[Victor Ott]

Hello, I have following issue when I try to open *.thtml files. No, this is not a typo, the wingS framework (http://wingsframework.org) recommends storing HTML templates with this file suffix. Those files are plain HTML snippets, just the body content of a HTML document.

So I just associated *.thtml with “ME Visual HTML Designer”, “ME Visual XHTML Designer”, and “ME HTML Editor” (and the JSP ones too) but … none of those ME editors work, all crash with the same error:

Only the “ME HTML Editor” doesn’t crash, but presents the “Unsupported content type in editor” error too and opens the file as simple text.
Stacktrace: see below.

Reproducible: always.
System: E 3.3, ME 6, JDK 6u3, WinXP, etc.

Note: those files open fine with all ME editors as long as the file ending is *.html (I haven’t tried *.htm).

Error
Wed Oct 10 18:37:33 CEST 2007
Unable to create editor ID com.genuitec.eclipse.webdesigner3.editors.html: An unexpected exception was thrown.

java.lang.NullPointerException
    at com.genuitec.eclipse.webdesigner3.src.SourceEditSystem.getSourceDocument(SourceEditSystem.java:233)
    at com.genuitec.eclipse.webdesigner3.design.DesignEditSystem.synchronize(DesignEditSystem.java:167)
    at com.genuitec.eclipse.webdesigner3.AbstractEditSystem.setSynchronized(AbstractEditSystem.java:24)
    at com.genuitec.eclipse.webdesigner3.WebDesigner3.setSynchronized(WebDesigner3.java:113)
    at com.genuitec.eclipse.webdesigner3.editors.WebDesignerMultiPageEditor.checkSynchronization(WebDesignerMultiPageEditor.java:936)
    at com.genuitec.eclipse.webdesigner3.editors.WebDesignerMultiPageEditor.access$6(WebDesignerMultiPageEditor.java:932)
    at com.genuitec.eclipse.webdesigner3.editors.WebDesignerMultiPageEditor$10.run(WebDesignerMultiPageEditor.java:909)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
    at com.genuitec.eclipse.webdesigner3.editors.WebDesignerMultiPageEditor.designPageChange(WebDesignerMultiPageEditor.java:907)
    at com.genuitec.eclipse.webdesigner3.editors.WebDesignerMultiPageEditor.pageChange(WebDesignerMultiPageEditor.java:881)
    at org.eclipse.ui.part.MultiPageEditorPart.setActivePage(MultiPageEditorPart.java:697)
    at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:287)
    at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:661)
    at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:426)
    at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:592)
    at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:263)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2739)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2651)
    at org.eclipse.ui.internal.WorkbenchPage.access$13(WorkbenchPage.java:2643)
    at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2595)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2590)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2574)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2565)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:644)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:603)
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:286)
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:139)
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:194)
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:175)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:268)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:244)
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:316)
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$5.open(PackageExplorerPart.java:613)
    at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:820)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
    at org.eclipse.core.runtime.Platform.run(Platform.java:857)
    at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46)
    at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:199)
    at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:818)
    at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1079)
    at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1183)
    at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:263)
    at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:257)
    at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:297)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3682)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3293)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
    at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:106)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1148)

[Loyal Water]

Make sure you have added *.thtml under file association as well. That will get it to work.

[Victor Ott]

Exactly this is what I did: associate *.thtml with those editors. Do you mean I should associate also the content type?
[2 min. later] yes, indeed, associating the content type _too_ helped. Thanks for the hint!

PS
Is it really necessary to associate both “content type” and “file association” for a new file extension?

[Loyal Water]

Glad you got it to work.

Is it really necessary to associate both “content type” and “file association” for a new file extension?

Yes it is.

[Victor Ott]

Hmmm, yes, after sleeping over it I also understand the reasons why it is necessary.

Maybe it would be a good idea to better catch/hide those NPE’s. Because of them I wasn’t very aware of the other message dialog, which in fact described the action I had to take.

Thanks again,
Victor

[Loyal Water]

Victor,
Thanks for your input. Ill make a note of this.

[Author]

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