             if (!roles.isEmpty()) {</span>
<span class="source-line-no">106</span><span id="line-106">                    role = roles.get(0);</span>
<span class="source-line-no">107</span><span id="line-107">                }</span>
<span class="source-line-no">108</span><span id="line-108">            }</span>
<span class="source-line-no">109</span><span id="line-109">            if (role == null) {</span>
<span class="source-line-no">110</span><span id="line-110">                throw new InvalidCommand