I've written an alternative org-java.el that doesn't have that problem. I
wanted to add it to contrib/ but haven't been able to get access. if you
want to try it I can post it somewhere.

On Thu, Jun 25, 2020 at 7:29 AM Jarmo Hurri <jarmo.hurri@iki.fi> wrote:

>
> Greetings.
>
> In the org file below, the first babel block will evaluate just fine,
> while the second will signal "End of file during parsing". The
> difference is the opening bracket "[" in output.
>
> I think am running the most recent stable version:
> Org mode version 9.3.7 (release_9.3.7-4-gba6ca7)
>
> Thanks for any ideas.
>
> Jarmo
>
> #
> ---------------------------------------------------------------------------
> * This will parse just fine
>   #+name: OK
>   #+begin_src java :exports results :classname OK :results output
>     class OK
>     {
>       public static void main (String[] args) { System.out.println
> ("foo"); }
>     }
>   #+end_src
>
>   #+RESULTS: OK
>   : foo
>
> * This will generate a parse error when evaluated
>   #+name: BAD
>   #+begin_src java :exports results :classname BAD :results output
>     class BAD
>     {
>       public static void main (String[] args) { System.out.println
> ("[foo"); }
>     }
>   #+end_src
>
>
>