in src/main/java/org/apache/commons/dbutils/AsyncQueryRunner.java [199:214]
public Integer call() throws SQLException {
int rows = 0;
try {
rows = ps.executeUpdate();
} catch (final SQLException e) {
rethrow(e, sql, params);
} finally {
close(ps);
if (closeConn) {
close(conn);
}
}
return Integer.valueOf(rows);
}