Failed to open GUI NETBACKUP 7.6 on solaris

DISPLAY environment variable is set to: 192.168.168.153
Console was started on:
        SunOS sol13 5.11 11.2 sun4v sparc SUNW,Sun-Fire-T200

Command line options were:
        ./jnbSA

Starting administration console version 7.6.

LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_ALL=

java version "1.7.0_25"
Java(TM) SE Runtime Environment (build 1.7.0_25-b15)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)

java.lang.NoClassDefFoundError: Could not initialize class sun.awt.X11GraphicsEnvironment
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Unknown Source)
        at java.awt.GraphicsEnvironment.createGE(Unknown Source)
        at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(Unknown Source)
        at java.awt.Window.initGC(Unknown Source)
        at java.awt.Window.init(Unknown Source)
        at java.awt.Window.<init>(Unknown Source)
        at java.awt.Frame.<init>(Unknown Source)
        at javax.swing.JFrame.<init>(Unknown Source)
        at vrts.common.utilities.CommonFrame.<init>(CommonFrame.java:76)
        at vrts.common.utilities.CommonFrame.<init>(CommonFrame.java:71)
        at vrts.nbe.BaseNBEFrame.<init>(BaseNBEFrame.java:83)
        at vrts.nbe.LoginFrame.<init>(LoginFrame.java:229)
        at vrts.nbe.JavaPresentationLayer.initiateLogin(JavaPresentationLayer.java:150)
        at vrts.nbe.AdminConsole.main(AdminConsole.java:57)

Display=IPADRESS:0.0