ef="ELException.html" title="class in jakarta.el">ELException</a></code> - if an exception was thrown while attempting to set the property or variable. The thrown exception
 must be included as the cause property of this exception, if available.</dd>
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<h4>isReadOnly</h4>
<pre class="methodSignature">public&nbsp;boolean&nbsp;isReadOnly&#8203;(<a href="ELCo