pened&quot;);</b>
&nbsp;        } catch (Exception ignore) {
&nbsp;        }
&nbsp;    }
&nbsp;
&nbsp;    @Test
&nbsp;    public void testRollback() {
<b class="fc">&nbsp;        Vertex v1 = this.sqlgGraph.addVertex(T.label, &quot;Person&quot;);</b>
<b class="fc">&nbsp;        this.sqlgGraph.tx().commit();</b>
<b class="fc">&nbsp;        v1.property(&quot;name&quot;, &quot;john&quot;);</b>
<b class="fc">&nbsp;        this.sqlgGraph.tx().rollback();</b>
<b class="pc">&nbsp;        if (this.sqlgGraph.getSqlDi