chore(autoconfig):pass checkstyle
diff --git a/rocketmq-spring-boot/src/main/java/org/apache/rocketmq/spring/support/RocketMQMessageConverter.java b/rocketmq-spring-boot/src/main/java/org/apache/rocketmq/spring/support/RocketMQMessageConverter.java
index a6f0af9..51a6719 100644
--- a/rocketmq-spring-boot/src/main/java/org/apache/rocketmq/spring/support/RocketMQMessageConverter.java
+++ b/rocketmq-spring-boot/src/main/java/org/apache/rocketmq/spring/support/RocketMQMessageConverter.java
@@ -18,10 +18,7 @@
 package org.apache.rocketmq.spring.support;
 
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
-import java.util.Objects;
-
 import org.springframework.messaging.converter.ByteArrayMessageConverter;
 import org.springframework.messaging.converter.CompositeMessageConverter;
 import org.springframework.messaging.converter.MappingJackson2MessageConverter;