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    <p>If you cant change your classes you can create new abstract class/interface which will be containing methods with annotation <code>@JsonIgnore</code>. In this class/interface you can define methods which <code>ObjectMapper</code> should skips during serialization/deserialization process.</p> <p>Please, see my little example:</p> <pre><code>import java.io.IOException; import com.fasterxml.jackson.annotation.JsonIgnore; import com.fasterxml.jackson.databind.ObjectMapper; public class JacksonProgram { public static void main(String[] args) throws IOException { Person person = new Person(); person.setId(1L); person.setName("Max"); ObjectMapper objectMapper = new ObjectMapper(); objectMapper.addMixInAnnotations(Person.class, PersonMixIn.class); System.out.println(objectMapper.writeValueAsString(person)); } } abstract class Entity { private Long id; public Long getId() { return id; } public void setId(Long id) { this.id = id; } } interface Namamble { String getName(); } class Person extends Entity implements Namamble { private String name; @Override public String getName() { return name; } public void setName(String name) { this.name = name; } } interface PersonMixIn { @JsonIgnore String getName(); } </code></pre> <p><strong>EDIT - answer for the comments</strong></p> <p>You can create such mixin interface:</p> <pre><code>public static interface UserInformationMixIn { @JsonIgnore String getField3(); } </code></pre> <p>and configure <code>ObjectMapper</code> in this way:</p> <pre><code>objectMapper.addMixInAnnotations(UserInformation.class, UserInformationMixIn.class); </code></pre> <p>Full example source code:</p> <pre><code>import java.io.IOException; import com.fasterxml.jackson.annotation.JsonIgnore; import com.fasterxml.jackson.databind.ObjectMapper; public class JacksonProgram { public static void main(String[] args) throws IOException { UserInformation userInformation = new UserInformation(); userInformation.setField3("field3"); userInformation.setField4("field4"); userInformation.setField5("field5"); User user = new User(); user.setField1(userInformation); user.setField2("field2"); ObjectMapper objectMapper = new ObjectMapper(); objectMapper.addMixInAnnotations(UserInformation.class, UserInformationMixIn.class); objectMapper.addMixInAnnotations(User.class, UserInformationMixIn.class); System.out.println(objectMapper.writeValueAsString(user)); } public static abstract class Someclass { String field5; public String getField5() { return field5; } public void setField5(String field5) { this.field5 = field5; } } public static class UserInformation extends Someclass { String field3; String field4; public String getField3() { return field3; } public void setField3(String field3) { this.field3 = field3; } public String getField4() { return field4; } public void setField4(String field4) { this.field4 = field4; } } public static class User { UserInformation field1; String field2; public UserInformation getField1() { return field1; } public void setField1(UserInformation field1) { this.field1 = field1; } public String getField2() { return field2; } public void setField2(String field2) { this.field2 = field2; } } public static interface UserInformationMixIn { @JsonIgnore String getField3(); @JsonIgnore String getField2(); @JsonIgnore String getField5(); } } </code></pre> <p>Helpful link:</p> <ul> <li><a href="https://stackoverflow.com/questions/7421474/how-can-i-tell-jackson-to-ignore-a-property-for-which-i-dont-have-control-over">How can I tell jackson to ignore a property for which I don't have control over the source code?</a></li> </ul>
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    1. POEquivalent code settings for @JSonIgnore
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    1. USMichał Ziober
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    1. COThank you mykhaylo, I'll try to follow your example.
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    2. COabstract class Someclass { String field5; } class UserInformation extends SomeClass { String field3; String field4; } class User { UserInformation field1; String field2; }
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    3. COSorry for the formatting, how can I serialize the field1 but without the field3 using mixin classes? It's a little even more complicated class structure but if you answer me to the question I could adapt easily. Thank you again.
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