<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _add_arg_java(self, key, value, mask=False):
 """Add CLI Arg formatted specifically for Java. Args: key (string):
 The CLI Args key (e.g., --name). value (string):
 The CLI Args value (e.g., bob). mask (boolean, default:False):
 Indicates whether no mask value. """

        if isinstance(value, bool):
            value = int(value)
        self._data[key] = value
        self._args.append('{}{}={}'.format('-D', key, value))
        self._args_quoted.append(self.quote('{}{}={}'.format('-D', key, value)))
        if mask:
            value = 'x' * len(str(value))
        self._args_masked.append('{}{}={}'.format('-D', key, value))