import java.net.UnknownHostException;
import java.security.SecureRandom;

import org.codelibs.core.lang.StringUtil;

/**
 * UUIDを作成するユーティリティです。
 *
 * @author higa
 */
public abstract class UuidUtil {

    private static final byte[] DEFAULT_ADDRESS = new byte[] { (byte) 127, (byte) 0, (byte) 0, (byte) 1 };

    private static final SecureRandom RANDOM = new SecureRandom();

import java.net.InetSocketAddress
import java.net.ProtocolException
import java.net.Proxy
import java.net.ServerSocket
import java.net.Socket
import java.net.SocketException
import java.security.SecureRandom
import java.security.cert.CertificateException
import java.security.cert.X509Certificate
import java.util.Collections
import java.util.Locale
import java.util.concurrent.ConcurrentHashMap