if (oids==null) {
synchronized (getClass()) {
if (oids == null && !Boolean.getBoolean(NO_DB_INIT)) {
//Initialisation the database
logger.log(BasicLevel.INFO, "\tPreparing test...");
new POBuilder(getName()).testCreationOfPersistentObject();
//db initialized without oids
oids = new Object[0];
logger.log(BasicLevel.INFO, "\tTest Prepared.");