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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.redhat.com/browse/WELD" style="color: #3b73af; text-decoration: none">Weld</a> / <a href="https://issues.redhat.com/browse/WELD-2628" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-f9f86d1a-6a8d-493b-8bb7-dd93666f61d5" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://issues.redhat.com/browse/WELD-2628" style="color: #3b73af; text-decoration: none">WELD-2628</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.redhat.com/browse/WELD-2628" style="color: #3b73af; text-decoration: none">AfterTypeDiscovery added alternative gets ineffective priority</a> </span> </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">Issue Type:</th>
<td class="has-icon" style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-avatar-f9f86d1a-6a8d-493b-8bb7-dd93666f61d5" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"> Bug </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">Affects Versions:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 3.1.4.Final </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">Assignee:</th>
<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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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Components:</th>
<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Extensions </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"> 29/May/20 3:04 PM </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">Priority:</th>
<td class="has-icon" style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-minor-8e813f7d-6853-4f0f-9411-8ab9fcbecc42" height="16" width="16" border="0" align="absmiddle" alt="Minor" style="vertical-align: text-bottom"> Minor </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">Reporter:</th>
<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="karlvr" id="email_karlvr" href="https://issues.redhat.com/secure/ViewProfile.jspa?name=karlvr" style="color:#0066cc;; color: #3b73af; text-decoration: none">Karl von Randow</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 an Extension adds an alternative in <tt>AfterTypeDiscovery</tt>, the alternative gets assigned a priority by <tt>org.jboss.weld.bootstrap.enablement.EnablementListView#getPriority</tt> based upon the previous <em>item</em> in the alternatives list (it adds 10).</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Note that it uses the previous one item only, so it assigns a priority greater than the currently last item, not greater than the priority of any other alternatives.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">If prior to <tt>AfterTypeDiscovery</tt> the alternatives list already contains an alternative implementation of <tt>FooService</tt> with a priority (say 100), but it's not the last item in the alternatives list, then an Extension adds another alternative of <tt>FooService</tt>, that new alternative will get a priority 10 greater than the priority of the last alternative in the list, but not necessarily greater than 100, and therefore will not be chosen.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I believe the order of items in the list of alternatives should be used to choose the alternative implementation.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Perhaps the <tt>EnablementListView</tt> should consider the maximum priority of all entries in the alternatives list when added a new alternative. Perhaps that means a renumbering of priorities on all alternatives is necessary (for when someone goes Integer.MAX_VALUE).</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I am happy to contribute a patch if I'm on the right track.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This may be related to <a href="https://issues.redhat.com/browse/CDI-437" title="The container cannot use the final value of AfterTypeDiscovery.getAlternatives() properly" class="issue-link" data-issue-key="CDI-437" style="color: #3b73af; text-decoration: none">CDI-437</a>.</p> </td>
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