add initial compact immutable collection implementations

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    • Type: Sub-task
    • Resolution: Fixed
    • Priority: P4
    • 9
    • Affects Version/s: None
    • Component/s: core-libs
    • None

      This initial implementation includes work that covers the following subtasks:

      JDK-8133975 add hashing implementation to unmodifiable sets and maps
      JDK-8133979 make all unmodifiable List implementions implement RandomAccess
      JDK-8133976 add random iteration order to hash-based unmodifiable collections
      JDK-8133980 reuse emptySet, singletonSet, etc. for various views such as entrySet() on one-element Map
      JDK-8139231 tune unmodifiable implementations based on size and performance test results

      I'll therefore close out those subtasks as duplicates of this one.

            Assignee:
            Stuart Marks
            Reporter:
            Stuart Marks
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              Created:
              Updated:
              Resolved: