va.lang">IllegalArgumentException</a></code> - if value is <code>null</code>.</dd>
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<h4>EntityTag</h4>
<pre>public&nbsp;EntityTag(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;value,
                 boolean&nbsp;weak)</pre>
<div class="block">Creates a new instance of an <code>En