Convert game thread events to singletons (#794)

* Convert game thread events to singletons

* Fix checkstyle

* Fix copy paste error

runelite-api/src/main/java/net/runelite/api/events/AnimationChanged.java

@@ -20,6 +20,13 @@ import net.runelite.api.Actor;
 @Data
 public class AnimationChanged
 {
+	public static final AnimationChanged INSTANCE = new AnimationChanged();
+
+	private AnimationChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The actor that has entered a new animation.
 	 */

runelite-api/src/main/java/net/runelite/api/events/AreaSoundEffectPlayed.java

@@ -29,6 +29,13 @@ import lombok.Data;
 @Data
 public class AreaSoundEffectPlayed
 {
+	public static final AreaSoundEffectPlayed INSTANCE = new AreaSoundEffectPlayed();
+
+	private AreaSoundEffectPlayed()
+	{
+		// noop
+	}
+
 	private int soundId;
 	private int sceneX;
 	private int sceneY;

runelite-api/src/main/java/net/runelite/api/events/BeforeMenuRender.java

@@ -29,6 +29,13 @@ import lombok.Data;
 @Data
 public class BeforeMenuRender
 {
+	public static final BeforeMenuRender INSTANCE = new BeforeMenuRender();
+
+	private BeforeMenuRender()
+	{
+		// noop
+	}
+
 	private boolean consumed;
 
 	public void consume()

runelite-api/src/main/java/net/runelite/api/events/BeforeRender.java

@@ -29,4 +29,10 @@ package net.runelite.api.events;
  */
 public class BeforeRender
 {
+	public static final BeforeRender INSTANCE = new BeforeRender();
+
+	private BeforeRender()
+	{
+		// noop
+	}
 }

runelite-api/src/main/java/net/runelite/api/events/BoostedLevelChanged.java

@@ -44,6 +44,13 @@ import lombok.Data;
 @Data
 public class BoostedLevelChanged
 {
+	public static final BoostedLevelChanged INSTANCE = new BoostedLevelChanged();
+
+	private BoostedLevelChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The skill that has had its level modified.
 	 */

runelite-api/src/main/java/net/runelite/api/events/CannonballFired.java

@@ -29,4 +29,10 @@ package net.runelite.api.events;
  */
 public class CannonballFired
 {
+	public static final CannonballFired INSTANCE = new CannonballFired();
+
+	private CannonballFired()
+	{
+		// noop
+	}
 }

runelite-api/src/main/java/net/runelite/api/events/ChatMessage.java

@@ -28,7 +28,6 @@ import net.runelite.api.ChatMessageType;
 import net.runelite.api.MessageNode;
 import lombok.AllArgsConstructor;
 import lombok.Data;
-import lombok.NoArgsConstructor;
 
 /**
  * An event where a new chat message is received.
@@ -40,9 +39,15 @@ import lombok.NoArgsConstructor;
  */
 @Data
 @AllArgsConstructor
-@NoArgsConstructor
 public class ChatMessage
 {
+	public static final ChatMessage INSTANCE = new ChatMessage();
+
+	private ChatMessage()
+	{
+		// noop
+	}
+
 	/**
 	 * The underlying MessageNode for the message.
 	 */

runelite-api/src/main/java/net/runelite/api/events/ClanChanged.java

@@ -24,14 +24,21 @@
  */
 package net.runelite.api.events;
 
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where the client has joined or left a clan chat.
  */
-@Value
+@Data
 public class ClanChanged
 {
+	public static final ClanChanged INSTANCE = new ClanChanged();
+
+	private ClanChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * Whether or not the client is now in a clan chat.
 	 */

runelite-api/src/main/java/net/runelite/api/events/ClanMemberJoined.java

@@ -25,11 +25,18 @@
 package net.runelite.api.events;
 
 import net.runelite.api.ClanMember;
-import lombok.Value;
+import lombok.Data;
 
-@Value
+@Data
 public class ClanMemberJoined
 {
+	public static final ClanMemberJoined INSTANCE = new ClanMemberJoined();
+
+	private ClanMemberJoined()
+	{
+		// noop
+	}
+
 	/**
 	 * The ClanMember that joined
 	 */

runelite-api/src/main/java/net/runelite/api/events/ClanMemberLeft.java

@@ -25,11 +25,18 @@
 package net.runelite.api.events;
 
 import net.runelite.api.ClanMember;
-import lombok.Value;
+import lombok.Data;
 
