如何开启方法返回的流的类型信息？

public <T> T getStream() {
    // 返回流对象
}

// 调用方法时指定泛型参数类型
InputStream inputStream = getStream<InputStream>();

public class StreamWrapper {
    private InputStream stream;

    public StreamWrapper(InputStream stream) {
        this.stream = stream;
    }

    public InputStream getStream() {
        return stream;
    }

    public Class<?> getType() {
        return InputStream.class;
    }
}

// 调用方法时获取返回类型信息
StreamWrapper wrapper = getStream();
InputStream inputStream = wrapper.getStream();
Class<?> type = wrapper.getType();

public @interface ReturnType {
    Class<?> value();
}

@ReturnType(InputStream.class)
public InputStream getStream() {
    // 返回流对象
}

// 使用反射获取注解信息
Method method = MyClass.class.getMethod("getStream");
ReturnType returnType = method.getAnnotation(ReturnType.class);
Class<?> type = returnType.value();