/guava/android/guava/src/com/google/common/collect/Sets.java
E e = itr2.next( ) ;E elem2 = itr2.next( ) ;
E elem2 = itr2.next ( ) ;
E elem1 = itr1.next(); if (!set2.contains(elem1)) { return elem1; } } while (itr2.hasNext()) { <extra_id_0> if (!set1.contains(elem2)) { return elem2; } } return endOfData(); }