@Override
    public java.util.concurrent.Future<TerminateJobFlowsResult> terminateJobFlowsAsync(TerminateJobFlowsRequest request) {

        return terminateJobFlowsAsync(request, null);
    }
Simplified method form for invoking the ModifyInstanceGroups operation with an AsyncHandler.

@see #modifyInstanceGroupsAsync(ModifyInstanceGroupsRequest, com.amazonaws.handlers.AsyncHandler)
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/AbstractAmazonElasticMapReduceAsync.java