Error while trying to run program using java.exe

Question

First of all I'd like to apoligize if this thread already exists here somewhere.. I've spent the last hours Googling and searching the forums for an answer, but haven't found one, so I posted a topic..
The problem is the following:
I'm using Netbeans 5.5 with JDK1.6.0. When I build/run a Java application in this IDE, I get no errors whatsoever..
But, when I try to run it from the prompt, using following code (I copied the .class file into the same directory as the .java file)
java -classpath . main.javaI get the following errors:
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Sour
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Metho
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Sourc
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)I'm quite sure that the problem is something I'm simply missing, since Netbeans runs everything without troubles..
Anyone an idea how I could solve this problem? (Trust me, I checked the net, lots of people with this prob, but no decent solutions given)
Thanks in advance (and once again sorry if this thread already existed).
Greetings,
Tribio

Answer 1

Oh, forgot the first error line indeed, thanks for pointing that out.
D:\Tribio\JPF\src\jpf>java -cp . main
Exception in thread "main" java.lan.NoClassDefFoundError: main (wrong name: jpf/Main)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Sour
at java.net.URLClassLoader.defineClass(Unknown Source)
at java.net.URLClassLoader.access$000(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Metho
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Sourc
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)And concerning the package question. In the code of main.java I define the package jpf as follows:
package jpf;Hateful problem, and I so wanna use the prompt java once in a while instead of having to rely on NetBeans..
And you're not at all looking at it too simple, any input on the matter is appreciated.. :)