[jboss-jira] [JBoss JIRA] (WFLY-3100) ClassCastException in JSPs where spring-web tags and jstl tags are used

Mon Dec 15 08:04:30 EST 2014

    [ https://issues.jboss.org/browse/WFLY-3100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13027644#comment-13027644 ] 

RH Bugzilla Integration commented on WFLY-3100:
-----------------------------------------------

Radim Hatlapatka <rhatlapa at redhat.com> changed the Status of [bug 1075353|https://bugzilla.redhat.com/show_bug.cgi?id=1075353] from ON_QA to ASSIGNED

> ClassCastException in JSPs where spring-web tags and jstl tags are used
> -----------------------------------------------------------------------
>
>                 Key: WFLY-3100
>                 URL: https://issues.jboss.org/browse/WFLY-3100
>             Project: WildFly
>          Issue Type: Bug
>          Components: EE, Web (Undertow)
>    Affects Versions: 8.0.0.Final
>            Reporter: abhishek vijra
>            Assignee: Shelly McGowan
>              Labels: jsp, jstl
>             Fix For: 8.1.0.CR1, 8.1.0.Final
>
>         Attachments: spring-fun.war
>
>
> Following JSP with spring tags 
> <%@ page contentType="text/html;charset=UTF-8" language="java" %>
> <%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
> <%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
> <html>
>   <head><title>Simple jsp page</title></head>
>   <body>
>   
>   <c:set var="hasError" value="${param.hasError}" />
>   <c:set var="msg" value="${param.msg}" />
>   
>   <c:if test="${param.hasError=='true'}">
>     Message: <spring:message text="${param.msg}"/>
>   </c:if>
>   
>   </body>
> </html>
> breaks following error 
>  ERROR [org.springframework.web.servlet.tags.MessageTag] (default task-1) org.apache.taglibs.standard.lang.jstl.ImplicitObjects cannot be cast to javax.servlet.jsp.el.ImplicitObjectELResolver$ImplicitObjects: java.lang.ClassCastException: org.apache.taglibs.standard.lang.jstl.ImplicitObjects cannot be cast to javax.servlet.jsp.el.ImplicitObjectELResolver$ImplicitObjects
> 	at javax.servlet.jsp.el.ImplicitObjectELResolver$ImplicitObjects.getImplicitObjects(ImplicitObjectELResolver.java:608) [jboss-jsp-api_2.3_spec-1.0.0.Final.jar:1.0.0.Final]
> 	at javax.servlet.jsp.el.ImplicitObjectELResolver.getValue(ImplicitObjectELResolver.java:169) [jboss-jsp-api_2.3_spec-1.0.0.Final.jar:1.0.0.Final]
> 	at org.apache.jasper.el.JasperELResolver.getValue(JasperELResolver.java:95) [jastow-1.0.0.Final.jar:1.0.0.Final]
> 	at org.apache.jasper.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:32) [jastow-1.0.0.Final.jar:1.0.0.Final]
> 	at org.apache.jasper.el.ELResolverImpl.getValue(ELResolverImpl.java:78) [jastow-1.0.0.Final.jar:1.0.0.Final]
> 	at com.sun.el.parser.AstIdentifier.getValue(AstIdentifier.java:116) [javax.el-3.0.0.jar:3.0.0]
> 	at com.sun.el.parser.AstValue.getBase(AstValue.java:151) [javax.el-3.0.0.jar:3.0.0]
> 	at com.sun.el.parser.AstValue.getValue(AstValue.java:200) [javax.el-3.0.0.jar:3.0.0]
> There are two jars (jboss-jsp-api_2.3_spec-1.0.0.Final.jar and jboss-jstl-api_1.2_spec-1.0.4.Final.jar) that are incompatible with each other due to a bug -- both are storing an object in the same place, but the objects are not compatible.
> The result is that a jsp page cannot contain both JSTL and Spring tags, or it will get that error.


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