Merge branch 'nguyennamthai-master'

jackson/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.baeldung</groupId>
     <artifactId>jackson</artifactId>
@@ -54,6 +55,12 @@
             <groupId>com.fasterxml.jackson.datatype</groupId>
             <artifactId>jackson-datatype-joda</artifactId>
             <version>${jackson.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>com.fasterxml.jackson.module</groupId>
+			<artifactId>jackson-module-jsonSchema</artifactId>
+			<version>2.6.0</version>
         </dependency>
 
         <dependency>
@@ -168,4 +175,4 @@
 
     </properties>
 
-</project>
+</project>

jackson/src/test/java/com/baeldung/jackson/annotation/BeanWithCreator.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;

jackson/src/test/java/com/baeldung/jackson/annotation/BeanWithCustomAnnotation.java

@@ -1,10 +1,10 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.Date;
 
-import org.baeldung.jackson.annotation.BeanWithCustomAnnotation.CustomAnnotation;
+import com.baeldung.jackson.annotation.BeanWithCustomAnnotation.CustomAnnotation;
 
 import com.fasterxml.jackson.annotation.JacksonAnnotationsInside;
 import com.fasterxml.jackson.annotation.JsonInclude;

jackson/src/test/java/com/baeldung/jackson/annotation/BeanWithFilter.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonFilter;
 

jackson/src/test/java/com/baeldung/jackson/annotation/BeanWithGetter.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonGetter;
 import com.fasterxml.jackson.annotation.JsonProperty;

jackson/src/test/java/com/baeldung/jackson/annotation/BeanWithIgnore.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;

jackson/src/test/java/com/baeldung/jackson/annotation/BeanWithInject.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JacksonInject;
 

jackson/src/test/java/com/baeldung/jackson/annotation/ExtendableBean.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import java.util.HashMap;
 import java.util.Map;

jackson/src/test/java/com/baeldung/jackson/annotation/MyBean.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonInclude.Include;

jackson/src/test/java/com/baeldung/jackson/annotation/PrivateBean.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;

jackson/src/test/java/com/baeldung/jackson/annotation/RawBean.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonRawValue;
 

jackson/src/test/java/com/baeldung/jackson/annotation/UnwrappedUser.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonUnwrapped;
 

jackson/src/test/java/com/baeldung/jackson/annotation/UserWithIgnoreType.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreType;
 

jackson/src/test/java/com/baeldung/jackson/annotation/Zoo.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.annotation;
+package com.baeldung.jackson.annotation;
 
 import com.fasterxml.jackson.annotation.JsonSubTypes;
 import com.fasterxml.jackson.annotation.JsonTypeInfo;

jackson/src/test/java/com/baeldung/jackson/annotation/extra/AppendBean.java

@@ -0,0 +1,31 @@
+package com.baeldung.jackson.annotation.extra;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.databind.annotation.JsonAppend;
+
+@JsonAppend(attrs = {@JsonAppend.Attr(value = "appendedProperty", include = JsonInclude.Include.ALWAYS)})
+public class AppendBean {
+    private int id;
+    private String name;
+
+    public AppendBean(int id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

jackson/src/test/java/com/baeldung/jackson/annotation/extra/ExtraAnnotationTest.java

@@ -0,0 +1,100 @@
+package com.baeldung.jackson.annotation.extra;
+
+import static org.junit.Assert.*;
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.CoreMatchers.instanceOf;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.ObjectMapper.DefaultTyping;
+import com.fasterxml.jackson.module.jsonSchema.JsonSchema;
+import com.fasterxml.jackson.module.jsonSchema.factories.SchemaFactoryWrapper;
+
+public class ExtraAnnotationTest {
+    @Test
+    public void whenUsingJsonIdentityReferenceAnnotation_thenCorrect() throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+        IdentityReferenceBean bean = new IdentityReferenceBean(1, "Identity Reference Bean");
+        String jsonString = mapper.writeValueAsString(bean);
+
+        assertEquals("1", jsonString);
+    }
+
+    @Test
+    public void whenUsingJsonAppendAnnotation_thenCorrect() throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+        AppendBean bean = new AppendBean(2, "Append Bean");
+        String jsonString = mapper.writeValueAsString(bean);
+
+        assertThat(jsonString, containsString("appendedProperty"));
+    }
+
+    @Test
+    public void whenUsingJsonNamingAnnotation_thenCorrect() throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+        NamingBean bean = new NamingBean(3, "Naming Bean");
+        String jsonString = mapper.writeValueAsString(bean);
+
+        assertThat(jsonString, containsString("bean_name"));
+    }
+
+    @Test
+    public void whenUsingJsonPropertyDescriptionAnnotation_thenCorrect() throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+        SchemaFactoryWrapper wrapper = new SchemaFactoryWrapper();
+        mapper.acceptJsonFormatVisitor(PropertyDescriptionBean.class, wrapper);
+        JsonSchema jsonSchema = wrapper.finalSchema();
+        String jsonString = mapper.writeValueAsString(jsonSchema);
+
+        assertThat(jsonString, containsString("This is a description of the name property"));
+    }
+
+    @Test
+    public void whenUsingJsonPOJOBuilderAnnotation_thenCorrect() throws IOException {
+        ObjectMapper mapper = new ObjectMapper();
+        String jsonString = "{\"id\":5,\"name\":\"POJO Builder Bean\"}";
+        POJOBuilderBean bean = mapper.readValue(jsonString, POJOBuilderBean.class);
+
+        assertEquals(5, bean.getIdentity());
+        assertEquals("POJO Builder Bean", bean.getBeanName());
+    }
+
+    @Test
+    public void whenUsingJsonTypeIdAnnotation_thenCorrect() throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.enableDefaultTyping(DefaultTyping.NON_FINAL);
+        TypeIdBean bean = new TypeIdBean(6, "Type Id Bean");
+        String jsonString = mapper.writeValueAsString(bean);
+
+        assertThat(jsonString, containsString("Type Id Bean"));
+    }
+
+    @Test
+    public void whenUsingJsonTypeIdResolverAnnotation_thenCorrect() throws IOException {
+        TypeIdResolverStructure.FirstBean bean1 = new TypeIdResolverStructure.FirstBean(1, "Bean 1");
+        TypeIdResolverStructure.LastBean bean2 = new TypeIdResolverStructure.LastBean(2, "Bean 2");
+
+        List<TypeIdResolverStructure.AbstractBean> beans = new ArrayList<>();
+        beans.add(bean1);
+        beans.add(bean2);
+
+        TypeIdResolverStructure.BeanContainer serializedContainer = new TypeIdResolverStructure.BeanContainer();
+        serializedContainer.setBeans(beans);
+        
+        ObjectMapper mapper = new ObjectMapper();
+        String jsonString = mapper.writeValueAsString(serializedContainer);
+        assertThat(jsonString, containsString("bean1"));
+        assertThat(jsonString, containsString("bean2"));
+
+        TypeIdResolverStructure.BeanContainer deserializedContainer = mapper.readValue(jsonString, TypeIdResolverStructure.BeanContainer.class);
+        List<TypeIdResolverStructure.AbstractBean> beanList = deserializedContainer.getBeans();
+        assertThat(beanList.get(0), instanceOf(TypeIdResolverStructure.FirstBean.class));
+        assertThat(beanList.get(1), instanceOf(TypeIdResolverStructure.LastBean.class));
+    }
+}

