| Class | Description | 
                            | AbstractConcurrentMap |  | 
                            | AbstractConcurrentMap.Segment |  | 
                            | AbstractConcurrentMapBase |  | 
                            | AbstractConcurrentMapBase.Segment |  | 
                            | ArrayIterable | Allow an array to be used where an Iterable is expected. | 
                            | ArrayIterator | Allow an array to be used where an Iterator is expected. | 
                            | BooleanArrayIterator | Allow a boolean array to be used where an Iterator is expected. | 
                            | ByteArrayIterator | Allow a byte array to be used where an Iterator is expected. | 
                            | CharArrayIterator | Allow a char array to be used where an Iterator is expected. | 
                            | CharSequenceReader | Reader implementation that can read from String, StringBuffer,
 StringBuilder, CharBuffer or GString. | 
                            | ComplexKeyHashMap |  | 
                            | ComplexKeyHashMap.Entry |  | 
                            | DoubleArrayIterable | Allow a double array to be used where an Iterable is expected. | 
                            | DoubleArrayIterator | Allow a double array to be used where an Iterator is expected. | 
                            | FastArray |  | 
                            | FloatArrayIterator | Allow a float array to be used where an Iterator is expected. | 
                            | HashCodeHelper | A utility class to help calculate hashcode values
 using an algorithm similar to that outlined in
 "Effective Java, Joshua Bloch, 2nd Edition". | 
                            | IntArrayIterable | Allow an int array to be used where an Iterable is expected. | 
                            | IntArrayIterator | Allow an int array to be used where an Iterator is expected. | 
                            | IteratorBufferedIterator | An implementation for BufferedIterator wraps Iterator. | 
                            | LazyReference | Soft reference with lazy initialization under lock | 
                            | ListBufferedIterator | An implementation for BufferedIterator wraps ListIterator. | 
                            | ListHashMap | This class represents a Map that is optimized for a small number of
 entries. | 
                            | LockableObject | A bit simplified lock designed to be inherited by. | 
                            | LongArrayIterable | Allow a long array to be used where an Iterable is expected. | 
                            | LongArrayIterator | Allow a longt array to be used where an Iterator is expected. | 
                            | ManagedConcurrentLinkedQueue | A queue that stores values wrapped in a Reference, the type of which is
 determined by the provided ReferenceBundle. | 
                            | ManagedConcurrentMap |  | 
                            | ManagedConcurrentMap.Entry |  | 
                            | ManagedConcurrentMap.EntryWithValue |  | 
                            | ManagedConcurrentMap.Segment |  | 
                            | ManagedConcurrentValueMap | This is a basic implementation of a map able to forget its values. | 
                            | ManagedLinkedList | This class provides a very simple linked list of memory managed elements. | 
                            | ManagedReference |  | 
                            | ReferenceBundle |  | 
                            | ReferenceManager |  | 
                            | ReleaseInfo | Exposes the Groovy release information | 
                            | ShortArrayIterator | Allow a short array to be used where an Iterator is expected. | 
                            | SingleKeyHashMap |  | 
                            | SingleKeyHashMap.Entry |  | 
                            | StringUtil | String utility functions. | 
                            | TripleKeyHashMap |  | 
                            | TripleKeyHashMap.Entry |  | 
                            | URLStreams |  |