Error when opening spark on linux.

Installed spark rpm package on centos 6.9. Error thrown while opening the spark app,

Please help me to resolve this issue.

[root@localhost bin]# ./startup.sh

using classpath: /usr/share/spark/lib/jdom.jar:/usr/share/spark/lib/log4j.jar:/usr/share/spark/l ib/lti-civil.jar:/usr/share/spark/lib/fmj.jar:/usr/share/spark/lib/jspeex.jar:/u sr/share/spark/lib/libjitsi.jar:/usr/share/spark/lib/zrtp4j-light.jar:/usr/share /spark/lib/jna.jar:/usr/share/spark/lib/bcpkix.jar:/usr/share/spark/lib/bcprov.j ar:/usr/share/spark/lib/bccontrib.jar:/usr/share/spark/lib/ice4j.jar:/usr/share/ spark/lib/osgi.core.jar:/usr/share/spark/lib/startup.jar:/usr/share/spark/lib/li nux/jdic.jar:/usr/share/spark/resources

java.lang.reflect.InvocationTargetException

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.ja va:43)

    at java.lang.reflect.Method.invoke(Method.java:498)

    at org.jivesoftware.launcher.Startup.start(Startup.java:88)

    at org.jivesoftware.launcher.Startup.main(Startup.java:38)

Caused by: java.lang.ExceptionInInitializerError

    at com.jtattoo.plaf.AbstractLookAndFeel.<clinit>(AbstractLookAndFeel.java:42)

    at java.lang.Class.forName0(Native Method)

    at java.lang.Class.forName(Class.java:348)

    at javax.swing.SwingUtilities.loadSystemClass(SwingUtilities.java:1874)

    at javax.swing.UIManager.setLookAndFeel(UIManager.java:582)

    at org.jivesoftware.Spark.loadLookAndFeel(Spark.java:258)

    at org.jivesoftware.Spark.startup(Spark.java:173)

    ... 6 more

Caused by: java.awt.HeadlessException

    at sun.awt.HeadlessToolkit.getScreenSize(HeadlessToolkit.java:284)

    at com.jtattoo.plaf.JTattooUtilities.<clinit>(JTattooUtilities.java:44)