JarAnalyzer.java

package org.example;

import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;

import java.io.IOException;
import java.util.Enumeration;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;

public class JarAnalyzer {
    private final String jarPath;

    public JarAnalyzer(String jarPath) {
        this.jarPath = jarPath;
    }

    public void processClasses(ClassVisitor visitor) throws IOException {
        try (JarFile jarFile = new JarFile(jarPath)) {
            Enumeration<JarEntry> entries = jarFile.entries();
            
            while (entries.hasMoreElements()) {
                JarEntry entry = entries.nextElement();
                if (entry.getName().endsWith(".class")) {
                    ClassReader classReader = new ClassReader(jarFile.getInputStream(entry));
                    classReader.accept(visitor, ClassReader.EXPAND_FRAMES);
                }
            }
        }
    }
}