[8u40] Review request 8064667: Provide support to help identify use of endorsed standards and extension mechanism

[Mandy Chung]

Updated webrev:
http://cr.openjdk.java.net/~mchung/jdk8u/webrevs/8064667/webrev.01/

This addresses Calvin's comment.  It now keeps a list of the jar files 
shipped with jre/lib/ext and determine if jre/lib/ext has any other 
non-JDK jar files installed.

Mandy

On 11/17/2014 8:57 AM, Mandy Chung wrote:
> This requests both code review and 8u40 approval for:
>    https://bugs.openjdk.java.net/browse/JDK-8064667
>
> Webrev:
> http://cr.openjdk.java.net/~mchung/jdk8u/webrevs/8064667/webrev.00/
>
> JEP 220 [1] proposes to remove the endorsed standards override 
> mechanism and extension mechanism. This patch adds a VM flag in 8u40 
> to help identify any existing uses of these mechanisms so that users 
> can turn on the VM flag to help identify if they depend on the 
> endorsed standards override mechanism and extension mechanism and can 
> plan to prepare for the migration to a newer JDK release early on. 
> When -XX:+CheckEndorsedAndExtDirs is set, the VM will exit if the 
> system property -Djava.endorsed.dirs or -Djava.ext.dirs is set, or if 
> ${java.home}/lib/endorsed or ${java.home}/lib/ext exists, or any 
> system extension directory contains JAR files.
>
> Thanks
> Mandy
> [1] http://openjdk.java.net/jeps/220
>
>
>