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

http://blog.csdn.net/maoxiang/article/details/5747109

Exception in thread "main" java.lang.UnsatisfiedLinkError: /usr/java/j2sdk1.4.2_19/jre/lib/i386/libawt.so: libXtst.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(ClassLoader.java:1586)

        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1503)

        at java.lang.Runtime.loadLibrary0(Runtime.java:788)

        at java.lang.System.loadLibrary(System.java:834)

        at sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:50)

        at java.security.AccessController.doPrivileged(Native Method)

        at java.awt.Toolkit.loadLibraries(Toolkit.java:1437)

        at java.awt.Toolkit.<clinit>(Toolkit.java:1458)

        at java.awt.Font.<clinit>(Font.java:136)

        at com.google.code.kaptcha.util.Config.getTextProducerFonts(Config.java:102)

        at com.google.code.kaptcha.text.impl.DefaultWordRenderer.renderWord(DefaultWordRenderer.java:35)

        at com.google.code.kaptcha.impl.DefaultKaptcha.createImage(DefaultKaptcha.java:43)

        at TestLinuxFont.main(TestLinuxFont.java:27)

如果出现以上提示请安装3个相关的包

#yum install libXp

#yum install libXt

#yum install libxtst

Exception in thread "main" java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.

        at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)

        at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:134)

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

        at java.lang.Class.forName(Class.java:141)

        at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:62)

        at java.awt.Font.initializeFont(Font.java:308)

        at java.awt.Font.<init>(Font.java:344)

        at com.google.code.kaptcha.util.Config.getTextProducerFonts(Config.java:102)

        at com.google.code.kaptcha.text.impl.DefaultWordRenderer.renderWord(DefaultWordRenderer.java:35)

        at com.google.code.kaptcha.impl.DefaultKaptcha.createImage(DefaultKaptcha.java:43)

        at TestLinuxFont.main(TestLinuxFont.java:27)

如果出现以上出错，启动中加入java 参数

-Djava.awt.headless=true