Error in SQS lib when saving work stats

[abyrd]

15:11:50.267 ERROR (SQSTaskStatisticsStore.java:54) Error saving stats to SQS
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.List
    at com.amazonaws.services.sqs.QueueUrlHandler.beforeRequest(QueueUrlHandler.java:39) ~[aws-java-sdk-sqs-1.10.10.jar:na]
    at com.amazonaws.handlers.RequestHandler2Adaptor.beforeRequest(RequestHandler2Adaptor.java:37) ~[aws-java-sdk-core-1.9.39.jar:na]
    at com.amazonaws.http.AmazonHttpClient.requestHandler2s(AmazonHttpClient.java:405) ~[aws-java-sdk-core-1.9.39.jar:na]
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:283) ~[aws-java-sdk-core-1.9.39.jar:na]
    at com.amazonaws.services.sqs.AmazonSQSClient.invoke(AmazonSQSClient.java:2419) ~[aws-java-sdk-sqs-1.10.10.jar:na]
    at com.amazonaws.services.sqs.AmazonSQSClient.sendMessageBatch(AmazonSQSClient.java:783) ~[aws-java-sdk-sqs-1.10.10.jar:na]
    at com.amazonaws.services.sqs.buffered.SendQueueBuffer$SendMessageBatchTask.process(SendQueueBuffer.java:510) ~[aws-java-sdk-sqs-1.10.10.jar:na]
    at com.amazonaws.services.sqs.buffered.SendQueueBuffer$OutboundBatchTask.run(SendQueueBuffer.java:441) ~[aws-java-sdk-sqs-1.10.10.jar:na]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_51]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_51]

[mattwigway]

This is actually an issue in the latest version of the AWS Java SDK. If we revert to the previous version, we don't have support for m4.xlarge instances that we use as workers.