!!! ERROR: Package commons-lang was not found!

!!! ERROR: dev-java/poi-3.0 failed.
Call stack:
  ebuild.sh, line 1615:   Called dyn_unpack
  ebuild.sh, line 752:   Called qa_call 'src_unpack'
  ebuild.sh, line 44:   Called src_unpack
  poi-3.0.ebuild, line 44:   Called java-pkg_jar-from 'commons-lang' 'commons-lang.jar' 'commons-lang-2.1.jar'
  java-utils-2.eclass, line 877:   Called die

!!! There was a problem getting the classpath for commons-lang.
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/dev-java/poi-3.0/temp/build.log'.

!!! When you file a bug report, please include the following information:
GENTOO_VM=sun-jdk-1.5  CLASSPATH="" JAVA_HOME="/opt/sun-jdk-1.5.0.07"
JAVACFLAGS="-source 1.4 -target 1.4" COMPILER=""
and of course, the output of emerge --info