[Question] Default parameter values not allowed in overriding method signature

[EotT123]

It seems that default parameter values cannot be specified in the signature of an overriding method, even though they are allowed in the original interface or superclass. This raises the question of whether there is a technical limitation preventing this behavior, or if it’s just not implemented due to complexity.

public interface FooIntf {
	String test(String foo="foo", String bar);
}

public class Foo implements FooIntf {
	@Override
	public String test(String foo, String bar) { // --> default values cannot be used here
		return foo + bar;
	}
}

Since a class containing the parameters is already generated for the FooIntf interface, would it be feasible to generate a similar class for the Foo class, which extends the first one and includes the default values?