Deprecate sendMessageBack for change it's visibilty in the future

client/src/main/java/org/apache/rocketmq/client/consumer/DefaultMQPullConsumer.java

@@ -186,7 +186,6 @@ public class DefaultMQPullConsumer extends ClientConfig implements MQPullConsume
         return brokerSuspendMaxTimeMillis;
     }
 
-
     /**
      * This method will be removed in a certain version after April 5, 2020, so please do not use this method.
      */
@@ -243,12 +242,22 @@ public class DefaultMQPullConsumer extends ClientConfig implements MQPullConsume
         this.registerTopics = registerTopics;
     }
 
+    /**
+     * This method will be removed or it's visibility will be changed in a certain version after April 5, 2020, so
+     * please do not use this method.
+     */
+    @Deprecated
     @Override
     public void sendMessageBack(MessageExt msg, int delayLevel)
         throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
         this.defaultMQPullConsumerImpl.sendMessageBack(msg, delayLevel, null);
     }
 
+    /**
+     * This method will be removed or it's visibility will be changed in a certain version after April 5, 2020, so
+     * please do not use this method.
+     */
+    @Deprecated
     @Override
     public void sendMessageBack(MessageExt msg, int delayLevel, String brokerName)
         throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
@@ -385,7 +394,6 @@ public class DefaultMQPullConsumer extends ClientConfig implements MQPullConsume
         return offsetStore;
     }
 
-
     /**
      * This method will be removed in a certain version after April 5, 2020, so please do not use this method.
      */

client/src/main/java/org/apache/rocketmq/client/consumer/DefaultMQPushConsumer.java

@@ -579,6 +579,9 @@ public class DefaultMQPushConsumer extends ClientConfig implements MQPushConsume
     /**
      * Send message back to broker which will be re-delivered in future.
      *
+     * This method will be removed or it's visibility will be changed in a certain version after April 5, 2020, so
+     * please do not use this method.
+     *
      * @param msg Message to send back.
      * @param delayLevel delay level.
      * @throws RemotingException if there is any network-tier error.
@@ -586,6 +589,7 @@ public class DefaultMQPushConsumer extends ClientConfig implements MQPushConsume
      * @throws InterruptedException if the thread is interrupted.
      * @throws MQClientException if there is any client error.
      */
+    @Deprecated
     @Override
     public void sendMessageBack(MessageExt msg, int delayLevel)
         throws RemotingException, MQBrokerException, InterruptedException, MQClientException {
@@ -596,6 +600,9 @@ public class DefaultMQPushConsumer extends ClientConfig implements MQPushConsume
      * Send message back to the broker whose name is <code>brokerName</code> and the message will be re-delivered in
      * future.
      *
+     * This method will be removed or it's visibility will be changed in a certain version after April 5, 2020, so
+     * please do not use this method.
+     *
      * @param msg Message to send back.
      * @param delayLevel delay level.
      * @param brokerName broker name.
@@ -604,6 +611,7 @@ public class DefaultMQPushConsumer extends ClientConfig implements MQPushConsume
      * @throws InterruptedException if the thread is interrupted.
      * @throws MQClientException if there is any client error.
      */
+    @Deprecated
     @Override
     public void sendMessageBack(MessageExt msg, int delayLevel, String brokerName)
         throws RemotingException, MQBrokerException, InterruptedException, MQClientException {