[jboss-jira] [JBoss JIRA] (WFLY-7048) Servlet 3.x metadata-complete="true" does not honour absolute-ordering element

Darryl Miles (JIRA) issues at jboss.org
Mon Sep 5 11:02:00 EDT 2016


Darryl Miles created WFLY-7048:
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             Summary: Servlet 3.x metadata-complete="true" does not honour absolute-ordering element
                 Key: WFLY-7048
                 URL: https://issues.jboss.org/browse/WFLY-7048
             Project: WildFly
          Issue Type: Bug
          Components: Web (Undertow)
    Affects Versions: 10.1.0.Final
            Reporter: Darryl Miles
            Assignee: Stuart Douglas


Servlet 3.x metadata-complete="true" does not honour absolute-ordering element.

If I have a web.xml that sets metadata-complete="true" in the <web-app> element.

The container is expected to only allow the initialization of the named entries inside the <absolute-ordering> element that does not have the presense of an <others/> element inside it.

So a metadata-complete="true" with a non-existing (or empty) <absolute-ordering> is expected to effectively filter and then exclude ALL ServletContainerInitializer found.  Since nothing was specified by a <name> element, and the <others/> element is not present.

This might also be considered a fast-path to prevent any package scanning for annotations / interfaces.


The bug here is that I can observe no change in behaviour (regardless of metadata-complete="true" setting, or the contents I tried of the <absolute-ordering> element, it always has the same results of finding and processing everything found in the classpath JARs).


Does WEB-INF/jboss-web.xml support undertow specific filtering of the packages to scan for ServletContainerInitializer ?  Many other contains have support for this (jetty/tomcat) and the jboss-web.xml seems the obvious place to put it.

I can provide references to this feature, since it still helps in the developmentMode scenario (where I spend most of my time and care most about startup performance).

Also the servlet 3.x spec seem to have omited the notion of allowing WEB-INF/classes to contain a ServletContainerInitializer, they omitted having a section in web.xml to provide this, they omitted allowing a WAR to have WEB-INF/META-INF/services/javax.servlet.ServletContainerInitializer as well.




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