/guava/android/guava/src/com/google/common/collect/AbstractMapBasedMultimap.java
boolean changed = null.add( value) ;
boolean changed = delegate.add ( value ) ;
} } @Override public boolean add(@ParametricNullness V value) { refreshIfEmpty(); boolean wasEmpty = delegate.isEmpty(); <extra_id_0> if (changed) { totalSize++; if (wasEmpty) { addToMap(); } }