I am trying to run maven.xml from another maven.xml - is it possible? Here
is the directory structure that I've:

Folder1
Subfolder1a
Subfolder1b
Subfolder1c
Subfolder1d

Each folder contains it's own maven.xml, project.xml. So, what I want to do
is, build all of them together using a single maven file. For that, I want
to put a maven.xml in the top level directory (Folder1) and call individual
maven.xml in each subfolder (folder1a, folder1b and so on).

Is it possible and how?

Thanks,
xarora