华为信息机与c3po包的冲突

公冶格格

情况描述： 在项目中使用c3po 作为数据库的连接池的管理，版本为：c3p0-0.9.1.jar，由于项目需要用到信息机，故往项目的lib中加入了华为信息机的api包（EIESmProxyApi.jar），启动项目后出现了如下的异常信息：
     Caused by:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Instantiation of bean failed; nested exception is java.lang.VerifyError: (class: com/mchange/v2/log/log4j/Log4jMLog$Log4jMLogger, method: isLoggable signature: (Lcom/mchange/v2/log/MLevel;)Z) Incompatible argument to function
Caused by:
java.lang.VerifyError: (class: com/mchange/v2/log/log4j/Log4jMLog$Log4jMLogger, method: isLoggable signature: (Lcom/mchange/v2/log/MLevel;)Z) Incompatible argument to function
at com.mchange.v2.log.log4j.Log4jMLog.getMLogger(Log4jMLog.java:52)
at com.mchange.v2.log.MLog.getLogger(MLog.java:145)
at com.mchange.v2.log.MLog.<clinit>(MLog.java:72)
at com.mchange.v2.naming.JavaBeanReferenceMaker.<clinit>(JavaBeanReferenceMaker.java:39)
at com.mchange.v2.c3p0.impl.PoolBackedDataSourceBase.<clinit>(PoolBackedDataSourceBase.java:203)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:85)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:61)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:752)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:717)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:386)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:249)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:155)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:246)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:267)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:110)

     环境描述： tomcat 6.0.18
              jdk  1.5以上
                 
     异常信息显示，c3po包中的log4j出现版本不兼容，将c3po包的版本改为c3p0-0.8.5.2.jar，重启后一切正常。
      具体在哪个地方出现不兼容，不得而知，在此留下记录，以备查询。