final Object passwordValue = passwordExpression.getValue(elContext);
if (passwordValue == null) {
context.setError("Error verifying user", "Password is null");
return;
}
final Object id = identitySession.verify(userNameValue.toString(), passwordValue.toString());
if (id == null) {
context.setError("Invalid user name or password");
return;
}
if (userIdTargetExpression != null) {