更新RM

xxl-job-core/src/main/java/com/xxl/job/core/rpc/netcom/jetty/server/JettyServer.java

@@ -47,7 +47,7 @@ public class JettyServer {
 				} catch (Exception e) {
 					logger.error("", e);
 				} finally {
-					server.destroy();
+					destroy();
 				}
 			}
 		});