Add Layer in OracleSpatialWizardPage throws exception on connect

OracleSpatialWizardPage needs to set username/pw like (around line 283):

(...)
params.put(OracleNGDataStoreFactory.HOST.key, hostText);
params.put(OracleNGDataStoreFactory.PORT.key,
(Integer) OracleNGDataStoreFactory.PORT.parse(portText));
params.put(OracleNGDataStoreFactory.DATABASE.key, db);

// This is missing
params.put(OracleNGDataStoreFactory.USER.key, userText);
params.put(OracleNGDataStoreFactory.PASSWD.key, passText);