Which VM is your Alfresco server using?

Since the 1.4 preview release (and maybe before that) I’ve suffered from an intermittent error in my local Alfresco install. At seemingly random times the web client crashes with: java.lang.NoSuchMethodError: java.lang.Object.getHibernateLazyInitializer()Lorg/hibernate

Psuedo Guru saved me some troubleshooting time with this post.