RFR: (jaxp) 8003260 : some fields should be package protected

[Joe Wang]

Hi,

This is one of the three [findbug] issues. I've checked with Drew. None 
of them are vulnerabilities. Nonetheless, the fields should have been 
private or package private.

webrev:
http://cr.openjdk.java.net/~joehw/7u12/8003260/webrev/

Test:
No new test. Existing regression tests passed.

Thanks,
Joe