[8u-dev] Request for approval: 8058657: Add @jdk.Exported to com.sun.jarsigner APIs

[Wang Weijun]

Hi All 

This is a request to backport a jdk9 fix into jdk8u-dev. 

   8058657: Add @jdk.Exported to com.sun.jarsigner APIs
   https://bugs.openjdk.java.net/browse/JDK-8058657

The whole com.sun.jarsigner package was approved to be an exported interface in JDK-4500302, but we forgot to add a @jdk.Exported annotation to an com.sun.jarsigner.ContentSigner. 

The fix is already included in jdk9 as: 

   http://hg.openjdk.java.net/jdk9/dev/jdk/rev/26f5599e46d8

The review thread was 

   http://mail.openjdk.java.net/pipermail/security-dev/2014-September/011263.html

The patch for jdk8u-dev is identical to the one in jdk9 (except for the module name part).

Thanks 
Weijun