Spring RestTemplate Post erhält 500 internen Serverfehler ⇐ Java

[Guest]

Hallo, ich bin neu im Spring-Framework. Ich habe eine App geschrieben, die Objekte mithilfe von Resttemplate in RESTAPI postet, aber ich erhalte diese Fehlermeldung

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23:07:05.856 [main] DEBUG o.s.web.client.RestTemplate - Created POST request for
"http://dummyurl.net/Index"
23:07:05.887 [main] DEBUG o.s.web.client.RestTemplate - Setting request Accept
header to [application/json, application/*+json]
23:07:05.887 [main] DEBUG o.s.web.client.RestTemplate - Writing
[org.hrishi.ConsumeReStApi.Info@727803de] as "application/json" using
[org.springframework.http.converter.json.MappingJacksonHttpMessageConverter@704921a5]
23:07:05.981 [main] WARN  o.s.web.client.RestTemplate - POST request for "dummyurl.net"
resulted in 500 (Internal Server Error); invoking error handler
Exception in thread "main" org.springframework.web.client.HttpServerErrorException: 500 Internal Server Error
at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:94)
at org.springframework.web.client.RestTemplate.handleResponseError(RestTemplate.java:598)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:556)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:512)
at org.springframework.web.client.RestTemplate.postForEntity(RestTemplate.java:363)
at org.hrishi.ConsumeReStApi.App.main(App.java:35)

und das ist mein Code

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        String url=    "http://dummyurl.net/Index";
RestTemplate restTemplate = new RestTemplate();
MultiValueMap headers = new LinkedMultiValueMap();
headers.add("Content-Type", "application/json");
Info info1=new Info();
info1.Id="1711";
info1.Name="Hrishi";
HttpEntity HReq=new HttpEntity(info1,headers);
ResponseEntity info = restTemplate.postForEntity(url, HReq, Info.class);
System.out.print("id : "+info.getBody());

und das ist das Anforderungsobjekt

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public class Info {

public String Id;
public String Name;

public String getName() {
return Name;
}

public String getId() {
return Id;
}

}