RFR (JAXP): 8035437: Xerces Update: xml/serialize/DOMSerializerImpl

[Aleksej Efimov]

Hello,

Can I ask for a review for the update of DOMSerializerImpl class [1] to 
the latest Apache Xerces implementation.
The following changes were made:
1. The DOMSerializerImpl update: The Xerces class was used as a base 
[2]; the  476047 and 473125 revisions from Xerces was excluded (they 
will be resolved as a part of JDK-8035467 - move to Xalan serializer 
bug); the jaxp 632 revision was applied to new version of this class.
2. The DOMSerializerImpl.java file was reformated, because of not-good 
formatting in original file from Apache repo [2].
3. Other changes related to the DOMSerializerImpl update were applied 
from Xerces repo to JDK(the full revisions list can be found in the JBS 
[1]).
4. All license headers were updated to the latest version of Apache 
header in modified files.
5. New regression test was added to reproduce a problem described in 
Apache bug XERCESJ-1007 [3].

Webrevs for these changes:
     http://cr.openjdk.java.net/~aefimov/8035437/webrev.00/jaxp
     http://cr.openjdk.java.net/~aefimov/8035437/webrev.00/jdk

Testing:
JCK tests (api/xsl api/xinclude api/javax_xml api/org_xml xml_schema): pass
JTREG tests (javax/xml, jdk_other): pass

Thank you,
Aleksej

[1] https://bugs.openjdk.java.net/browse/JDK-6339023
[2] 
http://svn.apache.org/viewvc/xerces/java/trunk/src/org/apache/xml/serialize/DOMSerializerImpl.java?revision=944789&view=markup
[3] https://issues.apache.org/jira/browse/XERCESJ-1007