| Package | Description | 
|---|---|
| org.springframework.util.comparator | Useful generic  java.util.Comparatorimplementations,
 such as an invertible comparator and a compound comparator. | 
| Class and Description | 
|---|
| BooleanComparator | 
| ComparableComparator Comparator that adapts Comparables to the Comparator interface. | 
| NullSafeComparator A Comparator that will safely compare nulls to be lower or higher than
 other objects. |