Change default Jackson behaviour to not serialize nulls

src/main/java/me/braydon/mc/model/MinecraftServer.java

@@ -23,7 +23,6 @@
  */
 package me.braydon.mc.model;
 
-import com.fasterxml.jackson.annotation.JsonInclude;
 import lombok.*;
 import me.braydon.mc.common.ColorUtils;
 import me.braydon.mc.service.pinger.MinecraftServerPinger;
@@ -68,7 +67,7 @@ public class MinecraftServer {
     /**
      * Player count data for a server.
      */
-    @AllArgsConstructor @Getter @ToString @JsonInclude(JsonInclude.Include.NON_NULL)
+    @AllArgsConstructor @Getter @ToString
     public static class Players {
         /**
          * The online players on this server.

src/main/java/me/braydon/mc/model/Player.java

@@ -23,7 +23,6 @@
  */
 package me.braydon.mc.model;
 
-import com.fasterxml.jackson.annotation.JsonInclude;
 import lombok.*;
 import org.springframework.data.annotation.Id;
 
@@ -36,7 +35,7 @@ import java.util.UUID;
  */
 @AllArgsConstructor @Getter
 @EqualsAndHashCode(onlyExplicitlyIncluded = true)
-@ToString @JsonInclude(JsonInclude.Include.NON_NULL)
+@ToString
 public class Player {
     /**
      * The unique id of this player.

src/main/java/me/braydon/mc/model/server/JavaMinecraftServer.java

@@ -23,7 +23,6 @@
  */
 package me.braydon.mc.model.server;
 
-import com.fasterxml.jackson.annotation.JsonInclude;
 import com.google.gson.annotations.SerializedName;
 import lombok.*;
 import me.braydon.mc.common.JavaMinecraftVersion;
@@ -39,7 +38,7 @@ import net.md_5.bungee.chat.ComponentSerializer;
  *
  * @author Braydon
  */
-@Setter @Getter @ToString(callSuper = true) @JsonInclude(JsonInclude.Include.NON_NULL)
+@Setter @Getter @ToString(callSuper = true)
 public final class JavaMinecraftServer extends MinecraftServer {
     /**
      * The version information of this server.
@@ -115,7 +114,7 @@ public final class JavaMinecraftServer extends MinecraftServer {
     /**
      * Version information for a server.
      */
-    @AllArgsConstructor @Getter @ToString @JsonInclude(JsonInclude.Include.NON_NULL)
+    @AllArgsConstructor @Getter @ToString
     public static class Version {
         /**
          * The version name of the server.

src/main/resources/application.yml

@@ -21,6 +21,10 @@ spring:
       database: 0
       auth: "" # Leave blank for no auth
 
+  # Don't serialize null values by default with Jackson
+  jackson:
+    default-property-inclusion: non_null
+
   # Ignore
   banner:
     location: "classpath:banner.txt"