How to get method references via reflection? [duplicate]

This question already has an answer here:

• How to get the MethodInfo of a Java 8 method reference? 3 answers

Suppose I have some functional interface like Function and some methods of different classes for which I can take method references, for example:

class A {
   public int getPrimitive() { return 0; }
   public Integer getBoxed() { return 0; }
   public static int getStaticPrimitive(A a) { return 1; }
}

Function<Integer, A> primitive = A::getPrimitive;
Function<Integer, A> boxed = A::getBoxed;
Function<Integer, A> staticPrimitive = A::getStaticPrimitive;

How I can get these method references converted to instances of Function interface via reflection?