RestTemplate Converting Generic Types [SPR-8840]

[spring-projects-issues]

Furkan KAMACI opened SPR-8840 and commented

I have a model like that:

public class Wrapper<T> {

 private String message;
 private T data;

 public String getMessage() {
    return message;
 }

 public void setMessage(String message) {
    this.message = message;
 }

 public T getData() {
    return data;
 }

 public void setData(T data) {
    this.data = data;
 }

}

and I use resttemplate as follows:

...
Wrapper<Model> response = restTemplate.getForObject(URL, Wrapper.class, myMap);
Model model = response.getData();
...

However it throws a:

ClassCastException

I think resttemplate can not understand my generic variable and maybe it accepts it as an Object instead of generic T. So it becomes a LinkedHashMap.

---

Reference URL: http://forum.springsource.org/showthread.php?117511-RestTemplate-Can-Not-Convert-Generic-Types&p=387485#post387485

Issue Links:

• Proper handling of parameterized types in RestTemplate [SPR-7023] #11685 Proper handling of parameterized types in RestTemplate ("duplicates")

[spring-projects-issues]

Chris Beams commented

Furkan,

This appears to be a duplicate of #11685. I notice that you mentioned this issue in your stackoverflow post. Is there anything about this specific issue that you consider different than #11685? If so, feel free to reopen this issue and explain. Otherwise, please direct all comments to the existing #11685 issue.

Thanks!

Chris

[spring-projects-issues]

Rossen Stoyanchev commented

Added code formatting tags