Java:如何将存储为byte []的类加载到JVM中？

import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

public class ByteArrayClassLoader extends ClassLoader {
    public Class loadClass(String className, byte[] classData) {
        return defineClass(className, classData, 0, classData.length);
    }
}

public class Main {
    public static void main(String[] args) throws IOException {
        String className = "MyClass";
        String classPath = "/path/to/MyClass.class";

        // 从文件中读取字节数组
        try (InputStream inputStream = new FileInputStream(classPath)) {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            int data = inputStream.read();

            while (data != -1) {
                buffer.write(data);
                data = inputStream.read();
            }

            byte[] classData = buffer.toByteArray();

            // 使用自定义类加载器加载类
            ByteArrayClassLoader classLoader = new ByteArrayClassLoader();
            Class loadedClass = classLoader.loadClass(className, classData);

            // 创建类的实例
            Object instance = loadedClass.getDeclaredConstructor().newInstance();
        }
    }
}