[JAVA-49493] Fixed tests

Author: panos-kakos

jackson-simple/src/main/java/com/baeldung/jackson/annotation/date/CustomDateDeserializer.java

@@ -15,7 +15,7 @@ public class CustomDateDeserializer extends StdDeserializer<Date> {
     private SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss");
 
     public CustomDateDeserializer() {
-        this(null);
+        super(Date.class);
     }
 
     public CustomDateDeserializer(final Class<?> vc) {

jackson-simple/src/main/java/com/baeldung/jackson/annotation/date/CustomDateSerializer.java

@@ -14,7 +14,7 @@ public class CustomDateSerializer extends StdSerializer<Date> {
     private SimpleDateFormat formatter = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss");
 
     public CustomDateSerializer() {
-        this(null);
+        super(Date.class);
     }
 
     public CustomDateSerializer(final Class<Date> t) {

jackson-simple/src/main/java/com/baeldung/jackson/annotation/deserialization/ItemDeserializerOnClass.java

@@ -14,7 +14,7 @@ public class ItemDeserializerOnClass extends StdDeserializer<ItemWithSerializer>
     private static final long serialVersionUID = 5579141241817332594L;
 
     public ItemDeserializerOnClass() {
-        this(null);
+        super(ItemWithSerializer.class);
     }
 
     public ItemDeserializerOnClass(final Class<?> vc) {

jackson-simple/src/main/java/com/baeldung/jackson/annotation/serialization/ItemSerializer.java

@@ -11,7 +11,7 @@ public class ItemSerializer extends StdSerializer<Item> {
     private static final long serialVersionUID = 6739170890621978901L;
 
     public ItemSerializer() {
-        this(null);
+        super(Item.class);
     }
 
     public ItemSerializer(final Class<Item> t) {

jackson-simple/src/main/java/com/baeldung/jackson/annotation/serialization/ItemSerializerOnClass.java

@@ -11,7 +11,7 @@ public class ItemSerializerOnClass extends StdSerializer<ItemWithSerializer> {
     private static final long serialVersionUID = -1760959597313610409L;
 
     public ItemSerializerOnClass() {
-        this(null);
+        super(ItemWithSerializer.class);
     }
 
     public ItemSerializerOnClass(final Class<ItemWithSerializer> t) {

jackson-simple/src/main/java/com/baeldung/jackson/objectmapper/CustomCarDeserializer.java

@@ -18,7 +18,7 @@ public class CustomCarDeserializer extends StdDeserializer<Car> {
     private final Logger Logger = LoggerFactory.getLogger(getClass());
 
     public CustomCarDeserializer() {
-        this(null);
+        super(Car.class);
     }
 
     public CustomCarDeserializer(final Class<?> vc) {

jackson-simple/src/main/java/com/baeldung/jackson/objectmapper/CustomCarSerializer.java

@@ -13,7 +13,7 @@ public class CustomCarSerializer extends StdSerializer<Car> {
     private static final long serialVersionUID = 1396140685442227917L;
 
     public CustomCarSerializer() {
-        this(null);
+        super(Car.class);
     }
 
     public CustomCarSerializer(final Class<Car> t) {

jackson-simple/src/test/java/com/baeldung/jackson/unknownproperties/UnknownPropertiesUnitTest.java

@@ -33,7 +33,9 @@ public final void givenNotAllFieldsHaveValuesInJson_whenDeserializingAJsonToACla
     @Test(expected = UnrecognizedPropertyException.class)
     public final void givenJsonHasUnknownValues_whenDeserializingAJsonToAClass_thenExceptionIsThrown() throws StreamReadException, DatabindException, IOException {
         final String jsonAsString = "{\"stringValue\":\"a\",\"intValue\":1,\"booleanValue\":true,\"stringValue2\":\"something\"}";
-        final ObjectMapper mapper = new ObjectMapper();
+        final ObjectMapper mapper = JsonMapper.builder()
+            .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, true)
+            .build();
 
         final MyDto readValue = mapper.readValue(jsonAsString, MyDto.class);