There is not an Universal OOP specification to follow. In Java's case, a lot OOP flavor's design patterns are created due to Java's lacking of some primitives

There is not an Universal OOP specification to follow. In Java's case, a lot OOP flavor's design patterns are created due to Java's lacking of some primitives like closure/lambda and higher-order functions back in its old days. In short, Java's OOP solves many problems that are unique to Java and could be easily avoided in other languages.