-@Value
+@Data
 public class ClanMemberLeft
 {
+	public static final ClanMemberLeft INSTANCE = new ClanMemberLeft();
+
+	private ClanMemberLeft()
+	{
+		// noop
+	}
+
 	/**
 	 * The ClanMember that left
 	 */

runelite-api/src/main/java/net/runelite/api/events/ClientTick.java

@@ -29,4 +29,10 @@ package net.runelite.api.events;
  */
 public class ClientTick
 {
+	public static final ClientTick INSTANCE = new ClientTick();
+
+	private ClientTick()
+	{
+		// noop
+	}
 }

runelite-api/src/main/java/net/runelite/api/events/CommandExecuted.java

@@ -24,7 +24,7 @@
  */
 package net.runelite.api.events;
 
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where a command has been used in the chat.
@@ -41,9 +41,16 @@ import lombok.Value;
  * set the command field to an empty string. For example, the message ":: hello world!"
  * will set command to "" and arguments to ["hello", "world!"].
  */
-@Value
+@Data
 public class CommandExecuted
 {
+	public static final CommandExecuted INSTANCE = new CommandExecuted();
+
+	private CommandExecuted()
+	{
+		// noop
+	}
+
 	/**
 	 * The name of the command entered.
 	 */

runelite-api/src/main/java/net/runelite/api/events/DecorativeObjectChanged.java

@@ -35,6 +35,13 @@ import lombok.Data;
 @Data
 public class DecorativeObjectChanged
 {
+	public static final DecorativeObjectChanged INSTANCE = new DecorativeObjectChanged();
+
+	private DecorativeObjectChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/DecorativeObjectDespawned.java

@@ -35,6 +35,13 @@ import lombok.Data;
 @Data
 public class DecorativeObjectDespawned
 {
+	public static final DecorativeObjectDespawned INSTANCE = new DecorativeObjectDespawned();
+
+	private DecorativeObjectDespawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/DecorativeObjectSpawned.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class DecorativeObjectSpawned
 {
+	public static final DecorativeObjectSpawned INSTANCE = new DecorativeObjectSpawned();
+
+	private DecorativeObjectSpawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/DraggingWidgetChanged.java

@@ -33,6 +33,13 @@ import lombok.Data;
 @Data
 public class DraggingWidgetChanged
 {
+	public static final DraggingWidgetChanged INSTANCE = new DraggingWidgetChanged();
+
+	private DraggingWidgetChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * Whether a widget is currently being dragged.
 	 */

runelite-api/src/main/java/net/runelite/api/events/ExperienceChanged.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class ExperienceChanged
 {
+	public static final ExperienceChanged INSTANCE = new ExperienceChanged();
+
+	private ExperienceChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The modified skill.
 	 */

runelite-api/src/main/java/net/runelite/api/events/GameObjectChanged.java

@@ -34,6 +34,13 @@ import net.runelite.api.Tile;
 @Data
 public class GameObjectChanged
 {
+	public static final GameObjectChanged INSTANCE = new GameObjectChanged();
+
+	private GameObjectChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/GameObjectDespawned.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class GameObjectDespawned
 {
+	public static final GameObjectDespawned INSTANCE = new GameObjectDespawned();
+
+	private GameObjectDespawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/GameObjectSpawned.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class GameObjectSpawned
 {
+	public static final GameObjectSpawned INSTANCE = new GameObjectSpawned();
+
+	private GameObjectSpawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/GameStateChanged.java

@@ -33,6 +33,13 @@ import lombok.Data;
 @Data
 public class GameStateChanged
 {
+	public static final GameStateChanged INSTANCE = new GameStateChanged();
+
+	private GameStateChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The new game state.
 	 */

runelite-api/src/main/java/net/runelite/api/events/GameTick.java

@@ -24,8 +24,6 @@
  */
 package net.runelite.api.events;
 
-import lombok.Data;
-
 // The NPC update event seem to run every server tick,
 // but having the game tick event after all packets
 // have been processed is typically more useful.
@@ -43,7 +41,12 @@ import lombok.Data;
  * Note that occurrences that take place purely on the client, such as right
  * click menus, are independent of the game tick.
  */
-@Data
 public class GameTick
 {
+	public static final GameTick INSTANCE = new GameTick();
+
+	private GameTick()
+	{
+		// noop
+	}
 }

runelite-api/src/main/java/net/runelite/api/events/GrandExchangeOfferChanged.java

