测试JDK8  JDK17编译包

当前环境JDK8

CASE 1：

/*** * @author ZengWenFeng* @email 117791303@QQ.com* @mobile 13805029595* @date 2023-08-07*/
package zwf;import a.T;
import ce.pub.util.GUID;/*** 测试高版本JDK编译JAR，低版本错误** @author ZengWenFeng* @email 117791303@QQ.com* @mobile 13805029595* @date 2023-08-07*/
public class Test
{/*** * @author ZengWenFeng* @email 117791303@QQ.COM* @mobile 13805029595* @date 2023.08.07*/public static void main(String[] args){//ce.pub.util.GUID  公司架构包System.out.println(GUID.newGUID());//JavaFramework-JDK17.jar 引用旧工程打包T.test(1, 2);//TestClazzVersion-JDK17.jar 引用全新开发环境下17打包编译的}/*** * * 
DAB24512CFF2368D72F3997F2257F7F8
Exception in thread "main" java.lang.UnsupportedClassVersionError: a/T has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 52.0at java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClass(ClassLoader.java:756)at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)at java.net.URLClassLoader.defineClass(URLClassLoader.java:473)at java.net.URLClassLoader.access$100(URLClassLoader.java:74)at java.net.URLClassLoader$1.run(URLClassLoader.java:369)at java.net.URLClassLoader$1.run(URLClassLoader.java:363)at java.security.AccessController.doPrivileged(Native Method)at java.net.URLClassLoader.findClass(URLClassLoader.java:362)at java.lang.ClassLoader.loadClass(ClassLoader.java:418)at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)at java.lang.ClassLoader.loadClass(ClassLoader.java:351)at zwf.Test.main(Test.java:34)	* * */
}

java.lang.UnsupportedClassVersionError_spencer_tseng的博客-CSDN博客

CASE 2：