diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/TemplatePaperPlugin.java b/src/main/java/org/esoteric/minecraft/plugins/template/TemplatePaperPlugin.java
index 296c5777..92923156 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/TemplatePaperPlugin.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/TemplatePaperPlugin.java
@@ -2,9 +2,6 @@
 
 import org.bukkit.NamespacedKey;
 import org.bukkit.plugin.java.JavaPlugin;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
-import org.checkerframework.framework.qual.DefaultQualifier;
 
 import dev.jorel.commandapi.CommandAPI;
 import dev.jorel.commandapi.CommandAPIBukkitConfig;
@@ -25,65 +22,48 @@
 import org.esoteric.minecraft.plugins.template.language.Message;
 import org.esoteric.minecraft.plugins.template.resourcepack.ResourcePackManager;
 
-@DefaultQualifier(NonNull.class)
 public final class TemplatePaperPlugin extends JavaPlugin {
 
-  @Nullable
   private FileManager fileManager;
-  @Nullable
   private PlayerDataManager playerDataManager;
-  @Nullable
   private LanguageManager languageManager;
-  @Nullable
   private ResourcePackManager resourcePackManager;
-  @Nullable
   private HttpServerManager httpServerManager;
-  @Nullable
   private CustomItemManager customItemManager;
-  @Nullable
   private CustomMultientityManager customMultientityManager;
-  @Nullable
   private CustomMultiblockManager customMultiblockManager;
 
   private final NamespacedKey customItemIdKey = new NamespacedKey(this, "custom_item_id");
   private final NamespacedKey customEntityIdKey = new NamespacedKey(this, "custom_entity_id");
 
-  @Nullable
   public FileManager getFileManager() {
     return fileManager;
   }
 
-  @Nullable
   public PlayerDataManager getPlayerDataManager() {
     return playerDataManager;
   }
 
-  @Nullable
   public LanguageManager getLanguageManager() {
     return languageManager;
   }
 
-  @Nullable
   public ResourcePackManager getResourcePackManager() {
     return resourcePackManager;
   }
 
-  @Nullable
   public HttpServerManager getHttpServerManager() {
     return httpServerManager;
   }
 
-  @Nullable
   public CustomItemManager getCustomItemManager() {
     return customItemManager;
   }
 
-  @Nullable
   public CustomMultientityManager getCustomMultientityManager() {
     return customMultientityManager;
   }
 
-  @Nullable
   public CustomMultiblockManager getCustomMultiblockManager() {
     return customMultiblockManager;
   }
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/commands/SetLanguageCommand.java b/src/main/java/org/esoteric/minecraft/plugins/template/commands/SetLanguageCommand.java
index 970a57e2..56ae2cb7 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/commands/SetLanguageCommand.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/commands/SetLanguageCommand.java
@@ -13,10 +13,11 @@
 import org.esoteric.minecraft.plugins.template.language.LanguageManager;
 import org.esoteric.minecraft.plugins.template.language.Message;
 import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.NotNull;
 
 public class SetLanguageCommand extends CommandAPICommand {
 
-  public SetLanguageCommand(TemplatePaperPlugin plugin) {
+  public SetLanguageCommand(@NotNull TemplatePaperPlugin plugin) {
     super("set-language");
 
     LanguageManager languageManager = plugin.getLanguageManager();
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/custom/items/AbstractCustomItem.java b/src/main/java/org/esoteric/minecraft/plugins/template/custom/items/AbstractCustomItem.java
index d4db73f3..dc4205a2 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/custom/items/AbstractCustomItem.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/custom/items/AbstractCustomItem.java
@@ -7,8 +7,8 @@
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.persistence.PersistentDataType;
 
-import org.checkerframework.checker.nullness.qual.NonNull;
 import org.esoteric.minecraft.plugins.template.TemplatePaperPlugin;
+import org.jetbrains.annotations.NotNull;
 
 public abstract class AbstractCustomItem implements Listener {
 
@@ -17,7 +17,7 @@ public abstract class AbstractCustomItem implements Listener {
   private final CustomItem itemId;
   private final Material material;
 
-  public AbstractCustomItem(CustomItemManager customItemManager, CustomItem itemId, Material material) {
+  public AbstractCustomItem(@NotNull CustomItemManager customItemManager, CustomItem itemId, Material material) {
     this.plugin = customItemManager.getPlugin();
 
     this.itemId = itemId;
@@ -57,7 +57,7 @@ public boolean isItem(ItemStack itemStack) {
     }
   }
 
