Interface If1

test/testclasses/src/main/java/jvm/lambda/InterfaceMethodTest.java:9–16

public class InterfaceMethodTest {
    
    public interface If1 {
        static int x() {
            return 1;
        }
        default int y() {
            return 2;
        }
    }
    
    public static class Impl1 implements If1 {