Can generic types be extended to multiple classes in Java?

I'm trying to write a method using generic parameters in Java. I want to limit it to one of three possible classes (field, method or constructor)

I tried the following title:

private static <T extends Field,Method,Constructor> T[] sort(T[] anArray)

In this way, however, it ignores generic parameters of type method or constructor Errors can also occur using the following:

private static <T extends Field | Method | Constructor> T[] sort(T[] anArray)

Is it possible to do such a thing in Java?

Solution

For your particular case (if you're talking about reflecting a particular class), you're lucky

You can use the accessibleobject course

private static <T extends AccessibleObject> T[] sort(T[] anArray)

You may also be interested in the member interface, depending on your requirements