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  1. JDK
  2. JDK-8300235

Use VarHandle access in Image(Input | Output)StreamImpl classes

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      VarHandle access gives much better performance compared to explicit bit-shifting, especially for operations in loops.

      See https://github.com/openjdk/jdk/pull/11840 for similar changes made to the class java.io.Bits.

            pminborg Per-Ake Minborg
            pminborg Per-Ake Minborg
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