fedora10下用YOYOPlayer出错，执行命令如下

muyizhou

[root@yangzhou bin]# java -jar /usr/local/YOYOPlayer1.1.3/YOYOPlayer.jar
Exception in thread "main" java.lang.NullPointerException
        at com.hadeslee.yoyoplayer.player.ui.Main.setLocation(Main.java:576)
        at java.awt.Window.init(Window.java:404)
        at java.awt.Window.<init>(Window.java:438)
        at java.awt.Frame.<init>(Frame.java:419)
        at java.awt.Frame.<init>(Frame.java:384)
        at javax.swing.JFrame.<init>(JFrame.java:180)
        at com.hadeslee.yoyoplayer.player.ui.Main.<init>(Main.java:61)
        at com.hadeslee.yoyoplayer.player.ui.Main.main(Main.java:79)
[root@yangzhou bin]# ./java -jar /usr/local/YOYOPlayer1.1.3/YOYOPlayer.jar
Exception in thread "main" java.lang.NullPointerException
        at com.hadeslee.yoyoplayer.player.ui.Main.setLocation(Main.java:576)
        at java.awt.Window.init(Window.java:404)
        at java.awt.Window.<init>(Window.java:438)
        at java.awt.Frame.<init>(Frame.java:419)
        at java.awt.Frame.<init>(Frame.java:384)
        at javax.swing.JFrame.<init>(JFrame.java:180)
        at com.hadeslee.yoyoplayer.player.ui.Main.<init>(Main.java:61)
        at com.hadeslee.yoyoplayer.player.ui.Main.main(Main.java:79)
[root@yangzhou bin]# cd /usr/lib/jvm/java-6-sun/jre/lib/fonts
bash: cd: /usr/lib/jvm/java-6-sun/jre/lib/fonts: 没有那个文件或目录
[root@yangzhou bin]#