diff --git a/src/org/redkale/net/http/WebSocketNode.java b/src/org/redkale/net/http/WebSocketNode.java
index 94d549e6c..d0bc4efdc 100644
--- a/src/org/redkale/net/http/WebSocketNode.java
+++ b/src/org/redkale/net/http/WebSocketNode.java
@@ -82,12 +82,12 @@ public abstract class WebSocketNode {
 
     //--------------------------------------------------------------------------------
     final CompletableFuture<Void> connect(final Serializable userid) {
-        if (logger.isLoggable(Level.FINEST)) logger.finest(localSncpAddress + " receive websocket connect event (" + userid + " on " + this.localEngine.getEngineid() + ").");
+        if (logger.isLoggable(Level.FINEST)) logger.finest(localSncpAddress + " receive websocket connect event (" + userid + " on " + (this.localEngine == null ? null : this.localEngine.getEngineid()) + ").");
         return connect(userid, localSncpAddress);
     }
 
     final CompletableFuture<Void> disconnect(final Serializable userid) {
-        if (logger.isLoggable(Level.FINEST)) logger.finest(localSncpAddress + " receive websocket disconnect event (" + userid + " on " + this.localEngine.getEngineid() + ").");
+        if (logger.isLoggable(Level.FINEST)) logger.finest(localSncpAddress + " receive websocket disconnect event (" + userid + " on " + (this.localEngine == null ? null : this.localEngine.getEngineid()) + ").");
         return disconnect(userid, localSncpAddress);
     }