jackson/src/test/java/com/baeldung/jackson/annotation/extra/IdentityReferenceBean.java

@@ -0,0 +1,33 @@
+package com.baeldung.jackson.annotation.extra;
+
+import com.fasterxml.jackson.annotation.JsonIdentityInfo;
+import com.fasterxml.jackson.annotation.JsonIdentityReference;
+import com.fasterxml.jackson.annotation.ObjectIdGenerators;
+
+@JsonIdentityInfo(generator = ObjectIdGenerators.PropertyGenerator.class, property = "id")
+@JsonIdentityReference(alwaysAsId = true)
+public class IdentityReferenceBean {
+    private int id;
+    private String name;
+
+    public IdentityReferenceBean(int id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

jackson/src/test/java/com/baeldung/jackson/annotation/extra/NamingBean.java

@@ -0,0 +1,31 @@
+package com.baeldung.jackson.annotation.extra;
+
+import com.fasterxml.jackson.databind.PropertyNamingStrategy;
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+
+@JsonNaming(PropertyNamingStrategy.SnakeCaseStrategy.class)
+public class NamingBean {
+    private int id;
+    private String beanName;
+
+    public NamingBean(int id, String beanName) {
+        this.id = id;
+        this.beanName = beanName;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getBeanName() {
+        return beanName;
+    }
+
+    public void setBeanName(String beanName) {
+        this.beanName = beanName;
+    }
+}

jackson/src/test/java/com/baeldung/jackson/annotation/extra/POJOBuilderBean.java

@@ -0,0 +1,51 @@
+package com.baeldung.jackson.annotation.extra;
+
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder;
+
+@JsonDeserialize(builder = POJOBuilderBean.BeanBuilder.class)
+public class POJOBuilderBean {
+    private int identity;
+    private String beanName;
+
+    @JsonPOJOBuilder(buildMethodName = "createBean", withPrefix = "construct")
+    public static class BeanBuilder {
+        private int idValue;
+        private String nameValue;
+
+        public BeanBuilder constructId(int id) {
+            idValue = id;
+            return this;
+        }
+
+        public BeanBuilder constructName(String name) {
+            nameValue = name;
+            return this;
+        }
+
+        public POJOBuilderBean createBean() {
+            return new POJOBuilderBean(idValue, nameValue);
+        }
+    }
+
+    public POJOBuilderBean(int identity, String beanName) {
+        this.identity = identity;
+        this.beanName = beanName;
+    }
+
+    public int getIdentity() {
+        return identity;
+    }
+
+    public void setIdentity(int identity) {
+        this.identity = identity;
+    }
+
+    public String getBeanName() {
+        return beanName;
+    }
+
+    public void setBeanName(String beanName) {
+        this.beanName = beanName;
+    }
+}

jackson/src/test/java/com/baeldung/jackson/annotation/extra/PropertyDescriptionBean.java

@@ -0,0 +1,25 @@
+package com.baeldung.jackson.annotation.extra;
+
+import com.fasterxml.jackson.annotation.JsonPropertyDescription;
+
+public class PropertyDescriptionBean {
+    private int id;
+    @JsonPropertyDescription("This is a description of the name property")
+    private String name;
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

jackson/src/test/java/com/baeldung/jackson/annotation/extra/TypeIdBean.java

@@ -0,0 +1,30 @@
+package com.baeldung.jackson.annotation.extra;
+
+import com.fasterxml.jackson.annotation.JsonTypeId;
+
+public class TypeIdBean {
+    private int id;
+    @JsonTypeId
+    private String name;
+
+    public TypeIdBean(int id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}

jackson/src/test/java/com/baeldung/jackson/annotation/extra/TypeIdResolverStructure.java

@@ -0,0 +1,130 @@
+package com.baeldung.jackson.annotation.extra;
+
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonTypeInfo.Id;
+import com.fasterxml.jackson.databind.DatabindContext;
+import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.annotation.JsonTypeIdResolver;
+import com.fasterxml.jackson.databind.jsontype.impl.TypeIdResolverBase;
+
+public class TypeIdResolverStructure {
+    public static class BeanContainer {
+        private List<AbstractBean> beans;
+
+        public List<AbstractBean> getBeans() {
+            return beans;
+        }
+
+        public void setBeans(List<AbstractBean> beans) {
+            this.beans = beans;
+        }
+    }
+
+    @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "@type")
+    @JsonTypeIdResolver(BeanIdResolver.class)
+    public static class AbstractBean {
+        private int id;
+
+        protected AbstractBean() {
+        }
+
+        protected AbstractBean(int id) {
+            this.id = id;
+        }
+
+        public int getId() {
+            return id;
+        }
+
+        public void setId(int id) {
+            this.id = id;
+        }
+    }
+
+    public static class FirstBean extends AbstractBean {
+        String firstName;
+
+        public FirstBean() {
+        }
+
+        public FirstBean(int id, String name) {
+            super(id);
+            setFirstName(name);
+        }
+
+        public String getFirstName() {
+            return firstName;
+        }
+
+        public void setFirstName(String name) {
+            firstName = name;
+        }
+    }
+
+    public static class LastBean extends AbstractBean {
+        String lastName;
+
+        public LastBean() {
+        }
+
+        public LastBean(int id, String name) {
+            super(id);
+            setLastName(name);
+        }
+
+        public String getLastName() {
+            return lastName;
+        }
+
+        public void setLastName(String name) {
+            lastName = name;
+        }
+    }
+
+    public static class BeanIdResolver extends TypeIdResolverBase {
+        private JavaType superType;
+
+        @Override
+        public void init(JavaType baseType) {
+            superType = baseType;
+        }
+
+        @Override
+        public Id getMechanism() {
+            return Id.NAME;
+        }
+
+        @Override
+        public String idFromValue(Object obj) {
+            return idFromValueAndType(obj, obj.getClass());
+        }
+
+        @Override
+        public String idFromValueAndType(Object obj, Class<?> subType) {
+            String typeId = null;
+            switch (subType.getSimpleName()) {
+            case "FirstBean":
+                typeId = "bean1";
+                break;
+            case "LastBean":
+                typeId = "bean2";
+            }
+            return typeId;
+        }
+
+        @Override
+        public JavaType typeFromId(DatabindContext context, String id) {
+            Class<?> subType = null;
+            switch (id) {
+            case "bean1":
+                subType = FirstBean.class;
+                break;
+            case "bean2":
+                subType = LastBean.class;
+            }
+            return context.constructSpecializedType(superType, subType);
+        }
+    }
+}

