Android :: SSL Certificate HTTPClient

I had configure a Tomcat webserver with SSL and client autification. So I need a clienKey.p12 File to visit the site. If I import the key into Firefox, it works fine.

So I tried to develop a Client from "normal" Java. That works:

CODE:..........

Now I try to develope a Client into Android and I am getting crazy....

Here my two Android implementation:

CODE:...........

I always geht the following Exception:

CODE:................

But the key is the same that I use for the "normal" java Client and for the import into firefox. So the key is valid. But it is signed by me... I don't want to sign it by a commercial Company like verisign.