Unable to register MBean org.mongodb.driver

My deploy environment:tomcat6+centos+java driver 2.12.1

there are 2 war files under tomcat/webapps,and two application connect mongodb,but on tomcat7 it's fine.google a lot,but not get some useful results,any idea? thanks

when i start tomcat,get errors from log:

Oct 30, 2014 10:30:19 PM com.mongodb.util.management.jmx.JMXMBeanServer unregisterMBean

WARNING: Unable to register MBean org.mongodb.driver:type=ConnectionPool,clusterId=1,host=192.168.99.110,port=27017

javax.management.InstanceNotFoundException: org.mongodb.driver:type=ConnectionPool,clusterId=1,host=192.168.99.110,port=27017

at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1095)

at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(DefaultMBeanServerInterceptor.java:427)

at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(DefaultMBeanServerInterceptor.java:415)

at com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(JmxMBeanServer.java:546)

at com.mongodb.util.management.jmx.JMXMBeanServer.unregisterMBean(JMXMBeanServer.java:52)

at com.mongodb.JMXConnectionPoolListener.connectionPoolClosed(JMXConnectionPoolListener.java:68)

at com.mongodb.PooledConnectionProvider.close(PooledConnectionProvider.java:107)

at com.mongodb.DefaultServer.close(DefaultServer.java:99)

at com.mongodb.SingleServerCluster.close(SingleServerCluster.java:90)

at com.mongodb.DBTCPConnector.close(DBTCPConnector.java:603)

at com.mongodb.Mongo.close(Mongo.java:507)

at org.springframework.data.mongodb.core.MongoFactoryBean.destroy(MongoFactoryBean.java:190)

at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:238)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:510)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:486)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:740)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:521)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:486)

at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:740)

at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:455)

at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1090)

at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:1064)

at org.springframework.context.support.AbstractApplicationContext.close(AbstractApplicationContext.java:1010)

at org.springframework.web.context.ContextLoader.closeWebApplicationContext(ContextLoader.java:559)

at org.springframework.web.context.ContextLoaderListener.contextDestroyed(ContextLoaderListener.java:143)

at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:4249)

at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4890)

at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:924)

at org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1319)

at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1290)

at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:323)

at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142)

at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1086)

at org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)

at org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:448)

at org.apache.catalina.core.StandardService.stop(StandardService.java:584)

at org.apache.catalina.core.StandardServer.stop(StandardServer.java:744)

at org.apache.catalina.startup.Catalina.stop(Catalina.java:643)

at org.apache.catalina.startup.Catalina.start(Catalina.java:618)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)

at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

From mongodb jira,get this issue:

https://jira.mongodb.org/browse/JAVA-1117

but it seems that did not fix the issue?