jackson/src/test/java/com/baeldung/jackson/bidirection/CustomListDeserializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import java.io.IOException;
 import java.util.ArrayList;

jackson/src/test/java/com/baeldung/jackson/bidirection/CustomListSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import java.io.IOException;
 import java.util.ArrayList;

jackson/src/test/java/com/baeldung/jackson/bidirection/Item.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 public class Item {
     public int id;

jackson/src/test/java/com/baeldung/jackson/bidirection/ItemWithIdentity.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import com.fasterxml.jackson.annotation.JsonIdentityInfo;
 import com.fasterxml.jackson.annotation.ObjectIdGenerators;

jackson/src/test/java/com/baeldung/jackson/bidirection/ItemWithIgnore.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 public class ItemWithIgnore {
     public int id;

jackson/src/test/java/com/baeldung/jackson/bidirection/ItemWithRef.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import com.fasterxml.jackson.annotation.JsonManagedReference;
 

jackson/src/test/java/com/baeldung/jackson/bidirection/ItemWithSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 public class ItemWithSerializer {
     public int id;

jackson/src/test/java/com/baeldung/jackson/bidirection/ItemWithView.java

@@ -1,6 +1,6 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
-import org.baeldung.jackson.jsonview.Views;
+import com.baeldung.jackson.jsonview.Views;
 
 import com.fasterxml.jackson.annotation.JsonView;
 

jackson/src/test/java/com/baeldung/jackson/bidirection/User.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import java.util.ArrayList;
 import java.util.List;

jackson/src/test/java/com/baeldung/jackson/bidirection/UserWithIdentity.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import java.util.ArrayList;
 import java.util.List;

jackson/src/test/java/com/baeldung/jackson/bidirection/UserWithIgnore.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import java.util.ArrayList;
 import java.util.List;

jackson/src/test/java/com/baeldung/jackson/bidirection/UserWithRef.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import java.util.ArrayList;
 import java.util.List;

jackson/src/test/java/com/baeldung/jackson/bidirection/UserWithSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import java.util.ArrayList;
 import java.util.List;

jackson/src/test/java/com/baeldung/jackson/bidirection/UserWithView.java

@@ -1,9 +1,9 @@
-package org.baeldung.jackson.bidirection;
+package com.baeldung.jackson.bidirection;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import org.baeldung.jackson.jsonview.Views;
+import com.baeldung.jackson.jsonview.Views;
 
 import com.fasterxml.jackson.annotation.JsonView;
 

jackson/src/test/java/com/baeldung/jackson/date/CustomDateDeserializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import java.io.IOException;
 import java.text.ParseException;

jackson/src/test/java/com/baeldung/jackson/date/CustomDateSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import java.io.IOException;
 import java.text.SimpleDateFormat;

jackson/src/test/java/com/baeldung/jackson/date/CustomDateTimeSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import java.io.IOException;
 

jackson/src/test/java/com/baeldung/jackson/date/CustomLocalDateTimeSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import java.io.IOException;
 import java.time.LocalDateTime;

jackson/src/test/java/com/baeldung/jackson/date/Event.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import java.util.Date;
 

jackson/src/test/java/com/baeldung/jackson/date/EventWithFormat.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import java.util.Date;
 

jackson/src/test/java/com/baeldung/jackson/date/EventWithJodaTime.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import org.joda.time.DateTime;
 

jackson/src/test/java/com/baeldung/jackson/date/EventWithLocalDateTime.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import java.time.LocalDateTime;
 

jackson/src/test/java/com/baeldung/jackson/date/EventWithSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.date;
+package com.baeldung.jackson.date;
 
 import java.util.Date;
 

jackson/src/test/java/com/baeldung/jackson/deserialization/ItemDeserializer.java

@@ -1,9 +1,9 @@
-package org.baeldung.jackson.deserialization;
+package com.baeldung.jackson.deserialization;
 
 import java.io.IOException;
 
-import org.baeldung.jackson.dtos.Item;
-import org.baeldung.jackson.dtos.User;
+import com.baeldung.jackson.dtos.User;
+import com.baeldung.jackson.dtos.Item;
 
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.JsonProcessingException;

jackson/src/test/java/com/baeldung/jackson/deserialization/ItemDeserializerOnClass.java

@@ -1,9 +1,9 @@
-package org.baeldung.jackson.deserialization;
+package com.baeldung.jackson.deserialization;
 
 import java.io.IOException;
 
-import org.baeldung.jackson.dtos.ItemWithSerializer;
-import org.baeldung.jackson.dtos.User;
+import com.baeldung.jackson.dtos.ItemWithSerializer;
+import com.baeldung.jackson.dtos.User;
 
