Essentially this is a data copy which in middleware is very expensive and should be avoided.

So the copy of your sequence will be free, but the interpretation of what it means, what you can do about it, and how to use it -- the manual for your genes so to speak -- will be expensive.

Then the other copy might lose the ability to perform the second of the two functions.

In essence, because G1 compacts as it proceeds, it copies objects from one area of the heap to the other.

We will copy these files into our project later.