> I coppied content of zip file into JAVA_HOME/jre/lib/ext
> I'm using Java 1.4 SE JDK.

I think you have to include the classes explicitly in the class path.
Putting jar files in jre/lib/ext doesn't seem to work. I have never seen
this documented anywhere (or found details about is), but I have had similar
problems.

Joachim Van der Auwera