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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-2031" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-5170204a-9621-491a-9dee-a9a201ff9685" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://issues.jboss.org/browse/WELD-2031" style="color: #3b73af; text-decoration: none">WELD-2031</a>
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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-2031" style="color: #3b73af; text-decoration: none">Jetty Decorator use is wrong (documentation and code)</a> </span>
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17/Sep/15 11:19 AM
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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="joakime" id="email_joakime" href="https://issues.jboss.org/secure/ViewProfile.jspa?name=joakime" style="color:#3b73af;; color: #3b73af; text-decoration: none">Joakim Erdfelt</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">In reference to ..<br /> <a href="https://docs.jboss.org/weld/reference/latest/en-US/html/environments.html#_jetty" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://docs.jboss.org/weld/reference/latest/en-US/html/environments.html#_jetty</a></p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">That doesn't do what you think it does.<br /> Since you are calling Set on serverClasses with an array you are overwriting all of the previous serverClasses entries with your entry.<br /> And since your entry starts with a "-" (negation), you essentially wind up with no serverClasses entries.<br /> Which basically removes all of the WebApp ClassLoader isolation. (a bad thing)</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">In Jetty 8, there were no options for "append" or "prepend" of the serverClasses, so you would essentially have to copy/paste the entries into a new list with your entry at the top.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">In Jetty 9.0 thru 9.2 you can prepend the list, however your single entry isn't enough.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">{{ <!-- relax the classloader to allow weld to see jetty server and servlet classes --><br /> <Call name="prependServerClass"><br /> <Arg>-org.eclipse.jetty.server.</Arg><br /> </Call><br /> <Call name="prependServerClass"><br /> <Arg>-org.eclipse.jetty.servlet.</Arg><br /> </Call><br /> }}</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This would be the minimum feature set to support to access the ServletContextHandler$Decorator</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">But even this is too much to expose, so Jetty 9.3 made the exposure even easier, but it will require code changes in Weld to support properly.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">First, the <a href="http://download.eclipse.org/jetty/9.3.3.v20150827/apidocs/org/eclipse/jetty/servlet/ServletContextHandler.Decorator.html" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">org.eclipse.jetty.servlet.ServletContextHandler$Decorator</a> has been deprecated.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">It has been replaced with <a href="http://download.eclipse.org/jetty/9.3.3.v20150827/apidocs/org/eclipse/jetty/util/Decorator.html" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">org.eclipse.jetty.util.Decorator</a></p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">To add/remove Decorators, you use the <a href="http://download.eclipse.org/jetty/9.3.3.v20150827/apidocs/org/eclipse/jetty/util/DecoratedObjectFactory.html" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">org.eclipse.jetty.util.DecoratedObjectFactory</a> accessed via a ServletContext.getAttribute(DecoratedObjectFactory.ATTR)</p>
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