Allow continue processing ClaimsHandler even exception occured

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1486180 13f79535-47bb-0310-9956-ffa450edef68
Claim returned even filtered list was empty

git-svn-id: https://svn.apache.org/repos/asf/cxf/trunk@1486181 13f79535-47bb-0310-9956-ffa450edef68