@@ -44,6 +44,13 @@ import lombok.Data;
 @Data
 public class GrandExchangeOfferChanged
 {
+	public static final GrandExchangeOfferChanged INSTANCE = new GrandExchangeOfferChanged();
+
+	private GrandExchangeOfferChanged()
+	{
+		// noop
+	}
+	
 	/**
 	 * The offer that has been modified.
 	 */

runelite-api/src/main/java/net/runelite/api/events/GraphicsObjectCreated.java

@@ -25,16 +25,24 @@
 package net.runelite.api.events;
 
 import net.runelite.api.GraphicsObject;
-import lombok.Value;
+
+import lombok.Data;
 
 /**
  * An event where a new {@link GraphicsObject} has been created.
  */
-@Value
+@Data
 public class GraphicsObjectCreated
 {
+	public static final GraphicsObjectCreated INSTANCE = new GraphicsObjectCreated();
+
+	private GraphicsObjectCreated()
+	{
+		// noop
+	}
+
 	/**
 	 * The newly created graphics object.
 	 */
-	private final GraphicsObject graphicsObject;
+	private GraphicsObject graphicsObject;
 }

runelite-api/src/main/java/net/runelite/api/events/GroundObjectChanged.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class GroundObjectChanged
 {
+	public static final GroundObjectChanged INSTANCE = new GroundObjectChanged();
+
+	private GroundObjectChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/GroundObjectDespawned.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class GroundObjectDespawned
 {
+	public static final GroundObjectDespawned INSTANCE = new GroundObjectDespawned();
+
+	private GroundObjectDespawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/GroundObjectSpawned.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class GroundObjectSpawned
 {
+	public static final GroundObjectSpawned INSTANCE = new GroundObjectSpawned();
+
+	private GroundObjectSpawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/HitsplatApplied.java

@@ -38,6 +38,13 @@ import lombok.Data;
 @Data
 public class HitsplatApplied
 {
+	public static final HitsplatApplied INSTANCE = new HitsplatApplied();
+
+	private HitsplatApplied()
+	{
+		// noop
+	}
+
 	/**
 	 * The actor the hitsplat was applied to.
 	 */

runelite-api/src/main/java/net/runelite/api/events/InteractChanged.java

@@ -30,5 +30,12 @@ import lombok.Data;
 @Data
 public class InteractChanged
 {
+	public static final InteractChanged INSTANCE = new InteractChanged();
+
+	private InteractChanged()
+	{
+		// noop
+	}
+
 	private Actor actor;
 }

runelite-api/src/main/java/net/runelite/api/events/InteractingChanged.java

@@ -1,18 +1,26 @@
 package net.runelite.api.events;
 
 import net.runelite.api.Actor;
-import lombok.Value;
+
+import lombok.Data;
 
 /**
  * An event called when the actor an actor is interacting with changes
  */
-@Value
+@Data
 public class InteractingChanged
 {
-	private final Actor source;
+	public static final InteractingChanged INSTANCE = new InteractingChanged();
+
+	private InteractingChanged()
+	{
+		// noop
+	}
+
+	private Actor source;
 
 	/**
 	 * Target actor, may be null
 	 */
-	private final Actor target;
+	private Actor target;
 }

runelite-api/src/main/java/net/runelite/api/events/ItemContainerChanged.java

@@ -25,7 +25,8 @@
 package net.runelite.api.events;
 
 import net.runelite.api.ItemContainer;
-import lombok.Value;
+
+import lombok.Data;
 
 /**
  * An event called whenever the stack size of an {@link api.Item}
@@ -38,11 +39,18 @@ import lombok.Value;
  *     <li>Dropping an item</li>
  * </ul>
  */
-@Value
+@Data
 public class ItemContainerChanged
 {
+	public static final ItemContainerChanged INSTANCE = new ItemContainerChanged();
+
+	private ItemContainerChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The modified item container.
 	 */
-	private final ItemContainer itemContainer;
+	private ItemContainer itemContainer;
 }

runelite-api/src/main/java/net/runelite/api/events/ItemDespawned.java

@@ -26,15 +26,23 @@ package net.runelite.api.events;
 
 import net.runelite.api.Item;
 import net.runelite.api.Tile;
-import lombok.Value;
+
+import lombok.Data;
 
