I have got a problem with my code and i cant seem to fix it. I want to add some customer data to a array list in java/GWT when submitting a button.
the form from whi
You get a NullPointerException. This happens because you are using a reference which is null. In your case this is one of the fields in the line that you marked.
NullPointerException
null
Use a debugger, put a breakpoint on that line, and inspect which field in null.