intellij-idea - 使用 ClassName::new (java 8) 生成类实例失败

Question

上下文是:

• IDE:intellij
• 使用 Lombok @Data @AllArgsConstructor 来注释我的模型类

• 编译正常，但运行以下情况失败。

  /** This is the model class */
  @Data
  @AllArgsConstructor
  class Message {
     public Long id;
     public String name;
  }
  
  /** This is a test case */
  @Test
  public void testConstructRef() {
      BiFunction<Long, String, Message> constructFunc = Message::new;
      Message msg = constructFunc.apply(1L, "this is a message");
  
      assertEquals(1L, (long) msg.getId());
      assertEquals("this is a message", msg.getName());
  }
  

在 IDE 中，Message 构造函数和 getter/setter 都在那里。 编译正常，但运行失败。

所以我的问题是:

• 这是 Intellij 问题还是 lombok 问题还是 java 8 问题？
• 以前有人遇到过这种情况吗？如果我必须使用 lombok 如何修复它？ (如果我手动编写构造函数/getter/setter，它可以成功运行。)

---

顺便说一句，运行错误是:

    Error:(40, 63) java: incompatible types: invalid constructor reference
        constructor Message in class java8.methodref.TestDemo.Message cannot be applied to given types
          required: no arguments
          found: java.lang.Long,java.lang.String
          reason: actual and formal argument lists differ in length
    Error:(43, 40) java: cannot find symbol
      symbol:   method getId()
      location: variable msg of type java8.methodref.TestDemo.Message
    Error:(44, 50) java: cannot find symbol
      symbol:   method getName()
      location: variable msg of type java8.methodref.TestDemo.Message

Answer 1

与设置完美配合:

<dependency>
  <groupId>junit</groupId>
  <artifactId>junit</artifactId>
  <version>4.12</version>
  <scope>test</scope>
</dependency>

<dependency>
  <groupId>org.projectlombok</groupId>
  <artifactId>lombok</artifactId>
  <version>1.16.10</version>
</dependency>

"IntelliJ IDEA 2016.3 Build #IU-163.7743.44, built on November 17, 2016 JRE: 1.8.0_112-release-408-b2 amd64 JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o "