The vino-client java VNC client crashes when DISPLAY is set to the second head of my desktop:

rab@loris> cat `which vncviewer`
#!/bin/sh
exec java -jar /usr/share/gnome/vino/vino-client.jar ${1+"$@"}
rab@loris> DISPLAY=:0.1 vncviewer :0
java.lang.ArrayIndexOutOfBoundsException: 1
        at sun.awt.X11GraphicsEnvironment.getDefaultScreenDevice(X11GraphicsEnvironment.java:218)
        at java.awt.Window.init(Window.java:354)
        at java.awt.Window.<init>(Window.java:407)
        at java.awt.Frame.<init>(Frame.java:402)
        at java.awt.Frame.<init>(Frame.java:367)
        at vncviewer.Dialog.<init>(Dialog.java:34)
        at vncviewer.OptionsDialog.<init>(OptionsDialog.java:30)
        at vncviewer.CConn.<init>(CConn.java:95)
        at vncviewer.VNCViewer.run(VNCViewer.java:151)
        at java.lang.Thread.run(Thread.java:619)
Exception in thread "Thread-1" java.lang.ArrayIndexOutOfBoundsException: 1
        at sun.awt.X11GraphicsEnvironment.getDefaultScreenDevice(X11GraphicsEnvironment.java:218)
        at java.awt.Window.init(Window.java:354)
        at java.awt.Window.<init>(Window.java:407)
        at java.awt.Frame.<init>(Frame.java:402)
        at java.awt.Frame.<init>(Frame.java:367)
        at vncviewer.Dialog.<init>(Dialog.java:34)
        at vncviewer.MessageBox.<init>(MessageBox.java:30)
        at vncviewer.MessageBox.<init>(MessageBox.java:61)
        at vncviewer.VNCViewer.run(VNCViewer.java:163)
        at java.lang.Thread.run(Thread.java:619)
rab@loris>

But it works when DISPLAY is set to the first screen:

rab@loris> DISPLAY=:0.0 vncviewer :0
Java Accessibility Bridge for GNOME loaded.

CConn: connected to host localhost port 5900
CConnection: Server supports RFB protocol version 3.3
CConnection: Using RFB protocol version 3.3
CConn: Using pixel format depth 24 (32bpp) big-endian rgb888
CConn: Using ZRLE encoding
<it works>