public void setInstanceIds(java.util.Collection<String> instanceIds) {
        if (instanceIds == null) {
            this.instanceIds = null;
            return;
        }

        this.instanceIds = new com.amazonaws.internal.SdkInternalList<String>(instanceIds);
    }
<p>
The instance IDs. Must be instances linked to a VPC through ClassicLink.
</p>

@param instanceIds
       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