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Posted to j-users@xalan.apache.org by Satoshi Iwayama <iw...@portalisland.com> on 2006/11/13 12:30:10 UTC
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
Re: NullPointer in DOM2DTM.getLocalName
Posted by Satoshi Iwayama <iw...@portalisland.com>.
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@portalis
> land.com> To
> xalan-j-users@xml.apache.org
> 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
>
>
>
>
>
>
>
Re: NullPointer in DOM2DTM.getLocalName
Posted by Brian Minchau <mi...@ca.ibm.com>.
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@portalis
land.com> To
xalan-j-users@xml.apache.org
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