Add missing try/catch

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jcs/trunk@1606530 13f79535-47bb-0310-9956-ffa450edef68
Debug must come first

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jcs/trunk@1606537 13f79535-47bb-0310-9956-ffa450edef68
 in case setup failed, no point throwing NPE as well

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/jcs/trunk@1606538 13f79535-47bb-0310-9956-ffa450edef68