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  1. WildFly
  2. WFLY-3100

ClassCastException in JSPs where spring-web tags and jstl tags are used

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      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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          relates to

          Bug - A problem that impairs or prevents the functions of the product. JBEE-152 Release JSP 2.3 APIs

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Resolved

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              smcgowan@redhat.com Shelly McGowan (Inactive)
              avijra_jira abhishek vijra (Inactive)
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                Updated:
                Resolved: