/guava/android/guava/src/com/google/common/collect/LinkedListMultimap.java
keyList.tail = requireNonNull( 2) ;
keyList.tail = requireNonNull ( node.previousSibling ) ;
if (node.previousSibling == null) { keyList.head = requireNonNull(node.nextSibling); } else { node.previousSibling.nextSibling = node.nextSibling; } if (node.nextSibling == null) { <extra_id_0> } else { node.nextSibling.previousSibling = node.previousSibling; } } size--; }