Thanks folks....
Added the compiler option "-Xlint:unchecked" which provided greater detail of the message.
Exception in thread "main" java.lang.UnsupportedClassVersionError: weblinktool/j
fWebLinkEntry (Unsupported major.minor version 49.0)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknow n Source)
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$100(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Apparently I was running an old version of Java <duh - a path failing and dependency of the JFrame Netbeans construct on the new jre/jdk>. It was kind of odd since I had recently upgraded to NetBeans 6.0.1 and had included the jre/jdk. Will have to check to see what is going on with my Linux machine, figured this out on Windows 2000 had some time to muck around, if this is is the problem there also (same message - probably is).
I had assumed that I was making some basic brain fart.
Funnier still, had addressed similar issues before in my Java development, usually though those were cases where NetBeans had problems also - eh, turned into a grip about meaningful error messages...
Thanks folks....