code: public byte[] getData() {
          if (this.data == null) {
              return new byte[] { };
          }
          if (this.data.length == 0) {
              Family family = getSaFamily();
              if (family == Family.AF_INET6) {
                  this.data = new byte[Inet6Address.IPV6_ADDRESS_LENGTH];
              } else {
                  this.data = new byte[Inet4Address.IPV4_ADDRESS_LENGTH];
              }
          }
          byte[] data = new byte[this.data.length];
          System.arraycopy(this.data, 0, data, 0, data.length);
          return data;
      }
docs: Returns bytes address of SockAddr.
  @return returns bytes address.