A potentially cool concept, like GWT it lets me develop Java apps for the browser without touching JavaScript and without dealing with Applet signing issues lik

A potentially cool concept, like GWT it lets me develop Java apps for the browser without touching JavaScript and without dealing with Applet signing issues like we used to have. One problem though, I tried compiling the Swing Hello World app and after it worked at it for a while got a java.lang error: http://docs.oracle.com/javase/tutorial/uiswing/examples/start/HelloWorldSwingProject/src/start/HelloWorldSwing.java http://docs.oracle.com/javase/tutorial/uiswing/examples/star...