in component-dsl/src/main/java/org/apache/aries/component/dsl/internal/ConcurrentDoublyLinkedList.java [468:475]
public boolean contains(Object o) {
if (o == null)
return false;
for (NodeImpl<E> n = header.forward(); n != null; n = n.forward())
if (o.equals(n.element))
return true;
return false;
}