If you go to Control Panel - Java, then click the Advanced tab, open Secutity-General from the tree list. Uncheck "Enable blacklist revocation check". Click apply.The vpn application will now start without the null pointer exception. I think the real...

I had the same issue with the same stack trace.The jar the vpn client is trying to load is blacklisted by the jvm. The jvm will not load the jar because it has security vulnerabilities:http://www.oracle.com/technetwork/java/javase/6u29-relnotes-50796...