How to create a new custom tag in JSF 1.2

Hi there,
In JSF 1.2, all the classes (CommandButtonTag, CommandLinkTag, DataTableTag,...) in package com.sun.faces.taglib.html_basic are defined as final class. In JSF 1.1, we can create a custom tag that extends the tag in JSF taglib; it save us lots of time.
Could anybody know how to create a new custom tag in JSF 1.2?
Many thanks,
Emily

If I recall, it was done because how tags were to be handled in 1.2 was very different from 1.1 and it was felt that developers shouldn't rely on implementation specific classes (unless they were SPI) for several other reasons (application portability being the big one here).
If it's felt that this was the wrong decision, please feel free to log an issue [1] against the RI (to date, no one has).
As to the 'borked' dependency URLs, please log an issue [1] if you find these. We have nightly builds going that work from a clean workspace and checking today's result, it seems ok.
[1] https://javaserverfaces.dev.java.net/issues

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