Code review request: 7088502 Security libraries don't build with javac -Werror

[Kurchi Hazra]

  Hi Sean,

Can you please review these changes?

Summary: * Small changes to Java files in 
src/share/classes/com/sun/org/apache/xml/internal/security and its 
subpackages to remove build warnings.
                   * Small changes to relevant makefiles to prevent 
reintroduction of removed warnings.

webrev: http://cr.openjdk.java.net/~sherman/kurchi/7088502/webrev/
Bug description: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7088502


Thanks,
Kurchi