On Fri, 7 Aug 2026 14:39:30 GMT, Shiv Shah <[email protected]> wrote:

>> The failure handler keys each HTML section id by the command's name path, so 
>> when a command name occurs again after an intervening command - the same 
>> command repeated, or the same top-level tool reused, as in 
>> "jcmd.compiler.codecache jinfo jcmd.compiler.codelist" - a second section 
>> with the same id is written. Anchors and the data-toggle / data-show 
>> javascript resolve ids via document.getElementById, which returns the first 
>> match, so the later occurrence's output is unreachable. These are the two 
>> cases reported in the bug.
>> 
>> Fix: the root section keeps a registry of issued ids; a repeated id gets the 
>> first free numeric suffix ("jcmd-2", ...). Displayed names are unchanged, 
>> adjacent commands with a shared prefix still share their sections, children 
>> of a suffixed section are unique automatically, and the registry also 
>> prevents collisions with a command literally named like a suffix. The only 
>> external id reconstruction, ToolKit.link(), is keyed by PID and unaffected.
>> 
>> Ids can still repeat across appended fragments (each invocation appends a 
>> complete HTML document); that is pre-existing and tracked as JDK-8389541.
>> 
>> 
>> 
>> ---------
>> - [x] I confirm that I make this contribution in accordance with the 
>> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai).
>
> Shiv Shah has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Remove bug id from comment and always initialize sectionIds

Marked as reviewed by lmesnik (Reviewer).

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

PR Review: https://git.openjdk.org/jdk/pull/32157#pullrequestreview-4885086528

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