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Type: Bug
Resolution: Done
Priority: Critical
Fix Version/s: 4.2.0.Beta3
Affects Version/s: 4.2.0.Beta2
Component/s: visual-page-editor-core
Labels:
None

Workaround:

Workaround Exists
Workaround Description:

Hide

Do not set this property to false
Start JBDS with SWT_GTK3=1

Show
Do not set this property to false Start JBDS with SWT_GTK3=1

1. Start JBT with -vmargs -Dorg.jboss.tools.vpe.loadxulrunner=false parameters
2. Import HTML5 project from JBoss Central
3. Open index.html page

ERROR: Opened editor has empty title and visual part is also empty

4. Close JBT with with opened index.html page
5. Start JBT

ERROR: JBT did not start

There is couple of exceptions in log. This is last one:

!ENTRY org.eclipse.ui 4 0 2014-05-27 18:10:56.925
!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:3781)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3419)
        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)
Caused by: java.lang.NullPointerException
        at org.jboss.tools.vpe.preview.editor.VpvEditor.formRequestToServer(VpvEditor.java:608)
        at org.jboss.tools.vpe.preview.editor.VpvEditor.reload(VpvEditor.java:600)
        at org.jboss.tools.vpe.preview.editor.VpvEditorPart.updateVisualEditorVisibility(VpvEditorPart.java:885)
        at org.jboss.tools.vpe.preview.editor.VpvEditorPart$5.controlResized(VpvEditorPart.java:437)
        at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:235)
        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:1393)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:1042)
        at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1435)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:879)
        at org.eclipse.swt.custom.SashFormLayout.layout(SashFormLayout.java:190)
        at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1652)
        at org.eclipse.swt.widgets.Composite.layout(Composite.java:1004)
        at org.eclipse.swt.widgets.Composite.layout(Composite.java:962)
        at org.jboss.tools.vpe.editor.xpl.CustomSashForm.layout(CustomSashForm.java:261)
        at org.jboss.tools.vpe.editor.xpl.CustomSashForm$1.handleEvent(CustomSashForm.java:159)
        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:1393)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:1042)
        at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1435)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:879)
        at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:693)
        at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:197)
        at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1652)
        at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1438)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:879)
        at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:693)
        at org.eclipse.swt.layout.GridLayout.layout(GridLayout.java:197)
        at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1652)
        at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1438)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:851)
        at org.eclipse.swt.custom.CTabFolderLayout.layout(CTabFolderLayout.java:116)
        at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1652)
        at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1438)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:879)
        at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:204)
        at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1652)
        at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1438)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:879)
        at org.eclipse.swt.layout.FillLayout.layout(FillLayout.java:219)
        at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1652)
        at org.eclipse.swt.widgets.Composite.setBounds(Composite.java:1438)
        at org.eclipse.swt.widgets.Control.setBounds(Control.java:851)
        at org.eclipse.swt.custom.CTabFolderLayout.layout(CTabFolderLayout.java:116)
        at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1652)
        at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1658)
        at org.eclipse.swt.widgets.Composite.layout(Composite.java:1004)
        at org.eclipse.swt.custom.CTabFolder.runUpdate(CTabFolder.java:3755)
        at org.eclipse.swt.custom.CTabFolder$10.run(CTabFolder.java:3741)
        at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
        at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136)
        ... 24 more

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