RFR(XS) 8148785: Update class file version to 53 for JDK-9

[harold seigel]

Hi Alan,

Thanks for looking at the change.   I'll drop the comment before 
checking it in.

Harold

On 2/3/2016 9:32 AM, Alan Bateman wrote:
>
>
> On 03/02/2016 14:12, harold seigel wrote:
>> Hi Aleksey,
>>
>> Thanks for the review.  The plan is to first change the runtime to 
>> accept version 53 files and then change the tools to generate them. 
>> Hopefully, this will reduce incompatibility problems.  See 
>> JDK-8148651 <https://bugs.openjdk.java.net/browse/JDK-8148651> for 
>> details.
> Right, there are several things that need to happen and I think we 
> need hotspot accepting 53.0 before javac starts to generate them.
>
> The webrevs look okay to me, except it might be better to drop "New 
> Module attribute" from the comment in classfileParser.cpp until JSR 
> 376 is further along and we line up the trucks to bring the module 
> system into JDK 9.
>
> -Alan