The ebuild needs to be updated to build the packages from source
Created attachment 44438 [details] fesi-1.1.8.ebuild this ebuild does the trick. it's also a version bump. to get the sources i installed them using the original gui installer available at 'http://www.lugrin.ch/fesi'. this was a pretty unusable solution for the portage tree because we dont want a gui installer, do we? ... i removed installer related things. the sources can be found here, it seems that we have to mirror them: http://the-luckyduck.de/~lucky/fesi-1.1.8.tar.bz2
Created attachment 44439 [details, diff] fesibuild.patch patches the build.xml and includes a build.properties file, it also adds target="1.3" and source="1.3" to the javac node. the next things is it does a trivial change in renaming a file which prevented fesi to be compiled successfull.
Created attachment 44441 [details, diff] fesibuild.patch just corrected a little error inside of Version.java.
Fixed. Available for testing as dev-java/fesi-1.1.8