Created attachment 631962 [details]
The error which appears directly after clicking at the "Create" button in the application

Description of problem:
After successful deployment of the jaxrs-demo example at EAP 6.0.0.GA from the Errai example distribution, the application does not work properly after clicking at the "Create" button. In the backend, the error (sent as an attachment) appears.

Version-Release number of selected component (if applicable):
errai-2.1.0.Final-redhat-1/jaxrs-examples/jaxrs-demo

How reproducible:
Always

Steps to Reproduce:
1. compile
2. deploy
3. use & click at the "Create" button
4. see the error as in the attachment
  
Actual results:
deployable but not functioning application

Expected results:
functioning application

Additional info:
There may be an issue with different resteasy version which is used as it is needed.