[jbosstools-issues] [JBoss JIRA] (JBIDE-12861) NPE when clicking on servlet definition in web.xml

NPE when clicking on servlet definition in web.xml -------------------------------------------------- Key: JBIDE-12861 URL: https://issues.jboss.org/browse/JBIDE-12861 Project: Tools (JBoss Tools) Issue Type: Bug Components: Webservices Affects Versions: 4.0.0.Beta1 Reporter: Jaroslav Jankovič Assignee: Xavier Coulon Fix For: 4.0.0.CR1 I am facing very weird bug today. In web.xml application servlet is defined: {code} <servlet-mapping> <servlet-name>javax.ws.rs.core.Application</servlet-name> <url-pattern>/hello/*</url-pattern> </servlet-mapping> {code} Then sometimes I am getting NPE when clicking on "<servlet-mapping>" tag: {code} org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException) at org.eclipse.swt.SWT.error(SWT.java:4361) at org.eclipse.swt.SWT.error(SWT.java:4276) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3529) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3182) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1029) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:923) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124) 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:353) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584) at org.eclipse.equinox.launcher.Main.run(Main.java:1438) at org.eclipse.equinox.launcher.Main.main(Main.java:1414) Caused by: java.lang.NullPointerException at org.jboss.tools.ws.jaxrs.core.jdt.JdtUtils.getElementAt(JdtUtils.java:188) at org.jboss.tools.ws.jaxrs.core.jdt.JdtUtils.getElementAt(JdtUtils.java:213) at org.jboss.tools.ws.jaxrs.ui.quickfix.JaxrsMarkerResolutionGenerator.getMarkerResolutions(JaxrsMarkerResolutionGenerator.java:39) at org.jboss.tools.ws.jaxrs.ui.quickfix.JaxrsMarkerResolutionGenerator.getResolutions(JaxrsMarkerResolutionGenerator.java:19) at org.eclipse.ui.internal.ide.registry.MarkerHelpRegistry.getResolutions(MarkerHelpRegistry.java:253) at org.jboss.tools.common.quickfix.MarkerAnnotationInfo.getMarkerProposals(MarkerAnnotationInfo.java:62) at org.jboss.tools.common.quickfix.MarkerAnnotationInfo.getCompletionProposals(MarkerAnnotationInfo.java:50) at org.jboss.tools.common.text.xml.xpl.MarkerProblemAnnotationHoverProcessor$MarkerAnnotationInformationControl.createContent(MarkerProblemAnnotationHoverProcessor.java:220) at org.jboss.tools.common.text.xml.xpl.MarkerProblemAnnotationHoverProcessor$MarkerAnnotationInformationControl.setInput(MarkerProblemAnnotationHoverProcessor.java:189) at org.eclipse.jface.text.AbstractInformationControlManager.internalShowInformationControl(AbstractInformationControlManager.java:1181) at org.eclipse.jface.text.AbstractInformationControlManager.presentInformation(AbstractInformationControlManager.java:1150) at org.eclipse.jface.text.AbstractHoverInformationControlManager.presentInformation(AbstractHoverInformationControlManager.java:902) at org.eclipse.jface.text.TextViewerHoverManager.doPresentInformation(TextViewerHoverManager.java:243) at org.eclipse.jface.text.TextViewerHoverManager$5.run(TextViewerHoverManager.java:233) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135) ... 24 more {code}