Something wrong with jar?

Question

Hi,
I have the following problem when I want to execute my Jar file.
The command I use is:
java -cp . -jar Drain.jar
the error:
Exception in thread "main" java.lang.NoClassDefFoundError: Drain
My jar file contains 3 classes (1 public i.e. Drain.class) Drain.class has the main method. If I dont pack the files into a jar and just submit the command:
java Drain (CLASSPATH omitted)
Everything is cool the app works!
I create the jar file with the following contents in the manifest file
Main-Class: Drain
Class-Path: C:\Program Files\jaf-1.0.2\activation.jar C:\Program Files\javamail\javamail-1.3.3\mail.jar C:\Program Files\javamail\javamail-1.3.3\lib\imap.jar C:\Program Files\Microsoft SQL Server 2000 Driver for JDBC\lib\msbase.jar C:\Program Files\Microsoft SQL Server 2000 Driver for JDBC\lib\mssqlserver.jar C:\Program Files\Microsoft SQL Server 2000 Driver for JDBC\lib\msutil.jar
with the command:
jar cmf Manifest.txt Drain.jar *.class
The jar is created but on execution it raises the NoClassDefFound error.
Any suggestions?

Answer 1

three classes
PopupAuthenticator.class
ByteArrayDataSource.class
Drain.class
the contents of MANIFEST.MF after unpacking it are:
Manifest-Version: 1.0
Class-Path: C:\Program Files\jaf-1.0.2\activation.jar;C:\Program Files
\javamail\javamail-1.3.3\mail.jar;C:\Program Files\javamail\javamail-
1.3.3\lib\imap.jar;C:\Program Files\Microsoft SQL Server 2000 Driver
for JDBC\lib\msbase.jar;C:\Program Files\Microsoft SQL Server 2000 Dr
iver for JDBC\lib\mssqlserver.jar;C:\Program Files\Microsoft SQL Serv
er 2000 Driver for JDBC\lib\msutil.jar;
Created-By: 1.5.0_04 (Sun Microsystems Inc.)
Main-Class: Drain
the ; as a separator is there because I tried (this time ) to define the class-path in that manner. The funny thing is that the order of the headers is different than the examples I encountered in this forum. I.e. Class-path is here before Main-Class
Man I'm going nuts over this one.