Cannot find class [org.springmodules.validation.bean.conf.loader.annotation.AnnotationBeanValidation

[albert kao]

I want to use Spring Modules 0.9 and followed the article http://wheelersoftware.com/articles/spring-bean-validation-framework.html.
I use Eclipse, New Project, Plug-in Development, Plug-in from Existing JAR Archives, an OSGi framework (Equinox), unselect "Unzip the JAR archives into the project" to create a new Plug-in SpringJar for the spring-modules-validation.jar.
Then I modify the Java Build Path of another project to use the spring-modules-validation.jar.
Please help to solve the following error.
servlet.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:osgi="http://www.springframework.org/schema/osgi"
       xmlns:amq="http://activemq.apache.org/schema/core"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:p="http://www.springframework.org/schema/p"
       xsi:schemaLocation="http://www.springframework.org/schema/beans 
                           http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://www.springframework.org/schema/osgi 
                           http://www.springframework.org/schema/osgi/spring-osgi.xsd
                           http://www.springframework.org/schema/context
                           http://www.springframework.org/schema/context/spring-context-2.5.xsd">
	
	<!-- Enable annotation-based validation using Bean Validation Framework -->
	<!-- Using these instead of vld namespace to prevent Eclipse from complaining -->
	<bean id="configurationLoader"
		class="org.springmodules.validation.bean.conf.loader.annotation.AnnotationBeanValidationConfigurationLoader"/>
	<bean id="validator" class="org.springmodules.validation.bean.BeanValidator"
		p:configurationLoader-ref="configurationLoader"/>

Error appear on the Eclipse console:
12:15:55,984 ERROR org.springframework.osgi.web.context.support.OsgiBundleXmlWebApplicationContext:152 - Refresh error
org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.springmodules.validation.bean.conf.loader.annotation.AnnotationBeanValidationConfigurationLoader] for bean with name 'configurationLoader' defined in URL [bundleentry://8.fwk13665843/WEB-INF/App-servlet.xml]; nested exception is java.lang.ClassNotFoundException: org.springmodules.validation.bean.conf.loader.annotation.AnnotationBeanValidationConfigurationLoader not found from bundle [com.comp.hw.war]
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1141)