CRITICAL PROGUARD BUG! Very simple code not working!

[steelswing]

CRITICAL PROGUARD BUG! Very simple code not working on latest proguard version, I turned off all options and the code still doesn't work.

My proguard config:

-injars 'exampleapp.jar'
-outjars 'exampleapp.jar'

-libraryjars 'C:\Program Files\Java\jdk-17\jmods\java.base.jmod'

-dontskipnonpubliclibraryclassmembers
-dontshrink
-dontoptimize
-dontobfuscate
-dontusemixedcaseclassnames
-dontpreverify
-dontnote
-dontwarn

Java code:

The elements will never be moved after obfuscation

package com.example;

import java.io.IOException;
import java.net.URL;
import java.util.Enumeration;

public class Main {

    public static void main(String[] args) {
        String packageName = Main.class.getPackage().getName();
        String packagePath = packageName.replace('.', '/');
        try {
            Enumeration<URL> urlEnumeration = Main.class.getClassLoader().getResources(packagePath);
            while (urlEnumeration.hasMoreElements()) {
                System.out.println("has more elements! <<<");
                URL resource = urlEnumeration.nextElement();
                System.out.println("resource = " + resource);
                if (resource.getProtocol().equals("file")) {
                    System.out.println(">>> file");
                } else if (resource.getProtocol().equals("jar")) {
                    System.out.println(">>> jar");
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Possible problems:

• Java bytecode has been changed
• Line number has been removed
• astore_0, astore_1 swaped in byte code.