-  public void give(@NonNull Player player) {
+  public void give(@NotNull Player player) {
     player.getInventory().addItem(getCustomItem(player));
   }
 }
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/AbstractCustomMultiblock.java b/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/AbstractCustomMultiblock.java
index 3df62b43..7de103a0 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/AbstractCustomMultiblock.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/AbstractCustomMultiblock.java
@@ -10,6 +10,7 @@
 
 import org.esoteric.minecraft.plugins.template.TemplatePaperPlugin;
 import org.esoteric.minecraft.plugins.template.util.types.BlockLocation;
+import org.jetbrains.annotations.NotNull;
 
 public abstract class AbstractCustomMultiblock implements Listener {
 
@@ -25,7 +26,7 @@ public void addMultiblocks(List<List<BlockLocation>> addedMultiblocks) {
     multiblocks.addAll(addedMultiblocks);
   }
 
-  public AbstractCustomMultiblock(CustomMultiblockManager customMultiblockManager, CustomMultiblock multiblockId) {
+  public AbstractCustomMultiblock(@NotNull CustomMultiblockManager customMultiblockManager, CustomMultiblock multiblockId) {
     this.plugin = customMultiblockManager.getPlugin();
 
     Bukkit.getPluginManager().registerEvents(this, plugin);
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/CustomMultiblockManager.java b/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/CustomMultiblockManager.java
index ed5abbf1..b3631aa0 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/CustomMultiblockManager.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/CustomMultiblockManager.java
@@ -17,7 +17,7 @@
 import com.google.gson.Gson;
 
 import org.esoteric.minecraft.plugins.template.TemplatePaperPlugin;
-import org.checkerframework.checker.nullness.qual.NonNull;
+import org.jetbrains.annotations.NotNull;
 
 public class CustomMultiblockManager {
 
@@ -34,7 +34,7 @@ public TemplatePaperPlugin getPlugin() {
     return plugin;
   }
 
-  public CustomMultiblockManager(TemplatePaperPlugin plugin) {
+  public CustomMultiblockManager(@NotNull TemplatePaperPlugin plugin) {
     this.plugin = plugin;
 
     multiblocksFilePath = plugin.getDataFolder() + File.separator + multiblocksResourceFilePath;
@@ -114,7 +114,7 @@ public void save() {
     }
   }
 
-  public void loadStoredCustomMultiblocks(@NonNull StoredCustomMultiblocks multiblocks) {
+  public void loadStoredCustomMultiblocks(@NotNull StoredCustomMultiblocks multiblocks) {
     for (StoredCustomMultiblock multiblock : multiblocks.getStoredCustomMultiblocks()) {
       customMultiblockMap.get(multiblock.getMultiblockId()).addMultiblocks(multiblock.getBlockLocations());
     }
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/StoredCustomMultiblock.java b/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/StoredCustomMultiblock.java
index 1f56a08c..493cd39e 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/StoredCustomMultiblock.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/custom/multiblocks/StoredCustomMultiblock.java
@@ -4,7 +4,7 @@
 import java.util.Map.Entry;
 
 import org.esoteric.minecraft.plugins.template.util.types.BlockLocation;
-import org.checkerframework.checker.nullness.qual.NonNull;
+import org.jetbrains.annotations.NotNull;
 
 public class StoredCustomMultiblock {
   private final List<List<BlockLocation>> blockLocations;
@@ -23,7 +23,7 @@ public StoredCustomMultiblock(List<List<BlockLocation>> blockLocations, CustomMu
     this.multiblockId = multiblockId;
   }
 
-  public StoredCustomMultiblock(@NonNull Entry<CustomMultiblock, AbstractCustomMultiblock> multiblockInfo) {
+  public StoredCustomMultiblock(@NotNull Entry<CustomMultiblock, AbstractCustomMultiblock> multiblockInfo) {
     this(multiblockInfo.getValue().getMultiblocks(), multiblockInfo.getKey());
   } 
 }
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/custom/multientities/AbstractCustomMultientity.java b/src/main/java/org/esoteric/minecraft/plugins/template/custom/multientities/AbstractCustomMultientity.java
index 9b455b7f..b1b72765 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/custom/multientities/AbstractCustomMultientity.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/custom/multientities/AbstractCustomMultientity.java
@@ -9,6 +9,7 @@
 import org.bukkit.persistence.PersistentDataType;
 
 import org.esoteric.minecraft.plugins.template.TemplatePaperPlugin;
+import org.jetbrains.annotations.NotNull;
 
 public abstract class AbstractCustomMultientity<E extends Entity> implements Listener {
 
