/guava/guava/src/com/google/common/collect/Iterators.java
while ( iterator.hasNext ( ) ) { if ( element.equals ( iterator.next ( ) ) ) { return true;
while (iterator.hasNext()) { if (iterator.next() == null) { return true; } } } else { <extra_id_0> } } } return false; } @CanIgnoreReturnValue