Fix infinite loop issue triggered by the test case for BZ 55638

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1530421 13f79535-47bb-0310-9956-ffa450edef68
Whoops. Remove the debug code.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1530423 13f79535-47bb-0310-9956-ffa450edef68
Add .xhtml to the welcome files for the examples webapp

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1530426 13f79535-47bb-0310-9956-ffa450edef68
Ensure the examples webapp starts when validation is enabled.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1530436 13f79535-47bb-0310-9956-ffa450edef68
Fix the fix in r1530423

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1530445 13f79535-47bb-0310-9956-ffa450edef68