I tested the same example as you.
It works on my side...
In your log file there is an error message i didn't have:
java.io.IOException: The pipe is being closed
at java.io.FileOutputStream.writeBytes(Native Method)
at java.io.FileOutputStream.write(Unknown Source)
at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.io.BufferedOutputStream.flush(Unknown Source)
at org.fudaa.dodico.mascaret.DCalculMascaret$1.run(DCalculMascaret.java:546)
runtime exception
java.lang.RuntimeException: C:\Users\59716\AppData\Local\Temp\\fudaa_srv\mascaret\mascaret_8_0\mascaret.exe: abnormal exit
Otherwise the main difference are:
I run on Windows 7
My java version is 1.8.0_131
In order to try to isolate the problem, could you open a DOS command windows, go into the folder ...\AppData\Local\Temp\fudaa_srv\mascaret\mascaret_8_0 and execute mascaret.exe
This should work as Mascaret could run without fudaa environment
If so this mean there is a java problem and I should investigate...
Regards