d><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ClassCastException.html?is-external=true" title="class or interface in java.lang">ClassCastException</a></code> - if <code>data</code> is not of the appropriate type for this <a href="../../../jakarta/faces/model/DataModel.html" title="class in jakarta.faces.model"><code>DataModel</code></a>
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