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.JsonProcessingException;

jackson/src/test/java/com/baeldung/jackson/dtos/Item.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 public class Item {
     public int id;

jackson/src/test/java/com/baeldung/jackson/dtos/ItemWithSerializer.java

@@ -1,7 +1,7 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
-import org.baeldung.jackson.deserialization.ItemDeserializerOnClass;
-import org.baeldung.jackson.serialization.ItemSerializerOnClass;
+import com.baeldung.jackson.deserialization.ItemDeserializerOnClass;
+import com.baeldung.jackson.serialization.ItemSerializerOnClass;
 
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;

jackson/src/test/java/com/baeldung/jackson/dtos/MyDto.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 public class MyDto {
 

jackson/src/test/java/com/baeldung/jackson/dtos/MyDtoFieldNameChanged.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 

jackson/src/test/java/com/baeldung/jackson/dtos/MyDtoIncludeNonDefault.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonInclude.Include;

jackson/src/test/java/com/baeldung/jackson/dtos/MyDtoNoAccessors.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 public class MyDtoNoAccessors {
 

jackson/src/test/java/com/baeldung/jackson/dtos/MyDtoNoAccessorsAndFieldVisibility.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 import com.fasterxml.jackson.annotation.JsonAutoDetect;
 import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;

jackson/src/test/java/com/baeldung/jackson/dtos/MyDtoWithFilter.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 import com.fasterxml.jackson.annotation.JsonFilter;
 

jackson/src/test/java/com/baeldung/jackson/dtos/MyMixInForString.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreType;
 

jackson/src/test/java/com/baeldung/jackson/dtos/User.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos;
+package com.baeldung.jackson.dtos;
 
 public class User {
     public int id;

jackson/src/test/java/com/baeldung/jackson/dtos/ignore/MyDtoIgnoreField.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.ignore;
+package com.baeldung.jackson.dtos.ignore;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 

jackson/src/test/java/com/baeldung/jackson/dtos/ignore/MyDtoIgnoreFieldByName.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.ignore;
+package com.baeldung.jackson.dtos.ignore;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 

jackson/src/test/java/com/baeldung/jackson/dtos/ignore/MyDtoIgnoreNull.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.ignore;
+package com.baeldung.jackson.dtos.ignore;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonInclude.Include;

jackson/src/test/java/com/baeldung/jackson/dtos/ignore/MyDtoIgnoreType.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.ignore;
+package com.baeldung.jackson.dtos.ignore;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 

jackson/src/test/java/com/baeldung/jackson/dtos/ignore/MyDtoIgnoreUnknown.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.ignore;
+package com.baeldung.jackson.dtos.ignore;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 

jackson/src/test/java/com/baeldung/jackson/dtos/withEnum/MyDtoWithEnum.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.withEnum;
+package com.baeldung.jackson.dtos.withEnum;
 
 public class MyDtoWithEnum {
 

jackson/src/test/java/com/baeldung/jackson/dtos/withEnum/MyDtoWithEnumCustom.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.withEnum;
+package com.baeldung.jackson.dtos.withEnum;
 
 public class MyDtoWithEnumCustom {
 

jackson/src/test/java/com/baeldung/jackson/dtos/withEnum/TypeEnum.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.withEnum;
+package com.baeldung.jackson.dtos.withEnum;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 

jackson/src/test/java/com/baeldung/jackson/dtos/withEnum/TypeEnumSimple.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.withEnum;
+package com.baeldung.jackson.dtos.withEnum;
 
 public enum TypeEnumSimple {
     TYPE1(1, "Type A"), TYPE2(2, "Type 2");

jackson/src/test/java/com/baeldung/jackson/dtos/withEnum/TypeEnumWithCustomSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.withEnum;
+package com.baeldung.jackson.dtos.withEnum;
 
 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
 

jackson/src/test/java/com/baeldung/jackson/dtos/withEnum/TypeEnumWithValue.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.withEnum;
+package com.baeldung.jackson.dtos.withEnum;
 
 import com.fasterxml.jackson.annotation.JsonValue;
 

jackson/src/test/java/com/baeldung/jackson/dtos/withEnum/TypeSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dtos.withEnum;
+package com.baeldung.jackson.dtos.withEnum;
 
 import java.io.IOException;
 

jackson/src/test/java/com/baeldung/jackson/dynamicIgnore/Address.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dynamicIgnore;
+package com.baeldung.jackson.dynamicIgnore;
 
 
 public class Address implements Hidable {

jackson/src/test/java/com/baeldung/jackson/dynamicIgnore/Hidable.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dynamicIgnore;
+package com.baeldung.jackson.dynamicIgnore;
 
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 

jackson/src/test/java/com/baeldung/jackson/dynamicIgnore/HidableSerializer.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dynamicIgnore;
+package com.baeldung.jackson.dynamicIgnore;
 
 import java.io.IOException;
 

jackson/src/test/java/com/baeldung/jackson/dynamicIgnore/Person.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.dynamicIgnore;
+package com.baeldung.jackson.dynamicIgnore;
 
 
 public class Person implements Hidable {

jackson/src/test/java/com/baeldung/jackson/exception/User.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.exception;
+package com.baeldung.jackson.exception;
 
 public class User {
     public int id;

jackson/src/test/java/com/baeldung/jackson/exception/UserWithConflict.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.exception;
+package com.baeldung.jackson.exception;
 
 public class UserWithConflict {
     public int id;

jackson/src/test/java/com/baeldung/jackson/exception/UserWithPrivateFields.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.exception;
+package com.baeldung.jackson.exception;
 
 public class UserWithPrivateFields {
     int id;

jackson/src/test/java/com/baeldung/jackson/exception/UserWithRoot.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.exception;
+package com.baeldung.jackson.exception;
 
 import com.fasterxml.jackson.annotation.JsonRootName;
 

jackson/src/test/java/com/baeldung/jackson/exception/Zoo.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.exception;
+package com.baeldung.jackson.exception;
 
 public class Zoo {
     public Animal animal;

jackson/src/test/java/com/baeldung/jackson/exception/ZooConfigured.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.exception;
+package com.baeldung.jackson.exception;
 
