The file that you can download from the given location to install sun-jaf-bin is now called jaf-1_0_2-upd2.zip instead of jaf-1_0_2-upd.zip. The digest ist db4ce2211ab4fa669e5aa3a42bdbdfe7. Installation seems to work without further changes to the ebuild.
*** This bug has been marked as a duplicate of 93807 ***