question: public void testSetNull ( ) throws Exception { PreparedStatement stmt = connection . prepareStatement ( "INSERT INTO test_blob(id, bin_data) VALUES(?, ?)" ) ; try { stmt . setInt ( 1 , 1 ) ; stmt . setBytes ( 2 , null ) ; stmt . executeUpdate ( ) ; stmt . setInt ( 1 , 2 ) ; stmt . setBinaryStream ( 2 , null , 0 ) ; stmt . executeUpdate ( ) ; stmt . setInt ( 1 , 3 ) ; stmt . setString ( 2 , null ) ; stmt . executeUpdate ( ) ; } finally { stmt . close ( ) ; } }
target:  This method checks if we correctly handle assigning null values to blobs.