JavaAwt

==Ecj problem If you run into problems that your environment has an ecj that does not pass the checks in configure. You might want to try this: To ensure that your Gentoo has the right version of the eclipse compiler First you may have to unmerge the current eclipse-ecj

# emerge --unmerge eclipse-ecj
# cd /etc/portage
# echo ">=dev-java/eclipse-ecj-3.4" >> package.mask
# emerge eclipse-ecj --pretend
# emerge eclipse-ecj

Building Classpath

Got a problem when building classpath: Invalid flag -1.5 Solution found here