I just made a minor change to the JCE makefiles. I forgot to have it reviewed by you, sorry! Fortunately the changes are very minor.
http://hg.openjdk.java.net/jdk8/tl/jdk/rev/940c8cc5a5c4 1. I'm adding the missing Manifest file to several of the JCE jar files.2. Changing the string stored in the manifest file from $RELEASE to $JDK_VERSION
Brad