XSLTInputHandler with URLs

How can I use an org.apache.fop.apps.XSLTInputHandler with URLs as 
parameters, hence something of the form

inputHandler = new .XSLTInputHandler(new URL(
"http://www.xyz.de/../LMML.xml"),new 
URL("http://www.xyz.de/../LMMLtoFOP.xsl"));


The XSLTInputHandler constructor only allows two files (different from the 
org.apache.fop.apps.FOInputHandler, which allows an URL, but doesn't 
transform). 


Can anyone help ?

Regards

Winfried Reiss