Producer-jakarta.enterprise.inject.spi.Producer-"><code>setProducer(Producer)</code></a> or <a href="../../../../jakarta/enterprise/inject/spi/ProcessProducer.html#configureProducer--"><code>configureProducer()</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 fin