problem running java code with graphics Method

[shadihariri]

Hi everybody
I hava problem with running a java class with some use of awt & swing .
but when i run this code in windows all the things works. The message shown in eclipse console is like this :#0 /usr/lib/libxcb-xlib.so.0 [0xb56067c7]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb5606891]
#2 /usr/lib/libX11.so.6(_XReply+0x254) [0xb565a494]
#3 /usr/lib/Java6u1/jre/lib/i386/xawt/libmawt.so [0xb575b22e]
#4 /usr/lib/Java6u1/jre/lib/i386/xawt/libmawt.so [0xb5739ed7]
#5 /usr/lib/Java6u1/jre/lib/i386/xawt/libmawt.so [0xb573a188]
#6 /usr/lib/Java6u1/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_ini tDisplay+0x2f) [0xb573a48f]
#7 [0xb5cf968e]
#8 [0xb5cf1e9d]
#9 [0xb5cf1e9d]
#10 [0xb5cef207]
#11 /usr/lib/Java6u1/jre/lib/i386/client/libjvm.so [0x620967d]
#12 /usr/lib/Java6u1/jre/lib/i386/client/libjvm.so [0x63057d8]
#13 /usr/lib/Java6u1/jre/lib/i386/client/libjvm.so [0x6209510]
#14 /usr/lib/Java6u1/jre/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x34b) [0x625f38b]
#15 /usr/lib/Java6u1/jre/lib/i386/libjava.so(Java_java_security_AccessController_doP rivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb7d0a96d]
#16 [0xb5cf968e]
......
did i miss some packages when i install java on ubuntu ?