public void setMessageId(String messageId) {
        this.messageId = messageId;
    }
<p>
The ID of the message that caused the error. (See the value corresponding to the <code>"messageId"</code> key in
the <code>"message"</code> object.)
</p>

@param messageId
       The ID of the message that caused the error. (See the value corresponding to the <code>"messageId"</code>
       key in the <code>"message"</code> object.)
aws-java-sdk-ioteventsdata/src/main/java/com/amazonaws/services/ioteventsdata/model/BatchPutMessageErrorEntry.java