Candidates:

dev-java/sun-jdk
dev-java/hp-jdk-bin/
dev-java/diablo-jdk/
dev-java/ibm-jdk-bin/
dev-java/ibm-jre-bin/
dev-java/soylatte-jdk-bin/

Content as of 20/03/2015:

dev-java/diablo-jdk/:
total 28
-rw-r--r-- 1 patrice patrice 2668 Nov 30  2013 ChangeLog
drwxr-xr-x 2 patrice patrice 4096 Dec 15 09:09 CVS
-rw-r--r-- 1 patrice patrice 4661 Nov 30  2013 diablo-jdk-1.6.0.07.02.ebuild
drwxr-xr-x 3 patrice patrice 4096 Dec 10 15:43 files
-rw-r--r-- 1 patrice patrice 2307 Nov 30  2013 Manifest
-rw-r--r-- 1 patrice patrice  291 Aug  8  2008 metadata.xml

dev-java/hp-jdk-bin/:
total 28
-rw-r--r-- 1 patrice patrice  553 Jan 11  2010 ChangeLog
drwxr-xr-x 2 patrice patrice 4096 Dec 15 09:09 CVS
drwxr-xr-x 3 patrice patrice 4096 Dec 10 15:43 files
-rw-r--r-- 1 patrice patrice 4664 Jan 11  2010 hp-jdk-bin-1.6.0.05.ebuild
-rw-r--r-- 1 patrice patrice 1896 Jul  5  2012 Manifest
-rw-r--r-- 1 patrice patrice  289 Sep 23  2011 metadata.xml

dev-java/ibm-jdk-bin/:
total 96
-rw-r--r-- 1 patrice patrice 40348 Nov  2 08:18 ChangeLog
drwxr-xr-x 2 patrice patrice  4096 Dec 15 09:09 CVS
drwxr-xr-x 3 patrice patrice  4096 Dec 10 15:43 files
-rw-r--r-- 1 patrice patrice  9848 May 16  2014 ibm-jdk-bin-1.6.0.9_p1.ebuild
-rw-r--r-- 1 patrice patrice  9812 Nov  2 08:18 ibm-jdk-bin-1.6.0.9_p2.ebuild
-rw-r--r-- 1 patrice patrice  9861 Nov  2 08:18 ibm-jdk-bin-1.6.0.9_p2-r1.ebuild
-rw-r--r-- 1 patrice patrice  5666 Nov  2 08:18 Manifest
-rw-r--r-- 1 patrice patrice   310 Aug  8  2008 metadata.xml

dev-java/ibm-jre-bin/:
total 72
-rw-r--r-- 1 patrice patrice 27247 Nov  2 08:19 ChangeLog
drwxr-xr-x 2 patrice patrice  4096 Dec 15 09:09 CVS
drwxr-xr-x 3 patrice patrice  4096 Dec 10 15:43 files
-rw-r--r-- 1 patrice patrice  6515 May 16  2014 ibm-jre-bin-1.6.0.9_p1.ebuild
-rw-r--r-- 1 patrice patrice  6479 Nov  2 08:19 ibm-jre-bin-1.6.0.9_p2.ebuild
-rw-r--r-- 1 patrice patrice  6442 Nov  2 08:19 ibm-jre-bin-1.6.0.9_p2-r1.ebuild
-rw-r--r-- 1 patrice patrice  4408 Nov  2 08:19 Manifest
-rw-r--r-- 1 patrice patrice   157 Jul 15  2006 metadata.xml

dev-java/soylatte-jdk-bin/:
total 28
-rw-r--r-- 1 patrice patrice  818 Oct 30  2012 ChangeLog
drwxr-xr-x 2 patrice patrice 4096 Dec 15 09:09 CVS
drwxr-xr-x 3 patrice patrice 4096 Dec 10 15:43 files
-rw-r--r-- 1 patrice patrice 3697 Oct 30  2012 Manifest
-rw-r--r-- 1 patrice patrice  251 Sep 29  2012 metadata.xml
-rw-r--r-- 1 patrice patrice 2971 Sep 29  2012 soylatte-jdk-bin-1.0.3.ebuild
-rw-r--r-- 1 patrice patrice 2582 Oct 30  2012 soylatte-jdk-bin-7.ebuild

dev-java/sun-jdk:
total 96
-rw-r--r-- 1 patrice patrice 65115 Feb 11 13:22 ChangeLog
drwxr-xr-x 2 patrice patrice  4096 Feb 11 13:22 CVS
drwxr-xr-x 3 patrice patrice  4096 Dec 10 15:43 files
-rw-r--r-- 1 patrice patrice  7715 Feb 11 13:22 Manifest
-rw-r--r-- 1 patrice patrice   501 Jul 23  2012 metadata.xml
-rw-r--r-- 1 patrice patrice  8196 May 16  2014 sun-jdk-1.6.0.45.ebuild