Vadim Kononov

A Phusion Passenger developer explained in [this thread](https://github.com/phusion/passenger/issues/223#issuecomment-44504029) why Passenger hangs when Rails is used with JVM. It looks like it'll be quite difficult for me to fix, and I...

@nflorentin Are you able to share a sample project where you are experiencing the hang? Or at least `Gemfile`, `Gemfile.lock`, the controller action, and the file you're trying to fill...

@nflorentin Would you be able to share your `Gemfile` and `Gemfile.lock`? Also, please let me know your version of Java SDK and Mac OS. Thanks.

Thanks, @nflorentin. I noticed that your `Gemfile` doesn't have a ruby version specified. Could you please let me know your Ruby version as well?

@fuadkhan1996 Are you able to provide an stripped down example project? I have not been able to reproduce this issue so far.

@fuadkhan1996 Then I would guess that there are other gems or configurations in your office project that are causing this issue. If I am unable to reproduce the issue, I'm...

@fuadkhan1996 Looks like this is caused by an [issue](https://github.com/arton/rjb/issues/88) with the `rjb` gem, which is used as a dependency.

@igortice I need to update my documentation (will do that soon), but I think iText only supports Java versions 8 - 11.

@piotrmurach Please let me know if there's anything else you need me to do to get this merged. Thanks.

I've made a bit of refactoring to address your comments and after familiarizing myself further with how the `ObjectSpace` class works. Hopefully, this can be merged now, but I'm happy...