ot;, &quot;a&quot;);</b>
<b class="nc">&nbsp;            this.sqlgGraph.tx().commit();</b>
<b class="fc">&nbsp;        } catch (Exception e) {</b>
<b class="fc">&nbsp;            failure = true;</b>
<b class="fc">&nbsp;            this.sqlgGraph.tx().rollback();</b>
&nbsp;        }
<b class="fc">&nbsp;        Assert.assertTrue(failure);</b>
<b class="fc">&nbsp;        failure = false;</b>
&nbsp;        try {
<b class="fc">&nbsp;            Vertex a = this.sqlgGraph.addVertex(T.label, &quot;A&quot;, &quot;na