Am 12.09.2015 um 20:40 schrieb Martin Hanson: > Package: openjdk-8-jre-headless > Version: 8u66-b01-3 > > Having just upgraded with an apt-get dist-upgrade on "testing" the following > error occurs running Minecraft with java: > > LOADEDenfalse > SAVED: enfalse > LOADEDenfalse > SAVED: enfalse > LOADED LANGUAGES > Exception in thread "main" java.awt.AWTError: Assistive Technology not found: > org.GNOME.Accessibility.AtkWrapper > at java.awt.Toolkit.loadAssistiveTechnologies(Toolkit.java:807) > at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:886) > at java.awt.Window.getToolkit(Window.java:1362) > at java.awt.Window.init(Window.java:506) > at java.awt.Window.<init>(Window.java:537) > at java.awt.Frame.<init>(Frame.java:420) > at java.awt.Frame.<init>(Frame.java:385) > at javax.swing.JFrame.<init>(JFrame.java:189) > at net.mc.main.Main.startMC(Main.java:173) > at net.mc.main.Main.main(Main.java:212) > > If I remove the package from testing and manually install the version from > jessie-backports (8u66-b01-1~bpo8+1), the problem is gone. > > I am running with testing on 4.1.0-2-amd64 #1 SMP Debian 4.1.6-1 (2015-08-23) > x86_64 GNU/Linux. > > Kind regards. > > Hi Martin,
this is not a bug. If you want to run any Java application with a GUI, you need the non-headless openjdk package (i.e. openjdk-8-jre). The headless package is intended for "headless" machines like servers. Headless means here system usually running without local monitor, keyboard, mouse, graphical user interface etc. So the -headless package, by design, does not include the parts necessary for running applications like Minecraft. I hope that explanation helps. Best Regards, Jan Henke
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