A mi me funciona y tengo:
dev-java/java-config
Latest version available: 1.2.6
Latest version installed: 1.1.8-r1
Size of downloaded files: 12 kB
Homepage: http://www.gentoo.org/
Description: Java enviroment configuration tool
y
dev-java/blackdown-jdk
Latest version available: 1.4.1
Latest version installed: 1.4.1
Size of downloaded files: 118,889 kB
Homepage: http://www.blackdown.org
Description: Blackdown Java Development Kit 1.4.1
Todo funciona de lo lindo.
dev-java/java-config
Latest version available: 1.2.6
Latest version installed: 1.1.8-r1
Size of downloaded files: 12 kB
Homepage: http://www.gentoo.org/
Description: Java enviroment configuration tool
y
dev-java/blackdown-jdk
Latest version available: 1.4.1
Latest version installed: 1.4.1
Size of downloaded files: 118,889 kB
Homepage: http://www.blackdown.org
Description: Blackdown Java Development Kit 1.4.1
Todo funciona de lo lindo.