import com.google.common.collect.Iterables; import com.google.common.base.Predicate; import java.lang.Iterable; import java.util.HashMap; import java.util.Collections; import java.util.ArrayList; import java.util.stream.Collectors; class c { void m() { Iterable<HashMap> l = Collections.<HashMap>emptyList().stream().filter(op -> false).collect(Collectors.toList()); } }