Dockal
> Assignee: Jeff MAURY
> Priority: Critical
> Fix For: 4.13.0.Final
>
>
> Removing JSF capabilities introduces Command 'org.jboss.tools.jsf.ui.project.configure.disable' failed error.
> {code}
> eclipse.buildId=12.11.0.GA-v20190321-1925-B4244
> java.version=11.0.2
> java.vendor=Oracle Corporation
> BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
> Framework arguments: -product com.jboss.devstudio.core.product
> Command-line arguments: -data file:/home/odockal/workspace_12110Ga-Staging/ -os linux -ws gtk -arch x86_64 -product com.jboss.devstudio.core.product
> org.eclipse.e4.ui.workbench
> Error
> Wed Mar 27 14:32:09 CET 2019
> Command 'org.jboss.tools.jsf.ui.project.configure.disable' failed
> org.eclipse.core.commands.ExecutionException: Error executing 'org.jboss.tools.jsf.ui.project.configure.disable': java.lang.NullPointerException
> at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:170)
> at org.eclipse.core.commands.Command.executeWithChecks(Command.java:497)
> at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:490)
> at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:213)
> at org.eclipse.e4.ui.workbench.renderers.swt.HandledContributionItem.executeItem(HandledContributionItem.java:438)
> at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem.handleWidgetSelection(AbstractContributionItem.java:449)
> at org.eclipse.e4.ui.workbench.renderers.swt.AbstractContributionItem.lambda$2(AbstractContributionItem.java:475)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:89)
> at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5783)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1411)
> at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:5051)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4579)
> at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1173)
> at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
> at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1062)
> at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:155)
> at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:644)
> at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:338)
> at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:566)
> at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
> at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:155)
> at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203)
> at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
> at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
> at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:661)
> at org.eclipse.equinox.launcher.Main.basicRun(Main.java:597)
> at org.eclipse.equinox.launcher.Main.run(Main.java:1476)
> at org.eclipse.equinox.launcher.Main.main(Main.java:1449)
> Caused by: org.eclipse.e4.core.di.InjectionException: java.lang.NullPointerException
> at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:68)
> at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:320)
> at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:254)
> at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:173)
> at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:156)
> ... 33 more
> Caused by: java.lang.NullPointerException
> at org.jboss.tools.jsf.model.handlers.RemoveJSFNatureContribution.execute(RemoveJSFNatureContribution.java:40)
> at org.jboss.tools.common.model.handlers.RemoveModelNatureHandler.executeHandler(RemoveModelNatureHandler.java:99)
> at org.jboss.tools.common.meta.action.impl.XActionImpl.executeHandler(XActionImpl.java:65)
> at org.jboss.tools.common.model.ui.action.XModelObjectAction.actionPerformed(XModelObjectAction.java:96)
> at org.jboss.tools.common.model.ui.action.XModelObjectActionInvoker.execute(XModelObjectActionInvoker.java:36)
> at org.jboss.tools.common.meta.action.XActionInvoker.invoke(XActionInvoker.java:53)
> at org.jboss.tools.common.meta.action.XActionInvoker.invoke(XActionInvoker.java:40)
> at org.jboss.tools.common.model.ui.internal.handlers.ModelResourceHandler.doRun(ModelResourceHandler.java:94)
> at org.jboss.tools.common.model.ui.internal.handlers.ModelResourceHandler.execute(ModelResourceHandler.java:74)
> at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:294)
> at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:96)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:58)
> ... 37 more
> {code}
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