Hi All, I have deployed the rest service in Tomcat 7. When I am hitting the resource through browser; resulting is coming. But when I am sending continuous hit for the resource through CTRL+F5 or through Apache J Meter; it is throwing Exception: Some errors exists in packageBuilder [DialectError message='Unable to wire compiled classes, probably related to compilation failures:null'] Or some times - Some errors exists in packageBuilder [DialectError message='Unable to wire compiled classes, probably related to compilation failures:JavaDialect '] But when I added "core-3.4.2.v_883_R34x.jar" in the class path; first error message come up frequently. I am using DroolsInitializer java class where different way of executing rules method is written. I am also using some of your method; where in both cases same exception is coming up. Please look on this. Love Kumar Shorav