Deleting AWS SQS messages using Java sdk

I am researching AWS SQS service. When trying to remove a message from the queue using the java sdk, I got a problem.

A queue is created in SQS and contains three messages. The queue is maintained by AWS S3 for handling large messages.

Here is the method used to receive messages by polling multiple times.

Receive SQS message:

private static void receiveMessage(String queueUrl) {
        // Receive messages
        ReceiveMessageRequest receiveMessageRequest = new ReceiveMessageRequest(queueUrl).withMaxNumberOfMessages(10)
                .withWaitTimeSeconds(10).withVisibilityTimeout(100);
        List<Message> messages = sqsExtended.receiveMessage(receiveMessageRequest).getMessages();
        System.out.println("Number of mesasges : First poll : " + messages.size());
        while (messages.size() > 0) {
            messages = pollForMessages(messages, receiveMessageRequest, queueUrl);
            System.out.println("Messages in next poll : " + messages.size());
        }
        if (messages.size() > 0) {
            System.out.println("displaying last set of messages ");
            for (int i = 0; i < messages.size(); i++) {
                System.out.println("\nMessage received:");
                System.out.println(" ID: " + messages.get(i).getMessageId());
                System.out.println(" Receipt handle: " + messages.get(i).getReceiptHandle());
                System.out.println("approx. num of messages : "
                        + messages.get(i).getAttributes().get("ApproximateNumberOfMessages"));
                System.out.println(" Message body (first sentence): " + messages.get(i).getBody().substring(0, 56));
                // deleteMessage(messages.get(i), queueUrl);
            }
            deleteMessage(messages, queueUrl);
        }
    }

      

        
        
        
      

    

Message polling method:

private static List<Message> pollForMessages(List<Message> messages, ReceiveMessageRequest receiveMessageRequest,
            String queueUrl) {
        // display the received messages
        for (int i = 0; i < messages.size(); i++) {
            System.out.println("\nMessage received:");
            System.out.println(" ID: " + messages.get(i).getMessageId());
            System.out.println(" Receipt handle: " + messages.get(i).getReceiptHandle());
            System.out.println(
                    "approx. num of messages : " + messages.get(i).getAttributes().get("ApproximateNumberOfMessages"));
            System.out.println(" Message body (first sentence): " + messages.get(i).getBody().substring(0, 56));
            // deleteMessage(messages.get(i), queueUrl);
        }
        deleteMessage(messages, queueUrl);
        messages = sqsExtended.receiveMessage(receiveMessageRequest).getMessages();
        return messages;
    }

      

        
        
        
      

    

Delete SQS message:

private static void deleteMessage(List<Message> messages, String queueUrl) {
        // Delete the messages
        for (Message message : messages) {
            DeleteMessageRequest dmr = new DeleteMessageRequest();
            dmr.withQueueUrl(queueUrl).withReceiptHandle(message.getReceiptHandle());
            sqsExtended.deleteMessage(dmr);
            System.out.println("Deleted the message with Id : " + message.getMessageId());
        }

    }

      

        
        
        
      

    

When a method call is made deleteMessage

, the program catches the following exception:

java.lang.AbstractMethodError: com.amazon.sqs.javamessaging.AmazonSQSExtendedClient.deleteMessage(Lcom/

      

        
        
        
      

    

Log messages:

Apr 21, 2017 5:32:56 PM com.amazon.sqs.javamessaging.ExtendedClientConfiguration setLargePayloadSupportEnabled
INFO: Large-payload support enabled.
Number of mesasges : First poll : 1

Message received:
 ID: f4f00368-b308-4763-84cf-8e33e1931fed
 Receipt handle: AQEBwhLDOIMobJazre1KoSYoMlHajHD1A6j7gZClk1h4FYWAmFd0p6wIFU69rSuhhVdQef+qF6E6RQIQLWaLqS2r0/Kfw3rUrmppIkTcowsVRW36uJ3p4UqnNjZu0cxncNMw78kHfHRej0gwH0gvvMedZXvEimoXUYZq1+K3Gz35etKsUR9EPKuroYaHZ6Aghdu0Osb4cQu+iLxlBrANhFl63762V7EDEEjSeULyQm52wS/OQq7JiktRWFgyGkp/41tHlN3ARB0v2MM3wXaoZMBt8bAyGURXb+Nx+5e3UoSI5J8pQccSwFnk70N1lV7XUswBTk4549uJ0FPlEMoFef6cxeFi1nxEXkfwIJQ9e93wMJUGLnhsx7rNWhS9w6UCVv4yZoARBsMrQbg287LkACLLnw==
approx. num of messages : null
 Message body (first sentence): {
  "Type" : "Notification",
  "MessageId" : "fc1b19bc-6
Exception in thread "main" java.lang.AbstractMethodError: com.amazon.sqs.javamessaging.AmazonSQSExtendedClient.deleteMessage(Lcom/amazonaws/services/sqs/model/DeleteMessageRequest;)Lcom/amazonaws/services/sqs/model/DeleteMessageResult;
    at org.nfjs.aws.sqs.SQSExtendedClient.deleteMessage(SQSExtendedClient.java:149)
    at org.nfjs.aws.sqs.SQSExtendedClient.pollForMessages(SQSExtendedClient.java:139)
    at org.nfjs.aws.sqs.SQSExtendedClient.receiveMessage(SQSExtendedClient.java:108)
    at org.nfjs.aws.sqs.SQSExtendedClient.main(SQSExtendedClient.java:63)

      

        
        
        
      

    

I couldn't pinpoint the exact reason for the exception. Am I missing something in the above code snippet using java sdk?

Thanks in advance for any suggestions.