[8u20] Request for approval: 8039358: com.sun.jarsigner.ContentSignerParameters.getTSAPolicyID() should be a default method

[Wang Weijun]

Hi All 

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

8039358: com.sun.jarsigner.ContentSignerParameters.getTSAPolicyID() should be a default method

   https://bugs.openjdk.java.net/browse/JDK-8039358

The bug is about making a newly added interface method in JDK 8 to be default for binary compatibility.

The fix is already included in jdk9 as: 

   http://hg.openjdk.java.net/jdk9/dev/jdk/rev/4c712155f7c9

The review thread was 

   http://mail.openjdk.java.net/pipermail/security-dev/2014-April/010410.html

The patch for jdk8u-dev is identical to the one in jdk9.

The fix is minimal-risk. New regression test added.

Thanks 
Weijun