| Name | Description | Type | Package | Framework |
| AbstractCollectionConcurrentMap | A ConcurrentHashMap whose values are Collection instances (specialized in concrete subclasses). | Class | org.jppf.utils.collections | Jppf |
| AbstractCollectionHashtable | A Hashtable whose values are Collection instances (specialized in concrete subclasses). | Class | org.jppf.utils.collections | Jppf |
| AbstractCollectionMap | A map whose values are collections of a given component type. | Class | org.jppf.utils.collections | Jppf |
| AbstractCollectionSortedMap | A sorted map whose values are sets of a given component type. | Class | org.jppf.utils.collections | Jppf |
| ArrayListHashMap | A HashMap whose values are ArrayLists of a given component type. | Class | org.jppf.utils.collections | Jppf |
| CollectionMap | Interface for maps whose values are collections of a given component type. | Interface | org.jppf.utils.collections | Jppf |
| CollectionUtils | This class provides a set of utility methods for manipulating and converting collections and arrays. | Class | org.jppf.utils.collections | Jppf |
| ConcurrentHashSet | A concurrent et implementation backed by a ConcurrentHashMap. | Class | org.jppf.utils.collections | Jppf |
| CopyOnWriteListConcurrentMap | A ConcurrentHashMap whose values are CopyOnWriteArrayList instances. | Class | org.jppf.utils.collections | Jppf |
| EnumSetEnumMap | A map whose keys and values are elements of an enum type. | Class | org.jppf.utils.collections | Jppf |
| IteratorEnumeration | Class | org.jppf.utils.collections | Jppf | |
| LinkedListSortedMap | A sorted map whose values are linked lists of a given component type. | Class | org.jppf.utils.collections | Jppf |
| Metadata | A generic dictionary of metadata. | Interface | org.jppf.utils.collections | Jppf |
| MetadataImpl | An implementation of the Metadata interface backed by a Hashtable. | Class | org.jppf.utils.collections | Jppf |
| SetHashMap | A hash map whose values are sets of a specified component type. | Class | org.jppf.utils.collections | Jppf |
| SetIdentityMap | An identity map whose values are sets of a specified component type. | Class | org.jppf.utils.collections | Jppf |
| SetSortedMap | A sorted map whose values are sets of a given component type. | Class | org.jppf.utils.collections | Jppf |
| SoftReferenceValuesMap | Map whose values are soft references. | Class | org.jppf.utils.collections | Jppf |
| SortedSetSortedMap | A sorted map whose values are sorted sets of a given component type. | Class | org.jppf.utils.collections | Jppf |
| VectorHashtable | A Hashtable whose values are Vector instances. | Class | org.jppf.utils.collections | Jppf |