public void setInstanceTypeSpecifications(java.util.Collection<InstanceTypeSpecification> instanceTypeSpecifications) {
        if (instanceTypeSpecifications == null) {
            this.instanceTypeSpecifications = null;
            return;
        }

        this.instanceTypeSpecifications = new com.amazonaws.internal.SdkInternalList<InstanceTypeSpecification>(instanceTypeSpecifications);
    }
<p>
An array of specifications for the instance types that comprise an instance fleet.
</p>

@param instanceTypeSpecifications
       An array of specifications for the instance types that comprise an instance fleet.
aws-java-sdk-emr/src/main/java/com/amazonaws/services/elasticmapreduce/model/InstanceFleet.java