[jboss-jira] [JBoss JIRA] (WFLY-2690) JSP/JSPX tags don't work with Wildfly CR1

[Jozef Hartinger (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-2690?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12934349#comment-12934349 ] 

Jozef Hartinger commented on WFLY-2690:
---------------------------------------

We can sacrifice deterministic IDs for InjectionTargets of JSP components, since these will never be passivated. However, we cannot do this globally in Weld's AnnotatedTypeIdentifier since that would affect all component types including contextual ones. See the PR.

AFAIK in AS7 this approach of using multiple classloaders to load a single class was not used and therefore the problem did not occur.
                
> JSP/JSPX tags don't work with Wildfly CR1
> -----------------------------------------
>
>                 Key: WFLY-2690
>                 URL: https://issues.jboss.org/browse/WFLY-2690
>             Project: WildFly
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Web (Undertow)
>    Affects Versions: 8.0.0.CR1
>         Environment: OpenJDK Runtime Environment (fedora-2.4.3.0.fc18-x86_64 u45-b15)
> OpenJDK 64-Bit Server VM (build 24.45-b08, mixed mode)
>            Reporter: Otávio Garcia
>            Assignee: Jozef Hartinger
>
> My app works fine on JBoss AS 7.1. When I migrate to Wildfly 8.0.0 CR1, my JSP tags don't work as expected. My project is a EAR with WAR module.
> When app starts, in the 1st access to page A, tag file is compiled and the page are rendered fine. But when I access another page (B in example), I got this error: org.apache.jasper.JasperException: java.lang.ClassCastException: org.apache.jsp.tag.web.default_tagx cannot be cast to org.apache.jsp.tag.web.default_tagx
> If I restart Wildfly and try to access page B, works fine. But when I access page A, I got the same error.
> My default.tagx is bellow:
> <jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:html="http://www.w3.org/1999/xhtml" version="2.2">
>     <jsp:output doctype-root-element="HTML" doctype-system="about:legacy-compat" omit-xml-declaration="yes" />
>     some code
>     <jsp:doBody />
>     more code
> </jsp:root>
> And the pages are somethink like this:
> <tags:default xmlns:tags="urn:jsptagdir:/WEB-INF/tags" xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:html="http://www.w3.org/1999/xhtml">
>     <jsp:output omit-xml-declaration="yes" />
>     my code here
> </tags:default>
> I was created a new empty project with two pages and one tagfile. The error don't occurs. But when I add CDI capabilities, the error occurs. There are something in CDI that confuses Jastow?
> As discussed here: https://community.jboss.org/message/850730

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