How do I use my own JavaClass???

Hi

I saw, that is possible to use Java Classes from the official Java API
with
the following Syntax:

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:javaMath="http://xml.apache.org/xslt/java"
xmlns:lxslt="http://xml.apache.org/xslt">

<lxslt:component prefix="Koordpool" functions="cos sin">
<lxslt:script lang="javaclass" src="class:java.lang.Math"/>
</lxslt:component>

So but I'd like to work with my own Java Class I've written. But I have no
idea how to implement it.

greets Cyrill