RFR (JAXP) 8146271: File system contention in debug print via XPathFactory.newInstance

[Aleks Efimov]

Hello,

Please, help to review the changes that addresses the file system 
contention caused by debug code in XPathFactoryFinder and 
XPathFactoryFinder classes [1]. Proposed fix wraps the debug output code 
in "if(debug)" block:
http://cr.openjdk.java.net/~aefimov/8146271/9/00/

Best Regards,
Aleksej

[1] https://bugs.openjdk.java.net/browse/JDK-8146271