I could't to make a build product using p2 for mac for a long time.But I solved the issue on my build product.It's easy hack!
The point is it is wrong to export using normal delta pack.So I added a file at Eclipse.app's same path.
I added a file at delta pack's include "Eclipse.app" directory like below.
/bin/carbon/macos/x86
+Eclipse.app
+test.txt
It's fine to build my product!Cheers!