@@ -16,7 +17,7 @@ public abstract class AbstractCustomMultientity<E extends Entity> implements Lis
 
   private final CustomMultientity entityId;
 
-  protected AbstractCustomMultientity(CustomMultientityManager customMultientityManager, CustomMultientity entityId) {
+  protected AbstractCustomMultientity(@NotNull CustomMultientityManager customMultientityManager, CustomMultientity entityId) {
     this.plugin = customMultientityManager.getPlugin();
 
     this.entityId = entityId;
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/data/player/PlayerDataManager.java b/src/main/java/org/esoteric/minecraft/plugins/template/data/player/PlayerDataManager.java
index cec88253..7565cd13 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/data/player/PlayerDataManager.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/data/player/PlayerDataManager.java
@@ -14,7 +14,7 @@
 import com.google.gson.Gson;
 
 import org.esoteric.minecraft.plugins.template.TemplatePaperPlugin;
-import org.checkerframework.checker.nullness.qual.NonNull;
+import org.jetbrains.annotations.NotNull;
 
 public class PlayerDataManager {
 
@@ -28,7 +28,7 @@ public class PlayerDataManager {
 
   private final Map<UUID, PlayerProfile> playerData = new HashMap<>();
 
-  public PlayerDataManager(TemplatePaperPlugin plugin) {
+  public PlayerDataManager(@NotNull TemplatePaperPlugin plugin) {
     this.plugin = plugin;
 
     playerDataFolderPath = plugin.getDataPath() + File.separator + playerDataFolderName;
@@ -121,7 +121,7 @@ public PlayerProfile getPlayerProfile(UUID uuid) {
     return getPlayerProfile(uuid, true);
   }
 
-  public PlayerProfile getPlayerProfile(@NonNull Player player, boolean createNewProfile) {
+  public PlayerProfile getPlayerProfile(@NotNull Player player, boolean createNewProfile) {
     return getPlayerProfile(player.getUniqueId(), createNewProfile);
   }
 
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/file/FileUtil.java b/src/main/java/org/esoteric/minecraft/plugins/template/file/FileUtil.java
index daeed791..87a95419 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/file/FileUtil.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/file/FileUtil.java
@@ -14,8 +14,8 @@
 import java.security.NoSuchAlgorithmException;
 
 import net.lingala.zip4j.ZipFile;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 public class FileUtil {
 
@@ -53,7 +53,7 @@ public static List<String> getResourceFileFolderResourceFilePaths(String resourc
     }
   }
 
-  public static @NonNull List<String> getResourceFileFolderResourceFilePathsRecursively(String resourceFileFolderPath) throws IOException {
+  public static @NotNull List<String> getResourceFileFolderResourceFilePathsRecursively(String resourceFileFolderPath) throws IOException {
     List<String> paths = new ArrayList<>();
 
     for (String resourceFilePath : getResourceFileFolderResourceFilePaths(resourceFileFolderPath)) {
@@ -68,7 +68,7 @@ public static List<String> getResourceFileFolderResourceFilePaths(String resourc
     return paths;
   }
 
-  public static void zipFolder(@NonNull File sourceFolder, File zipFile) throws IOException {
+  public static void zipFolder(@NotNull File sourceFolder, File zipFile) throws IOException {
     try (ZipFile zipFileInstance = new ZipFile(zipFile)) {
       for (File file : sourceFolder.listFiles()) {
         if (file.isDirectory()) {
@@ -80,7 +80,7 @@ public static void zipFolder(@NonNull File sourceFolder, File zipFile) throws IO
     }
   }
 
-  public static boolean isDirectoryRecursivelyEmpty(@NonNull File directory) {
+  public static boolean isDirectoryRecursivelyEmpty(@NotNull File directory) {
     if (!directory.isDirectory()) {
       throw new IllegalArgumentException("The specified path is not a directory");
     }
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/http/server/HttpServerManager.java b/src/main/java/org/esoteric/minecraft/plugins/template/http/server/HttpServerManager.java
index d32bfb68..93bf8f35 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/http/server/HttpServerManager.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/http/server/HttpServerManager.java
@@ -17,6 +17,7 @@
 import java.net.InetSocketAddress;
 
 import org.bukkit.Bukkit;
+import org.jetbrains.annotations.NotNull;
 
 public class HttpServerManager {
 
@@ -42,7 +43,7 @@ public String getSocketAddress() {
     return getHostName() + ":" + getPort();
   }
 