 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 

jackson/src/test/java/com/baeldung/jackson/field/MyDto.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.field;
+package com.baeldung.jackson.field;
 
 public class MyDto {
 

jackson/src/test/java/com/baeldung/jackson/field/MyDtoAccessLevel.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.field;
+package com.baeldung.jackson.field;
 
 public class MyDtoAccessLevel {
 

jackson/src/test/java/com/baeldung/jackson/field/MyDtoWithGetter.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.field;
+package com.baeldung.jackson.field;
 
 public class MyDtoWithGetter {
 

jackson/src/test/java/com/baeldung/jackson/field/MyDtoWithSetter.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.field;
+package com.baeldung.jackson.field;
 
 public class MyDtoWithSetter {
 

jackson/src/test/java/com/baeldung/jackson/inheritance/IgnoranceAnnotationStructure.java

@@ -0,0 +1,96 @@
+package com.baeldung.jackson.inheritance;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
+public class IgnoranceAnnotationStructure {
+    public static abstract class Vehicle {
+        private String make;
+        private String model;
+
+        protected Vehicle() {
+        }
+
+        protected Vehicle(String make, String model) {
+            this.make = make;
+            this.model = model;
+        }
+
+        public String getMake() {
+            return make;
+        }
+
+        public void setMake(String make) {
+            this.make = make;
+        }
+
+        public String getModel() {
+            return model;
+        }
+
+        public void setModel(String model) {
+            this.model = model;
+        }
+    }
+
+    @JsonIgnoreProperties({ "model", "seatingCapacity" })
+    public static abstract class Car extends Vehicle {
+        private int seatingCapacity;
+        @JsonIgnore
+        private double topSpeed;
+
+        protected Car() {
+        }
+
+        protected Car(String make, String model, int seatingCapacity, double topSpeed) {
+            super(make, model);
+            this.seatingCapacity = seatingCapacity;
+            this.topSpeed = topSpeed;
+        }
+
+        public int getSeatingCapacity() {
+            return seatingCapacity;
+        }
+
+        public void setSeatingCapacity(int seatingCapacity) {
+            this.seatingCapacity = seatingCapacity;
+        }
+
+        public double getTopSpeed() {
+            return topSpeed;
+        }
+
+        public void setTopSpeed(double topSpeed) {
+            this.topSpeed = topSpeed;
+        }
+    }
+
+    public static class Sedan extends Car {
+        public Sedan() {
+        }
+
+        public Sedan(String make, String model, int seatingCapacity, double topSpeed) {
+            super(make, model, seatingCapacity, topSpeed);
+        }
+    }
+
+    public static class Crossover extends Car {
+        private double towingCapacity;
+
+        public Crossover() {
+        }
+
+        public Crossover(String make, String model, int seatingCapacity, double topSpeed, double towingCapacity) {
+            super(make, model, seatingCapacity, topSpeed);
+            this.towingCapacity = towingCapacity;
+        }
+
+        public double getTowingCapacity() {
+            return towingCapacity;
+        }
+
+        public void setTowingCapacity(double towingCapacity) {
+            this.towingCapacity = towingCapacity;
+        }
+    }
+}

jackson/src/test/java/com/baeldung/jackson/inheritance/IgnoranceMixinOrIntrospection.java

@@ -0,0 +1,91 @@
+package com.baeldung.jackson.inheritance;
+
+public class IgnoranceMixinOrIntrospection {
+    public static abstract class Vehicle {
+        private String make;
+        private String model;
+
+        protected Vehicle() {
+        }
+
+        protected Vehicle(String make, String model) {
+            this.make = make;
+            this.model = model;
+        }
+
+        public String getMake() {
+            return make;
+        }
+
+        public void setMake(String make) {
+            this.make = make;
+        }
+
+        public String getModel() {
+            return model;
+        }
+
+        public void setModel(String model) {
+            this.model = model;
+        }
+    }
+
+    public static abstract class Car extends Vehicle {
+        private int seatingCapacity;
+        private double topSpeed;
+
+        protected Car() {
+        }
+
+        protected Car(String make, String model, int seatingCapacity, double topSpeed) {
+            super(make, model);
+            this.seatingCapacity = seatingCapacity;
+            this.topSpeed = topSpeed;
+        }
+
+        public int getSeatingCapacity() {
+            return seatingCapacity;
+        }
+
+        public void setSeatingCapacity(int seatingCapacity) {
+            this.seatingCapacity = seatingCapacity;
+        }
+
+        public double getTopSpeed() {
+            return topSpeed;
+        }
+
+        public void setTopSpeed(double topSpeed) {
+            this.topSpeed = topSpeed;
+        }
+    }
+
+    public static class Sedan extends Car {
+        public Sedan() {
+        }
+
+        public Sedan(String make, String model, int seatingCapacity, double topSpeed) {
+            super(make, model, seatingCapacity, topSpeed);
+        }
+    }
+
+    public static class Crossover extends Car {
+        private double towingCapacity;
+
+        public Crossover() {
+        }
+
+        public Crossover(String make, String model, int seatingCapacity, double topSpeed, double towingCapacity) {
+            super(make, model, seatingCapacity, topSpeed);
+            this.towingCapacity = towingCapacity;
+        }
+
+        public double getTowingCapacity() {
+            return towingCapacity;
+        }
+
+        public void setTowingCapacity(double towingCapacity) {
+            this.towingCapacity = towingCapacity;
+        }
+    }
+}

