I'm not sure if the problem is actually related to recent jengine changes, but it is quite strange to me.
JVERSION Engine: j805/j64/linux Beta: commercial/2016-05-10T12:23:26 Library: 8.04.15 Platform: Linux 64 Installer: unknown InstallPath: /usr/share/j/8.0.4 Contact: www.jsoftware.com I have a script which can be simplified to this line to reproduce the crash, crc32=: (((i.32) e. 32 26 23 22 16 12 11 10 8 7 5 4 2 1 0)&(128!:3)) which crashed jqt (Qt 5.6.1) on loading it but occasionally it didn't crash. However it didn't crash when running on jconsole. *** It tested with the original jengine, and it didn't crash on both jqt and jconsole. Engine: j804/j64/linux Release: commercial/2015-12-28 10:47:03 Library: 8.04.15 Platform: Linux 64 Installer: unknown InstallPath: /usr/share/j/8.0.4 Contact: www.jsoftware.com -- regards, ==================================================== GPG key 1024D/4434BAB3 2008-08-24 gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm