放置在变量中的Java成员引用不相等

Java 8或Java 11-我通过枚举构造函数加载静态函数接口.然后，我try 与相同的成员引用进行比较.要么代码无法编译，要么与相同函数接口的比较失败.使用.equals和==进行比较以及使用.hashcode()进行比较都会失败.我已经创建了下面的POJO测试，它演示了这个问题并指出了相关的特定点.我想编写代码"如果实例成员等于specific-static-functional-interface-method-x，，则执行..."

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;

import java.util.function.Function;

import org.junit.jupiter.api.Test;

enum MethodReferenceEnum {
    One("One", MethodReferenceInterface::one),
    Two("Two", MethodReferenceInterface::two);

    public String name;
    public Function<String, Integer> method;

    private MethodReferenceEnum(String aName, Function<String, Integer> aMethod) {
        name = aName;
        method = aMethod;
    }
}

interface MethodReferenceInterface {
    public static Integer one(String aString) {
        return 1;
    }
    public static Integer two(String aString) {
        return 2;
    }
}

class MethodRererencesTest {

    @Test
    void LocalUseTest() {
        // This performs in JavaSE-8 (jdk-1.8.0_271) and JavaSE-11 (jdk-11.0.11).

        // These succeed in placing the member references in variables.
        Function<String, Integer> choice1a = MethodReferenceInterface::one;
        Function<String, Integer> choice1b = MethodReferenceEnum.One.method;
        Function<String, Integer> choice2a = MethodReferenceInterface::two;

        // These succeed in executing the member references from variables.
        assertEquals(1, choice1a.apply("A").intValue());
        assertEquals(1, choice1b.apply("B").intValue());
        assertEquals(2, choice2a.apply("2nd").intValue());

        // Why does the following fail to compile?
        //
        // assertEquals(choice1a, MethodReferenceInterface::one);
        //
        // ^ assertEquals fails to compile due to:
        // The method assertEquals(Object, Object) in the type Assert is not applicable
        // for the arguments (Function<String, Integer), MethodReferenceInterface::one)
        // ^ MethodReferenceInterface::one fails to compile due to:
        // The target type of the expression must be a functional interface

        // Compiles and succeeds; expected.
        assertEquals(choice1a, choice1a);

        // This compiles, and succeeds,
        // but why do they not compare equal?
        assertNotEquals(choice1a, choice1b);
    }
}

最后一行和问题总结了这个问题.我在上面运行了测试，它通过了.问题在于，包含相同成员引用的变量在比较时并不相等.这发生在Java 8和Java 11中.