JEP 247: Compile for Older Platform Versions

Remi Forax forax at
Sat May 2 14:02:58 UTC 2015

On 04/24/2015 12:30 AM, mark.reinhold at wrote:
> New JEP Candidate:
> - Mark

Hi all,
while i think the goal of this JEP is fine,
i don't like the fact that the solution is based on ct.sym.

We already have a format which is able to describe the public API of a 
class, it's the class file format, this format is already specified, 
well understood by existing tools, which is compact (pack200 ?), the 
only missing information is the version that add and/or remove a member 
(since and deleted since) that can be added as class file attribute.


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