How to Correctly Close Resources

Question

As I was cleaning up some code, FindBugs pointed me to a bit of JDBC code that uses Connection, CallableStatement, and ResultSet objects. Here\'s a snippet from that code:

Answer 1

You only have to close the Connection.

try
{
    cStmt.close();
}
catch(Exception e)
{
    /* Intentionally Swallow Exception */
} 

From docs.oracle.com:

A Statement object is automatically closed when it is garbage collected. When a Statement object is closed, its current ResultSet object, if one exists, is also closed.

Calling close() on a Connection releases its database and JDBC resources.