RFR (7u4) 7150637: No newline emitted after XML decl in XSLT output

[Joe Wang]

Hi,

This is an issue introduced by an Apache update that although 
technically correct, was nonetheless an incompatible change. As reported 
in the CR, it caused NetBeans test failures and spurious reformatting of 
project metadata of users' projects that the version control tool would 
take as if there were real changes. The incompatible behavior would more 
than likely cause many problems to users' applications as did to the 
JAXP SQE tests.

Jesse Glick of the NetBeans tried manually or using 3rd party tool to 
work around the issue, but none satisfactorily.

This patch adds an implementation specific property that can be used to 
essentially neutralize the Apache change to bring back the original 
behavior. It has been tested, to Jesse's satisfactory, to have resolved 
the NetBeans issue with minimal effect in the NetBeans' part.

The use is:

transformer.setOutputProperty("http://www.oracle.com/xml/is-standalone", "yes");

Below is the webrev:

http://cr.openjdk.java.net/~joehw/7u4/cr7150537/webrev/

Please review.

Thanks,
Joe