localhost paavo # java-config-1 -L
[sun-jdk-1.4.2.12] "Sun JDK 1.4.2.12" (/etc/env.d/java/20sun-jdk-1.4.2.12)
[blackdown-jdk-1.4.2.03] "Blackdown JDK 1.4.2.03" (/etc/env.d/java/20blackdown-jdk-1.4.2.03) *
localhost paavo # emerge jython
Calculating dependencies... done!

>>> Emerging (1 of 1) dev-java/jython-2.1-r6 to /
 * jython-2.1.tar.bz2 MD5 ;-) ...                                                                                     [ ok ]
 * jython-2.1.tar.bz2 RMD160 ;-) ...                                                                                  [ ok ]
 * jython-2.1.tar.bz2 SHA1 ;-) ...                                                                                    [ ok ]
 * jython-2.1.tar.bz2 SHA256 ;-) ...                                                                                  [ ok ]
 * jython-2.1.tar.bz2 size ;-) ...                                                                                    [ ok ]
 * checking ebuild checksums ;-) ...                                                                                  [ ok ]
 * checking auxfile checksums ;-) ...                                                                                 [ ok ]
 * checking miscfile checksums ;-) ...                                                                                [ ok ]
 * checking jython-2.1.tar.bz2 ;-) ...                                                                                [ ok ]
 * Using Generation-1 System VM: sun-jdk-1.4