public Long getGroupId() {
        return this.groupId;
    }
<p>
The default group ID for the file share (unless the files have another group ID specified). The default value is
<code>nfsnobody</code>.
</p>

@return The default group ID for the file share (unless the files have another group ID specified). The default
        value is <code>nfsnobody</code>.
aws-java-sdk-storagegateway/src/main/java/com/amazonaws/services/storagegateway/model/NFSFileShareDefaults.java