Can I use Java scientific libraries in Google App Engine?

Question

I am trying to make a web application to perform scientific and engineering calculations. I am new to web developing and I've been looking for a free framework (with free hosting), that's why I came to Google App Engine, but there is no way to get scipy working, so I decided to switch to Java instead of python (although I found PythonAnywhere and it has numpy, scipy, etcetera, it has no GUI-building support like PyQt, wx, Tkinter...).

I would like to know if there is a way to use COLT or so for Java in the Google App Engine, or if there is some other option. I would rather free options since I'm at college, but cheap-customizable-options are totally welcome :D (even if it means to use another language)

PD: I hope this was understandable since english is not my language.

EDIT: I TRIED to use apache commons math, and it seems like it's not going to work. The short answer to my question is: NO.

Answer 1

1. I believe GAE is severely limiting in what it will allow you to run.
2. I doubt you will find a completely free Java hosting solution.

Answer 2

To clarify the statements in other posts, GAE is incredibly limiting with respect to Python packages with C extensions. Anything pure Python will work fine. Scipy makes heavy use of C extensions, so it falls into this category.

Google recently introduced Python2.7 support, and with it, the ability to use NumPy on App Engine. I'm not sure if this covers your need, but it might be worth checking out.

I only develop with Python for Google App Engine, so I'm afraid I can't comment on the state of Java external dependencies.