Bucket<V> newBucket(int bucketedSize) {
    return new Bucket<V>(
        /*itemSize*/ getSizeInBytes(bucketedSize),
        /*maxLength*/ Integer.MAX_VALUE,
        /*inUseLength*/ 0,
        mPoolParams.fixBucketsReinitialization);
  }
Gets the freelist for the specified bucket. Create the freelist if there isn't one

@param bucketedSize the bucket size
@return the freelist for the bucket
imagepipeline/src/main/java/com/facebook/imagepipeline/memory/BasePool.java