Reference to a document in the sources

[John Rose]

A blast from the past!  I posted a copy (sampled circa JDK 1.4.2) here:

http://cr.openjdk.java.net/~jrose/jvm/checktype-2001.txt

— John

On Jun 13, 2018, at 6:53 AM, Vladimir Ivanov <vladimir.x.ivanov at oracle.com> wrote:
> 
> The file is located at:
>  hotspot/doc/server-compiler/checktype.txt
> 
> I can trace it till 6u1 and its content matches the article pretty well. Still it'd be nice to have it published on OpenJDK wiki [1].
> 
> Best regards,
> Vladimir Ivanov
> 
> [1] https://wiki.openjdk.java.net/display/HotSpot/Main
> 
> On 13/06/2018 15:55, David Holmes wrote:
>> On 13/06/2018 10:32 PM, Gilles Duboscq wrote:
>>> Hi Ivan,
>>> 
>>> I don't know for sure what that file contains but it's probably very similar to the content of this paper: Fast subtype checking in the HotSpot JVM [1].
>> That seems like a good bet. The comment was added in September 2001 - by Cliff Click.
>> I can't find any trace of the actual file though.
>> Cheers,
>> David
>>>   Gilles
>>> 
>>> [1]: https://dl.acm.org/citation.cfm?id=583821
>>> 
>>> On 13/06/18 14:20, Ivan Krylov wrote:
>>>> Hi all,
>>>> 
>>>> In the sources for klass.hpp [1] there is a reference to some discussion
>>>> 
>>>> // The fields _super_check_offset, _secondary_super_cache, _secondary_supers
>>>> // and _primary_supers all help make fast subtype checks. See big discussion
>>>> // in doc/server_compiler/checktype.txt
>>>> 
>>>> This reference is present in JDK 11 latest sources however this comment dates back to as far as I can trace (1.7).
>>>> I assume this link is to some internal wiki page. Is it possible to make it publicly visible somehow? It is understood that the content is likely to be outdated.
>>>> 
>>>> Thanks,
>>>> Ivan
>>>> 
>>>> [1] - http://hg.openjdk.java.net/jdk/jdk/file/7bf4f1b5e438/src/hotspot/share/oops/klass.hpp#l105 
>>>> 
>>>> 
>>>> 
>>>>