jboss-cli --gui gives NPE

 [max@greybeard ../jboss-as-7.1.0.Final-SNAPSHOT]$ bin/jboss-cli.sh --gui
java.lang.NullPointerException
	at org.jboss.as.cli.gui.CommandExecutor.doCommand(CommandExecutor.java:52)
	at org.jboss.as.cli.gui.ManagementModelNode.explore(ManagementModelNode.java:66)
	at org.jboss.as.cli.gui.ManagementModel.makeTree(ManagementModel.java:57)
	at org.jboss.as.cli.gui.ManagementModel.<init>(ManagementModel.java:52)
	at org.jboss.as.cli.gui.GuiMain.makeTabbedPane(GuiMain.java:125)
	at org.jboss.as.cli.gui.GuiMain.initJFrame(GuiMain.java:112)
	at org.jboss.as.cli.gui.GuiMain.start(GuiMain.java:67)
	at org.jboss.as.cli.impl.CliLauncher.processGui(CliLauncher.java:222)
	at org.jboss.as.cli.impl.CliLauncher.main(CliLauncher.java:182)
	at org.jboss.as.cli.CommandLineMain.main(CommandLineMain.java:34)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.jboss.modules.Module.run(Module.java:260)
	at org.jboss.modules.Main.main(Main.java:288)