Since version 18, we've archived jar file, not zip files. The web page update didn't reflect that, sorry.  I've fixed things I think.

Sean

> On Jan 25, 2023, at 7:40 AM, Kelvin Zhang <[log in to unmask]> wrote:
> 
> Hi,
> 
> I was trying to download Mason20.zip file from the webpage
> https://cs.gmu.edu/~eclab/projects/mason/
> 
> But I received the error message 
> "
> Not Found
> The requested URL /~eclab/projects/mason/mason20.zip was not found on this server.
> "
> I could not find any other website that provide the mason20.jar file.
> 
> Please help to fix the website download problem, or let me know where to get the jar file. Thank you!
> 
> Regards,
> Kelvin Zhang