[jbosstools-issues] [JBoss JIRA] (JBIDE-10091) NPE in VPE -> org.jboss.tools.common.text.xml.info.ChainTextHover

[Vitali Yemialyanchyk (Created) (JIRA)]

NPE in VPE -> org.jboss.tools.common.text.xml.info.ChainTextHover
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                 Key: JBIDE-10091
                 URL: https://issues.jboss.org/browse/JBIDE-10091
             Project: Tools (JBoss Tools)
          Issue Type: Bug
          Components: jsp/jsf/xml source editing, UpStream, Visual Page Editor core
    Affects Versions: 3.3.0.M3
            Reporter: Vitali Yemialyanchyk
            Assignee: Alexey Kazakov


{code}
java.lang.NullPointerException
	at org.eclipse.wst.sse.ui.internal.taginfo.AnnotationHoverProcessor.getHoverInfo(AnnotationHoverProcessor.java:120)
	at org.jboss.tools.common.text.xml.info.ChainTextHover.getHoverInfo2(ChainTextHover.java:145)
	at org.jboss.tools.common.text.xml.info.ChainTextHover.getHoverInfo2(ChainTextHover.java:132)
	at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:166)

{code}
- I can't provide exact steps to reproduce.
Only 1 statement - in AnnotationHoverProcessor.getHoverInfo line 120:
hoverRegion can't be null during code inspecting,
but variable p  - can be null.
so look like UpStream exception 

{code}
java.lang.NullPointerException
	at org.eclipse.jst.jsf.facelet.core.internal.cm.ElementCMAdapter.getLength(ElementCMAdapter.java:109)
	at org.eclipse.wst.xml.core.internal.contentmodel.basic.CMNamedNodeMapImpl.<init>(CMNamedNodeMapImpl.java:40)
	at org.eclipse.wst.xml.ui.internal.taginfo.XMLTagInfoHoverProcessor.getCMAttributeDeclaration(XMLTagInfoHoverProcessor.java:206)
	at org.eclipse.wst.xml.ui.internal.taginfo.XMLTagInfoHoverProcessor.computeTagAttNameHelp(XMLTagInfoHoverProcessor.java:122)
	at org.eclipse.wst.xml.ui.internal.taginfo.XMLTagInfoHoverProcessor.computeRegionHelp(XMLTagInfoHoverProcessor.java:108)
	at org.eclipse.wst.xml.ui.internal.taginfo.XMLTagInfoHoverProcessor.computeHoverHelp(XMLTagInfoHoverProcessor.java:86)
	at org.eclipse.wst.xml.ui.internal.taginfo.XMLTagInfoHoverProcessor.getHoverInfo(XMLTagInfoHoverProcessor.java:257)
	at org.eclipse.jst.jsf.facelet.ui.internal.hover.FaceletHover.getHoverInfo(FaceletHover.java:58)
	at org.jboss.tools.common.text.xml.info.ChainTextHover.getHoverInfo2(ChainTextHover.java:145)
	at org.jboss.tools.common.text.xml.info.ChainTextHover.getHoverInfo2(ChainTextHover.java:132)
	at org.eclipse.jface.text.TextViewerHoverManager$4.run(TextViewerHoverManager.java:166)
{code}
- in this case something wrong in jboss tools can be cause of exception


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