src-plugin/com/wentch/redkale/net/socks/SocksRunner.java

@@ -153,7 +153,9 @@ public class SocksRunner implements Runnable {
         new StreamCompletionHandler(remoteChannel, channel).completed(0, null);
     }
 
-    public synchronized void closeRunner(final Throwable e) {
+    public void closeRunner(final Throwable e) {
+        if (closed) return;
+        synchronized (this) {
             if (closed) return;
             closed = true;
             try {
@@ -166,6 +168,7 @@ public class SocksRunner implements Runnable {
                 logger.log(Level.FINEST, "close socks channel by error", e);
             }
         }
+    }
 
     private class StreamCompletionHandler implements CompletionHandler<Integer, Void> {