Hello, Please have a look at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=797595
Commenting the line in /etc/java-8-openjdk/accessibility.properties may help with X11 issues, but I believe the ground issue is that the openjdk awt toolkit doesn't tell X11 that it is using threads, and thus all kinds of race conditions can happen within libxcb etc. just because freemind happens to be using threads. Samuel
