Example of invalid code:

public enum CustomerStatus {
    {values=[N, P, A], enumVars=[{name=N, value="N"}, {name=P, value="P"}, {name=A, value="A"}]}
}

Apparently JavaJaxRS/resteasy/enumOuterClass.mustache template was not updated to accommodate to changes in enum representation introduced in 1058728

I've verfied that copying the contents of JavaJaxRS/resteasy/eap/enumOuterClass.mustache to JavaJaxRS/resteasy/enumOuterClass.mustache fixes the problem. I'll post a PR shortly.