diff --git a/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/ExtensionLoader.java b/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/ExtensionLoader.java
index b29bff4a..f1b08727 100644
--- a/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/ExtensionLoader.java
+++ b/client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support/ExtensionLoader.java
@@ -178,8 +178,6 @@ public class ExtensionLoader<T> {
 
     @SuppressWarnings("unchecked")
     private T createExtension(String name, String key) {
-        System.out.println("xxxxxxxxxxxxx");
-        getExtensionClasses().forEach((k, v) -> logger.info("fffff: " + k + " " + v.getName()));
         Class<?> clazz = getExtensionClasses().get(name);
         if (clazz == null) {
             throw new IllegalStateException("Extension instance(name: " + name + ", class: " + type