-import org.codehaus.enunciate.jaxrs.ResponseCode;
-import org.codehaus.enunciate.jaxrs.StatusCodes;
-import org.opendaylight.controller.networkconfig.neutron.INeutronFirewallPolicyAware;
-import org.opendaylight.controller.networkconfig.neutron.INeutronFirewallPolicyCRUD;
-import org.opendaylight.controller.networkconfig.neutron.NeutronCRUDInterfaces;
-import org.opendaylight.controller.networkconfig.neutron.NeutronFirewallPolicy;
-import org.opendaylight.controller.northbound.commons.RestMessages;
-import org.opendaylight.controller.northbound.commons.exception.BadRequestException;
-import org.opendaylight.controller.northbound.commons.exception.ResourceNotFoundException;
-import org.opendaylight.controller.northbound.commons.exception.ServiceUnavailableException;
-import org.opendaylight.controller.sal.utils.ServiceHelper;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;