I can build dev-java/xmlgraphics-commons-1.2 with icedtea6 despite it is not listed (i.e. I had to include it by hand). Please add the icedtea6 as a valid VM to the ebuild (at least in overlay) Reproducible: Always
This is a bug against xmlgraphics not icedtea6.
The jpeg support only builds with 1.4 JDKS icedtea provides 1.6 APIs so it can't be used to build the jpeg support.
Was too quick in looking at the code. It nows uses java-virtuals/jdk-with-com-sun instead of a hard coded lists.
Marking as fixed.