Re: Help a newbie please?

Lew <>
Wed, 08 Apr 2009 22:17:40 -0400
SpreadTooThin wrote:

Ok I've figured out what is going on.. Sort of.. At least I can make
my application now, but Its not running.
I had to copy the jar files to /System/Library/Java/Extensions.

Arne Vajh??j wrote:

Not good.


Specify them explicit either to java [sic] command line or to java [sic] ant task.

SpreadTooThin wrote:

However there was a lib sub-directory in the distribution of j2ssh and
I don't know what I was supposed to do with that folder... That
folder contained:


Arne Vajh??j wrote:

They should also be in classpath.

(the good thing is that Java 1.6 supports wildcards for jar files
in classpath !!)

SpreadTooThin wrote:

Now when I run my application:

$>java -jar testsftp.jar

Read the part about the "-jar" option.

I get an error message:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/
    at com.sshtools.j2ssh.SshClient.<clinit>(Unknown Source)
    at testsftp.main(

You need that class in your class path.

I suspect that because there was a jar file in the lib folder that
maybe I needed to copy that lib folder as well?

Arne Vajh??j wrote:

Yes. It can not find commons-logging.jar !

When you use -jar then you should put all the required jar
files in the Class-Path directive in the manifest.


Your JAR should go in a distribution directory specific to your app, not the
extensions folder, not a system folder, not a different application's folder.
  This "lib/" folder of which you speak needs to be a subdirectory of that
application directory, assuming it's referred to as a relative path in the
manifest's Class-Path header and that the other JARs are mentioned there as
Arne advised.

RTFM will help you a lot.


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