[jbosstools-issues] [JBoss JIRA] (JBIDE-18555) NPE happens when multiple editors are opened

NPE happens when multiple editors are opened -------------------------------------------- Key: JBIDE-18555 URL: https://issues.jboss.org/browse/JBIDE-18555 Project: Tools (JBoss Tools) Issue Type: Bug Components: jsp/jsf/xml/html source editing Affects Versions: 4.2.0.CR2 Environment: Win7 Reporter: Konstantin Marmalyukov Assignee: Konstantin Marmalyukov Fix For: 4.2.1.Final, 4.3.0.Alpha1 Open html file in WTP HTML Editor and in JBoss Tools HTML Editor the same time. Edit html document in JBoss Tools Editor. See the stacktrace {quote} !ENTRY org.eclipse.ui 4 0 2014-10-09 22:18:21.265 !MESSAGE Unhandled event loop exception !STACK 0 org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException) at org.eclipse.swt.SWT.error(SWT.java:4441) at org.eclipse.swt.SWT.error(SWT.java:4356) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:139) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4147) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3764) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1152) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1033) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:635) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:578) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135) 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:379) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:233) 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:483) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) Caused by: java.lang.NullPointerException at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPTextEditor$1.run(JSPTextEditor.java:241) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPTextEditor.getPageContext(JSPTextEditor.java:253) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPTextEditor.updateModification(JSPTextEditor.java:469) at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPMultiPageEditor.nodeChanged(JSPMultiPageEditor.java:782) at org.jboss.tools.common.model.util.XModelTreeListenerSWTASync$R.run(XModelTreeListenerSWTASync.java:84) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) ... 24 more {quote}