Applications using the TRANSACTION_SERIALIZABLE isolation level with the bundled Sun driver for Microsoft SQL Server may hang when using a prepared statement to update if two parallel transactions are running and one of them is rolled back. (ID 6165970)

To set a desired isolation level for a connection, the corresponding connection pool must be created at that same isolation level. See the Sun Java System Application Server Enterprise Edition 8.2 Administration Guide for details about configuring connection pools.