private static SparseIntArray makeBucketSizeArray(int... params) {
    Preconditions.checkArgument(params.length % 2 == 0);
    final SparseIntArray bucketSizes = new SparseIntArray();
    for (int i = 0; i < params.length; i += 2) {
      bucketSizes.append(params[i], params[i + 1]);
    }
    return bucketSizes;
  }
Allocate the smallest even number than is greater than or equal to the requested size

@param requestSize the logical request size
@return the slightly higher size
imagepipeline/src/test/java/com/facebook/imagepipeline/memory/BasePoolTest.java