code: @Nullable
    public static Long parseLongObj (@Nullable final Object aObject, @Nullable final Long aDefault)
    {
      return parseLongObj (aObject, DEFAULT_RADIX, aDefault);
    }
docs: Parse the given {@link Object} as {@link Long} with radix
  {@value #DEFAULT_RADIX}.
  
  @param aObject
  The object to parse. May be <code>null</code>.
  @param aDefault
  The default value to be returned if the passed object cannot be
  converted to a Long. May be <code>null</code>.
  @return <code>aDefault</code> if the object does not represent a valid
  value.