All of the downloaded test cases fail as they are unable to locate
the "Main-Class" attribute in the manifest file.
This is a regression from beta3.

For example:
java -jar T10.jar
No 'Main-Class' attribute found or JAR file does not exist: T10.jar

more manifest.mf
Manifest-Version: 1.0
Main-Class: T10
Class-Path: ../../../ext/e1/e1.jar ../../../ext/e2/e2.jar ../../../ext/util/util.jar