-  public HttpServerManager(TemplatePaperPlugin plugin) {
+  public HttpServerManager(@NotNull TemplatePaperPlugin plugin) {
     if (plugin.getResourcePackManager().getResourcePackZipFile() == null) {
       return;
     }
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/http/server/event/listeners/PlayerJoinListener.java b/src/main/java/org/esoteric/minecraft/plugins/template/http/server/event/listeners/PlayerJoinListener.java
index df26b776..1e21787a 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/http/server/event/listeners/PlayerJoinListener.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/http/server/event/listeners/PlayerJoinListener.java
@@ -12,19 +12,19 @@
 import org.esoteric.minecraft.plugins.template.http.server.HttpServerManager;
 import net.kyori.adventure.resource.ResourcePackInfo;
 import net.kyori.adventure.resource.ResourcePackRequest;
-import org.checkerframework.checker.nullness.qual.NonNull;
+import org.jetbrains.annotations.NotNull;
 
 public class PlayerJoinListener implements Listener {
 
   private ResourcePackInfo resourcePackInfo;
 
-  public PlayerJoinListener(TemplatePaperPlugin plugin, HttpServerManager httpServerManager) {
+  public PlayerJoinListener(@NotNull TemplatePaperPlugin plugin, @NotNull HttpServerManager httpServerManager) {
     resourcePackInfo = ResourcePackInfo.resourcePackInfo().hash(FileUtil.getSha1HexString(plugin.getResourcePackManager().getResourcePackZipFile()))
         .uri(URI.create("http://" + httpServerManager.getSocketAddress() + "/")).build();
   }
 
   @EventHandler
-  public void onPlayerJoin(@NonNull PlayerJoinEvent event) {
+  public void onPlayerJoin(@NotNull PlayerJoinEvent event) {
     Player player = event.getPlayer();
     player.sendResourcePacks(ResourcePackRequest.resourcePackRequest().packs(resourcePackInfo).required(true).build());
   }
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/language/LanguageManager.java b/src/main/java/org/esoteric/minecraft/plugins/template/language/LanguageManager.java
index 54206992..8df63303 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/language/LanguageManager.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/language/LanguageManager.java
@@ -18,8 +18,8 @@
 import org.bukkit.command.CommandSender;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.entity.Player;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 public class LanguageManager {
 
@@ -45,7 +45,7 @@ public Set<String> getLanguages() {
     return languages.keySet();
   }
 
-  public LanguageManager(TemplatePaperPlugin plugin) {
+  public LanguageManager(@NotNull TemplatePaperPlugin plugin) {
     this.plugin = plugin;
 
     languagesFolderPath = plugin.getDataPath() + File.separator + languagesFolderName;
@@ -104,11 +104,11 @@ public String getLanguage(UUID uuid) {
     return language;
   }
 
-  public String getLanguage(@NonNull PlayerProfile profile) {
+  public String getLanguage(@NotNull PlayerProfile profile) {
     return getLanguage(profile.getUuid());
   }
 
-  public void setLanguage(@NonNull PlayerProfile profile, String language) {
+  public void setLanguage(@NotNull PlayerProfile profile, String language) {
     profile.setLanguage(language);
   }
 
@@ -117,7 +117,7 @@ public void setLanguage(UUID uuid, String language) {
     setLanguage(plugin.getPlayerDataManager().getPlayerProfile(uuid), language);
   }
 
-  public void setLanguage(@NonNull Player player, String language) {
+  public void setLanguage(@NotNull Player player, String language) {
     setLanguage(player.getUniqueId(), language);
   }
 
@@ -141,7 +141,7 @@ private String getLocale(UUID uuid) {
     return getLocale(player);
   }
 
-  private String getLocale(@NonNull PlayerProfile profile) {
+  private String getLocale(@NotNull PlayerProfile profile) {
     return getLocale(profile.getUuid());
   }
 
@@ -182,7 +182,7 @@ private String getRawMessageString(Message message, String language) {
     return getRawMessageString(message, language, true);
   }
 
-  private Component getMessage(Message message, String language, boolean fallbackOnDefaultLanguage, Component @NonNull ... arguments) {
+  private Component getMessage(Message message, String language, boolean fallbackOnDefaultLanguage, Component @NotNull ... arguments) {
     String miniMessageString = getRawMessageString(message, language, fallbackOnDefaultLanguage);
 
     assert miniMessageString != null;
@@ -257,19 +257,19 @@ public Component getMessage(Message message, PlayerProfile playerProfile, Object
     return getMessage(message, playerProfile, true, arguments);
   }
 
