StarMade-Starter.jar blank window on Linux

[l0b0]

If I open the StarMade-Starter.jar file with the OpenJDK 6 or 7 runtime I simply see an empty window and nothing happens. In the shell:


$ java -version
java version "1.7.0_21"
OpenJDK Runtime Environment (IcedTea 2.3.9) (7u21-2.3.9-1ubuntu1)
OpenJDK 64-Bit Server VM (build 23.7-b01, mixed mode)
$ java -jar ~/download/StarMade-Starter.jar
ERROR, FILE DOES NOT EXIST: /home/username/.StarMade/settings.properties
$ touch /home/username/.StarMade/settings.properties
$ java -jar ~/download/StarMade-Starter.jar
java.lang.NullPointerException
at org.schema.game.common.updater.MemorySettings.loadSettings(MemorySettings.java:54)
at org.schema.game.common.updater.UpdatePanel.(UpdatePanel.java:76)
at org.schema.game.common.updater.Launcher.(Launcher.java:191)
at org.schema.game.common.updater.Launcher$1.run(Launcher.java:50)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:727)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.awt.EventQueue$3.run(EventQueue.java:686)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:697)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
[VERSION] VERSION: 0.0
[VERSION] BUILD: undefined

I couldn't find any list of known compatible Java runtimes. Does anyone know how to install on Linux?