Two interfaces with same method signature implemented in Java class

Question

I have two Java interfaces and one implementing class.

(I have used Eclipse to run the program directly, and I did not try to check any compiler warning et cetera by

Answer 1

In this situation, there is no issue because both interfaces have same method signature. But What about this ?

interface Animal {
    public void eat() throws IOException;
}

interface Plants {
    public void eat() throws NullPointerException;
}

Which one is choosen by the compiler ? Why does it get error below code ?

public class Test implements Animal, Plants {

    public void eat() throws IOException {

    }
}

Compiler says : Exception IOException is not compatible with throws clause in Plants.eat()