关于在linux系统下用mercury出现的错误，请哪位高人能帮我解答下

[ttyl_1120]

下面是错误提示：
user@host:~$ mercury
Exception in thread "main" java.lang.ClassFormatError: JVMCFRE068 class name is invalid; class=com/dMSN/Main, offset=0
at java.lang.ClassLoader.defineClassImpl(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:265)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:69)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:493)
at java.net.URLClassLoader.access$300(URLClassLoader.java:64)
at java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:892)
at java.security.AccessController.doPrivileged(AccessController.java:284)
at java.net.URLClassLoader.findClass(URLClassLoader.java:414)
at java.lang.ClassLoader.loadClass(ClassLoader.java:643)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:320)
at java.lang.ClassLoader.loadClass(ClassLoader.java:609)

哪个知道的帮我解决下。