 /**
  * Called when an item pile despawns from the ground. When the client loads a new scene,
  * all item piles are implicitly despawned, and despawn events will not be sent.
  */
-@Value
+@Data
 public class ItemDespawned
 {
-	private final Tile tile;
-	private final Item item;
+	public static final ItemDespawned INSTANCE = new ItemDespawned();
+
+	private ItemDespawned()
+	{
+		// noop
+	}
+
+	private Tile tile;
+	private Item item;
 }

runelite-api/src/main/java/net/runelite/api/events/ItemQuantityChanged.java

@@ -26,16 +26,23 @@ package net.runelite.api.events;
 
 import net.runelite.api.Item;
 import net.runelite.api.Tile;
-import lombok.Value;
+import lombok.Data;
 
 /**
  * Called when the quantity of an item pile changes.
  */
-@Value
+@Data
 public class ItemQuantityChanged
 {
-	private final Item item;
-	private final Tile tile;
-	private final int oldQuantity;
-	private final int newQuantity;
+	public static final ItemQuantityChanged INSTANCE = new ItemQuantityChanged();
+
+	private ItemQuantityChanged()
+	{
+		// noop
+	}
+
+	private Item item;
+	private Tile tile;
+	private int oldQuantity;
+	private int newQuantity;
 }

runelite-api/src/main/java/net/runelite/api/events/ItemSpawned.java

@@ -26,15 +26,22 @@ package net.runelite.api.events;
 
 import net.runelite.api.Item;
 import net.runelite.api.Tile;
-import lombok.Value;
+import lombok.Data;
 
 /**
  * Called when an item pile spawns on the ground. When the client loads a new scene,
  * all item piles are implicitly reset and a new spawn event will be sent.
  */
-@Value
+@Data
 public class ItemSpawned
 {
-	private final Tile tile;
-	private final Item item;
+	public static final ItemSpawned INSTANCE = new ItemSpawned();
+
+	private ItemSpawned()
+	{
+		// noop
+	}
+
+	private Tile tile;
+	private Item item;
 }

runelite-api/src/main/java/net/runelite/api/events/LocalPlayerDeath.java

@@ -29,4 +29,10 @@ package net.runelite.api.events;
  */
 public class LocalPlayerDeath
 {
+	public static final LocalPlayerDeath INSTANCE = new LocalPlayerDeath();
+
+	private LocalPlayerDeath()
+	{
+		// noop
+	}
 }

runelite-api/src/main/java/net/runelite/api/events/MenuEntryAdded.java

@@ -35,10 +35,17 @@ import net.runelite.api.MenuEntry;
 @AllArgsConstructor
 public class MenuEntryAdded
 {
+	public static final MenuEntryAdded INSTANCE = new MenuEntryAdded();
+
+	private MenuEntryAdded()
+	{
+		// noop
+	}
+
 	/**
 	 * The MenuEntry object that was actually added
 	 */
-	private final MenuEntry menuEntry;
+	private MenuEntry menuEntry;
 
 	public String getOption()
 	{

runelite-api/src/main/java/net/runelite/api/events/MenuOpened.java

@@ -33,6 +33,13 @@ import lombok.Data;
 @Data
 public class MenuOpened
 {
+	public static final MenuOpened INSTANCE = new MenuOpened();
+
+	private MenuOpened()
+	{
+		// noop
+	}
+
 	/**
 	 * The menu entries in the newly opened menu.
 	 * <p>

runelite-api/src/main/java/net/runelite/api/events/MenuOptionClicked.java

@@ -42,6 +42,13 @@ import net.runelite.api.MenuEntry;
 @Data
 public class MenuOptionClicked
 {
+	public static final MenuOptionClicked INSTANCE = new MenuOptionClicked();
+
+	private MenuOptionClicked()
+	{
+		// noop
+	}
+
 	public MenuOptionClicked(MenuEntry entry)
 	{
 		menuEntry = entry;

runelite-api/src/main/java/net/runelite/api/events/MenuShouldLeftClick.java

@@ -33,6 +33,13 @@ import lombok.Data;
 @Data
 public class MenuShouldLeftClick
 {
+	public static final MenuShouldLeftClick INSTANCE = new MenuShouldLeftClick();
+
+	private MenuShouldLeftClick()
+	{
+		// noop
+	}
+
 	/**
 	 * If set to true, the menu will open on left click.
 	 */

