public static void putInt(final int[] target, final long index, final int value) {
        UNSAFE_ACCESSOR.putInt(target, INT_ARRAY_BASE_OFFSET + (index * INT_ARRAY_INDEX_SCALE), value);
    }
Get a {@link UnsafeAccessor} appropriate for the platform.
jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/UnsafeUtil.java