Deleting Complex Object In Java List

I am following those three tutorials and I have completed it with success.

( [URL] .... )
( [URL] .... )
( [URL] .... )

But then, as author haven't implemented removeCountries method I tried to create it. What I did initially was to just add to class Countries this method:

public boolean removeCountry(Country country) {
return countries.remove(country);
}

But although compiler wasn't complaining it didn't work. Actually it worked last night (before reboot) but not today. Must be some SOAP iterator/binding thing or whatever. Or I thought that it worked but in fact it didn't.

Here are original classes:

//-------------------------------
public class Country {
String CountryId;
String CountryName;
public Country() {
super();

[Code] ....

I would like to avoid my own iterator as JDeveloper can generate automatically iterators for webservices, but if I can't get it that way, what would be better way to write above mentioned iterator in removeCountry method?

Is there any way to remove object directly with something like this:

co.countries.remove(o);
co.removeCountry(country)

using method

// This left unused
public boolean removeCountry(Country country) {
return countries.remove(country);
}

from class Countries?

Parameters should be set by web service iterator.