jackson/src/test/java/com/baeldung/jackson/inheritance/IgnoranceTest.java

@@ -0,0 +1,92 @@
+package com.baeldung.jackson.inheritance;
+
+import static org.junit.Assert.assertThat;
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.CoreMatchers.not;
+
+import org.junit.Test;
+
+import java.util.List;
+import java.util.ArrayList;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.introspect.AnnotatedMember;
+import com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector;
+
+public class IgnoranceTest {
+    private static abstract class CarMixIn {
+        @JsonIgnore
+        public String make;
+        @JsonIgnore
+        public String topSpeed;
+    }
+
+    private static class IgnoranceIntrospector extends JacksonAnnotationIntrospector {
+        private static final long serialVersionUID = 1422295680188892323L;
+
+        public boolean hasIgnoreMarker(AnnotatedMember m) {
+            return m.getDeclaringClass() == IgnoranceMixinOrIntrospection.Vehicle.class && m.getName() == "model" || m.getDeclaringClass() == IgnoranceMixinOrIntrospection.Car.class || m.getName() == "towingCapacity" || super.hasIgnoreMarker(m);
+        }
+    }
+
+    @Test
+    public void givenAnnotations_whenIgnoringProperties_thenCorrect() throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+
+        IgnoranceAnnotationStructure.Sedan sedan = new IgnoranceAnnotationStructure.Sedan("Mercedes-Benz", "S500", 5, 250.0);
+        IgnoranceAnnotationStructure.Crossover crossover = new IgnoranceAnnotationStructure.Crossover("BMW", "X6", 5, 250.0, 6000.0);
+
+        List<IgnoranceAnnotationStructure.Vehicle> vehicles = new ArrayList<>();
+        vehicles.add(sedan);
+        vehicles.add(crossover);
+
+        String jsonDataString = mapper.writeValueAsString(vehicles);
+
+        assertThat(jsonDataString, containsString("make"));
+        assertThat(jsonDataString, not(containsString("model")));
+        assertThat(jsonDataString, not(containsString("seatingCapacity")));
+        assertThat(jsonDataString, not(containsString("topSpeed")));
+        assertThat(jsonDataString, containsString("towingCapacity"));
+    }
+
+    @Test
+    public void givenMixIns_whenIgnoringProperties_thenCorrect() throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.addMixIn(IgnoranceMixinOrIntrospection.Car.class, CarMixIn.class);
+
+        String jsonDataString = instantiateAndSerializeObjects(mapper);
+
+        assertThat(jsonDataString, not(containsString("make")));
+        assertThat(jsonDataString, containsString("model"));
+        assertThat(jsonDataString, containsString("seatingCapacity"));
+        assertThat(jsonDataString, not(containsString("topSpeed")));
+        assertThat(jsonDataString, containsString("towingCapacity"));
+    }
+
+    @Test
+    public void givenIntrospection_whenIgnoringProperties_thenCorrect() throws JsonProcessingException {
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.setAnnotationIntrospector(new IgnoranceIntrospector());
+
+        String jsonDataString = instantiateAndSerializeObjects(mapper);
+
+        assertThat(jsonDataString, containsString("make"));
+        assertThat(jsonDataString, not(containsString("model")));
+        assertThat(jsonDataString, not(containsString("seatingCapacity")));
+        assertThat(jsonDataString, not(containsString("topSpeed")));
+        assertThat(jsonDataString, not(containsString("towingCapacity")));
+    }
+
+    private String instantiateAndSerializeObjects(ObjectMapper mapper) throws JsonProcessingException {
+        IgnoranceMixinOrIntrospection.Sedan sedan = new IgnoranceMixinOrIntrospection.Sedan("Mercedes-Benz", "S500", 5, 250.0);
+        IgnoranceMixinOrIntrospection.Crossover crossover = new IgnoranceMixinOrIntrospection.Crossover("BMW", "X6", 5, 250.0, 6000.0);
+
+        List<IgnoranceMixinOrIntrospection.Vehicle> vehicles = new ArrayList<>();
+        vehicles.add(sedan);
+        vehicles.add(crossover);
+
+        return mapper.writeValueAsString(vehicles);
+    }
+}

jackson/src/test/java/com/baeldung/jackson/inheritance/SubTypeConstructorStructure.java

@@ -0,0 +1,92 @@
+package com.baeldung.jackson.inheritance;
+
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class SubTypeConstructorStructure {
+    public static class Fleet {
+        private List<Vehicle> vehicles;
+
+        public List<Vehicle> getVehicles() {
+            return vehicles;
+        }
+
+        public void setVehicles(List<Vehicle> vehicles) {
+            this.vehicles = vehicles;
+        }
+    }
+
+    public static abstract class Vehicle {
+        private String make;
+        private String model;
+
+        protected Vehicle(String make, String model) {
+            this.make = make;
+            this.model = model;
+        }
+
+        public String getMake() {
+            return make;
+        }
+
+        public void setMake(String make) {
+            this.make = make;
+        }
+
+        public String getModel() {
+            return model;
+        }
+
+        public void setModel(String model) {
+            this.model = model;
+        }
+    }
+
+    public static class Car extends Vehicle {
+        private int seatingCapacity;
+        private double topSpeed;
+
+        @JsonCreator
+        public Car(@JsonProperty("make") String make, @JsonProperty("model") String model, @JsonProperty("seating") int seatingCapacity, @JsonProperty("topSpeed") double topSpeed) {
+            super(make, model);
+            this.seatingCapacity = seatingCapacity;
+            this.topSpeed = topSpeed;
+        }
+
+        public int getSeatingCapacity() {
+            return seatingCapacity;
+        }
+
+        public void setSeatingCapacity(int seatingCapacity) {
+            this.seatingCapacity = seatingCapacity;
+        }
+
+        public double getTopSpeed() {
+            return topSpeed;
+        }
+
+        public void setTopSpeed(double topSpeed) {
+            this.topSpeed = topSpeed;
+        }
+    }
+
+    public static class Truck extends Vehicle {
+        private double payloadCapacity;
+
+        @JsonCreator
+        public Truck(@JsonProperty("make") String make, @JsonProperty("model") String model, @JsonProperty("payload") double payloadCapacity) {
+            super(make, model);
+            this.payloadCapacity = payloadCapacity;
+        }
+
+        public double getPayloadCapacity() {
+            return payloadCapacity;
+        }
+
+        public void setPayloadCapacity(double payloadCapacity) {
+            this.payloadCapacity = payloadCapacity;
+        }
+    }
+}

jackson/src/test/java/com/baeldung/jackson/inheritance/SubTypeConversionStructure.java

