JavaScript Native Interface (JSNI) in GWTI have recently had quite a few people talking about how they like GWT but with they could get out of the Java box to delve into JavaScript for some low level work. The assumption was that you cannot do this with GWT and that if you run against the abstraction barrier you are hosed. There is actually a way to embed your own JavaScript directly. JSNI has a similar name to JNI but isn't as hairy, although it does have a creative hack.
