Java：如何将存储为byte []的Class加载到JVM中？

我现在在测试中实际上正在使用类似的方法，将一组类定义作为byte []给予ClassLoader：

  public static class ByteClassLoader extends URLClassLoader {    private final Map<String, byte[]> extraClassDefs;    public ByteClassLoader(URL[] urls, ClassLoader parent, Map<String, byte[]> extraClassDefs) {      super(urls, parent);      this.extraClassDefs = new HashMap<String, byte[]>(extraClassDefs);    }    @Override    protected Class<?> findClass(final String name) throws ClassNotFoundException {      byte[] classBytes = this.extraClassDefs.remove(name);      if (classBytes != null) {        return defineClass(name, classBytes, 0, classBytes.length);       }      return super.findClass(name);    }  }