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  1. JDK
  2. JDK-8282130

(bf) Remove unused ARRAY_BASE_OFFSET, ARRAY_INDEX_SCALE from read-only Heap Buffers

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: P4 P4
    • 19
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    • core-libs
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    • b11

      Two fields in Heap Buffers are unconditionally declared. But they are unused in read-only buffer classes.

          // Cached array base offset
          private static final long ARRAY_BASE_OFFSET = UNSAFE.arrayBaseOffset($type$[].class);

          // Cached array index scale
          private static final long ARRAY_INDEX_SCALE = UNSAFE.arrayIndexScale($type$[].class);

      Affected classes: HeapByteBufferR, HeapCharBufferR, HeapDoubleBufferR, HeapFloatBufferR, HeapIntBufferR, HeapLongBufferR, HeapShortBufferR.

      By widening '#if[rw]' we can remove redundant fields.

            aturbanov Andrey Turbanov
            aturbanov Andrey Turbanov
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              Created:
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