/guava/guava/src/com/google/common/collect/ForwardingQueue.java
return delegate( ).remove( ) ;
return delegate ( ) .element ( ) ;
public E peek() { return delegate().peek(); } @Override @ParametricNullness public E element() { <extra_id_0> } protected boolean standardOffer(@ParametricNullness E e) { try { return add(e); } catch (IllegalStateException caught) { return false;