localhost kaiser # emerge eclipse-ecj
Calculating dependencies... done!
>>> Verifying ebuild Manifests...

>>> Emerging (1 of 1) dev-java/eclipse-ecj-3.3.0-r1 to /
 * ecjsrc.zip RMD160 ;-) ...                                              [ ok ]
 * ecjsrc.zip SHA1 ;-) ...                                                [ ok ]
 * ecjsrc.zip SHA256 ;-) ...                                              [ ok ]
 * ecjsrc.zip size ;-) ...                                                [ ok ]
 * checking ebuild checksums ;-) ...                                      [ ok ]
 * checking auxfile checksums ;-) ...                                     [ ok ]
 * checking miscfile checksums ;-) ...                                    [ ok ]
 * checking ecjsrc.zip ;-) ...                                            [ ok ]
>>> Unpacking source...
>>> Unpacking ecjsrc.zip to /var/tmp/portage/dev-java/eclipse-ecj-3.3.0-r1/work
 * Applying eclipse-ecj-3.3.0-gcj.patch ...                               [ ok ]
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/dev-java/eclipse-ecj-3.3.0-r1/work ...
 * bootstrapping ecj with javac
* Home for VM 'sun-jdk-1.6' does not exist: /usr/lib/jvm//sun-jdk-1.6
* Invalid System VM: sun-jdk-1.6
 *
 * ERROR: dev-java/eclipse-ecj-3.3.0-r1 failed.
 * Call stack:
 *                     ebuild.sh, line 1687:  Called dyn_compile
 *                     ebuild.sh, line 1025:  Called qa_call 'src_compile'
 *                     ebuild.sh, line   44:  Called src_compile
 *   eclipse-ecj-3.3.0-r1.ebuild, line   50:  Called die
 * The specific snippet of code:
 *      ${javac} $(find org/ -name '*.java') || die "${MY_PN} bootstrap failed!"
 *  The die message:
 *   ecj bootstrap failed!
 *
 * 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/eclipse-ecj-3.3.0-r1/temp/build.log'.
 *
!!! When you file a bug report, please include the following information:
GENTOO_VM=  CLASSPATH="." JAVA_HOME="/etc/java-config-2/current-system-vm"
JAVACFLAGS="" COMPILER=""
and of course, the output of emerge --info

 * Messages for package dev-java/eclipse-ecj-3.3.0-r1:

 *
 * ERROR: dev-java/eclipse-ecj-3.3.0-r1 failed.
 * Call stack:
 *                     ebuild.sh, line 1687:  Called dyn_compile
 *                     ebuild.sh, line 1025:  Called qa_call 'src_compile'
 *                     ebuild.sh, line   44:  Called src_compile
 *   eclipse-ecj-3.3.0-r1.ebuild, line   50:  Called die
 * The specific snippet of code:
 *      ${javac} $(find org/ -name '*.java') || die "${MY_PN} bootstrap failed!"
 *  The die message:
 *   ecj bootstrap failed!
 *
 * 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/eclipse-ecj-3.3.0-r1/temp/build.log'.