/guava/guava/src/com/google/common/collect/ImmutableList.java
checkNotNull( comparator) ;checkNotNull( element) ;
checkNotNull ( element ) ;
forceCopy = false; } } @CanIgnoreReturnValue @Override public Builder<E> add(E element) { <extra_id_0> getReadyToExpandTo(size + 1); contents[size++] = element; return this; } @CanIgnoreReturnValue @Override