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https://issues.apache.org/jira/browse/JXPATH-183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15028820#comment-15028820
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Michael Osipov commented on JXPATH-183:
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That is a terrible piece of code which creates 16000 new integer objects.
[{{Integer#valueOf}}|http://docs.oracle.com/javase/7/docs/api/java/lang/Integer.html#valueOf%28int%29].
should give a better performance here.
> XMLGregorianCalendar existence adding a lot of performance penalty
> ------------------------------------------------------------------
>
> Key: JXPATH-183
> URL: https://issues.apache.org/jira/browse/JXPATH-183
> Project: Commons JXPath
> Issue Type: Improvement
> Affects Versions: 1.3
> Environment: Windows 7, Amazon Unix, Weblogic
> Reporter: Ganna Shmatova
> Labels: performance
>
> We're using JXPath to parse some input from a client. When they give us a
> valid date it gets transformed from a SOAP message into Java objects. When
> this happens JXPath queries suddenly take 1-8 seconds more (depending on
> system -- the optimized system it's 1 second, dev & test machines it's 8).
> Kicker is, we don't even look for this field. Just its existence does it.
> (we've quickfixed to omit the xml tags before the string is parsed into Java
> for now)
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