irstArg() {</span>
<span class="source-line-no">065</span><span id="line-65">        return !args.isEmpty() ? args.get(0) : null;</span>
<span class="source-line-no">066</span><span id="line-66">    }</span>
<span class="source-line-no">067</span><span id="line-67"></span>
<span class="source-line-no">068</span><span id="line-68">    public String getLastArg() {</span>
<span class="source-line-no">069</span><span id="line-69">        return !args.isEmpty() ? args.get(args.size() - 1) : null;</span>
<span cl