Hi @arinbasu You can run Jabref Version 3.8.2.jar. I know this version is limited featured compared to the current release, but it may generate interest in people that can overcome the lack of JavaFX. Apart from being JAVA slow, I found JabRef a capable reference manager (I had over 100 000 references) backed by an active user group. The beauty was you could direct edit entries and do what you wanted, unlike paid offerings, so I think it would appeal to any Haiku user doing publishable research (enthusiastic young Uni students with skills to take Haiku next-level 
) .
Your post saved me a heap of time, getting to this option which is usable for me.
- Install OpenJDK 8 JRE (the java cup icon) using HaikuDepot. Also install openjdk8_default or Haiku shell will not recognise “java” or load anything.
- Download JabRef-3.8.2. JabRef-3.8.2 is the last version before JavaFX started being used. From JabRef5.0 is fully JavaFX.
- Open Terminal and cd to your download directory, then ~>java -JabRef-3.8.2.jar
I get a warning: “There seems to be a problem with OpenDK the default GTK Look&Feel. Using Metal L&F instead”." This it does, and I don’t like it, but Voila you have a working version of JabRef.
For anyone else without an existing JabRef experience, or a .bib file to test, I used: I selected his zip. Then in Jabref menu select File–>Opendatabase
Thanks to @giahung.1997tn for the trick
Edit: For some reason my install is taking 30 seconds to open a simple linked text file called from a BibTex entry within JabRef. Also linked URLs doesn’t link! By menu -->Tools–> Open Terminal Here I can see it is opening a URL link as a file link, and so it is not processing it correctly. Not surprising given it is on a Unique OS and File System. A real bummer, because that is a key functionality of JabRef. Anyone?? Help!