java-1.4.2-gcj-compat uninstalls sun jre

[seth vidal]

> Basically you have two (ok more than two) packages that serve the same
> purpose (functionnaly the same, very different sets of bugs). Their specs
> provide the same virtuals so people can chose the one they prefer (and
> they are parallel installable)
> 
> On update of one of them yum removes the others.
> 

For more backstory: is there an obsolete in place for any of these?

-sv