This is so hard to fathom from my viewpoint. In the US, it seems, every large company has a software R&D department that has been writing Java for 30 years. I exaggerate, but I wonder: do you not have bank chains, grocery chains, major construction firms, accounting and payroll, or energy and water utilities?

I would think, also, given the trade embargo, you'd have to write and maintain (somewhere within your borders) all the software which an American company might buy off-the-shelf.