each extension at the beginning of the application initialization process and
 maintains a reference to it until the application shuts down. The container delivers event notifications to this instance by
 calling its observer methods.
 </p>
 
 <p>
 Service providers are made available for injection as beans with the qualifier <a href="../../../../javax/enterprise/inject/Default.html" title="annotation in javax.enterprise.inject"><code>&#064;Default</code></a>.
 </p></div>
<dl>
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