well that is not the issue with the S2GUI jar... but with the Java itself...
When the jar file having dependencies is in folder names '!' (with out quotes, only exclamatory sign) in windows, is is failing to open the main class. When I moved out the '!' folder, it is working fine. This is second time I scratched my head with this bug.. Any way this time I filed a bug in Sun site.. waiting for their reply. Finally I was able to run ur jar.. I've created new one, by File > New > on struts, Add Package > on New Package, New Action. But then how do I type/map/configure actions there... I m clueless ManiKanta