Microsoft Access - error when performing updates

Question

Hi,
I am creating a Java application that edits databases using a GUI. I am having problems when it comes to editing Access Databases. Every so often, when the user tries to perform an update like add an attribute the database throws the following exception...
java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] The database engine could not lock table 'Books' because it is already in use by another person or process.
This exception does not make sense since i DO NOT HAVE ANY OTHER APPS OPEN USING THIS DATABASE. Also it allows me to make some changes before throwing this exception.
I dont get this problem when editing Postgres Databases.
I am using the ODBC:JDBC drivers for connection to the access database. Could it be a problem with this driver.....
(I posted this topic on JDBC forum but go no response...hoping for better luck here)
Wide :)

Answer 1

Couple of ideas......
1) are you releasing your connections, statements and resultsets after use ? Best to wrap your code in at least a try - finally block.
In finnally call resultSet.close(), statement.close() and connection.close() when you're finished. Maybe your db connections aren't being released.
2) if autocommit was off, then previous uncommitted statements might conflict/lock the table ?
regards,
Owen