tomcat-native-1.1.15 has been released last month. Renaming tomcat-native-1.1.14.ebuild worked for me (jdk-1.6.0.07, jakarta-tomcat-6.0.18). The ebuild contains some now useless sed processing, trivial patch will follow.
Created attachment 169050 [details, diff] patch to remove useless sed magic
Bumped. Thank you for the info and the patch.