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https://issues.apache.org/jira/browse/JXPATH-177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14592391#comment-14592391
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Michele Vivoda commented on JXPATH-177:
---------------------------------------
Seems that the test fails with jxpath 1.3 but passes with the current trunk,
can you check it ? I updated the test
https://github.com/apache/commons-jxpath
> Pipe in combination with variables causes NullPointerException
> --------------------------------------------------------------
>
> Key: JXPATH-177
> URL: https://issues.apache.org/jira/browse/JXPATH-177
> Project: Commons JXPath
> Issue Type: Bug
> Reporter: Martin Xarx
> Attachments: TestJxPath177.java, jx177.zip
>
>
> xpath: name", result: ROOT name
> xpath: /x/name", result: X name
> xpath: $__root/x/name", result: X name
> xpath: $__root/x/name|name, causes:
> Exception in thread "main" java.lang.NullPointerException
> at
> org.apache.commons.jxpath.ri.model.dynamic.DynamicPointer.hashCode(DynamicPointer.java:126)
> at
> org.apache.commons.jxpath.ri.model.beans.PropertyPointer.hashCode(PropertyPointer.java:221)
> at java.util.HashMap.hash(HashMap.java:338)
> at java.util.HashMap.containsKey(HashMap.java:595)
> at java.util.HashSet.contains(HashSet.java:203)
> at
> org.apache.commons.jxpath.ri.model.NodePointer.compareTo(NodePointer.java:759)
> at
> java.util.ComparableTimSort.countRunAndMakeAscending(ComparableTimSort.java:316)
> at java.util.ComparableTimSort.sort(ComparableTimSort.java:184)
> at java.util.Arrays.sort(Arrays.java:1312)
> at java.util.Arrays.sort(Arrays.java:1506)
> at java.util.ArrayList.sort(ArrayList.java:1454)
> at java.util.Collections.sort(Collections.java:141)
> at
> org.apache.commons.jxpath.ri.EvalContext.sortPointers(EvalContext.java:206)
> at
> org.apache.commons.jxpath.ri.axes.UnionContext.setPosition(UnionContext.java:68)
> at
> org.apache.commons.jxpath.ri.axes.NodeSetContext.nextNode(NodeSetContext.java:68)
> at
> org.apache.commons.jxpath.ri.EvalContext.getSingleNodePointer(EvalContext.java:312)
> at
> org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.getPointer(JXPathContextReferenceImpl.java:464)
> at
> org.apache.commons.jxpath.ri.JXPathContextReferenceImpl.getPointer(JXPathContextReferenceImpl.java:452)
> I'm using model created from java containers (Lists, Maps):
> {
> "name" : "ROOT name",
> "x" : {
> "name" : "X name"
> }
> }
> The context is set to the root node. I'm using the following code:
> JXPathContext xpathContext = JXPathContext.newContext(root);
> Pointer p = contextContext.getPointer(xpath);
> return p.getNode();
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