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

        this.supportedEngineModes = new com.amazonaws.internal.SdkInternalList<String>(supportedEngineModes);
    }
<p>
A list of the supported DB engine modes for the target engine version.
</p>

@param supportedEngineModes
       A list of the supported DB engine modes for the target engine version.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/UpgradeTarget.java