JavaAgentRunner more reusable

git-svn-id: https://svn.apache.org/repos/asf/incubator/sirona/trunk@1561910 13f79535-47bb-0310-9956-ffa450edef68
possible to pass sys args from main surefire process

git-svn-id: https://svn.apache.org/repos/asf/incubator/sirona/trunk@1561911 13f79535-47bb-0310-9956-ffa450edef68