at the end of merging files reports:

[erandolphsl]

java.lang.NullPointerException
 at org.freedesktop.dbus.Message.appendone(Message.java:509)
 at org.freedesktop.dbus.Message.append(Message.java:787)
 at org.freedesktop.dbus.MethodCall.<init>(MethodCall.java:71)
 at org.freedesktop.dbus.MethodCall.<init>(MethodCall.java:26)
 at org.freedesktop.dbus.RemoteInvocationHandler.executeRemoteMethod(RemoteInvocationHandler.java:104)
 at org.freedesktop.dbus.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:188)
 at $Proxy1.IsInhibited(Unknown Source)
 at org.gnome.split.dbus.DbusInhibit.isInhibited(DbusInhibit.java:89)
 at org.gnome.split.gtk.DefaultEngineListener.setEngine(DefaultEngineListener.java:122)
 at org.gnome.split.gtk.DefaultEngineListener.engineEnded(DefaultEngineListener.java:281)
 at org.gnome.split.core.merger.DefaultMergeEngine.fireEngineEnded(DefaultMergeEngine.java:252)
 at org.gnome.split.core.merger.Generic.merge(Generic.java:149)
 at org.gnome.split.core.merger.DefaultMergeEngine.run(DefaultMergeEngine.java:151)
 at java.lang.Thread.run(Thread.java:679)

[Guillaume Mazoyer (respawneral)]

After releasing the 1.2 version, GNOME Split will not rely on the dbus dependency so I guess that it should be fixed.