There is indeed a problem with Java software detection, I installed my 32Bit Java7 to version 25 and it’s reported by Avast as .16 with .17 update available. AFAIR I installed Java 7 v25 64Bit new but yet the same versions reported by Avast. I don’t know if the Problem is within Avast or whether Oracle issued a newer build shortly after original release of version 25.