runelite-api/src/main/java/net/runelite/api/events/NameableNameChanged.java

@@ -25,16 +25,23 @@
 package net.runelite.api.events;
 
 import net.runelite.api.Nameable;
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where a {@link Nameable} has had their name changed.
  */
-@Value
+@Data
 public class NameableNameChanged
 {
+	public static final NameableNameChanged INSTANCE = new NameableNameChanged();
+
+	private NameableNameChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The nameable that changed names.
 	 */
-	private final Nameable nameable;
+	private Nameable nameable;
 }

runelite-api/src/main/java/net/runelite/api/events/NpcActionChanged.java

@@ -33,6 +33,13 @@ import net.runelite.api.NPCDefinition;
 @Data
 public class NpcActionChanged
 {
+	public static final NpcActionChanged INSTANCE = new NpcActionChanged();
+
+	private NpcActionChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The NPC composition that has been changed.
 	 */

runelite-api/src/main/java/net/runelite/api/events/NpcDespawned.java

@@ -26,18 +26,25 @@ package net.runelite.api.events;
 
 import net.runelite.api.Actor;
 import net.runelite.api.NPC;
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where an {@link NPC} has despawned.
  */
-@Value
+@Data
 public class NpcDespawned
 {
+	public static final NpcDespawned INSTANCE = new NpcDespawned();
+
+	private NpcDespawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The despawned NPC.
 	 */
-	private final NPC npc;
+	private NPC npc;
 
 	public Actor getActor()
 	{

runelite-api/src/main/java/net/runelite/api/events/NpcSpawned.java

@@ -26,18 +26,25 @@ package net.runelite.api.events;
 
 import net.runelite.api.Actor;
 import net.runelite.api.NPC;
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where an {@link NPC} has spawned.
  */
-@Value
+@Data
 public class NpcSpawned
 {
+	public static final NpcSpawned INSTANCE = new NpcSpawned();
+
+	private NpcSpawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The spawned NPC.
 	 */
-	private final NPC npc;
+	private NPC npc;
 
 	public Actor getActor()
 	{

runelite-api/src/main/java/net/runelite/api/events/OverheadTextChanged.java

@@ -1,12 +1,19 @@
 package net.runelite.api.events;
 
 import net.runelite.api.Actor;
-import lombok.Value;
+import lombok.Data;
 
-@Value
+@Data
 public class OverheadTextChanged
 {
-	private final Actor actor;
+	public static final OverheadTextChanged INSTANCE = new OverheadTextChanged();
 
-	private final String overheadText;
+	private OverheadTextChanged()
+	{
+		// noop
+	}
+
+	private Actor actor;
+
+	private String overheadText;
 }

runelite-api/src/main/java/net/runelite/api/events/PlayerDespawned.java

@@ -26,20 +26,27 @@ package net.runelite.api.events;
 
 import net.runelite.api.Actor;
 import net.runelite.api.Player;
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where a {@link Player} has despawned.
  * <p>
  * Note: This event does not get called for the local player.
  */
-@Value
+@Data
 public class PlayerDespawned
 {
+	public static final PlayerDespawned INSTANCE = new PlayerDespawned();
+
+	private PlayerDespawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The despawned player.
 	 */
-	private final Player player;
+	private Player player;
 
 	public Actor getActor()
 	{

runelite-api/src/main/java/net/runelite/api/events/PlayerMenuOptionClicked.java

@@ -33,6 +33,13 @@ import lombok.Data;
 @Data
 public class PlayerMenuOptionClicked
 {
+	public static final PlayerMenuOptionClicked INSTANCE = new PlayerMenuOptionClicked();
+
+	private PlayerMenuOptionClicked()
+	{
+		// noop
+	}
+
 	/**
 	 * The menu option clicked.
 	 */

runelite-api/src/main/java/net/runelite/api/events/PlayerMenuOptionsChanged.java

@@ -29,6 +29,13 @@ import lombok.Data;
 @Data
 public class PlayerMenuOptionsChanged
 {
+	public static final PlayerMenuOptionsChanged INSTANCE = new PlayerMenuOptionsChanged();
+
+	private PlayerMenuOptionsChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * Index in playerOptions which changed.
 	 */

runelite-api/src/main/java/net/runelite/api/events/PlayerSpawned.java

@@ -26,18 +26,25 @@ package net.runelite.api.events;
 
