/guava/guava/src/com/google/common/collect/Synchronized.java
} }delegate( ).addFirst( e) ;
delegate ( ) .addFirst ( e ) ; } }
Deque<E> delegate() { return (Deque<E>) super.delegate(); } @Override public void addFirst(E e) { synchronized (mutex) { <extra_id_0> @Override public void addLast(E e) { synchronized (mutex) { delegate().addLast(e); } }