Upgrade path (#57)

* Allow to receive MessageS3Pointer and PayloadS3Pointer for compatibility with 1.x

Author: adam-aws

README.md

@@ -24,7 +24,7 @@ For more information on using the amazon-sqs-java-extended-client-lib, see our g
   <dependency>
     <groupId>com.amazonaws</groupId>
     <artifactId>amazon-sqs-java-extended-client-lib</artifactId>
-    <version>1.0.2</version>
+    <version>1.0.3</version>
     <type>jar</type>
   </dependency>
 ```

pom.xml

@@ -6,7 +6,7 @@
 
   <groupId>com.amazonaws</groupId>
   <artifactId>amazon-sqs-java-extended-client-lib</artifactId>
-  <version>1.0.2</version>
+  <version>1.0.3</version>
   <packaging>jar</packaging>
   <name>Amazon SQS Extended Client Library for Java</name>
   <description>An extension to the Amazon SQS client that enables sending and receiving messages up to 2GB via Amazon S3.

src/main/java/com/amazon/sqs/javamessaging/AmazonSQSExtendedClient.java

@@ -359,6 +359,8 @@ public ReceiveMessageResult receiveMessage(ReceiveMessageRequest receiveMessageR
 			if (largePayloadAttributeValue != null) {
 				String messageBody = message.getBody();
 
+				messageBody = messageBody.replace("software.amazon.payloadoffloading.PayloadS3Pointer", "com.amazon.sqs.javamessaging.MessageS3Pointer");
+
 				// read the S3 pointer from the message body JSON string.
 				MessageS3Pointer s3Pointer = readMessageS3PointerFromJSON(messageBody);