 import net.runelite.api.Actor;
 import net.runelite.api.Player;
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where a {@link Player} has spawned.
  */
-@Value
+@Data
 public class PlayerSpawned
 {
+	public static final PlayerSpawned INSTANCE = new PlayerSpawned();
+
+	private PlayerSpawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The spawned player.
 	 */
-	private final Player player;
+	private Player player;
 
 	public Actor getActor()
 	{

runelite-api/src/main/java/net/runelite/api/events/PostHealthBar.java

@@ -30,5 +30,12 @@ import lombok.Data;
 @Data
 public class PostHealthBar
 {
+	public static final PostHealthBar INSTANCE = new PostHealthBar();
+
+	private PostHealthBar()
+	{
+		// noop
+	}
+
 	private HealthBar healthBar;
 }

runelite-api/src/main/java/net/runelite/api/events/PostItemDefinition.java

@@ -34,6 +34,13 @@ import net.runelite.api.ItemDefinition;
 @Data
 public class PostItemDefinition
 {
+	public static final PostItemDefinition INSTANCE = new PostItemDefinition();
+
+	private PostItemDefinition()
+	{
+		// noop
+	}
+
 	/**
 	 * The newly created item.
 	 */

runelite-api/src/main/java/net/runelite/api/events/ProjectileMoved.java

@@ -37,6 +37,13 @@ import lombok.Data;
 @Data
 public class ProjectileMoved
 {
+	public static final ProjectileMoved INSTANCE = new ProjectileMoved();
+
+	private ProjectileMoved()
+	{
+		// noop
+	}
+
 	/**
 	 * The projectile being moved.
 	 */

runelite-api/src/main/java/net/runelite/api/events/ProjectileSpawned.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class ProjectileSpawned
 {
+	public static final ProjectileSpawned INSTANCE = new ProjectileSpawned();
+
+	private ProjectileSpawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The spawned projectile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/RemovedFriend.java

@@ -24,16 +24,23 @@
  */
 package net.runelite.api.events;
 
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where a request to remove a friend is sent to the server.
  */
-@Value
+@Data
 public class RemovedFriend
 {
+	public static final RemovedFriend INSTANCE = new RemovedFriend();
+
+	private RemovedFriend()
+	{
+		// noop
+	}
+
 	/**
 	 * The name of the removed friend.
 	 */
-	private final String name;
+	private String name;
 }

runelite-api/src/main/java/net/runelite/api/events/ResizeableChanged.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class ResizeableChanged
 {
+	public static final ResizeableChanged INSTANCE = new ResizeableChanged();
+
+	private ResizeableChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * Whether the game is in resizable mode.
 	 */

runelite-api/src/main/java/net/runelite/api/events/ScriptCallbackEvent.java

@@ -33,6 +33,13 @@ import lombok.Data;
 @Data
 public class ScriptCallbackEvent
 {
+	public static final ScriptCallbackEvent INSTANCE = new ScriptCallbackEvent();
+
+	private ScriptCallbackEvent()
+	{
+		// noop
+	}
+
 	/**
 	 * The script being called.
 	 */

runelite-api/src/main/java/net/runelite/api/events/SoundEffectPlayed.java

@@ -29,6 +29,13 @@ import lombok.Data;
 @Data
 public class SoundEffectPlayed
 {
+	public static final SoundEffectPlayed INSTANCE = new SoundEffectPlayed();
+
+	private SoundEffectPlayed()
+	{
+		// noop
+	}
+
 	private int soundId;
 	private int delay;
 }

runelite-api/src/main/java/net/runelite/api/events/SpotAnimationChanged.java

@@ -21,6 +21,13 @@ import net.runelite.api.Actor;
 @Data
 public class SpotAnimationChanged
 {
+	public static final SpotAnimationChanged INSTANCE = new SpotAnimationChanged();
+
+	private SpotAnimationChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The actor that has had their graphic changed.
 	 */

runelite-api/src/main/java/net/runelite/api/events/UsernameChanged.java

@@ -32,4 +32,10 @@ package net.runelite.api.events;
  */
 public class UsernameChanged
 {
+	public static final UsernameChanged INSTANCE = new UsernameChanged();
+
+	private UsernameChanged()
+	{
+		// noop
+	}
 }

runelite-api/src/main/java/net/runelite/api/events/VarClientIntChanged.java

@@ -25,13 +25,20 @@
  */
 package net.runelite.api.events;
 
