@Override
        public void beforeCompletion() {
            TRANSACTIONAL_HANDLES.remove(handle);
            TransactionSynchronizationManager.unbindResource(db);
            handle.close();
        }
Close a handle if it is not transactionally bound, otherwise no-op
@param handle the handle to consider closing
spring5/src/main/java/org/jdbi/v3/spring5/JdbiUtil.java