code: public static String stringifyAliasesParameters(Map<Byte, AbstractType<?>> aliases)
      {
          StringBuilder sb = new StringBuilder();
          sb.append('(');
          Iterator<Map.Entry<Byte, AbstractType<?>>> iter = aliases.entrySet().iterator();
          if (iter.hasNext())
          {
              Map.Entry<Byte, AbstractType<?>> entry = iter.next();
              sb.append((char)(byte)entry.getKey()).append("=>").append(entry.getValue());
          }
          while (iter.hasNext())
          {
              Map.Entry<Byte, AbstractType<?>> entry = iter.next();
              sb.append(',').append((char)(byte)entry.getKey()).append("=>").append(entry.getValue());
          }
          sb.append(')');
          return sb.toString();
      }
docs: Helper function to ease the writing of AbstractType.toString() methods.