Android Library to GWT 2.5.1 Compatible

[GoogleCodeExporter]

Cross-posted here: 
http://stackoverflow.com/questions/19050147/gwt-and-android-communication-serial
ization-issue

The interesting thing is, that it works on the desktop with the desktop jar, 
but it does not work on Android...

What steps will reproduce the problem?
See this: 
http://stackoverflow.com/questions/19050147/gwt-and-android-communication-serial
ization-issue

What is the expected output? What do you see instead?
Getting the result from the server. "Invalid type signature"

What version of the product are you using? On what operating system?
0.4 Android

Please provide any additional information below.

Original issue reported on code.google.com by [email protected] on 27 Sep 2013 at 12:36