GWT + Maven + JBOSS Issue

hi all,

i have a project, which use GWT for the frontend. I can compile and
run the module with maven (mvn compile war:exploded gwt:run) and it
works fine. After that i package (mvn war:exploded package) the app as
war and deploy it into jboss. When i call

http://localhost:8080/module-frontend/index.html

i get follwoing message

GWT module 'XYZ' may need to be (re)compiled

I found, that the ?gwt.codesvr parameter is missing. I've tried again
with:

http://localhost:8080/module-frontend/index.html?gwt.codesvr=172.16.0.43:9997

but now i get this error message:

Plugin failed to connect to hosted mode server at 172.16.0.43:9997

Any suggestions, how to solve the problem?