@SuppressWarnings({"unchecked"}) @Override public T[] call() throws Exception { OpenBitSetDISI accumulator = new OpenBitSetDISI(finalBitsetSize); OpenBitSetDISI toCompareDisi = new OpenBitSetDISI(finalBitsetSize); toCompareDisi.inPlaceOr(toCompare.iterator()); Object[] result = new Object[toIndex - fromIndex]; for (int i = fromIndex; i < toIndex; i++) { result[i - fromIndex] = operation.compute(accumulator, bs[i], toCompareDisi); } return ArrayUtils.typedArray(result); }