Connection.getAutoCommit() unsupported？？？

hibernate2.16+dao+csv类型的数据库（就是以文件作为表的那种）
连接数据库的时候正常连接，但是在读取数据时出现错误：
如运行如下代码：
OrgChart orgChart = new OrgChart();
......
try
{
.... = orgChart.retreiveCompanies();//here the error occurs
}
.....
错误如下：
java.lang.UnsupportedOperationException: Connection.getAutoCommit() unsupported
at org.relique.jdbc.csv.CsvConnection.getAutoCommit(Unknown Source)
at net.sf.hibernate.connection.DriverManagerConnectionProvider.getConnection

(DriverManagerConnectionProvider.java:103)
at net.sf.hibernate.impl.BatcherImpl.openConnection(BatcherImpl.java:286)
at net.sf.hibernate.impl.SessionImpl.connect(SessionImpl.java:3326)
at net.sf.hibernate.impl.SessionImpl.connection(SessionImpl.java:3286)
at net.sf.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:40)
at net.sf.hibernate.transaction.JDBCTransactionFactory.beginTransaction

(JDBCTransactionFactory.java:19)
at net.sf.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:2231)
at common.util.ThreadedSession.put(ThreadedSession.java:56)
at common.hibernate.base._RootDAO.createSession(_RootDAO.java:198)
at common.hibernate.base._RootDAO.createSession(_RootDAO.java:189)
at common.hibernate.base._BaseRootDAO.getSession(_BaseRootDAO.java:114)
at common.hibernate.base._BaseRootDAO.find(_BaseRootDAO.java:197)
at organization.dao.OrgChartDAO.retrieveCompanies(OrgChartDAO.java:321)
at common.hibernate.test.OrgChartDAOTest.testRetrieveCompanies(OrgChartDAOTest.java:384)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
...................

百思不得其解，望高手指点！（这个问题已经折腾我两个星期了!!),先谢了！