Index: modules/luni/src/main/java/java/util/LinkedHashSet.java =================================================================== --- modules/luni/src/main/java/java/util/LinkedHashSet.java (revision 374051) +++ modules/luni/src/main/java/java/util/LinkedHashSet.java (working copy) @@ -25,6 +25,8 @@ public class LinkedHashSet extends HashSet implements Set, Cloneable, Serializable { + private static final long serialVersionUID = -2851667679971038690L; + /** * Contructs a new empty instance of LinkedHashSet. */