@@ -0,0 +1,87 @@
+package com.baeldung.jackson.inheritance;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
+public class SubTypeConversionStructure {
+    public static abstract class Vehicle {
+        private String make;
+        private String model;
+
+        protected Vehicle() {
+        }
+
+        protected Vehicle(String make, String model) {
+            this.make = make;
+            this.model = model;
+        }
+
+        public String getMake() {
+            return make;
+        }
+
+        public void setMake(String make) {
+            this.make = make;
+        }
+
+        public String getModel() {
+            return model;
+        }
+
+        public void setModel(String model) {
+            this.model = model;
+        }
+    }
+
+    public static class Car extends Vehicle {
+        @JsonIgnore
+        private int seatingCapacity;
+        @JsonIgnore
+        private double topSpeed;
+
+        public Car() {
+        }
+
+        public Car(String make, String model, int seatingCapacity, double topSpeed) {
+            super(make, model);
+            this.seatingCapacity = seatingCapacity;
+            this.topSpeed = topSpeed;
+        }
+
+        public int getSeatingCapacity() {
+            return seatingCapacity;
+        }
+
+        public void setSeatingCapacity(int seatingCapacity) {
+            this.seatingCapacity = seatingCapacity;
+        }
+
+        public double getTopSpeed() {
+            return topSpeed;
+        }
+
+        public void setTopSpeed(double topSpeed) {
+            this.topSpeed = topSpeed;
+        }
+    }
+
+    public static class Truck extends Vehicle {
+        @JsonIgnore
+        private double payloadCapacity;
+
+        public Truck() {
+        }
+
+        public Truck(String make, String model, double payloadCapacity) {
+            super(make, model);
+            this.payloadCapacity = payloadCapacity;
+        }
+
+        public double getPayloadCapacity() {
+            return payloadCapacity;
+        }
+
+        public void setPayloadCapacity(double payloadCapacity) {
+            this.payloadCapacity = payloadCapacity;
+        }
+    }
+}

jackson/src/test/java/com/baeldung/jackson/inheritance/SubTypeHandlingTest.java

@@ -0,0 +1,43 @@
+package com.baeldung.jackson.inheritance;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.io.IOException;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class SubTypeHandlingTest {
+    @Test
+    public void givenSubTypes_whenConvertingObjects_thenDataValuesArePreserved() {
+        ObjectMapper mapper = new ObjectMapper();
+
+        SubTypeConversionStructure.Car car = new SubTypeConversionStructure.Car("Mercedes-Benz", "S500", 5, 250.0);
+        SubTypeConversionStructure.Truck truck = mapper.convertValue(car, SubTypeConversionStructure.Truck.class);
+
+        assertEquals("Mercedes-Benz", truck.getMake());
+        assertEquals("S500", truck.getModel());
+    }
+    
+    @Test
+    public void givenSubType_whenNotUsingNoArgsConstructors_thenSucceed() throws IOException{
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.enableDefaultTyping();
+        
+        SubTypeConstructorStructure.Car car = new SubTypeConstructorStructure.Car("Mercedes-Benz", "S500", 5, 250.0);
+        SubTypeConstructorStructure.Truck truck = new SubTypeConstructorStructure.Truck("Isuzu", "NQR", 7500.0);
+
+        List<SubTypeConstructorStructure.Vehicle> vehicles = new ArrayList<>();
+        vehicles.add(car);
+        vehicles.add(truck);
+
+        SubTypeConstructorStructure.Fleet serializedFleet = new SubTypeConstructorStructure.Fleet();
+        serializedFleet.setVehicles(vehicles);
+
+        String jsonDataString = mapper.writeValueAsString(serializedFleet);
+        mapper.readValue(jsonDataString, SubTypeConstructorStructure.Fleet.class);
+    }
+}

jackson/src/test/java/com/baeldung/jackson/inheritance/TypeInfoAnnotatedStructure.java

@@ -0,0 +1,102 @@
+package com.baeldung.jackson.inheritance;
+
+import java.util.List;
+
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonSubTypes.Type;
+
+public class TypeInfoAnnotatedStructure {
+    public static class Fleet {
+        private List<Vehicle> vehicles;
+
+        public List<Vehicle> getVehicles() {
+            return vehicles;
+        }
+
+        public void setVehicles(List<Vehicle> vehicles) {
+            this.vehicles = vehicles;
+        }
+    }
+
+    @JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY, property = "type")
+    @JsonSubTypes({ @Type(value = Car.class, name = "car"), @Type(value = Truck.class, name = "truck") })
+    public static abstract class Vehicle {
+        private String make;
+        private String model;
+
+        protected Vehicle() {
+        }
+
+        protected Vehicle(String make, String model) {
+            this.make = make;
+            this.model = model;
+        }
+
+        public String getMake() {
+            return make;
+        }
+
+        public void setMake(String make) {
+            this.make = make;
+        }
+
+        public String getModel() {
+            return model;
+        }
+
+        public void setModel(String model) {
+            this.model = model;
+        }
+    }
+
+    public static class Car extends Vehicle {
+        private int seatingCapacity;
+        private double topSpeed;
+
+        public Car() {
+        }
+
+        public Car(String make, String model, int seatingCapacity, double topSpeed) {
+            super(make, model);
+            this.seatingCapacity = seatingCapacity;
+            this.topSpeed = topSpeed;
+        }
+
+        public int getSeatingCapacity() {
+            return seatingCapacity;
+        }
+
+        public void setSeatingCapacity(int seatingCapacity) {
+            this.seatingCapacity = seatingCapacity;
+        }
+
+        public double getTopSpeed() {
+            return topSpeed;
+        }
+
+        public void setTopSpeed(double topSpeed) {
+            this.topSpeed = topSpeed;
+        }
+    }
+
+    public static class Truck extends Vehicle {
+        private double payloadCapacity;
+
+        public Truck() {
+        }
+
+        public Truck(String make, String model, double payloadCapacity) {
+            super(make, model);
+            this.payloadCapacity = payloadCapacity;
+        }
+
+        public double getPayloadCapacity() {
+            return payloadCapacity;
+        }
+
+        public void setPayloadCapacity(double payloadCapacity) {
+            this.payloadCapacity = payloadCapacity;
+        }
+    }
+}

jackson/src/test/java/com/baeldung/jackson/inheritance/TypeInfoInclusionTest.java

