weblogic的jar包冲突

异常：

Error creating bean with name 'sessionFactoryWrite' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: javax.persistence.OneToMany.orphanRemoval()Z
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessPropertyValues(CommonAnnotationBeanPostProcessor.java:306)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1122)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:461)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295)
Truncated. see log file for complete stacktrace

使用spring + hibernate ： 
本地tomcat下跑没有异常，UAT环境忽然出现如下以上异常，主要问题是：
java.lang.NoSuchMethodError: javax.persistence.OneToMany.orphanRemoval()Z 
出现这种异常通常是由于Myeclipse的javaee.jar 版本较低，与Hibernate等自带的JPA出现了冲突。
无法初始化hibernate，sessionfactory。
这显然是环境问题。

解决方案：

配置weblogic.xml，添加优先加载jar包：

<?xml version="1.0" encoding="UTF-8"?>
<weblogic-web-app>
    <container-descriptor>
        <!--<prefer-web-inf-classes>true</prefer-web-inf-classes> -->
        <prefer-application-packages>
            <package-name>org.apache.commons.lang.*</package-name>
            <package-name>antlr.*</package-name>
            <package-name>org.hibernate.*</package-name>
            <package-name>javax.persistence.*</package-name>
            <package-name>org.apache.cxf.*</package-name>
        </prefer-application-packages>
    </container-descriptor>
    <context-root>/</context-root>
    <session-descriptor>
        <persistent-store-type>replicated_if_clustered</persistent-store-type>
        <cookie-name>JSESSIONID-vehicle</cookie-name>
    </session-descriptor>
</weblogic-web-app>