Problem w/ Forte debugger

While I like Forte a lot it sometimes baffles me with cryptic responses: tracing (F7) into a simple public class file with a couple of other classes defined down in same file - it responds before it even traces one line :
java.lang.NoClassDefFoundError: SportsUnion (wrong name: C/SportsUnion)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
Exception in thread "main"
How on earth can the name be "wrong"? It compiles just fine. Any help would be appreciated. To anyone whom may answer this there's yet another odd one I just found.
Thanks J.T.

Hello TownsendJ,
Maybe you can simply the class that you are debugging and post it on the Forum so that we can try to reproduce the execption that you are getting.
-Merwyn,
Developer Technical Support,
http://www.sun.com/developers/support.

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