try to compile the simplest Spring program:
Main.java

import org.springframework.beans.factory.BeanFactory;
import org.springframework.context.support.ClassPathXmlApplicationContext;
//
public class Main {  
    private String who = null;  
    public static void main(String[] args) {  
        BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml");  
        HelloWorld hw1 = (HelloWorld)factory.getBean("hello");//map.get("hello")  
        System.out.println(hw1.getInfo());  
        System.out.println(hw1);  
    }  
}

Command Line:

$javac -cp /path/of/spring-beans.jar:/path/of/spring-context-support.jar Main.jar

complete:

javac  -cp /Users/apple/Desktop/springt/sp/spring-framework-5.0.5.RELEASE/libs/spring-beans-5.0.5.RELEASE.jar:/Users/apple/Desktop/springt/sp/spring-framework-5.0.5.RELEASE/libs/spring-context-support-5.0.5.RELEASE.jar Main.java

error report:

Main.java:3: error: package org.springframework.context.support does not exist
import org.springframework.context.support.ClassPathXmlApplicationContext;
                                      ^
Main.java:12: error: cannot find symbol
    BeanFactory factory = new ClassPathXmlApplicationContext("applicationContext.xml");  

at first I thought there was something wrong with me, but the unzipped jar package found that
org.springframework.beans.factory.BeanFactory is normal, but
spring-context-support-5.0.5.RELEASE there is no context.support
directory:

$ tree -L 3
.
 META-INF
  MANIFEST.MF
  license.txt
  notice.txt
 org
     springframework
         cache
         mail
         scheduling
         ui

7 directories, 3 files

$ pwd
/Users/apple/Desktop/springt/sp/spring-framework-5.0.5.RELEASE/libs/spring-context-support-5.0.5.RELEASE

Why is this happening?
I re-downloaded several earlier versions of the Spring jar package, and I also don"t have a corresponding directory. What"s wrong with me?