External jar question

hi all,
I made a Java application in Eclipse;
in Project - Properties - Build Path - Libraries, I added an external jar to be able to connect to a mysql database.
Now I can execute this application perfectly from Eclipse and on the same machine.
But now I need to put this application on another machine, but when I try to execute the application it gives this error message:
$ java WatchDog
Cannot connect to database serverorg.gjt.mm.mysql.Driver
Exception in thread "main" java.lang.NullPointerException
at Query.truncate(Query.java:304)
at WatchDog.<init>(WatchDog.java:18)
at WatchDog.main(WatchDog.java:131)
I also tried to point to the external jar with the -classpath option like this:
$java -cp "/usr/local/bin/WatchDog/mysql-connector-java-5.0.4/mysql-connector-java-5.0.4-bin.jar" WatchDog
Exception in thread "main" java.lang.NoClassDefFoundError: WatchDog
how can I do this??
grtz
Message was edited by:
dfvdfvdfvxfv

by setting the classpath like that you removed your own classes from the classpath.
Add the directory where those are to be found to the classpath as well.
And of course ALWAYS use packages for your classes.

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First, be kind with my english, i'm french (nobody's perfect...)
I have a JNLP into which i declare a signed jar resource main.jar. This application retreive at execution a list of signed jar names (+a.jar, b.jar+...) that i dynamically load on my need through DownloadService.loadResource. My a.jar, b.jar are cached and it rules! But if i made a new main.jar, a.jar and b.jar, and deploy them on my server, here what's happend:
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So, I finally succed in finding a solution.
But this solution seems perhaps a barbarian way to solve my problem but it works.
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Hello.
I created a jar file like that:
jar -cvf0 WarShell.jar WarShell.class
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:) lutha
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Edited by: Jaumzera on Aug 1, 2008 11:22 AM

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Message was edited by: Bharathwaj R

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I would be thankful if someone could help me with this -
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Edited by: Shiv Khullar on Aug 30, 2010 9:39 PM

Hi Edson,
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Regards,
Sen

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