@@ -0,0 +1,57 @@
+package com.baeldung.jackson.inheritance;
+
+import static org.junit.Assert.assertThat;
+import static org.hamcrest.CoreMatchers.instanceOf;
+
+import org.junit.Test;
+
+import java.util.List;
+import java.util.ArrayList;
+import java.io.IOException;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class TypeInfoInclusionTest {
+    @Test
+    public void givenTypeInfo_whenAnnotatingGlobally_thenTypesAreCorrectlyRecovered() throws IOException {
+        ObjectMapper mapper = new ObjectMapper();
+        mapper.enableDefaultTyping();
+
+        TypeInfoStructure.Car car = new TypeInfoStructure.Car("Mercedes-Benz", "S500", 5, 250.0);
+        TypeInfoStructure.Truck truck = new TypeInfoStructure.Truck("Isuzu", "NQR", 7500.0);
+
+        List<TypeInfoStructure.Vehicle> vehicles = new ArrayList<>();
+        vehicles.add(car);
+        vehicles.add(truck);
+
+        TypeInfoStructure.Fleet serializedFleet = new TypeInfoStructure.Fleet();
+        serializedFleet.setVehicles(vehicles);
+
+        String jsonDataString = mapper.writeValueAsString(serializedFleet);
+        TypeInfoStructure.Fleet deserializedFleet = mapper.readValue(jsonDataString, TypeInfoStructure.Fleet.class);
+
+        assertThat(deserializedFleet.getVehicles().get(0), instanceOf(TypeInfoStructure.Car.class));
+        assertThat(deserializedFleet.getVehicles().get(1), instanceOf(TypeInfoStructure.Truck.class));
+    }
+
+    @Test
+    public void givenTypeInfo_whenAnnotatingPerClass_thenTypesAreCorrectlyRecovered() throws IOException {
+        ObjectMapper mapper = new ObjectMapper();
+
+        TypeInfoAnnotatedStructure.Car car = new TypeInfoAnnotatedStructure.Car("Mercedes-Benz", "S500", 5, 250.0);
+        TypeInfoAnnotatedStructure.Truck truck = new TypeInfoAnnotatedStructure.Truck("Isuzu", "NQR", 7500.0);
+
+        List<TypeInfoAnnotatedStructure.Vehicle> vehicles = new ArrayList<>();
+        vehicles.add(car);
+        vehicles.add(truck);
+
+        TypeInfoAnnotatedStructure.Fleet serializedFleet = new TypeInfoAnnotatedStructure.Fleet();
+        serializedFleet.setVehicles(vehicles);
+
+        String jsonDataString = mapper.writeValueAsString(serializedFleet);
+        TypeInfoAnnotatedStructure.Fleet deserializedFleet = mapper.readValue(jsonDataString, TypeInfoAnnotatedStructure.Fleet.class);
+
+        assertThat(deserializedFleet.getVehicles().get(0), instanceOf(TypeInfoAnnotatedStructure.Car.class));
+        assertThat(deserializedFleet.getVehicles().get(1), instanceOf(TypeInfoAnnotatedStructure.Truck.class));
+    }
+}

jackson/src/test/java/com/baeldung/jackson/inheritance/TypeInfoStructure.java

@@ -0,0 +1,96 @@
+package com.baeldung.jackson.inheritance;
+
+import java.util.List;
+
+public class TypeInfoStructure {
+    public static class Fleet {
+        private List<Vehicle> vehicles;
+
+        public List<Vehicle> getVehicles() {
+            return vehicles;
+        }
+
+        public void setVehicles(List<Vehicle> vehicles) {
+            this.vehicles = vehicles;
+        }
+    }
+
+    public static abstract class Vehicle {
+        private String make;
+        private String model;
+
+        protected Vehicle() {
+        }
+
+        protected Vehicle(String make, String model) {
+            this.make = make;
+            this.model = model;
+        }
+
+        public String getMake() {
+            return make;
+        }
+
+        public void setMake(String make) {
+            this.make = make;
+        }
+
+        public String getModel() {
+            return model;
+        }
+
+        public void setModel(String model) {
+            this.model = model;
+        }
+    }
+
+    public static class Car extends Vehicle {
+        private int seatingCapacity;
+        private double topSpeed;
+
+        public Car() {
+        }
+
+        public Car(String make, String model, int seatingCapacity, double topSpeed) {
+            super(make, model);
+            this.seatingCapacity = seatingCapacity;
+            this.topSpeed = topSpeed;
+        }
+
+        public int getSeatingCapacity() {
+            return seatingCapacity;
+        }
+
+        public void setSeatingCapacity(int seatingCapacity) {
+            this.seatingCapacity = seatingCapacity;
+        }
+
+        public double getTopSpeed() {
+            return topSpeed;
+        }
+
+        public void setTopSpeed(double topSpeed) {
+            this.topSpeed = topSpeed;
+        }
+    }
+
+    public static class Truck extends Vehicle {
+        private double payloadCapacity;
+
+        public Truck() {
+        }
+
+        public Truck(String make, String model, double payloadCapacity) {
+            super(make, model);
+            this.payloadCapacity = payloadCapacity;
+        }
+
+        public double getPayloadCapacity() {
+            return payloadCapacity;
+        }
+
+        public void setPayloadCapacity(double payloadCapacity) {
+            this.payloadCapacity = payloadCapacity;
+        }
+    }
+}

jackson/src/test/java/com/baeldung/jackson/jsonview/Item.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.jsonview;
+package com.baeldung.jackson.jsonview;
 
 import com.fasterxml.jackson.annotation.JsonView;
 

jackson/src/test/java/com/baeldung/jackson/jsonview/MyBeanSerializerModifier.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.jsonview;
+package com.baeldung.jackson.jsonview;
 
 import java.util.List;
 

jackson/src/test/java/com/baeldung/jackson/jsonview/UpperCasingWriter.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.jsonview;
+package com.baeldung.jackson.jsonview;
 
 import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.databind.SerializerProvider;

jackson/src/test/java/com/baeldung/jackson/jsonview/User.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.jsonview;
+package com.baeldung.jackson.jsonview;
 
 import com.fasterxml.jackson.annotation.JsonView;
 

jackson/src/test/java/com/baeldung/jackson/jsonview/Views.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.jsonview;
+package com.baeldung.jackson.jsonview;
 
 public class Views {
     public static class Public {

jackson/src/test/java/com/baeldung/jackson/node/ExampleStructure.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.node;
+package com.baeldung.jackson.node;
 
 import java.io.IOException;
 import java.io.InputStream;

jackson/src/test/java/com/baeldung/jackson/node/NodeBean.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.node;
+package com.baeldung.jackson.node;
 
 public class NodeBean {
     private int id;

jackson/src/test/java/com/baeldung/jackson/node/NodeOperationTest.java

@@ -1,4 +1,4 @@
-package org.baeldung.jackson.node;
+package com.baeldung.jackson.node;
 
 import static org.hamcrest.CoreMatchers.containsString;
 import static org.junit.Assert.assertEquals;