Java Database Connectivity (JDBC)

Hello,

I'm using IBatis along with apache commons connection pool to connect to a postgre database server. The application that I'm working on has a number of threads working simultaneously. Most of the times, everything seems to be working fine but sometimes I get an error (given below). The root cause seems to be "Caused by: java.net.SocketException: Connection reset" but I cant figure out why this is happening. I tried disabling the firewall but that didnt help. I'm using Postgre Database server on Windows Vista. Can anyone please help me solve the problem? Please let me know if you need more information from my side. Thanks in advance.

org.apache.commons.dbcp.SQLNestedException: Error preloading the connection pool
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1238)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.init(JdbcTransaction.java:48)
at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:89)
at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForList(GeneralStatement.java:123)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:615)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:589)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:118)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:95)
at eu.digitania.dls.dao.ConnectionPointDAOImpl.selectByExample(ConnectionPointDAOImpl.java:64)
at eu.digitania.dls.routerbroker.RouterBrokerInitializer.initializeIncomingMessageConsumers(RouterBrokerInitializer.java:48)
at eu.digitania.dls.routerbroker.RouterBrokerInitializer.initialize(RouterBrokerInitializer.java:41)
at eu.digitania.dls.domain.SystemController.initialize(SystemController.java:31)
at eu.digitania.dls.test.TestRun.main(TestRun.java:24)
Caused by: org.postgresql.util.PSQLException: The connection attempt failed.
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:137)
at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:66)
at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:124)
at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:30)
at org.postgresql.jdbc3.Jdbc3Connection.<init>(Jdbc3Connection.java:24)
at org.postgresql.Driver.makeConnection(Driver.java:386)
at org.postgresql.Driver.connect(Driver.java:260)
at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
at org.apache.commons.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1276)
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1235)
... 13 more
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(SocketInputStream.java:168)
at org.postgresql.core.VisibleBufferedInputStream.readMore(VisibleBufferedInputStream.java:135)
at org.postgresql.core.VisibleBufferedInputStream.ensureBytes(VisibleBufferedInputStream.java:104)
at org.postgresql.core.VisibleBufferedInputStream.read(VisibleBufferedInputStream.java:73)
at org.postgresql.core.PGStream.ReceiveChar(PGStream.java:259)
at org.postgresql.core.v3.ConnectionFactoryImpl.doAuthentication(ConnectionFactoryImpl.java:254)
at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:95)
... 23 more