Core union operation does not sort result nodes according to document order
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Key: JXPATH-100
URL: https://issues.apache.org/jira/browse/JXPATH-100
Project: Commons JXPath
Issue Type: Bug
Affects Versions: 1.2 Final, Nightly Builds
Reporter: Sergey Vladimirov
Attachments: UnionOperationTest.java
Source document:
<MAIN><A>avalue</A><B>bvalue</B></MAIN>
According to string() function defintion:
"A node-set is converted to a string by returning the string-value of the node
in the node-set that is first in document order. If the node-set is empty, an
empty string is returned."
Following XPath calculated incorrectly:
string(/MAIN/B | /MAIN/A)
Expected result: "avalue"
Actual value: "bvalue"
Reason:
sorting of result nodes is missing from CoreOperationUnion
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