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Bug 316960 - NPE hovering in source
Summary: NPE hovering in source
Status: RESOLVED WORKSFORME
Alias: None
Product: JSDT
Classification: WebTools
Component: General (show other bugs)
Version: 3.2   Edit
Hardware: PC Linux
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Project Inbox CLA
QA Contact: Victor Rubezhny CLA
URL: https://www.eclipse.org/forums/index....
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2010-06-15 15:04 EDT by Michael Rennie CLA
Modified: 2016-10-24 00:21 EDT (History)
1 user (show)

See Also:

Attachments
source (13.10 KB, application/javascript)
2010-06-15 15:05 EDT, Michael Rennie CLA 		no flags Details
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Description Michael Rennie CLA 2010-06-15 15:04:31 EDT 
JSDT 1.2.0.v201006041342-7C78FGDF9JgLWLMLM4Vsye

Hovering in the attached source on line 45 over "SocketTransport." will cause the following NPE:

java.lang.NullPointerException
at org.eclipse.wst.jsdt.internal.ui.text.java.hover.JavadocHover.getHoverInfo(JavadocHover.java:198)
at org.eclipse.wst.jsdt.internal.ui.text.java.hover.AbstractJavaEditorTextHover.getHoverInfo(AbstractJavaEditorTextHover.java:116)
at org.eclipse.wst.jsdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo(BestMatchHover.java:99)
at org.eclipse.wst.jsdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo(JavaEditorTextHoverProxy.java:67)
at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:168)

The source file is in a normal non-JavaScript project
Comment 1 Michael Rennie CLA 2010-06-15 15:05:16 EDT 
Created attachment 171978 [details]
source
Comment 2 Chris Jaun CLA 2010-06-21 15:43:48 EDT 
I don't see an error when I hover over SocketTransport, but I do see the following when I hover over its prototype attribute...

JavaScript Model Exception: JavaScript Model Status [prototype [in Object [in system.js [in C:/DevWorkspaces/runtime-New_configuration//metadata//plugins/org/eclipse/wst/jsdt/core/libraries/system/js [in C:\DevWorkspaces\runtime-New_configuration\.metadata\.plugins\org.eclipse.wst.jsdt.core\libraries\system.js]]]] does not exist]
	at org.eclipse.wst.jsdt.internal.core.JavaElement.newNotPresentException(JavaElement.java:519)
	at org.eclipse.wst.jsdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:550)
	at org.eclipse.wst.jsdt.internal.core.JavaElement.getElementInfo(JavaElement.java:283)
	at org.eclipse.wst.jsdt.internal.core.JavaElement.getElementInfo(JavaElement.java:269)
	at org.eclipse.wst.jsdt.internal.core.JavaElement.exists(JavaElement.java:179)
	at org.eclipse.wst.jsdt.internal.core.SelectionRequestor.acceptField(SelectionRequestor.java:240)
	at org.eclipse.wst.jsdt.internal.codeassist.SelectionEngine.selectFrom(SelectionEngine.java:876)
	at org.eclipse.wst.jsdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:744)
	at org.eclipse.wst.jsdt.internal.core.Openable.codeSelect(Openable.java:167)
	at org.eclipse.wst.jsdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:318)
	at org.eclipse.wst.jsdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:312)
	at org.eclipse.wst.jsdt.internal.ui.text.java.hover.AbstractJavaEditorTextHover.getHoverInfo(AbstractJavaEditorTextHover.java:108)
	at org.eclipse.wst.jsdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo(BestMatchHover.java:99)
	at org.eclipse.wst.jsdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo(JavaEditorTextHoverProxy.java:67)
	at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:168)
JavaScript Model Exception: JavaScript Model Status [prototype [in Object [in system.js [in C:/DevWorkspaces/runtime-New_configuration//metadata//plugins/org/eclipse/wst/jsdt/core/libraries/system/js [in C:\DevWorkspaces\runtime-New_configuration\.metadata\.plugins\org.eclipse.wst.jsdt.core\libraries\system.js]]]] does not exist]
	at org.eclipse.wst.jsdt.internal.core.JavaElement.newNotPresentException(JavaElement.java:519)
	at org.eclipse.wst.jsdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:550)
	at org.eclipse.wst.jsdt.internal.core.JavaElement.getElementInfo(JavaElement.java:283)
	at org.eclipse.wst.jsdt.internal.core.JavaElement.getElementInfo(JavaElement.java:269)
	at org.eclipse.wst.jsdt.internal.core.JavaElement.exists(JavaElement.java:179)
	at org.eclipse.wst.jsdt.internal.core.SelectionRequestor.acceptField(SelectionRequestor.java:240)
	at org.eclipse.wst.jsdt.internal.codeassist.SelectionEngine.selectFrom(SelectionEngine.java:876)
	at org.eclipse.wst.jsdt.internal.codeassist.SelectionEngine.select(SelectionEngine.java:744)
	at org.eclipse.wst.jsdt.internal.core.Openable.codeSelect(Openable.java:167)
	at org.eclipse.wst.jsdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:318)
	at org.eclipse.wst.jsdt.internal.core.CompilationUnit.codeSelect(CompilationUnit.java:312)
	at org.eclipse.wst.jsdt.internal.ui.text.java.hover.AbstractJavaEditorTextHover.getHoverInfo(AbstractJavaEditorTextHover.java:108)
	at org.eclipse.wst.jsdt.internal.ui.text.java.hover.BestMatchHover.getHoverInfo(BestMatchHover.java:99)
	at org.eclipse.wst.jsdt.internal.ui.text.java.hover.JavaEditorTextHoverProxy.getHoverInfo(JavaEditorTextHoverProxy.java:67)
	at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:168)
Comment 3 Chris Jaun CLA 2010-06-21 15:44:06 EDT 
Ian...see my comment.
Comment 4 Chris Jaun CLA 2010-06-22 16:06:48 EDT 
This may have been fixed by some recent 3.2.1 or late 3.2 RC fixes. Ian and I both attempted to reproduce in a JavaScript and Non-JavaScript project.

I got hover help on SocketTransport and no error over prototype(with patches applied).