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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://issues.jboss.org/browse/WELD" style="color: #3b73af; text-decoration: none">Weld</a> / <a href="https://issues.jboss.org/browse/WELD-2261" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-2cb38e2a-a2a7-4d04-98e6-12bc0b93c89c" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://issues.jboss.org/browse/WELD-2261" style="color: #3b73af; text-decoration: none">WELD-2261</a> </td>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://issues.jboss.org/browse/WELD-2261" style="color: #3b73af; text-decoration: none">Programmatically added observer methods do not cause containing bean to be instantiated</a> </span> </td>
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 3.0.0.Alpha17 </td>
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Unassigned </td>
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Events </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Created:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 05/Dec/16 4:32 PM </td>
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="ljnelson" id="email_ljnelson" href="https://issues.jboss.org/secure/ViewProfile.jspa?name=ljnelson" style="color:#3b73af;; color: #3b73af; text-decoration: none">Laird Nelson</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0; margin-top: 0">When a bean is written with an observer method declared like this:</p> <p style="margin: 10px 0 0 0"></p>
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<td style=" line-height: 1.4em !important; padding: 0em; vertical-align: top;; padding: 0px; border-collapse: collapse"> <pre style="font-size: 1em; margin: 0 10px; margin-top: 10px; width: auto; padding: 0;; margin: 10px 0 0 0; margin-top: 0"><span style="color: black; font-family: 'Consolas', 'Bitstream Vera Sans Mono', 'Courier New', Courier, monospace !important;">public void onStartup(@Observes @Initialized(ApplicationScoped.class) final Object payload) {</span></pre> </td>
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</div> <p style="margin: 10px 0 0 0"></p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">...the bean is (properly) instantiated per <a href="http://docs.jboss.org/cdi/spec/2.0.EDR2/cdi-spec.html#observers_method_invocation" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">section 5.5.6 of the CDI specification</a>.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">If, instead, an equivalent <a href="http://docs.jboss.org/cdi/api/2.0.EDR2/javax/enterprise/inject/spi/AfterBeanDiscovery.html#addObserverMethod--" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">observer method is programmatically added</a>, the bean is not instantiated.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The specification does not seem to distinguish between these two cases, so in my opinion the CDI implementation here (Weld) needs to instantiate the bean when invoking a programmatically-added observer method.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Related forum discussion: <a href="https://developer.jboss.org/message/966109" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://developer.jboss.org/message/966109</a></p> </td>
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