E.g.:

@Bar
class Foo {
}

class Locator {
 Foo lookupFoo() {
  return CDI.current().select(Foo.class, BarLiteral.INSTANCE).get();
 }
}

The lookupFoo() method results in UnsatisfiedResolutionException because of the underlying Instance has three qualifiers: @Default, @Any, @Bar.

See also org.jboss.weld.manager.BeanManagerImpl.InstanceInjectionPoint.