// Outer.java
public class Outer {

    public abstract class Inner {
        abstract void test();
    }
}

// Client.java
public class Client {

    private final Object obj = new Object();

    public void run() {
        Outer.Inner inner = new Outer().new Inner() {
            @Override
            void test() {
                System.out.println(obj.toString());
            }
        };
    }
}

这里是 build/classes/java/main/Client.class 里的代码：

//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by Fernflower decompiler)
//

import Outer.Inner;

public class Client {
    private final Object obj = new Object();

    public Client() {
    }

    public void run() {
        Outer var10003 = new Outer();
        var10003.getClass();
        Inner var10000 = new Inner(var10003) {
            {
                x0.getClass();
            }

            void test() {
                System.out.println(Client.this.obj.toString());
            }
        };
    }
}

这里是 Client.class 对应的字节码：

// class version 52.0 (52)
// access flags 0x21
public class Client {

  // compiled from: Client.java
  // access flags 0x0
  INNERCLASS Client$1 null null
  // access flags 0x401
  public abstract INNERCLASS Outer$Inner Outer Inner

  // access flags 0x12
  private final Ljava/lang/Object; obj

  // access flags 0x1
  public <init>()V
   L0
    LINENUMBER 1 L0
    ALOAD 0
    INVOKESPECIAL java/lang/Object.<init> ()V
   L1
    LINENUMBER 3 L1
    ALOAD 0
    NEW java/lang/Object
    DUP
    INVOKESPECIAL java/lang/Object.<init> ()V
    PUTFIELD Client.obj : Ljava/lang/Object;
    RETURN
   L2
    LOCALVARIABLE this LClient; L0 L2 0
    MAXSTACK = 3
    MAXLOCALS = 1

  // access flags 0x1
  public run()V
   L0
    LINENUMBER 6 L0
    NEW Client$1
    DUP
    ALOAD 0
    NEW Outer
    DUP
    INVOKESPECIAL Outer.<init> ()V
    DUP
    INVOKEVIRTUAL java/lang/Object.getClass ()Ljava/lang/Class;
    POP
    INVOKESPECIAL Client$1.<init> (LClient;LOuter;)V
    ASTORE 1
   L1
    LINENUMBER 12 L1
    RETURN
   L2
    LOCALVARIABLE this LClient; L0 L2 0
    LOCALVARIABLE inner LOuter$Inner; L1 L2 1
    MAXSTACK = 5
    MAXLOCALS = 2

  // access flags 0x1008
  static synthetic access$000(LClient;)Ljava/lang/Object;
   L0
    LINENUMBER 1 L0
    ALOAD 0
    GETFIELD Client.obj : Ljava/lang/Object;
    ARETURN
   L1
    LOCALVARIABLE x0 LClient; L0 L1 0
    MAXSTACK = 1
    MAXLOCALS = 1
}

最后是老师视频里的代码截图：

我的疑惑是，似乎我并没有在字节码或者 Client.class 文件里看到和 Client$1 一样的代码？