ttributes--"><code>configureBeanAttributes()</code></a>.
 If both methods are called within an observer notification an <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang"><code>IllegalStateException</code></a> is thrown.
 The container must use the final value of this property, after all observers have been called, to manage instances of the bean.
 </p>
 <p>
 If any observer method of a <code>ProcessBeanAttributes