How to name a function that takes no argument and returns nothing?

In Java 8's java.util.function package, we have:

• Function: Takes one argument, produces one result.


• Consumer: Takes one argument, produces nothing.


• Supplier: Takes no argument, produces one result.


• ...: Other cases handling primitives, 2 arguments, etc...

But I need to handle a "takes no argument, produces nothing" case. There is nothing for this in java.util.functionnal.

Runnable exists, but it is strongly linked to the threading context:

• The package is java.lang, not java.util.function.


• The javadoc states : "The Runnable interface should be implemented by any class whose instances are intended to be executed by a thread".


• The name "Runnable" suggest some running code inside a thread.

I have already created the functional interface that simply contains a void execute() method declaration, but I don't know how to name the interface.

"Executor" is already taken, I tried "Box", but it doesn't suit me well.

Some ideas?