Error in running jar/class files under Ubuntu

[micromike09]

Hi, newbie here :). This is my first post and I think I'll be spending sometime on this forum. I just installed Ubuntu 8.04 - Hardy 32 bit. I compiled a basic java application in NetBeans 6.01 (Visual Application). I run the program fine under the IDE but when I try to run the jar file or the class files, I get errors.

Here is what I get when I try to run the jar file by doing this:

"java -jar filename.jar"

I have these files on the Desktop folder.

output at the terminal >

~/Desktop$ java -jar DBMan.jar

Exception in thread "main" java.lang.NoClassDefFoundError: org/jdesktop/application/SingleFrameApplication
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :637)
at java.security.SecureClassLoader.defineClass(Secure ClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader .java:277)
at java.net.URLClassLoader.access$000(URLClassLoader. java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java: 212)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 23)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 68)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:336)
Caused by: java.lang.ClassNotFoundException: org.jdesktop.application.SingleFrameApplication
at java.net.URLClassLoader$1.run(URLClassLoader.java: 217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 23)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 68)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:336)
... 12 more
Could not find the main class: dbman.DBManApp. Program will exit.

I get the same error when I try to run the .class files.

I have the latest JVM on this system, I used sudo to get it not long ago.

Any ideas?

Thanks

Michael