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  1. JDK
  2. JDK-6323374 (coll) Optimize Collections.unmodifiable* and synchronized*
  3. JDK-8263397

Release Note: Collections.unmodifiable* Methods Are Idempotent for Their Corresponding Collection

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    • core-libs

      The `unmodifiable*` methods in `java.util.Collections` will no longer re-wrap a given collection with an unmodifiable view if that collection has already been wrapped by same method.

            igraves Ian Graves
            igraves Ian Graves
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