[Help]Maven

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I have problem, when i compile (with maven ofc) i have Warnings. And when coompile is finish, i open log and i see this in java:

 

2009.02.24 22:25:03,968 INFO main com.mchange.v2.log.MLog MLog clients using log4j logging.  
2009.02.24 22:25:04,625 INFO main com.mchange.v2.c3p0.C3P0Registry Initializing c3p0-0.9.1.2 [built 21-May-2007 15:04:56; debug? true; trace: 10]  
2009.02.24 22:25:04,781 INFO main com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ java.beans.IntrospectionException: java.lang.reflect.InvocationTargetException [numThreadsAwaitingCheckoutDefaultUser] ]