We began to notice that with Java 7 (particularly with update 4), that all our users began to see this with our Webstart app:
[14:42:58,422] AWT-EventQueue-0(DEBUG) java.lang.SecurityException: class "CLASSNAME" does not match
trust level of other classes in the same package
[14:42:58,422] AWT-EventQueue-0(DEBUG) at
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