Code review request: 8021788: JarInputStream doesn't provide certificates for some file under META-INF

[Weijun Wang]

Please take a look at

   http://cr.openjdk.java.net/~weijun/8021788/webrev.00/
The problem is that the method treats no META-INF entry as normal. If we 
can be sure that MANIFEST.MF and signature-related files are always at 
the beginning, we can safely treat an entry normal when we have done 
with those.

Thanks
Max