This is more of a suggestion for a software update than anything else. Java has stopped using their 6.xx software and is now using 7.xx. If it hasn’t been addressed with an avast software update, please do so.
The more important question is do you really need JAVA at all ?
e.g. do you have an application/s that require JAVA or do you have to visit a site/s that require JAVA. If you can answer no or you don’t know if you need it, then the likelihood is that you don’t need JAVA.
So rather than update from JAVA 6 to 7 check if you really need it.
In due course the avast software updater would be aware of no further JAVA 6 updates.
Also it is know that when uninstalling Oracle is sloppy, see what I reported here: http://forum.avast.com/index.php?topic=129271.msg965969#msg965969
My advice is as DavidR’s, when there is no absolute need for java in the browser etc. (for instance online banking applications etc.) and you can do without it, take it off of your comp.
polonus