[jbosstools-issues] [JBoss JIRA] (JBIDE-17298) NPE when opening preview tab

[Konstantin Marmalyukov (JIRA)]

    [ https://issues.jboss.org/browse/JBIDE-17298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12969069#comment-12969069 ] 

Konstantin Marmalyukov commented on JBIDE-17298:
------------------------------------------------

I found another case. If you open editor in Preview mode, then eclipse will not restart because of NPE.

> NPE when opening preview tab
> ----------------------------
>
>                 Key: JBIDE-17298
>                 URL: https://issues.jboss.org/browse/JBIDE-17298
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: visual-page-editor-core
>    Affects Versions: 4.2.0.Beta2
>            Reporter: Alexey Kazakov
>            Assignee: Konstantin Marmalyukov
>            Priority: Critical
>
> 1. Open any HTML page with JBoss Tools HTML Editor
> 2. Open Source tab
> 3. Restart Eclipse
> 4. Click on Preview tab:
> {code}
> java.lang.NullPointerException
> 	at org.jboss.tools.vpe.preview.editor.VpvEditorPart.getPreviewWebBrowser(VpvEditorPart.java:903)
> 	at org.jboss.tools.jst.web.ui.internal.editor.jspeditor.JSPMultiPageEditor.pageChange(JSPMultiPageEditor.java:316)
> 	at org.eclipse.ui.part.MultiPageEditorPart$2.widgetSelected(MultiPageEditorPart.java:294)
> 	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4462)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1412)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1397)
> 	at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1182)
> 	at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:3110)
> 	at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1794)
> 	at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:283)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4462)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1388)
> 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3806)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3416)
> 	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:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	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)
> {code}



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