Getting: javax.jnlp.UnavailableServiceException: uninitialized

Hi community!

I have a Problem with my WebStart Application:

When i make this part of code:

try{

PersistenceService ps;

BasicService bs;

ps = (PersistenceService)ServiceManager.lookup("javax.jnlp.PersistenceService");

bs = (BasicService)ServiceManager.lookup("javax.jnlp.BasicService");

System.out.println(bs.getCodeBase());

}catch (UnavailableServiceException e){

// TODO Auto-generated catch block

e.printStackTrace();

}

At the line ps = ....

i get the Exception javax.jnlp.UnavailableServiceException: uninitialized

Why?

Thx a lot

[891 byte] By [Deficiency1984a] at [2007-11-27 1:28:31]