[wtp-releng] Reverted Xerces 2.9 to 2.8 for right now

[David M Williams <david_williams@xxxxxxxxxx>]

We (well, Valentin) discovered the JUnit
problem were due to Xerces 2.9, and in fact discovered there is not a problem
with Sun's VM, but there is with IBM's VM (which is what we happen to use
in our JUnit tests). 

The problem is with some of the new
"transformer" (serialization) stuff that is new in 2.9. Apparently
IBM's JRE has an "early" version of the same stuff, and the class
loader is getting "mixed up" on which to use from where. (Whereas
Sun's VM doesn't have it at all, so there is no ambiguity or chance for
confusion). 

And ... I think if OSGi was working
as I thought it did, then it shouldn't be a problem .... so, I'd like to
step back, and take a good look, to make sure something else isn't wrong.
At the worst, we may have to change some of our source code to work with
the new version ... but, hopefully that won't be required.  In the
meantime, I wanted to simplify this week's I-build and testing and just
go with what we had. 

I've reopened bug
185839 to track resolution of
this issue, and am developing a simple test case to illustrate the issue.


Thanks,