Unable to load bytecode

I got some problem in my WSF/Spring

I followed tutorial and setted my applicationContext

But I got a "Unable to load bytecode for class" exception

who can tell me how to fix it?

Exception is:

org.apache.axis2.deployment.DeploymentException:

The following error occurred during schema generation:

Unable to load bytecode for class

    com.softleader.wstest.ws.EchoWS$$EnhancerByCGLIB$$c67cae4b

        at org.wso2.spring.ws.axis2.SpringWebServiceBuilder.populateService(SpringWebServiceBuilder.java:194)
        at org.wso2.spring.ws.servlet.SpringAxis2Servlet.init(SpringAxis2Servlet.java:85)

       .....

And my applicationContext setting is:

    <!-- Import WSO2 config -->
    <import resource="classpath:axis2Config.xml"/>

    <!-- Import DAO Configuration -->
    <import resource="classpath:daoContext.xml"/>

    <!-- WSO2 WebService Bean Configuration -->
    <bean id="services" class="org.wso2.spring.ws.WebServices">
        <property name="services">
            <list>
                <bean id="echoService" class="org.wso2.spring.ws.SpringWebService">
                    <property name="serviceBean" ref="echoWS"></property>
                    <property name="serviceName" value="EchoService"></property>
                </bean>
                <bean id="userService" class="org.wso2.spring.ws.SpringWebService">
                    <property name="serviceBean" ref="userWS"></property>
                    <property name="serviceName" value="UserService"></property>
                </bean>
            </list>
        </property>
    </bean>

    <!-- Endpoint Definition -->
    <bean id="echoWS" class="com.softleader.wstest.ws.EchoWS">
        <property name="service" ref="echoBO" />
    </bean>

    <bean id="userWS" class="com.softleader.wstest.ws.UserWS">
        <property name="service" ref="userBO" />
    </bean>

    <!-- Service Definition -->
    <bean id="echoBO" class="com.softleader.wstest.service.impl.EchoServiceImpl" />

    <bean id="userBO" class="com.softleader.wstest.service.impl.UserServiceImpl">
        <property name="dao" ref="userDAO" />
    </bean>

web.xml setting:

    <!-- Spring Context Settings -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/classes/applicationContext.xml</param-value>
    </context-param>
   
    <display-name>Apache-Axis2</display-name>

    <servlet>
        <servlet-name>axis2</servlet-name>
        <servlet-class>
            org.wso2.spring.ws.servlet.SpringAxis2Servlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>axis2</servlet-name>
        <url-pattern>/axis2/*</url-pattern>
    </servlet-mapping>

    <servlet-mapping>
        <servlet-name>axis2</servlet-name>
        <url-pattern>/services/*</url-pattern>
    </servlet-mapping>