Fixed Spring deprecated method in ErrorController

src/main/java/it/inaf/oats/vospace/exception/ErrorController.java

@@ -11,6 +11,7 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.web.servlet.error.AbstractErrorController;
+import org.springframework.boot.web.error.ErrorAttributeOptions;
 import org.springframework.boot.web.servlet.error.ErrorAttributes;
 import org.springframework.http.MediaType;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -27,7 +28,8 @@ public class ErrorController extends AbstractErrorController {
 
     @RequestMapping(produces = MediaType.TEXT_XML_VALUE)
     public void errorText(HttpServletRequest request, HttpServletResponse response) throws Exception {
-        Map<String, Object> errors = super.getErrorAttributes(request, true);
+        ErrorAttributeOptions options = ErrorAttributeOptions.of(ErrorAttributeOptions.Include.MESSAGE);
+        Map<String, Object> errors = super.getErrorAttributes(request, options);
         response.setContentType("text/plain;charset=UTF-8");
         response.setCharacterEncoding("UTF-8");
         String errorMessage = (String) errors.get("message");