diff --git a/src/main/java/com/palnet/server/handler/WebHandler.java b/src/main/java/com/palnet/server/handler/WebHandler.java
index e260d11..65155d3 100644
--- a/src/main/java/com/palnet/server/handler/WebHandler.java
+++ b/src/main/java/com/palnet/server/handler/WebHandler.java
@@ -29,12 +29,12 @@ import java.nio.charset.Charset;
 @Slf4j
 public class WebHandler extends SimpleChannelInboundHandler<WebSocketFrame> {
 
-	private Logger logger = LoggerFactory.getLogger(getClass());
+	private final Logger logger = LoggerFactory.getLogger(getClass());
 
 
-	private CtrCntrlTaskService taskService;
-	private CtrHistoryShareContext context;
-	private ObjectMapper objectMapper;
+	private final CtrCntrlTaskService taskService;
+	private final CtrHistoryShareContext context;
+	private final ObjectMapper objectMapper;
 
 	public WebHandler() {
 		this.taskService = (CtrCntrlTaskService) ContextUtils.getBean("ctrCntrlTaskService");
@@ -42,7 +42,8 @@ public class WebHandler extends SimpleChannelInboundHandler<WebSocketFrame> {
 		this.objectMapper = JsonUtils.getObjectMapper();
 	}
 
-	ChannelCollection cc = new ChannelCollection();
+	private final ChannelCollection cc = new ChannelCollection();
+
 
 	@Override
 	protected void channelRead0(ChannelHandlerContext ctx, WebSocketFrame frame) throws Exception {