UNIQUE, Collections.singletonList(a.getProperty(&quot;int1&quot;).orElseThrow()));</b>
<b class="fc">&nbsp;        a.ensureIndexExists(IndexType.NON_UNIQUE, Collections.singletonList(a.getProperty(&quot;int2&quot;).orElseThrow()));</b>
<b class="fc">&nbsp;        a.ensureIndexExists(IndexType.NON_UNIQUE, Collections.singletonList(a.getProperty(&quot;int3&quot;).orElseThrow()));</b>
<b class="fc">&nbsp;        a.ensureIndexExists(IndexType.NON_UNIQUE, Collections.singletonList(a.getProperty(&quot;int4&quot;)