[wtp-dev] Direction on using installable runtime extensions

[raccah@xxxxxxxxxxxx]

I found this:
<http://help.eclipse.org/help33/index.jsp?topic=/org.eclipse.wst.doc.isv/reference/extension-points/server/org_eclipse_wst_server_core_installableRuntimes.html>

which warns that it's an interim API and subject to change....

My questions:
1) Am I correct in interpreting the purpose of this extension to allow a 
plugin developer a way to install a runtime (like an application server) 
and not just a feature or plugin?  The structure of the attributes and 
an example site.xml I found leave me unsure.

2) If yes, what is the stability of this API now?  Does the interim API 
warning mean that it's best I don't use it or just that there may be 
some minor changes before the final release?

3) The examples in the page don't use URLs, but when I tried with a 
path, I just got an error like invalid URL.  So, since I'm trying to 
test one of these locally, I tried using a file:/// url.  Apparently, I 
still don't have all the path components right and debugging gets me to 
the source of InstallableRuntimeDecorator (in jst), but not 
InstallableRuntime (in wst).  Being an eclipse newbie, I'm not sure how 
to rectify that.  I believe I need to download the source from somewhere 
and configure it to be used in my debugging session, but could not find 
the right jar on the download site or the right option to configure. 
Can someone point me in the right direction?

4) Finally, the default wizard page contains "Application Server 
Directory" with Browse and the Install Server button which also pops up 
a Choose Directory dialog.  Why is this information gathered twice?

Thanks!
Rochelle