RFR: version specific class file parser and verifier fixes

[Harold David Seigel]

Hi Mandy,

Thanks for looking at this.

Go ahead and push your patch first.

I'll then update my patch with needed 
jdk.internal.reflect.ClassFileAssembler::emitMagicAndVersion changes.

Harold


On 7/18/2018 4:31 PM, mandy chung wrote:
> Looks good.
>
> jdk.internal.reflect.ClassFileAssembler::emitMagicAndVersion will
> need to be updated too after I push the fix for JDK-8207790. We
> can follow up separately depending on which patch goes first.
>
> Mandy
>
> On 7/18/18 11:43 AM, Harold David Seigel wrote:
>> Hi,
>>
>> Please review this LWorld change to ignore the ValueTypes attribute 
>> and value type specific access flags for class file versions < 55.  
>> This fix also includes changes to the verifier to throw VerifyError 
>> exceptions for withfield and defaultvalue opcodes for class file 
>> versions < 55.
>>
>> Open Webrev: http://cr.openjdk.java.net/~hseigel/lworld.cfp_verf/webrev/
>>
>> The changes were tested with various tier1 - tier5 Mach5 tests on 
>> Linux and Mac.
>>
>> Thanks, Harold
>>