Tomcat / Spring MVC / Tiles 2.2.2 InsertAttributeTag Jasper Exception Being Thrown

**a430734** · Oct 17th, 2012, 03:53 PM

In an attempt to migrate a Spring/Tiles 2.2.2 EE Application from was 7 to apache-tomcat-6.0.35 I am seeing exceptions in my presentation layer, pertaining to jasper and the rendering of my tiles.

Here is an exception...

Code:

SEVERE: Servlet.service() for servlet spring-controller threw exception
org.apache.jasper.JasperException: /WEB-INF/jsp/tilestest/parent.jsp(16,3) The TLD for the class org.apache.tiles.jsp.taglib.InsertAttributeTag specifies an invalid body-content (JSP) for a SimpleTag.
	at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
	at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
	at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
	at org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:791)

In an attempt to better understand the issue, I've simplified an example in my codebase, and I will present the code/wiring here.

web.xml

Code:

	
<servlet-mapping>
	<servlet-name>spring-controller</servlet-name>
	<url-pattern>/tilestest/home</url-pattern>
</servlet-mapping>

TilesTestController.java

Code:

package com;

import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class TilesTestController {
	private static final String TILESTEST = "tilestest/home";

	@RequestMapping(value = TILESTEST, method = RequestMethod.GET)
	public String home(ModelMap model) {
		return TILESTEST;
	}
}

tilestest.properties

Code:

tilestest/home.(class)=org.springframework.web.servlet.view.tiles2.TilesView
tilestest/home.url=tilestest/home

layouts.xml

Code:

<!DOCTYPE tiles-definitions PUBLIC
	"-//Apache Software Foundation//DTD Tiles Configuration 2.0//EN"
	"http://tiles.apache.org/dtds/tiles-config_2_0.dtd">

<tiles-definitions>
	
	<definition name="tilestestParent-layout" template="/WEB-INF/jsp/tilestest/parent.jsp" />
	
	<definition name="tilestest/home" extends="tilestestParent-layout">
		<put-attribute name="title" value="Tiles Test" />
		<put-attribute name="body" value="/WEB-INF/jsp/tilestest/home.jsp" />
	</definition>	
	
</tiles-definitions>

parent.jsp

Code:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1" %>
<%@ taglib prefix="tiles" uri="http://tiles.apache.org/tags-tiles" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
	<head>
		<title>
			<tiles:getAsString name="title" />
		</title>
	</head>
	<body>	
			Tiles Test Parent...
			<tiles:insertAttribute name="body" />
	</body>
</html>

home.jsp

Code:

tilestest home body here...

views.xml

Code:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
			http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">

	<bean id="tilesConfigurer"
		class="org.springframework.web.servlet.view.tiles2.TilesConfigurer">
		<property name="definitions">
			<list>
				<value>/WEB-INF/jsp/tilestest/layouts.xml</value>
			</list>
		</property>
		<property name="preparerFactoryClass"
			value="org.springframework.web.servlet.view.tiles2.SpringBeanPreparerFactory" />
	</bean>
	<bean id="resouceBundleViewResolver"
		class="org.springframework.web.servlet.view.ResourceBundleViewResolver">
		<property name="basenames">
			<list>
				<value>properties/views/tilestest</value>
			</list>
		</property>
	</bean>
</beans>

/app is the context root of my app

If I hit http://localhost:8080/app/tilestest/home I hit my TilesTestController home method successfully, but then fail with the exception above during processing of the <tiles:insertAttribute name="body" /> within parent.jsp

If I remove <tiles:insertAttribute name="body" /> the parent.jsp renders successfully.

There seems to be an issue/conflct with Jasper/Tiles/Tomcat? I have tried debugging the doTag() method of InsertAttribute but my breakpoint never gets hit.

All of this works on was 7.0

Any thoughts/ideas would be greatly beneficial and very much appreciated.

Thanks!

**a430734** · Oct 18th, 2012, 05:33 PM

This thread can be closed.

I've found that in our existing application there were Tiles TLD overrides, several actually, one of which is an override for the insertAttribute tag. This tag override contains a <body-content>JSP</body-content> which according to the JSP spec, is not even valid.

Jasper must be failing whereas WAS must not care. I removed the override and everything works as expected.

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