The following locations in J2SE's java.util sources define serializable classes
that don't define a serialVersionUID. These may result in an unintentional
serialization incompatibility in the future.

src/share/classes/java/util/Collections.java:1044: class java.util.Collections.UnmodifiableSet
src/share/classes/java/util/Collections.java:1075: class java.util.Collections.UnmodifiableSortedSet
src/share/classes/java/util/Collections.java:1311: class java.util.Collections.UnmodifiableMap.UnmodifiableEntrySet
src/share/classes/java/util/Collections.java:1447: class java.util.Collections.UnmodifiableSortedMap
src/share/classes/java/util/Collections.java:1615: class java.util.Collections.SynchronizedSet
src/share/classes/java/util/Collections.java:1676: class java.util.Collections.SynchronizedSortedSet
src/share/classes/java/util/Collections.java:2043: class java.util.Collections.SynchronizedSortedMap
src/share/classes/java/util/Collections.java:2149: class java.util.Collections.EmptyMap
src/share/classes/java/util/Collections.java:2266: class java.util.Collections.SingletonMap
src/share/classes/java/util/Currency.java:31: class java.util.Currency
src/share/classes/java/util/EventObject.java:21: class java.util.EventObject
src/share/classes/java/util/IdentityHashMap.java:109: class java.util.Identit
src/share/classes/java/util/LinkedHashMap.java:123: class java.util.Linke
src/share/classes/java/util/LinkedHashSet.java:94: class java.util.Linke
src/share/classes/java/util/PropertyPermission.java:396: class java.util.PropertyPermissionCollection
src/share/classes/java/util/PropertyPermission.java:65: class java.util.PropertyPermission
src/share/classes/java/util/TreeSet.java:70: class java.util.TreeSet
src/share/classes/java/util/logging/Level.java:44: class java.util.logging.Level
src/share/classes/java/util/logging/LogRecord.java:49: class java.util.logging.LogRecord
src/share/classes/java/util/logging/LoggingPermission.java:38: class java.util.logging.LoggingPermission
src/share/classes/java/util/prefs/AbstractPreferences.java:1429: class java.util.prefs.AbstractPreferences.NodeAddedEvent
src/share/classes/java/util/prefs/AbstractPreferences.java:1434: class java.util.prefs.AbstractPreferences.NodeRemovedEvent
src/share/classes/java/util/prefs/NodeChangeEvent.java:29: class java.util.prefs.NodeChangeEvent
src/share/classes/java/util/prefs/PreferenceChangeEvent.java:28: class java.util.prefs.PreferenceChangeEvent
src/share/classes/sun/util/BuddhistCalendar.java:15: class sun.util.BuddhistCalendar
src/share/classes/sunw/util/EventObject.java:35: class sunw.util.EventObject