c3p0 error - A checked-out resource is overdue

[AnishaTiczon]

I am trying to maintain an existing application and seeing some errors in the log file. Not sure what do these mean, Please suggest what could be causing this?

INFO - sun-appserver9.1|javax.enterprise.system.stream.out|_T hreadID=20;_ThreadName=Timer-9;|
INFO - Allocating session for http://www.fromdev.com, opening...
INFO - Preparing Firefox profile...
INFO BasicResourcePool :1392 A checked-out resource is overdue, and will be destroyed: com.mchange.v2.c3p0.impl.NewPooledConnection@1ee23 c7
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[#|2010-11-05T02:21:04.623-0700|INFO|sun-appserver9.1|javax.enterprise.system.stream.out|_T hreadID=20;_ThreadName=Timer-9;|02:21:04,623 INFO BasicResourcePool :1395 Logging the stack trace by which the overdue resource was checked-out.
java.lang.Exception: DEBUG ONLY: Overdue resource check-out stack trace.
at com.mchange.v2.resourcepool.BasicResourcePool.chec koutResource(BasicResourcePool.java:506)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool. checkoutPooledConnection(C3P0PooledConnectionPool. java:525)
at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSou rce.getConnection(AbstractPoolBackedDataSource.jav a:128)
at org.springframework.orm.hibernate3.LocalDataSource ConnectionProvider.getConnection(LocalDataSourceCo nnectionProvider.java:82)
at org.hibernate.jdbc.ConnectionManager.openConnectio n(ConnectionManager.java:446)
at org.hibernate.jdbc.ConnectionManager.getConnection (ConnectionManager.java:167)
at org.hibernate.jdbc.AbstractBatcher.prepareQuerySta tement(AbstractBatcher.java:161)
at org.hibernate.loader.Loader.prepareQueryStatement( Loader.java:1700)
at org.hibernate.loader.Loader.doQuery(Loader.java:80 1)
at org.hibernate.loader.Loader.doQueryAndInitializeNo nLazyCollections(Loader.java:274)
at org.hibernate.loader.Loader.doList(Loader.java:253 3)
at org.hibernate.loader.Loader.listIgnoreQueryCache(L oader.java:2276)
at org.hibernate.loader.Loader.list(Loader.java:2271)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoa der.java:452)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(Que ryTranslatorImpl.java:363)
at org.hibernate.engine.query.HQLQueryPlan.performLis t(HQLQueryPlan.java:196)
at org.hibernate.impl.SessionImpl.list(SessionImpl.ja va:1268)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:1 02)
at com.fromdev.alerts.AlertJob.execute(AlertJob.java: 51)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.util.MethodInvoker.invoke(Meth odInvoker.java:276)
at org.springframework.scheduling.quartz.MethodInvoki ngJobDetailFactoryBean$MethodInvokingJob.executeIn ternal(MethodInvokingJobDetailFactoryBean.java:260 )
at org.springframework.scheduling.quartz.QuartzJobBea n.execute(QuartzJobBean.java:86)
at org.quartz.core.JobRunShell.run(JobRunShell.java:2 03)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run (SimpleThreadPool.java:520)
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