Yes, in some cases this works, and even got quite fast fix, thanks.

I hope, we can get more fixes done and not only with SQL

I would not say that I did not expect that.

I provided all source code, which easily shows errors, but as an answer got 

we can't reproduce this bug

If I could resolve those issues by myself I would do it, but this is InterSystems responsibility 

With those errors, I would not use JDBC in production, would not even try any project, due to the bugs I discovered with SQLancer project.

And for Python, luckily I already have driver in pure Python that works much more stable than new official one, so, would use it, and would not use official driver, as I see that it can fail at any time. 

I have no reason to use WRC for reporting these bugs, as I did not find it for the company, I found it in open source projects. And after discoveries, would not even try implementing it in company, so, no point.

Thanks, and congrats to others winners