public String getEc2InstanceId() {
        return this.ec2InstanceId;
    }
<p>
The ID of the Amazon EC2 instance that was used to launch the gateway.
</p>

@return The ID of the Amazon EC2 instance that was used to launch the gateway.
aws-java-sdk-storagegateway/src/main/java/com/amazonaws/services/storagegateway/model/DescribeGatewayInformationResult.java