I have tried running the latest development snapshot, 4.1 dev, which I require for PubMed searching, and JabRef freezes on my Linux box. it opens fine, and then within a minute, becomes unresponsive.
I am running OpenSuse Leap 42.2 with openjdk version “1.8.0_151”
I switched and still have problems. If I double click an entry to edit it, it is blank below except for the icons on the far left. I cannot edit. This is frustrating because JabRef up to 3.8 worked just fine.
there were some recent bug fixes regarding freezing and editing entries. Could you please try out the latest version from here? https://builds.jabref.org/master/
I upgraded my system tp Leap 42.3 and it seems to be working now. I guess it was worth the pain. Installing the java dependencies on OpenSUSE takes some searching.
Good to hear that you were able to fix the issue. Since you mention your troubles installing java and javafx, could you please edit the installation notes so that other users have it easier to install JabRef under OpenSuse. Thanks!