libXp.so.6: cannot open shared object file: No such file or directory

While installing Oracle 10gr2 on linux x86_64 i have faced this error when Oracle Universal Installer is invoked.

Exception java.lang.UnsatisfiedLinkError: /tmp/OraInstall2012-04-16_09-50-07AM/jre/1.4.2/lib/i386/libawt.so: libXp.so.6: cannot open shared object file: No such file or directory occurred..
java.lang.UnsatisfiedLinkError: /tmp/OraInstall2012-04-16_09-50-07AM/jre/1.4.2/lib/i386/libawt.so: libXp.so.6: cannot open shared object file: No such file or directory
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary0(Unknown Source)
        at java.lang.ClassLoader.loadLibrary(Unknown Source)
        at java.lang.Runtime.loadLibrary0(Unknown Source)
        at java.lang.System.loadLibrary(Unknown Source)
        at sun.security.action.LoadLibraryAction.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.awt.NativeLibLoader.loadLibraries(Unknown Source)
        at sun.awt.DebugHelper.<clinit>(Unknown Source)
        at java.awt.Component.<clinit>(Unknown Source)
        at oracle.sysman.oii.oiif.oiifm.OiifmGraphicInterfaceManager.<init>(OiifmGraphicInterfaceManager.java:222)
        at oracle.sysman.oii.oiic.OiicSessionInterfaceManager.createInterfaceManager(OiicSessionInterfaceManager.java:193)
        at oracle.sysman.oii.oiic.OiicSessionInterfaceManager.getInterfaceManager(OiicSessionInterfaceManager.java:202)
        at oracle.sysman.oii.oiic.OiicInstaller.getInterfaceManager(OiicInstaller.java:436)
        at oracle.sysman.oii.oiic.OiicInstaller.runInstaller(OiicInstaller.java:926)
        at oracle.sysman.oii.oiic.OiicInstaller.main(OiicInstaller.java:866)
Exception in thread "main" java.lang.NoClassDefFoundError
        at oracle.sysman.oii.oiif.oiifm.OiifmGraphicInterfaceManager.<init>(OiifmGraphicInterfaceManager.java:222)
        at oracle.sysman.oii.oiic.OiicSessionInterfaceManager.createInterfaceManager(OiicSessionInterfaceManager.java:193)
        at oracle.sysman.oii.oiic.OiicSessionInterfaceManager.getInterfaceManager(OiicSessionInterfaceManager.java:202)
        at oracle.sysman.oii.oiif.oiifm.OiifmAlert.<clinit>(OiifmAlert.java:151)
        at oracle.sysman.oii.oiic.OiicInstaller.runInstaller(OiicInstaller.java:984)
        at oracle.sysman.oii.oiic.OiicInstaller.main(OiicInstaller.java:866)

it is caused from missing package.After installing XFree86-libs Universal installer started successfully.

XFree86-libs-3.3.5-1.5.x.i386.rpm