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From "zhouyong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (WW-4105) Struts2 raise java.lang.ClassCastException when Result type is chain
Date Thu, 13 Jun 2013 07:36:20 GMT

     [ https://issues.apache.org/jira/browse/WW-4105?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

zhouyong updated WW-4105:
-------------------------

    Attachment: test.zip

eclipse web application 
                
> Struts2 raise java.lang.ClassCastException  when Result type is chain
> ---------------------------------------------------------------------
>
>                 Key: WW-4105
>                 URL: https://issues.apache.org/jira/browse/WW-4105
>             Project: Struts 2
>          Issue Type: Bug
>          Components: Core Interceptors
>    Affects Versions: 2.3.14.3
>         Environment: tomcat6 struts2.3.*
>            Reporter: zhouyong
>             Fix For: 2.3.x
>
>         Attachments: test.zip
>
>
> java.lang.ClassCastException: A action cannot be cast to B action when A chain to B.
> ChainingInterceptor.java has a bug in intercept function when Result type is chain.
> Intercept function of ChainingInterceptor will change action member of DefaultActionInvocation
class. And invokeAction of DefaultActionInvocation will fail in line 450.
> My action class has a annotation. It is org.springframework.transaction.annotation.Transactional.
   Action work good if it has not org.springframework.transaction.annotation.Transactional
> AtestAction.java:
> {code:java}
> package demo.action;
> import org.apache.struts2.convention.annotation.Action;
> import org.apache.struts2.convention.annotation.ParentPackage;
> import org.apache.struts2.convention.annotation.Result;
> import org.apache.struts2.convention.annotation.Results;
> import org.springframework.context.annotation.Scope;
> import org.springframework.stereotype.Service;
> import org.springframework.transaction.annotation.Transactional;
> @Transactional
> @ParentPackage(value="swordlite")
> @Service("AtestAction")
> @Scope(value = "prototype")
> @Results( {
> @Result(name = "test", location = "testb", type = "chain",
> params = { 
> "defineId", "${_defineId}", 
> "rp", "${_resultPage}"}
> )
> })
> public class AtestAction {
> @Action(value = "/testa")
> public String run() throws Exception
> { return "test"; }
> }
> BtestAction.java:
> import org.apache.struts2.convention.annotation.Action;
> import org.apache.struts2.convention.annotation.ParentPackage;
> import org.apache.struts2.convention.annotation.Result;
> import org.apache.struts2.convention.annotation.Results;
> import org.springframework.context.annotation.Scope;
> import org.springframework.stereotype.Service;
> import org.springframework.transaction.annotation.Transactional;
> @Transactional
> @ParentPackage(value="swordlite")
> @Service("BtestAction")
> @Scope(value="prototype")
> @Results({
> @Result(name="ok", location="/ok.jsp", type="dispatcher"), 
> })
> public class BtestAction {
> @Action(value = "/testb")
> public String run() throws Exception
> { return "ok"; }
> }
> {code}
> request: http://localhost:8080/test/testa.action
> raise error: java.lang.ClassCastException: demo.action.AtestAction cannot be cast to
demo.action.BtestAction
> spring config file: applicationContext.xml
> {code:xml}
> <?xml version="1.0" encoding="UTF-8"?>
> <beans xmlns="http://www.springframework.org/schema/beans"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
> xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
> xmlns:util="http://www.springframework.org/schema/util" xmlns="http://www.springframework.org/schema/p"
> xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

> http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd

> http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd

> http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd

> http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd">
> <context:component-scan base-package="..action,.**.spring" />
> <context:annotation-config />
> <aop:aspectj-autoproxy proxy-target-class="true"/>
> <bean id="propertyConfigurer"
> class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
> <property name="locations">
> <list>
> <value>WEB-INF/config/db.properties</value>
> <value>WEB-INF/config/hibernate.properties</value>
> </list>
> </property>
> </bean>
> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
> destroy-method="close">
> <property name="driverClass" value="${database.working.driver}"></property>
> <property name="jdbcUrl" value="${database.working.url}"></property>
> <property name="user" value="${database.working.user}"></property>
> <property name="password" value="${database.working.password}"></property>
> <property name="maxPoolSize" value="${database.working.poolsize}"></property>
> <property name="minPoolSize" value="1"></property>
> <property name="initialPoolSize" value="1"></property>
> <property name="maxIdleTime" value="20"></property>
> </bean>
> <bean id="sessionFactory"
> class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
> <property name="dataSource" ref="dataSource" />
> <property name="packagesToScan">
> <list>
> <value>.*.model</value>
> </list>
> </property>
> <property name="hibernateProperties">
> <props>
> <prop key="hibernate.dialect">${hibernate.dialect}</prop>
> <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
> <prop key="hibernate.hbm2ddl.auto">none</prop>
> </props>
> </property>	
> </bean>
> <bean id="transactionManager"
> class="org.springframework.orm.hibernate3.HibernateTransactionManager">
> <property name="sessionFactory" ref="sessionFactory"></property>
> </bean>
> <tx:annotation-driven transaction-manager="transactionManager" />
> </beans>
> {code}
> struts config file: struts.xml
> {code:xml}
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE struts PUBLIC
> "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
> "http://struts.apache.org/dtds/struts-2.3.dtd">
> <struts>
> <!-- <constant name="struts.objectFactory" value="spring" /> -->
> <constant name="struts.objectFactory" value="org.apache.struts2.spring.StrutsSpringObjectFactory"
/>
> <constant name="struts.devMode" value="false" />
> <package name="swordlite" namespace="/" extends="struts-default">
> <global-results>
> <result name="myerror">/mrg/error.jsp</result>
> <result name="re2Editpage">/mrg/re2Editpage.jsp</result>
> </global-results>
> <global-exception-mappings>
> <exception-mapping result="re2Editpage" exception="org.hibernate.PropertyValueException"></exception-mapping>
> </global-exception-mappings>
> </package>
> </struts>
> {code}

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