I have the following structure:

public class StringFactory {
    @Inject
    private Instance<StringFormatter> formatterInstances;

    @PostConstruct
    public void init() {
        for (AddressFormatter formatter : formatterInstances) {
            System.out.println("String formater: " + formatter);
        }
    }
 }

StringFormatter

interface StringFormatter {

    String createFormattedString(final String x);
}

StringFormaterForKR

public class StringFormaterForKR implements StringFormatter {

    @Override
    public String createFormattedString(String x) {
        return null;
    }

DefaultStringFormater

public class DefaultStringFormater implements StringFormatter {

    @Override
    public String createFormattedString(String x) {
        return null;
    }

Test

public class Test() {
    public static void main(String args[]) {
      StringFactory factory = new StringFactory(); 
    }     
}

I don't understand why formatterInstances is null ? And I saw that the message from PostConstruct is never printed...

Do you have any explication for this ?