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NullPointer in DOM2DTM.getLocalName

NullPointer in DOM2DTM.getLocalName

2006-11-14       - By Satoshi Iwayama
Reply:     1     2     3     4     5     6  

Brian,
Thank you so much.

The system released  3 years ago.
So, it's difficult to try 2.7.0 now.

I tried to make a testcase, but I didn't get the same exception.
  XPathAPI.eval( null, "/aaa/bbb/text()" );
  XPathAPI.eval( document, "/aaa/bbb/text)" ); <-- bad xpath
  XPathAPI.eval( document, "" );
  XPathAPI.eval( document, null );  etc...

If I get the same exception in our test environment, I'll report to JIRA.

Regards,
Satoshi Iwayama


Brian Minchau wrote:
> Saoshi,
>
> Is there are reason you are using 2.5, which is now over three years old?
> 2.5 - April 2003
> 2.5.1 - June 2003
> 2.5.2 - October 2003
>
> 2.6.0 - February 2004
>
> 2.7.0 - August 2005
>
> Xalan-J has moved on to 2.6 and 2.7 and a new release, 2.7.1 is expected in
> this month.  It is very unlikely that we will be fixing any bugs in 2.5.
> Please try 2.7.0 if you can to see if the bug still exists.
>
> There is of course the possibility that a bug persists across the releases,
> but there isn't enough information to go on from just your note.  Please
> provide a testcase in a JIRA issue so we can persue this.  Our issue
> tracking system (JIRA) is at:
> https://issues.apache.org/jira/secure/Dashboard.jspa and the project is
> XalanJ2
>
> - Brian
>
>
>
>                                                                            
>              Satoshi Iwayama                                              
>              <iwayama@(protected)                                            
>              land.com>                                                  To
>                                        xalan-j-users@(protected)        
>              11/13/2006 06:30                                           cc
>              AM                                                            
>                                                                    Subject
>                                        NullPointer in DOM2DTM.getLocalName
>                                                                            
>                                                                            
>                                                                            
>                                                                            
>                                                                            
>                                                                            
>
>
>
>
> I got following exception while doing XPathAPI.eval using xalan 2.5.0 in
> a production environment.
> I can't getting this exception again.
> Please let me know,
> why does it throw NullPointerException ?
> how can i fix this ?
>
> java.lang.NullPointerException
> at
> org.apache.xml.dtm.ref.dom2dtm.DOM2DTM.getLocalName(DOM2DTM.java(Compiled
> Code))
> at org.apache.xpath.patterns.NodeTest.execute(NodeTest.java(Compiled Code))
> at
> org.apache.xpath.axes.PredicatedNodeTest.acceptNode(PredicatedNodeTest.java
(Compiled
>
> Code))
> at org.apache.xpath.axes.AxesWalker.nextNode(AxesWalker.java(Compiled
> Code))
> at org.apache.xpath.axes.WalkingIterator.nextNode(WalkingIterator.java:192)
> at org.apache.xpath.axes.NodeSequence.nextNode(NodeSequence.java:281)
> at org.apache.xpath.axes.NodeSequence.item(NodeSequence.java:471)
> at org.apache.xpath.objects.XNodeSet.str(XNodeSet.java:272)
> at org.apache.xpath.objects.XObject.toString(XObject.java:306)
> at sample.util.XMLUtility.getData(XMLUtility.java:57)
>
> -------- Part of XMLUtility -----------------------------------------
>
> 55: public static String getData(Document document,String xpath) {
> 56: try {
> 57: return XPathAPI.eval(document, xpath).toString();
> 58: } catch (Exception e) {
> 59: e.printStackTrace();
> 60: }
> 61: }
> ------------------------------------------------------------------
>
> Regards,
> Satoshi Iwayama
>
>
>
>
>
>
>