FasterXML: Could not deserialize form XML to POJO

I'm trying to deserialize XML.

<server>
    <uri>localhost</uri>
    <port>8080</port>
</server>

to POJO

class Storage {
    private Server server;
}

class Server {
    private Server url;
    private Integer port;
}

Here is my fire code

resources = new FileInputStream("/resources/config/" + file);
mapper = new ObjectMapper();
storage = mapper.readValue(resources, Storage.class);

But it doesn't work.

com.fasterxml.jackson.core.JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')

I tried to add JAX-B annotation to Storage and Server class, but the same error occurred.