@Override
    public ConfirmProductInstanceResult confirmProductInstance(ConfirmProductInstanceRequest request) {
        request = beforeClientExecution(request);
        return executeConfirmProductInstance(request);
    }
<p>
Determines whether a product code is associated with an instance. This action can only be used by the owner of
the product code. It is useful when a product code owner must verify whether another user's instance is eligible
for support.
</p>

@param confirmProductInstanceRequest
@return Result of the ConfirmProductInstance operation returned by the service.
@sample AmazonEC2.ConfirmProductInstance
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/ConfirmProductInstance" target="_top">AWS API
     Documentation</a>
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/AmazonEC2Client.java