resteasy3 integration. using deprecated PreProcessor but working

allows integration with RESTEasy 3
When I run the integration test in Eclipse it fails with `java.lang.SecurityException: class "javax.servlet.HttpConstraintElement"'s signer information does not match signer information of other classes in the same package` exception.

This is most probably because there are 2 servlet dependency versions on the classpath. With Maven the test runs fine. However it looks like the `org.eclipse.jetty:jetty-servlet` dependency is not needed.  When I remove it test runs fine using both Maven and Eclipse.