String () { Optional<String> holder = Optional.empty(); if (<warning descr="Condition '! holder.isPresent()' is always 'true'">! holder.isPresent()</warning>) { holder = Optional.of("hello world"); if (<warning descr="Condition '!holder.isPresent()' is always 'false'">!holder.isPresent()</warning>) { return null; } } return holder.get(); }