public void setAssets(java.util.Collection<Asset> assets) {
        if (assets == null) {
            this.assets = null;
            return;
        }

        this.assets = new java.util.ArrayList<Asset>(assets);
    }
<p>
The assets that comprise the validation data.
</p>

@param assets
       The assets that comprise the validation data.
aws-java-sdk-rekognition/src/main/java/com/amazonaws/services/rekognition/model/ValidationData.java