Multiple applications having c3p0 configuration gives warning

Hi

I have two web application under one tomcat. Both are using hibernate 3.2.1 and c3p0 0.9.1.2. While the second application gets deployed, I always get the following warning message.

Tomcat: apache-tomcat-6.0.28

WARN 2010-11-06 19:04:37,270 A C3P0Registry mbean is already registered. This probably means that an application using c3p0 was undeployed, but not all PooledDataSour开发者_高级运维ces were closed prior to undeployment. This may lead to resource leaks over time. Please take care to close all PooledDataSources.

Please help in this regard.

Thanks in advance

Goura

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To avoid the C3P0Registry from being loaded and registered multiple times (when deploying multiple webapps, when reloading a given webapp), my recommendation would be to move the C3P0 JAR (and the JDBC driver) from the Webapp classloader (WebappX/WEB-INF/lib) to the Common classloader ($TOMCAT_HOME/lib).

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If you dont want c3p0 exposed through JMX then you could do:

com.mchange.v2.c3p0.management.ManagementCoordinator=com.mchange.v2.c3p0.management.NullManagementCoordinator