code: public byte[] getBytes() {
          if (token != null) {
              try {
                  return token.getBytes();
              } catch (Exception e) {
                  if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
                      Tr.debug(tc, "Exception occurred getting bytes[] from token.", new Object[] { e });
                  return null;
              }
          } else
              return new byte[0];
      }
docs: Gets the bytes to be sent across the wire. The information in the byte[]
  needs to be enough to recreate the Token object at the target server.
  
  @return byte[]