package cn.icanci.jvm.metaspace;

/**
 * @Author: icanci
 */
public class ObjectTest {
    public static void main(String[] args) {
        ObjectTest objectTest = new ObjectTest();
    }
}

Classfile /E:/IdeaHome/maven/jvm/target/classes/cn/icanci/jvm/metaspace/ObjectTest.class
  Last modified 2020-8-23; size 461 bytes
  MD5 checksum 250e31f1cead14786c196d7e3b3c3fc0
  Compiled from "ObjectTest.java"
public class cn.icanci.jvm.metaspace.ObjectTest
  minor version: 0
  major version: 52
  flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
   #1 = Methodref          #4.#19         // java/lang/Object."<init>":()V
   #2 = Class              #20            // cn/icanci/jvm/metaspace/ObjectTest
   #3 = Methodref          #2.#19         // cn/icanci/jvm/metaspace/ObjectTest."<init>":()V
   #4 = Class              #21            // java/lang/Object
   #5 = Utf8               <init>
   #6 = Utf8               ()V
   #7 = Utf8               Code
   #8 = Utf8               LineNumberTable
   #9 = Utf8               LocalVariableTable
  #10 = Utf8               this
  #11 = Utf8               Lcn/icanci/jvm/metaspace/ObjectTest;
  #12 = Utf8               main
  #13 = Utf8               ([Ljava/lang/String;)V
  #14 = Utf8               args
  #15 = Utf8               [Ljava/lang/String;
  #16 = Utf8               objectTest
  #17 = Utf8               SourceFile
  #18 = Utf8               ObjectTest.java
  #19 = NameAndType        #5:#6          // "<init>":()V
  #20 = Utf8               cn/icanci/jvm/metaspace/ObjectTest
  #21 = Utf8               java/lang/Object
{
  public cn.icanci.jvm.metaspace.ObjectTest();
    descriptor: ()V
    flags: ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
         0: aload_0
         1: invokespecial #1                  // Method java/lang/Object."<init>":()V
         4: return
      LineNumberTable:
        line 6: 0
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            0       5     0  this   Lcn/icanci/jvm/metaspace/ObjectTest;

  public static void main(java.lang.String[]);
    descriptor: ([Ljava/lang/String;)V
    flags: ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=1
         0: new           #2                  // class cn/icanci/jvm/metaspace/ObjectTest
         3: dup
         4: invokespecial #3                  // Method "<init>":()V
         7: astore_1
         8: return
      LineNumberTable:
        line 8: 0
        line 9: 8
      LocalVariableTable:
        Start  Length  Slot  Name   Signature
            0       9     0  args   [Ljava/lang/String;
            8       1     1 objectTest   Lcn/icanci/jvm/metaspace/ObjectTest;
}
SourceFile: "ObjectTest.java"

Process finished with exit code 0

package cn.icanci.jvm.metaspace;

/**
 * @Author: icanci
 */
public class Customer {
    int id = 1001;
    String name;
    Account acct;

    {
        name = "匿名用户";
    }

    public Customer() {
        acct = new Account();
    }
}

class Account {

}

package cn.icanci.jvm.metaspace;

/**
 * @Author: icanci
 */
public class ConsumerTest {
    public static void main(String[] args) {
        Customer customer = new Customer();
    }
}