@Override
    public RebootInstancesResult rebootInstances(RebootInstancesRequest request) {
        request = beforeClientExecution(request);
        return executeRebootInstances(request);
    }
<p>
Requests a reboot of the specified instances. This operation is asynchronous; it only queues a request to reboot
the specified instances. The operation succeeds if the instances are valid and belong to you. Requests to reboot
terminated instances are ignored.
</p>
<p>
If an instance does not cleanly shut down within a few minutes, Amazon EC2 performs a hard reboot.
</p>
<p>
For more information about troubleshooting, see <a
href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-console.html">Troubleshoot an unreachable
instance</a> in the <i>Amazon EC2 User Guide</i>.
</p>

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