Andy reported this problem on the jdo-user alias on 23 July 2008:
why does jdo2.jar include the file "API2.MF" ? Yes this file should be put
into the jar as the MANIFEST.MF but not also included in its own right.
There's a block in project.xml that includes it - I suggest that needs
He checked in a fix for trunk api2 and api2-legacy with revision 679353.
The fix needs to be merged to the 2.1.1 branch for inclusion in a bug-fix release.