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where a varbit integer has changed.
  */
-@Value
+@Data
 public class VarClientIntChanged
 {
+	public static final VarClientIntChanged INSTANCE = new VarClientIntChanged();
+
+	private VarClientIntChanged()
+	{
+		// noop
+	}
+
 	private int index;
 }

runelite-api/src/main/java/net/runelite/api/events/VarClientStrChanged.java

@@ -25,13 +25,20 @@
  */
 package net.runelite.api.events;
 
-import lombok.Value;
+import lombok.Data;
 
 /**
  * An event where a varbit string has changed.
  */
-@Value
+@Data
 public class VarClientStrChanged
 {
+	public static final VarClientStrChanged INSTANCE = new VarClientStrChanged();
+
+	private VarClientStrChanged()
+	{
+		// noop
+	}
+
 	private int index;
 }

runelite-api/src/main/java/net/runelite/api/events/VarbitChanged.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class VarbitChanged
 {
+	public static final VarbitChanged INSTANCE = new VarbitChanged();
+
+	private VarbitChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * Index in the varp array that was changed.
 	 * For varplayer, this is the varplayer id.

runelite-api/src/main/java/net/runelite/api/events/WallObjectChanged.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class WallObjectChanged
 {
+	public static final WallObjectChanged INSTANCE = new WallObjectChanged();
+
+	private WallObjectChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/WallObjectDespawned.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class WallObjectDespawned
 {
+	public static final WallObjectDespawned INSTANCE = new WallObjectDespawned();
+
+	private WallObjectDespawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/WallObjectSpawned.java

@@ -34,6 +34,13 @@ import lombok.Data;
 @Data
 public class WallObjectSpawned
 {
+	public static final WallObjectSpawned INSTANCE = new WallObjectSpawned();
+
+	private WallObjectSpawned()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected tile.
 	 */

runelite-api/src/main/java/net/runelite/api/events/WidgetHiddenChanged.java

@@ -33,6 +33,13 @@ import lombok.Data;
 @Data
 public class WidgetHiddenChanged
 {
+	public static final WidgetHiddenChanged INSTANCE = new WidgetHiddenChanged();
+
+	private WidgetHiddenChanged()
+	{
+		// noop
+	}
+
 	/**
 	 * The affected widget.
 	 */

runelite-api/src/main/java/net/runelite/api/events/WidgetLoaded.java

@@ -32,6 +32,13 @@ import lombok.Data;
 @Data
 public class WidgetLoaded
 {
+	public static final WidgetLoaded INSTANCE = new WidgetLoaded();
+
+	private WidgetLoaded()
+	{
+		// noop
+	}
+
 	/**
 	 * The group ID of the loaded widget.
 	 */

runelite-api/src/main/java/net/runelite/api/events/WidgetMenuOptionClicked.java

@@ -33,6 +33,13 @@ import lombok.Data;
 @Data
 public class WidgetMenuOptionClicked
 {
+	public static final WidgetMenuOptionClicked INSTANCE = new WidgetMenuOptionClicked();
+
+	private WidgetMenuOptionClicked()
+	{
+		// noop
+	}
+
 	/**
 	 * The clicked menu option.
 	 */

runelite-api/src/main/java/net/runelite/api/events/WidgetPositioned.java

@@ -24,13 +24,16 @@
  */
 package net.runelite.api.events;
 
-import lombok.Value;
-
 /**
  * An event where the position of a {@link net.runelite.api.widgets.Widget}
  * relative to its parent has changed.
  */
-@Value
 public class WidgetPositioned
 {
+	public static final WidgetPositioned INSTANCE = new WidgetPositioned();
+
+	private WidgetPositioned()
+	{
+		// noop
+	}
 }

runelite-api/src/main/java/net/runelite/api/events/WorldListLoad.java

@@ -25,13 +25,20 @@
 package net.runelite.api.events;
 
 import net.runelite.api.World;
-import lombok.Value;
+import lombok.Data;
 
 /**
  * Event when the world list is loaded for the world switcher
  */
-@Value
+@Data
 public class WorldListLoad
 {
-	private final World[] worlds;
+	public static final WorldListLoad INSTANCE = new WorldListLoad();
+
+	private WorldListLoad()
+	{
+		// noop
+	}
+
+	private World[] worlds;
 }