Universal Media Server | Forum

What could this mean? Any idea how I can fix it?

09-08 07:24:17 Build: 4660ba3df (2015-08-13)
09-08 07:24:17 Java: OpenJDK 64-Bit Server VM 1.7.0_85 64-bit by Oracle Corporation
09-08 07:24:17 OS: Linux 64-bit 4.1.0-2-amd64
....

09-08 07:24:18 A serious error occurred during PMS init
java.lang.NullPointerException: null
at javax.swing.JToggleButton$AccessibleJToggleButton.itemStateChanged(JToggleButton.java:400) ~[na:1.7.0_85]
at net.pms.encoders.MEncoderVideo.config(MEncoderVideo.java:464) ~[ums.jar:5.2.2]
at net.pms.newgui.TreeNodeSettings.getConfigPanel(TreeNodeSettings.java:80) ~[ums.jar:5.2.2]
at net.pms.newgui.TranscodingTab.addEngines(TranscodingTab.java:350) ~[ums.jar:5.2.2]
at net.pms.newgui.LooksFrame.addEngines(LooksFrame.java:519) ~[ums.jar:5.2.2]
at net.pms.PMS.init(PMS.java:676) [ums.jar:5.2.2]
at net.pms.PMS.createInstance(PMS.java:1029) [ums.jar:5.2.2]
at net.pms.PMS.main(PMS.java:1141) [ums.jar:5.2.2]

apparently it's just an openjdk issue. switching to the official java binary from java.com works fine. kinda stinks since openjdk is default on most linux distributions.