it's kindof hard to completely ignore Java's OO features when you have to write all your code in classes, and explicitly type your "main" as "public static". ;-)
what exactly is "OO" will likely be debated forever. i like this summary
of things people usually want in an "OO language", for a quick reference; note item 6, which has been brought up in this thread already. personally, i'm fond of items 5 and 3.
the language comparison that's been referred to here seems out of date. i know recent Python versions no longer use reference counting alone in their garbage collector, for example, and the column for Visual Basic is not talking about VB.NET, which is a quite different language from pre-dotnet versions. it's a good starting point, but i suspect no comparison of this sort can ever be kept very well up to date as there is simply too much change to track in too many different environments.
the worst flaw with that comparison seems to be that it apparently takes the Capers Jones language level study seriously. that latter study ranks "languages" such as HTML, Excel, shell scripts, and COBOL on a single linear scale... and ranks HTML higher than (for example) Lisp. i'm sorry, but anyone who thinks that
is more than a bad joke frankly brings their own judgement into question.