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Bug 324844

Summary: NullPointerException on using contentAssist in XSD targetNamespace
Product: [WebTools] WTP Source Editing Reporter: Rakesh <rakes123>
Component: wst.xmlAssignee: Rakesh <rakes123>
Status: RESOLVED WORKSFORME QA Contact: Nitin Dahyabhai <thatnitind>
Severity: minor    
Priority: P3 CC: nsand.dev
Version: unspecified   
Target Milestone: 3.2.3   
Hardware: PC   
OS: Windows XP   
Whiteboard:
Attachments:
Description Flags
patch none

Description Rakesh CLA 2010-09-09 09:26:50 EDT 
Build Identifier:  N20100906-2000

<?xml version ="1.0"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
targetNamespace="">

</xs:schema>

I invoked content assist on targetNamespace(in between double quotes)
Here is the stack trace:
!STACK 0
java.lang.NullPointerException
	at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLModelQueryCompletionProposalComputer.addAttributeValueProposals(AbstractXMLModelQueryCompletionProposalComputer.java:317)
	at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeEqualsProposals(AbstractXMLCompletionProposalComputer.java:673)
	at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeCompletionProposals(AbstractXMLCompletionProposalComputer.java:387)
	at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeCompletionProposals(AbstractXMLCompletionProposalComputer.java:169)
	at org.eclipse.wst.sse.ui.internal.contentassist.CompletionProposalComputerDescriptor.computeCompletionProposals(CompletionProposalComputerDescriptor.java:284)
	at org.eclipse.wst.sse.ui.internal.contentassist.CompletionProposalCategory.computeCompletionProposals(CompletionProposalCategory.java:294)
	at org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor.collectProposals(StructuredContentAssistProcessor.java:455)
	at org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor.computeCompletionProposals(StructuredContentAssistProcessor.java:252)
	at org.eclipse.wst.sse.ui.internal.contentassist.CompoundContentAssistProcessor.computeCompletionProposals(CompoundContentAssistProcessor.java:126)
	at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1834)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:556)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:553)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup$2.run(CompletionProposalPopup.java:488)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:482)
	at org.eclipse.jface.text.contentassist.ContentAssistant$2.run(ContentAssistant.java:376)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
	at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
	at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
	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:369)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:621)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:576)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1409)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1385)


Reproducible: Always
Comment 1 Rakesh CLA 2010-09-09 09:28:45 EDT 
Created attachment 178516 [details]
patch

Simple null pointer check.
Comment 2 Nick Sandonato CLA 2010-09-15 11:25:40 EDT 
Rakesh, while I think it's a good idea to do this null check, is there a larger problem at hand here? I would imagine that the "targetNamespace" attribute should be found in the NodeMap. The fact that we know the name came from the structured document region but is not in the attribute map returned by the node is more concerning to me.

I also cannot reproduce with your test case.
Comment 3 Nick Sandonato CLA 2010-10-05 14:06:57 EDT 
Hi, Rakesh, do you have any input on my previous comments?
Comment 4 Rakesh CLA 2010-10-06 01:08:51 EDT 
(In reply to comment #3)
> Hi, Rakesh, do you have any input on my previous comments?
Hi, Nick, even i am not able to reproduce it on latest build.I think we can close it as "Not Reproducible".
Comment 5 Nick Sandonato CLA 2010-10-06 08:14:28 EDT 
Resolving as unreproducible.