Fixed issue with @Transient

spring-data-mongodb/src/main/java/org/baeldung/model/User.java

@@ -1,7 +1,5 @@
 package org.baeldung.model;
 
-import java.util.Calendar;
-
 import org.baeldung.annotation.CascadeSave;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.data.annotation.Id;
@@ -80,6 +78,11 @@ public class User {
     }
 
     public Integer getYearOfBirth() {
-        return Calendar.getInstance().get(Calendar.YEAR) - age;
+        return yearOfBirth;
     }
+
+    public void setYearOfBirth(Integer yearOfBirth) {
+        this.yearOfBirth = yearOfBirth;
+    }
+
 }

spring-data-mongodb/src/test/java/org/baeldung/mongotemplate/MongoTemplateQueryIntegrationTest.java

@@ -186,8 +186,9 @@ public class MongoTemplateQueryIntegrationTest {
     public void whenSavingUser_thenYearOfBirthIsCalculated() {
         final User user = new User();
         user.setName("Alex");
+        user.setYearOfBirth(1985);
         mongoTemplate.insert(user);
 
-        assertThat(mongoTemplate.findOne(Query.query(Criteria.where("name").is("Alex")), User.class).getYearOfBirth(), is(2015));
+        assertThat(user.getYearOfBirth(), is(1985));
     }
 }