Reduce fields not necessary.

Author: rachelshu

jackson/src/test/java/org/baeldung/jackson/field/MyDtoGetter.java

@@ -9,7 +9,7 @@ public MyDtoGetter() {
         super();
     }
 
-    public MyDtoGetter(final String stringValue, final int intValue, final boolean booleanValue) {
+    public MyDtoGetter(final String stringValue, final int intValue) {
         super();
 
         this.stringValue = stringValue;

jackson/src/test/java/org/baeldung/jackson/field/MyDtoGetterImplicitDeserialization.java

@@ -3,17 +3,15 @@
 public class MyDtoGetterImplicitDeserialization {
 
     private String stringValue;
-    public boolean booleanValue;
 
     public MyDtoGetterImplicitDeserialization() {
         super();
     }
 
-    public MyDtoGetterImplicitDeserialization(final String stringValue, final int intValue, final boolean booleanValue) {
+    public MyDtoGetterImplicitDeserialization(final String stringValue) {
         super();
 
         this.stringValue = stringValue;
-        this.booleanValue = booleanValue;
     }
 
     // API

jackson/src/test/java/org/baeldung/jackson/field/MyDtoSetter.java

@@ -2,26 +2,22 @@
 
 public class MyDtoSetter {
 
-    private String stringValue;
-    int intValue;
+    private int intValue;
+    public boolean booleanValue;
 
     public MyDtoSetter() {
         super();
     }
 
-    public MyDtoSetter(final String stringValue, final int intValue, final boolean booleanValue) {
+    public MyDtoSetter(final int intValue, final boolean booleanValue) {
         super();
 
-        this.stringValue = stringValue;
         this.intValue = intValue;
+        this.booleanValue = booleanValue;
     }
 
     // API
 
-    public String getStringValue() {
-        return stringValue;
-    }
-
     public void setIntValue(final int intValue) {
         this.intValue = intValue;
     }

jackson/src/test/java/org/baeldung/jackson/test/JacksonFieldUnitTest.java

@@ -23,7 +23,7 @@
 public class JacksonFieldUnitTest {
 
     @Test
-    public final void givenDifferentAccessLevels_whenPrivateOrPackage_thenNotSerializable_whenPublic_thenSerializable() throws JsonProcessingException {
+    public final void givenDifferentAccessLevels_whenPublic_thenSerializable() throws JsonProcessingException {
         final ObjectMapper mapper = new ObjectMapper();
 
         final MyDtoAccessLevel dtoObject = new MyDtoAccessLevel();
@@ -49,42 +49,39 @@ public final void givenDifferentAccessLevels_whenGetterAdded_thenSerializable()
 
     @Test
     public final void givenDifferentAccessLevels_whenGetterAdded_thenDeserializable() throws JsonProcessingException, JsonMappingException, IOException {
-        final String jsonAsString = "{\"stringValue\":\"dtoString\",\"booleanValue\":\"true\"}";
+        final String jsonAsString = "{\"stringValue\":\"dtoString\"}";
         final ObjectMapper mapper = new ObjectMapper();
 
         final MyDtoGetterImplicitDeserialization dtoObject = mapper.readValue(jsonAsString, MyDtoGetterImplicitDeserialization.class);
 
         assertNotNull(dtoObject);
         assertThat(dtoObject.getStringValue(), equalTo("dtoString"));
-        assertThat(dtoObject.booleanValue, equalTo(true));
     }
 
     @Test
     public final void givenDifferentAccessLevels_whenSetterAdded_thenDeserializable() throws JsonProcessingException, JsonMappingException, IOException {
-        final String jsonAsString = "{\"stringValue\":\"dtoString\",\"intValue\":1}";
+        final String jsonAsString = "{\"intValue\":1}";
         final ObjectMapper mapper = new ObjectMapper();
 
         final MyDtoSetter dtoObject = mapper.readValue(jsonAsString, MyDtoSetter.class);
 
         assertNotNull(dtoObject);
-        assertThat(dtoObject.getStringValue(), equalTo("dtoString"));
         assertThat(dtoObject.anotherGetIntValue(), equalTo(1));
     }
 
     @Test
-    public final void givenDifferentAccessLevels_whenSetterAdded_thenStillNotSerializable() throws JsonProcessingException, JsonMappingException, IOException {
+    public final void givenDifferentAccessLevels_whenSetterAdded_thenStillNotSerializable() throws JsonProcessingException {
         final ObjectMapper mapper = new ObjectMapper();
 
         final MyDtoSetter dtoObject = new MyDtoSetter();
 
         final String dtoAsString = mapper.writeValueAsString(dtoObject);
-        assertThat(dtoAsString, containsString("stringValue"));
         assertThat(dtoAsString, not(containsString("intValue")));
         System.out.println(dtoAsString);
     }
 
     @Test
-    public final void givenDifferentAccessLevels_whenSetVisibility_thenSerializable() throws JsonProcessingException, JsonMappingException, IOException {
+    public final void givenDifferentAccessLevels_whenSetVisibility_thenSerializable() throws JsonProcessingException {
         final ObjectMapper mapper = new ObjectMapper();
         mapper.setVisibility(PropertyAccessor.ALL, Visibility.NONE);
         mapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);