Correct order

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1615919 13f79535-47bb-0310-9956-ffa450edef68
Fix https://issues.apache.org/bugzilla/show_bug.cgi?id=56785
Avoid NullPointerException if directory exists on the class path that is not readable by the Tomcat user.

git-svn-id: https://svn.apache.org/repos/asf/tomcat/trunk@1615920 13f79535-47bb-0310-9956-ffa450edef68