public java.util.List<String> getInstanceIds() {
        if (instanceIds == null) {
            instanceIds = new com.amazonaws.internal.SdkInternalList<String>();
        }
        return instanceIds;
    }
<p>
The instance IDs. Must be instances linked to a VPC through ClassicLink.
</p>

@return The instance IDs. Must be instances linked to a VPC through ClassicLink.
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/model/DescribeClassicLinkInstancesRequest.java