Set working directory for a single thread

Question

Hi there,
Well, there are already some threads about the "working directory" subject.
Here's a new variant: I need to have different working directorys for each thread.
I am currently enhancing an application to do some similar jobs multithreaded (but each one in a different working dir).
So far, I started n instances of the same application in n virtual machines in n shells with each one having a different working dir.
I think compared to the old way, doing it with multithreading is a good resource saving optimization...
Reading through the 'working directory' threads , I everywhere found the recommendation to do without the internal 'cd' and use absolute paths instead.
The problem is:
Some of the lower level classes create directories and files in their constructors to make sure they exist when performing later actions.
If there is really no way other than using absolute paths, I would need to change many constructor's and method's signatures (from the creation of a Runnable Object all the way down to the creation of the mentioned classes).
So please, don't recommend me to use absolute paths if there's a trick to do a 'cd'.
Of course, if there is really no way to do a 'cd' for a thread, this would be bad luck...
Hoping for help
Markus

Answer 1

Hi,
Reading those threads, I was not sure if the conclusion is "I can not" or "I should not" (maybe because its very difficult or it may have side effects or whatever).
The scenario I described is true, but it was also meant to prevent people from saying "you should not" too easily.
But if the conclusion is "I can not", it seems I will have to do numerous changes. Bad luck for me.
Anyway, Thanx.