root@osage ~ # emerge -uD1 ant-junit

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Calculating dependencies ... done!
>>> Verifying ebuild manifests
>>> Starting parallel fetch
>>> Jobs: 0 of 2 complete, 1 running                Load avg: 0.24, 0.10, 0.05
>>> Emerging (1 of 2) dev-java/ant-core-1.8.1
>>> Jobs: 0 of 2 complete, 1 running                Load avg: 0.24, 0.10, 0.05
>>> Failed to emerge dev-java/ant-core-1.8.1, Log file:
>>> Jobs: 0 of 2 complete, 1 running                Load avg: 0.22, 0.10, 0.05
>>>  '/var/log/portage/dev-java:ant-core-1.8.1:20100523-005423.log'
>>> Jobs: 0 of 2 complete, 1 running                Load avg: 0.22, 0.10, 0.05
>>> Jobs: 0 of 2 complete, 1 running, 1 failed      Load avg: 0.22, 0.10, 0.05
>>> Jobs: 0 of 2 complete, 1 failed                 Load avg: 0.22, 0.10, 0.05

 * CPV:  dev-java/ant-core-1.8.1
 * REPO: gentoo
 * USE:  amd64 elibc_glibc kernel_linux multilib userland_GNU
!!! ERROR: Package ant-junit was not found!
 * Unable to determine VM for building from dependencies:
NV_DEPEND: >=virtual/jdk-1.4
	!dev-java/ant-tasks
	!dev-java/ant-optional  >=dev-java/java-config-2.1.9-r1  source? ( app-arch/zip ) 
	
	
	>=dev-java/javatoolkit-0.3.0-r2
 * ERROR: dev-java/ant-core-1.8.1 failed:
 *   Failed to determine VM for building.
 * 
 * Call stack:
 *             ebuild.sh, line   48:  Called pkg_setup
 *             ebuild.sh, line 1346:  Called java-pkg-2_pkg_setup
 *     java-pkg-2.eclass, line   63:  Called java-pkg_init
 *   java-utils-2.eclass, line 2126:  Called java-pkg_switch-vm
 *   java-utils-2.eclass, line 2550:  Called die
 * The specific snippet of code:
 *   				die "Failed to determine VM for building."
 * 
 * If you need support, post the output of 'emerge --info =dev-java/ant-core-1.8.1',
 * the complete build log and the output of 'emerge -pqv =dev-java/ant-core-1.8.1'.
!!! When you file a bug report, please include the following information:
GENTOO_VM=  CLASSPATH="" JAVA_HOME=""
JAVACFLAGS="" COMPILER=""
and of course, the output of emerge --info
 * The complete build log is located at '/var/log/portage/dev-java:ant-core-1.8.1:20100523-005423.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-java/ant-core-1.8.1/temp/die.env'.
 * S: '/var/tmp/portage/dev-java/ant-core-1.8.1/work/apache-ant-1.8.1'

 * IMPORTANT: 1 news items need reading for repository 'gentoo'.
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