* @param usecon connection to be used
*/
private void storeAndLoadCon(Connection useCon) throws Exception {
JDBCPersistentMap storeMap = new JDBCPersistentMap(null, "Danet");
storeMap.setConnection(useCon);
assertTrue(storeMap.maxKeyLength() == 50);
assertTrue(!storeMap.isModified());
storeMap.put("HSc", "Holger Schl�ter");
assertTrue(storeMap.isModified());
storeMap.put("MSc", "Matthias Schirm");
storeMap.put("ML", "Dr. Michael Lipp");