[DBCP] Without given validationQuery, no validation if setTestOnBorrow set true

If you do not give the query in validationQuery properties, validation(test) is not applied your application,

because dbcp code check the validationQuery.

Unconditionally TestOnBorrow, TestOnReturn in given properties also false.

package org.apache.commons.dbcp;

public class BasicDataSource implements DataSource {

// Can't test without a validationQuery

if (validationQuery == null) {

setTestOnBorrow(false);

setTestOnReturn(false);

setTestWhileIdle(false);

}