Fix some immediate Eclipse/Checkstyle issues
- add missing license header
- remove stray author tag
- remove trailing whitespace
- add @Override
- Java 7 <> operator

Still a few to investigate including the deprecation as I removed the class level suppression to look at the individual issues more closely

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1436593 13f79535-47bb-0310-9956-ffa450edef68
Avoid deprecation warnings

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1436595 13f79535-47bb-0310-9956-ffa450edef68
Refactor to avoid potential null warning

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1436597 13f79535-47bb-0310-9956-ffa450edef68
is can't be null here due to check a few lines above

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1436598 13f79535-47bb-0310-9956-ffa450edef68