Using

ejre-1_6_0_10-ea-b39-linux-armv6-vfp-eabi-headless-eval-30_jul_2009.tar.gz

microemulator-2.0.4

Runing the command
Nokia-N900-51-1:/home/opt/java/microemulator-2.0.4# java -jar microemulator.jar

I get error below

Exception in thread "main" java.awt.HeadlessException
at java.awt.GraphicsEnvironment.checkHeadless(Graphic sEnvironment.java:159)
at java.awt.Window.<init>(Window.java:414)
at java.awt.Frame.<init>(Frame.java:403)
at java.awt.Frame.<init>(Frame.java:368)
at javax.swing.JFrame.<init>(JFrame.java:163)
at org.microemu.app.Main.<init>(Main.java:772)
at org.microemu.app.Main.<init>(Main.java:769)
at org.microemu.app.Main.main(Main.java:1029)

Any suggestions?