[jbosstools-issues] [JBoss JIRA] (JBIDE-26256) NPE while closing JBoss Tools HTML Editor editor tab in IDE

NPE while closing JBoss Tools HTML Editor editor tab in IDE ----------------------------------------------------------- Key: JBIDE-26256 URL: https://issues.jboss.org/browse/JBIDE-26256 Project: Tools (JBoss Tools) Issue Type: Bug Components: jst Affects Versions: 4.9.0.AM1 Reporter: Ondrej Dockal Assignee: Jeff MAURY Priority: Critical Attachments: html-editor-npe.png I am getting NPE error dialog while closing JBoss Tools HTML Editor with opened xhtml file. Page class is told to be org.jboss.tools.jst.jsp.jspeditor.HTMLTextEditor. Error log message: {code} Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench". {code} Stack trace: {code} java.lang.NullPointerException at org.jboss.tools.jst.web.ui.palette.PaletteAdapter.dispose(PaletteAdapter.java:233) at org.jboss.tools.common.model.ui.views.palette.PaletteCreator.dispose(PaletteCreator.java:101) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.PalettePageImpl.dispose(PalettePageImpl.java:173) at org.eclipse.gef.ui.views.palette.PaletteView.doDestroyPage(PaletteView.java:118) at org.eclipse.ui.part.PageBookView.removePage(PageBookView.java:830) at org.eclipse.ui.part.PageBookView.partClosed(PageBookView.java:762) at org.eclipse.ui.part.PageBookView$1.partClosed(PageBookView.java:1038) at org.eclipse.ui.internal.WorkbenchPage$25.run(WorkbenchPage.java:5267) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.WorkbenchPage.firePartClosed(WorkbenchPage.java:5264) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.lambda$0(CompatibilityPart.java:106) at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:233) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:144) at org.eclipse.swt.widgets.Display.syncExec(Display.java:5830) at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:212) at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36) at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:201) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:196) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135) at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78) at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39) at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:52) at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:60) at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374) at org.eclipse.e4.ui.model.application.ui.impl.UIElementImpl.setWidget(UIElementImpl.java:262) at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.unbindWidget(SWTPartRenderer.java:147) at org.eclipse.e4.ui.workbench.renderers.swt.SWTPartRenderer.disposeWidget(SWTPartRenderer.java:170) at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.disposeWidget(ContributedPartRenderer.java:270) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:955) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$1(PartRenderingEngine.java:883) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:878) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:862) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.subscribeTopicToBeRendered(PartRenderingEngine.java:183) at sun.reflect.GeneratedMethodAccessor109.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55) at org.eclipse.e4.core.di.internal.extensions.EventObjectSupplier$DIEventHandler.handleEvent(EventObjectSupplier.java:88) at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:201) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:196) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135) at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78) at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39) at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:52) at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:60) at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374) at org.eclipse.e4.ui.model.application.ui.impl.UIElementImpl.setToBeRendered(UIElementImpl.java:304) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1378) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1308) at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.closePart(StackRenderer.java:1256) at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer.access$0(StackRenderer.java:1242) at org.eclipse.e4.ui.workbench.renderers.swt.StackRenderer$3.close(StackRenderer.java:1110) at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1958) at org.eclipse.swt.custom.CTabFolder.lambda$0(CTabFolder.java:333) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5686) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1370) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4940) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4518) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1170) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1059) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:625) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:560) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:152) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:656) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:592) at org.eclipse.equinox.launcher.Main.run(Main.java:1498) at org.eclipse.equinox.launcher.Main.main(Main.java:1471) {code} Session data: {code} eclipse.buildId=12.9.0.AM1-v20180726-1026-B3091 java.version=1.8.0_172 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 {code}