en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&nbsp;property)</span></div>
<div class="block">If the base object is a Java language array, returns whether a call to <a href="#setValue(jakarta.el.ELContext,java.lang.Object,java.lang.Object,java.lang.Object)"><code>setValue(jakarta.el.ELContext, java.lang.Object, java.lang.Object, java.lang.Object)</code></a> will always fail.

 <p>
 If the base is a Java language array, the