Persistence is one of the greatest challenges for building applications. There are many options for building persistence layers. Data Access Objects (DAO) is a popular design pattern for building the ...
But any "locking or concurrency issue" that made it to the database would have thrown an SQLException. So either there is a SQLException that is being lost somehow, or the issue is before the JDBC ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results