The rt.jar and jsse.jar (others?) never got its MANIFEST.MF Specification-Version number updated. This is a build issue, and should be addressed for 8.

Manifest-Version: 1.0^M
Implementation-Vendor: Oracle Corporation^M
Implementation-Title: Java Runtime Environment^M
Implementation-Version: 1.8.0-ea^M
Specification-Vendor: Oracle Corporation^M
Created-By: 1.7.0_07 (Oracle Corporation)^M
Specification-Title: Java Platform API Specification^M
Specification-Version: 1.7^M

Some of the possible others:

jfr.jar
jsse.jar
resources.jar
Security jars: jce.jar/sunjce_provider.jar/sunpkcs11.jar/sunmscapi.jar