/guava/android/guava/src/com/google/common/collect/Synchronized.java
} return delegate( ).peekFirst( ) ;
return delegate ( ) .peekFirst ( ) ; }
} } @Override @CheckForNull public E peekFirst() { synchronized (mutex) { <extra_id_0> } @Override @CheckForNull public E peekLast() { synchronized (mutex) { return delegate().peekLast();