This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
I'm afraid I don't understand the problem. There's nothing in MyEclipse that stops you from creating a file called validation.xml in WEB-INF/ and populating it, right? Can you elaborate on the problem?