On Wed, 23 Nov 2022 18:57:03 GMT, Jonathan Gibbons <j...@openjdk.org> wrote:

>> Please review a "somewhat automated" change to insert `@spec` tags into doc 
>> comments, as appropriate, to leverage the recent new javadoc feature to 
>> generate a new page listing the references to all external specifications 
>> listed in the `@spec` tags.
>> 
>> "Somewhat automated" means that I wrote and used a temporary utility to scan 
>> doc comments looking for HTML links to selected sites, such as `ietf.org`, 
>> `unicode.org`, `w3.org`. These links may be in the main description of a doc 
>> comment, or in `@see` tags. For each link, the URL is examined, and 
>> "normalized", and inserted into the doc comment with a new `@spec` tag, 
>> giving the link and tile for the spec.
>> 
>> "Normalized" means...
>> * Use `https:` where possible (includes pretty much all cases)
>> * Use a single consistent host name for all URLs coming from the same spec 
>> site (i.e. don't use different aliases for the same site)
>> * Point to the root page of a multi-page spec
>> * Use a consistent form of the spec, preferring HTML over plain text where 
>> both are available (this mostly applies to IETF specs)
>> 
>> In addition, a "standard" title is determined for all specs,  determined 
>> either from the content of the (main) spec page or from site index pages.
>> 
>> The net effect is (or should be) that **all** the changes are to just 
>> **add** new `@spec` tags, based on the links found in each doc comment. 
>> There should be no other changes to the doc comments, or to the 
>> implementation of any classes and interfaces.
>> 
>> That being said, the utility I wrote does have additional abilities, to 
>> update the links that it finds (e.g. changing to use `https:` etc,) but 
>> those features are _not_ being used here, but could be used in followup PRs 
>> if component teams so desired. I did notice while working on this overall 
>> feature that many of our links do point to "outdated" pages, some with 
>> eye-catching notices declaring that the spec has been superseded. 
>> Determining how, when and where to update such links is beyond the scope of 
>> this PR.
>> 
>> Going forward, it is to be hoped that component teams will maintain the 
>> underlying links, and the URLs in `@spec` tags, such that if references to 
>> external specifications are updated, this will include updating the `@spec` 
>> tags.
>> 
>> To see the effect of all these new `@spec` tags, see 
>> http://cr.openjdk.java.net/~jjg/8296546/api.00/
>> 
>> In particular, see the new [External 
>> Specifications](http://cr.openjdk.java.net/~jjg/8296546/api.00/external-specs.html)
>>  page, which you can also find via the new link near the top of the 
>> [Index](http://cr.openjdk.java.net/~jjg/8296546/api.00/index-files/index-1.html)
>>  pages.
>
> Jonathan Gibbons has updated the pull request incrementally with one 
> additional commit since the last revision:
> 
>   Remove updates from unexported files

src/java.se/share/classes/module-info.java line 39:

> 37:  *
> 38:  * @spec jdwp/jdwp-spec.html Java Debug Wire Protocol
> 39:  * @spec jni/index.html Java Native Interface Specification

One thing that that bothers me a bit here is that the JNI and JDWP specs will 
be listed as "External Specifications" in the generated javadoc. This heading 
is appropriate for RFCs and other standards that we reference but seems 
misleading for specifications that are part of Java SE. Has this come up 
already?

-------------

PR: https://git.openjdk.org/jdk/pull/11073

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