帮忙解决下配置spring2.0+hiberate 3.1后启动Tomcat5.5 报错误

Question

配置spring2.0 + hiberate 3.1后启动Tomcat5.5 报以下错误:09-01-15 11:16:21  INFO DefaultListableBeanFactory:285 - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@1dad8eb: defining beans [DataSource,SessionFactory,UsersRoleDAO,UsersDAO,RoleDAO]; root of factory hierarchy
    09-01-15 11:16:21 ERROR ContextLoader:203 - Context initialization failed
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'SessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)V
Caused by: 
java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)V
at net.sf.cglib.core.ClassEmitter.begin_class(ClassEmitter.java:77)
at net.sf.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:173)
at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
其中applicationContext.xml配置文件里为<?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-2.0.xsd">
<bean id="DataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName"
value="com.microsoft.jdbc.sqlserver.SQLServerDriver">
</property>
<property name="url"
value="jdbc:microsoft:sqlserver://localhost:1433;databasename=xmlok">
</property>
<property name="username" value="sa"></property>
<property name="password" value="sa"></property>
</bean>
<bean id="SessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="DataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.SQLServerDialect
</prop>
</props>
</property>
<property name="mappingResources">
<list>
<value>cn/xmlok/data/UsersRole.hbm.xml</value>
<value>cn/xmlok/data/Users.hbm.xml</value>
<value>cn/xmlok/data/Role.hbm.xml</value></list>
</property></bean>
<bean id="UsersRoleDAO" class="cn.xmlok.data.UsersRoleDAO">
<property name="sessionFactory">
<ref bean="SessionFactory" />
</property>
</bean>
<bean id="UsersDAO" class="cn.xmlok.data.UsersDAO">
<property name="sessionFactory">
<ref bean="SessionFactory" />
</property>
</bean>
<bean id="RoleDAO" class="cn.xmlok.data.RoleDAO">
<property name="sessionFactory">
<ref bean="SessionFactory" />
</property>
</bean>

</beans>