>>> checking ebuild checksums ;-)
>>> checking auxfile checksums ;-)
>>> checking miscfile checksums ;-)
>>> checking lucene-1.4.3-src.tar.gz ;-)
 * Enabling generation-2 compatibility ...
 * There was a problem determining which VM to use for Generation-1
 * See the list of available VMs by using: java-config-1 -L
 * Then select on of those by using: java-config-1 -S <selected vm>
 * And once that is done, run: env-update && source /etc/profile
 * Then to continue the emerge: emerge --resume                                                                                                                                                                          [ !! ]

!!! ERROR: dev-java/lucene-1.4.3 failed.
Call stack:
  ebuild.sh, line 1555:   Called dyn_setup
  ebuild.sh, line 668:   Called pkg_setup
  ebuild.sh, line 1248:   Called java-pkg_pkg_setup
  java-pkg.eclass, line 47:   Called die

!!! Couldn't determine VM for generation-1
!!! If you need support, post the topmost build error, and the call stack if relevant.