Fix a checkstyle issue

git-svn-id: https://svn.apache.org/repos/asf/camel/trunk@1458458 13f79535-47bb-0310-9956-ffa450edef68
Fix a problem with the use of generics that is raising a warning

git-svn-id: https://svn.apache.org/repos/asf/camel/trunk@1458459 13f79535-47bb-0310-9956-ffa450edef68
Unneeded @SupressWarnings

git-svn-id: https://svn.apache.org/repos/asf/camel/trunk@1458460 13f79535-47bb-0310-9956-ffa450edef68
Use the HttpServletRequestWrapper instead of implementing the interface to reduce amount of code and simplify things.

git-svn-id: https://svn.apache.org/repos/asf/camel/trunk@1458461 13f79535-47bb-0310-9956-ffa450edef68
Fix some use of generics

git-svn-id: https://svn.apache.org/repos/asf/camel/trunk@1458462 13f79535-47bb-0310-9956-ffa450edef68