> MeteoMediaForecastTransform.class.getResourceAsStream("/xsl/my.xsl")));
The value is a URI. If you want it to be interpreted as an absolute URI,
it must include a URI Scheme. Since you want to write to the filesystem,
use the file: scheme... and if this is a Microsoft operating sytem,
probably a drive letter as well:
"file:///C:/xsl/my.xsl"
