How to create a classpath dynamicaly

[Willy Reinhardt]

Hi, 
I have an ant task which create and copy jar files into a structure of
directories. Next to this task I would create dynamically a property
which is the classpath use as token for the script to start the
application. 
Use like: 
java -cp @unix-classpath@ -jar org.toto.Main 

Is an ant task help me for that ? 

Thanks for your help 

Willy