-  public void sendMessage(Message message, @NonNull CommandSender commandSender, boolean fallbackOnDefaultLanguage, Component... arguments) {
+  public void sendMessage(Message message, @NotNull CommandSender commandSender, boolean fallbackOnDefaultLanguage, Component... arguments) {
     commandSender.sendMessage(getMessage(message, getLanguage(commandSender), fallbackOnDefaultLanguage, arguments));
   }
 
-  public void sendMessage(Message message, @NonNull CommandSender commandSender, Component... arguments) {
+  public void sendMessage(Message message, @NotNull CommandSender commandSender, Component... arguments) {
     commandSender.sendMessage(getMessage(message, commandSender, true, arguments));
   }
 
-  public void sendMessage(Message message, @NonNull CommandSender commandSender, boolean fallbackOnDefaultLanguage, Object... arguments) {
+  public void sendMessage(Message message, @NotNull CommandSender commandSender, boolean fallbackOnDefaultLanguage, Object... arguments) {
     commandSender.sendMessage(getMessage(message, commandSender, fallbackOnDefaultLanguage, toComponents(arguments)));
   }
 
-  public void sendMessage(Message message, @NonNull CommandSender commandSender, Object... arguments) {
+  public void sendMessage(Message message, @NotNull CommandSender commandSender, Object... arguments) {
     commandSender.sendMessage(getMessage(message, commandSender, true, arguments));
   }
 
@@ -289,23 +289,23 @@ public void sendMessage(Message message, UUID uuid, Object... arguments) {
     Bukkit.getPlayer(uuid).sendMessage(getMessage(message, uuid, true, arguments));
   }
 
-  public void sendMessage(Message message, @NonNull PlayerProfile playerProfile, boolean fallbackOnDefaultLanguage, Component... arguments) {
+  public void sendMessage(Message message, @NotNull PlayerProfile playerProfile, boolean fallbackOnDefaultLanguage, Component... arguments) {
     Bukkit.getPlayer(playerProfile.getUuid()).sendMessage(getMessage(message, getLanguage(playerProfile), fallbackOnDefaultLanguage, arguments));
   }
 
-  public void sendMessage(Message message, @NonNull PlayerProfile playerProfile, Component... arguments) {
+  public void sendMessage(Message message, @NotNull PlayerProfile playerProfile, Component... arguments) {
     Bukkit.getPlayer(playerProfile.getUuid()).sendMessage(getMessage(message, playerProfile, true, arguments));
   }
 
-  public void sendMessage(Message message, @NonNull PlayerProfile playerProfile, boolean fallbackOnDefaultLanguage, Object... arguments) {
+  public void sendMessage(Message message, @NotNull PlayerProfile playerProfile, boolean fallbackOnDefaultLanguage, Object... arguments) {
     Bukkit.getPlayer(playerProfile.getUuid()).sendMessage(getMessage(message, playerProfile, fallbackOnDefaultLanguage, toComponents(arguments)));
   }
 
-  public void sendMessage(Message message, @NonNull PlayerProfile playerProfile, Object... arguments) {
+  public void sendMessage(Message message, @NotNull PlayerProfile playerProfile, Object... arguments) {
     Bukkit.getPlayer(playerProfile.getUuid()).sendMessage(getMessage(message, playerProfile, true, arguments));
   }
 
-  private Component @NonNull [] toComponents(Object... objects) {
+  private Component @NotNull [] toComponents(Object... objects) {
     return Stream.of(objects).map(this::toComponent).toArray(Component[]::new);
   }
 
diff --git a/src/main/java/org/esoteric/minecraft/plugins/template/util/types/BlockLocation.java b/src/main/java/org/esoteric/minecraft/plugins/template/util/types/BlockLocation.java
index 898bbe7b..90c0937c 100644
--- a/src/main/java/org/esoteric/minecraft/plugins/template/util/types/BlockLocation.java
+++ b/src/main/java/org/esoteric/minecraft/plugins/template/util/types/BlockLocation.java
@@ -2,7 +2,7 @@
 
 import org.bukkit.Location;
 import org.bukkit.block.Block;
-import org.checkerframework.checker.nullness.qual.NonNull;
+import org.jetbrains.annotations.NotNull;
 
 public class BlockLocation {
 
@@ -35,11 +35,11 @@ public BlockLocation(String worldName, int x, int y, int z) {
     this.z = z;
   }
 
-  public BlockLocation(@NonNull Location location) {
+  public BlockLocation(@NotNull Location location) {
     this(location.getWorld().getName(), (int) location.getX(), (int) location.getY(), (int) location.getZ());
   }
 
-  public BlockLocation(@NonNull Block block) {
+  public BlockLocation(@NotNull Block block) {
     this(block.getLocation());
   }
 }