如何实现被测类的自定义junit类加载器？

import org.junit.Test;
import org.junit.runner.JUnitCore;
import org.junit.runner.Result;
import org.junit.runner.notification.Failure;

public class CustomJUnitClassLoader extends ClassLoader {

    @Override
    protected Class<?> findClass(String name) throws ClassNotFoundException {
        // 自定义加载被测类的字节码逻辑
        byte[] classBytes = loadClassBytes(name);
        return defineClass(name, classBytes, 0, classBytes.length);
    }

    private byte[] loadClassBytes(String className) {
        // 从文件系统、网络或其他来源获取被测类的字节码
        // 返回字节码的byte数组
    }

    public static void main(String[] args) {
        // 使用自定义ClassLoader加载被测类
        CustomJUnitClassLoader classLoader = new CustomJUnitClassLoader();
        Class<?> testClass = classLoader.loadClass("com.example.MyTestClass");

        // 运行JUnit测试
        Result result = JUnitCore.runClasses(testClass);
        for (Failure failure : result.getFailures()) {
            System.out.println(failure.toString());
        }
    }
}