DBCP Object not closed?

[Vamsee Kanakala]

Hello,
      I am using iBATIS through Tomcat DBCP for connection pooling. 
But, I have this error when I'm trying to do some inserts through my 
application:

DBCP object created 2005-02-04 16:19:47 by the following code was never 
closed:
java.lang.Exception
       at 
org.apache.commons.dbcp.AbandonedTrace.setStackTrace(AbandonedTrace.j        
ava:157)
               at 
org.apache.commons.dbcp.AbandonedObjectPool.borrowObject(AbandonedObj
               ectPool.java:76)
                       at 
org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSo
                       urce.java:95)
                               at 
org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource
                               .java:540)
                                       at 
com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.init(JdbcTr
                                       ansaction.java:45)
                                               at 
com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.getConnecti
                                               on(JdbcTransaction.java:78)
                                                       at 
com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeUp
                                                       
date(GeneralStatement.java:73)

And, tomcat is stalling after a few inserts and updates. A bit of 
googling told me that I have to close my connection objects so that they 
return to the pool, but how do I do this in iBATIS?

TIA,
Vamsee.