Nightly: NPE DocTypeUtil.getDoctype(DocTypeUtil.java:137)

[mail.micke]

Hi,
using a nightly from the 26th of July with eclipse 3.4 and get the following uncaught NPE :

java.lang.NullPointerException
 at org.jboss.tools.vpe.editor.util.DocTypeUtil.getDoctype(DocTypeUtil.java:137)
 at org.jboss.tools.vpe.editor.util.DocTypeUtil.getDoctype(DocTypeUtil.java:60)
 at org.jboss.tools.vpe.editor.mozilla.MozillaEditor.createPartControl(MozillaEditor.java:281)
 at org.jboss.tools.vpe.editor.VpeEditorPart.createVisualEditor(VpeEditorPart.java:754)
 at org.jboss.tools.jst.jsp.jspeditor.JSPMultiPageEditor.pageChange(JSPMultiPageEditor.java:213)
 at org.jboss.tools.jst.jsp.jspeditor.JSPMultiPageEditor.createPages(JSPMultiPageEditor.java:408)
 at org.jboss.tools.jst.jsp.jspeditor.JSPMultiPageEditorPart.createPartControl(JSPMultiPageEditorPart.java:125)
 at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:661)
 at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:428)
 at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:594)
 at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:266)
 at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2820)
 at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2729)
 at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2721)
 at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2673)
 at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
 at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2668)
 at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2652)
 at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2643)
 at org.eclipse.ui.ide.IDE.openEditor(IDE.java:646)
 at org.eclipse.ui.ide.IDE.openEditor(IDE.java:605)
 at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:318)
 at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:160)
 at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:228)
 at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:207)
 at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
 at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250)
 at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:363)
 at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$5.open(PackageExplorerPart.java:603)
 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:880)
 at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
 at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
 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:84)
 at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
 at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
 at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
 at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
 at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
 at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
 at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
 at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
 at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
 at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
 at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
 at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
 at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)
 at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
 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:585)
 at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
 at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
 at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
 at org.eclipse.equinox.launcher.Main.main(Main.java:1212)

Currently get this for every XHTML page which uses a template.

Cheers,
Micke

[nhpvti]

Hi,

I've the same problem in Eclipse 3.4 with JBoss Tools 3.0.0 Alpha1 installed via Eclipse Update

java.lang.NullPointerException
 at org.jboss.tools.vpe.editor.util.DocTypeUtil.getDoctype(DocTypeUtil.java:153)
 at org.jboss.tools.vpe.editor.util.DocTypeUtil.getDoctype(DocTypeUtil.java:71)
 at org.jboss.tools.vpe.editor.mozilla.MozillaEditor.createPartControl(MozillaEditor.java:281)

aret there any news?

[dgolovin]

What kind of XHTML are you opening, could you post here a simple example that fails for you with error your mentioned above?

[maxandersen]

Yes, please report bugs in jira with steps on how to reproduce - otherwise we can't really give you news :)

[nhpvti]

Hi,

Yes, please report bugs in jira with steps on how to reproduce - otherwise we can't really give you news :)

I was not sure that this is a bug, it could be programming mistake or misconfiguration.

There are no Null Pointer exceptions on Windows workstations, only on a Linux one.

After some research I've discovered that the problem occurs if our XHTML files start with "<html xmlns=...", e.g.:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
 xmlns:ui="http://java.sun.com/jsf/facelets"
 xmlns:h="http://java.sun.com/jsf/html"
 xmlns:f="http://java.sun.com/jsf/core"
 xmlns:s="http://jboss.com/products/seam/taglib"
 xmlns:a="https://ajax4jsf.dev.java.net/ajax"
 xmlns:rich="http://richfaces.ajax4jsf.org/rich">
<ui:composition template="/layout/template.xhtml">

And there is no problem when XHTML files start with "<ui:composition...", e.g.:

<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
 xmlns:s="http://jboss.com/products/seam/taglib"
 xmlns:ui="http://java.sun.com/jsf/facelets"
 xmlns:f="http://java.sun.com/jsf/core"
 xmlns:h="http://java.sun.com/jsf/html"
 xmlns:a="https://ajax4jsf.dev.java.net/ajax"
 xmlns:rich="http://richfaces.ajax4jsf.org/rich"
 template="layout/template.xhtml">

Now after migration to the 2nd "style" there are no null pointer exceptions any more during opening XHTML files,
but Visual Editor is still not working on my Linux workstation :-(

The following link didn't help:
http://wiki.jboss.org/wiki/JBosstoolsVisualEditorFAQ
There is already compat-libstdc++-5.0.7-22.2 installed and symbolic link libstdc++.so.5 pointing to it already exists.

But hope that this will help...
https://jira.jboss.org/jira/browse/JBDS-170

[maxandersen]

JBDS -170 is an old issue, did you open another one ?

[maxandersen]

I can see https://jira.jboss.org/jira/browse/JBIDE-2711 have been created that resembles this issue.