import com.google.common.collect.Iterables; import com.google.common.base.Predicate; import java.lang.String; import java.util.ArrayList; import java.util.List; import java.util.Collections; import java.util.stream.Collectors; class c { void m() { List<String> l = new ArrayList<String>(); l.stream().filter((String.class)::isInstance).collect(Collectors.toList()); } }