code: private String getTypeString(Class<?> c)
     {
        String result = TYPE_MAP.get(c);
        if (result == null)
        {
           result = c.getName();
           if (!result.endsWith(";") && !result.startsWith("["))
           {
              result = "L" + result + ";";
           }
        }
        return result;
     }
docs: Converts a class into a signature token.
  
  @param c class
  @return signature token text