docs: protected void initializeEntry(Entry other, long currentTime) {
          assert (this.isEmpty());
          assert (other.getBuffer().isEmpty());
          this.data.add(other.data);
          this.timestamp = currentTime;
          this.child = other.child;
          if (child!=null){
          	for (Entry e : child.getEntries()){
          		e.setParentEntry(this);
          	}
          }
      }