Package org.apache.commons.lang3
Class ObjectUtils.Null
java.lang.Object
org.apache.commons.lang3.ObjectUtils.Null
- All Implemented Interfaces:
- Serializable
- Enclosing class:
- ObjectUtils
Class used as a null placeholder where 
null
 has another meaning.
 For example, in a HashMap the
 HashMap.get(Object) method returns
 null if the Map contains null or if there is
 no matching key. The null placeholder can be used to distinguish
 between these two cases.
Another example is Hashtable, where null
 cannot be stored.
- See Also:
- 
Method Summary