Is Tomcat 4's jsp:plugin tag hardwired to 1.2?

Is Tomcat 4's <jsp:plugin > tag hardwired to version 1.2 of the JPI?
I was absolutely horrified today at a job interview when, proudly navigating to the page containing the 1.4-demanding applet I embedded in the page using <jsp:plugin ...> the plugin installation dialogue came up -- asking whether they wanted to install the 1.2 plugin (up until recently, I had the applet's object tag embedded manually... switching to jsp:plugin was fairly recent).
As it turns out, the <object> tag generated by Tomcat was specifying the download path for the 1.2 plugin, even though I specified jreversion="1.4" in the <jsp:plugin> tag:
<OBJECT
   classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
   name="theApplet"
   width="550" 
   height="400" 
   align="middle" 
   codebase="http://java.sun.com/products/plugin/1.2.2/jinstall-1_2_2-win.cab#Version=1,2,2,0">The "clsid" value can be changed in web.xml by changing the jsp servlet's "ieClassId" initParam, but as far as I can tell there's NO mechanism for changing the "codebase" value anywhere.
Is the <jsp:plugin> tag (under Tomcat 4, at least) just useless for Applets that must have 1.4, or is there a configuration parameter somewhere to set the "codebase" value generated by the tag?
I know I could always put the manually-specified code back in, but I'd prefer to stay with the <jsp:plugin> tag if possible just because it makes the jsp source cleaner. What's strange is that nobody seems to have complained about that problem on the usual places (Usenet/dejanews/Google, jguru.com, etc). Whether that's just because nobody writes applets that actually demand 1.4, or whether everybody who does just embeds the <object> tag manually, I'm not sure.
In any case, I'm trying to figure out how to make <jsp:plugin> generate the right HTML for 1.4-using applets... or whether it's even possible.

Sigh. I found it. It's actually specified as the "iepluginurl" property of the <jsp:plugin> tag.
<emotion:frustration variation="anger">
Now I just need to figure out what *$%!# value to use for it.
The JPI's developer guide has to be the worst document I've ever seen from Sun. Normally, Sun's documents are good. Often, exceptionally so. But the JPI guide... well, after reading http://java.sun.com/j2se/1.4.1/docs/guide/plugin/developer_guide/using_tags.html multiple times, I'm still not sure what #$%^&* URL corresponds to "The newest released JPI equal to or newer than 1.4.0". The only URL on the whole page that they even imply works is hardwired to 1.4.0, and in the same breath they imply that every other codebase URL on the page is wrong, hypothetical, and shouldn't be used... oh, and for that matter, the 1.4_0 one shouldn't really be used ether, because it might change in the future. Grrrrr.
If there's a pattern to the following URLs (all used on the same page) that's supposed to illustrate something besides abyssmally bad editing and apparent indecision, I haven't seen it yet:
http://java.sun.com/products/plugin/autodl/jinstall-1_4-windows-i586.cab#Version=1,4,0,0
http://java.sun.com/products/plugin/1.4/jinstall-14-win32.cab#Version=1,4,0,mn
http://java.sun.com/products/plugin/autodl/jinstall-1_4-windows-i586.cab#Version=1,4,1,mn
http://java.sun.com/products/plugin/autodl/jinstall-1_4_0-win.cabHmmm. Let's see here. They're all the same up to http://java.sun.com/products/plugin, but from that point one diverges into /1.4/, while the others continue into /autodl/. But even past that point, two imply that the filename follows the pattern jinstall-1_4-windows-i586.cab#Version=1,4,x,* ... but whether developers who really, truly, don't care about the specific maintenance release should use "0" or "mn" is left up in the air.
Furthermore, the ONE URL on the entire page that they come halfway close to implying will work is the last one I listed above, which itself goes totally against whatever hypthetical pattern they were trying to imply with the other three. For now I'll probably stick the last one listed as the parameter because it's the only one they actually come out and say will work, but I suspect the first one is probably the "right" one.
Of course, there's always the matter of Macintosh users running IE. Or Windows users running Mozilla (which is technically Netscape, but uses MSIE ActiveX plugins). Does Mozilla get fed the value of "iepluginurl", or the value of "nspluginurl"? Sigh.
</emotion:frustration>

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