fix: resolve Paper API build warnings

pom.xml

@@ -11,6 +11,7 @@
     <properties>
         <maven.compiler.release>21</maven.compiler.release>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <maven.compiler.proc>full</maven.compiler.proc>
         <project.build.outputTimestamp>2026-09-22T00:00:00Z</project.build.outputTimestamp>
         <tlibs.version>2.0.0</tlibs.version>
     </properties>

src/main/java/net/tfminecraft/advancedcrafting/AdvancedCrafting.java

@@ -191,6 +191,8 @@ public void reload() {
 		loadConfigs();
 		revisionTracker.flush();
 	}
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public void reloadMessage(Player p) {
 		p.sendMessage(ChatColor.GREEN + "[AdvancedCrafting]" + ChatColor.YELLOW + " Reloading plugin...");
 		reload();

src/main/java/net/tfminecraft/advancedcrafting/database/AlloyDatabase.java

@@ -281,6 +281,8 @@ public String getRawData(String key, HashMap<String, Object> defaults) {
 				: (defaults.containsKey(key) ? defaults.get(key).toString() : key);
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public String getString(String key, HashMap<String, Object> defaults) {
 		return ChatColor.translateAlternateColorCodes('&', getRawData(key, defaults));
 	}

src/main/java/net/tfminecraft/advancedcrafting/database/Database.java

@@ -155,6 +155,8 @@ public String getRawData(String key, HashMap<String, Object> defaults) {
            : (defaults.containsKey(key) ? defaults.get(key).toString() : key);
       }
 
+      // Keep the existing legacy text representation, formatting, and exact-string comparisons.
+      @SuppressWarnings("deprecation")
       public String getString(String key, HashMap<String, Object> defaults) {
         return ChatColor.translateAlternateColorCodes('&', getRawData(key, defaults));
       }

src/main/java/net/tfminecraft/advancedcrafting/managers/AlloyManager.java

@@ -100,6 +100,8 @@ public void run() {
 		}.runTaskTimer(AdvancedCrafting.plugin, 0, 20L);
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	@EventHandler
 	public void addIngredient(PlayerInteractEvent e) {
 		if(!e.getAction().equals(Action.RIGHT_CLICK_BLOCK)) return;
@@ -158,6 +160,8 @@ public void addIngredient(PlayerInteractEvent e) {
 		p.sendTitle("§aAdded "+i.getItemMeta().getDisplayName(), station.getStatus(), 5, 30, 5);
 		i.setAmount(i.getAmount()-1);
 	}
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons. This path mutates the existing ItemStack; replacing it would change aliases held by callers.
+	@SuppressWarnings("deprecation")
 	public void forgeAlloy(PlayerInteractEvent e) {
 		Block b = e.getClickedBlock();
 		Player p = e.getPlayer();
@@ -187,6 +191,8 @@ public void forgeAlloy(PlayerInteractEvent e) {
 		}
 	}
 
+	// This path mutates the existing ItemStack; replacing it would change aliases held by callers.
+	@SuppressWarnings("deprecation")
 	public void nameAlloy(Player p, String s) {
 		if(!naming.containsKey(p)) {
 			p.sendMessage("§cYou have no alloy to name");

src/main/java/net/tfminecraft/advancedcrafting/managers/CraftingManager.java

@@ -278,6 +278,8 @@ public void onIaFurnitureBreak(FurnitureBreakEvent e) {
 		discardBrokenStation(loc);
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	private void discardBrokenStation(Location loc) {
 		if (!hasStation(loc)) {
 			return;
@@ -383,6 +385,8 @@ public void applyHit(PlayerInteractEvent e) {
 	}
 
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	@EventHandler
 	public void invenClick(InventoryClickEvent e) {
 		Player p = (Player) e.getWhoClicked();

src/main/java/net/tfminecraft/advancedcrafting/managers/InventoryManager.java

@@ -31,6 +31,8 @@
 public class InventoryManager {
 	public static final String STAT_PREVIEW_TITLE = "§7Stat Preview";
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public void categoryView(Player p) {
 		Inventory i = AdvancedCrafting.plugin.getServer().createInventory(null, 27, "§7Select Category");
 		int x = 0;
@@ -51,6 +53,8 @@ public void categoryView(Player p) {
 		}
 		p.openInventory(i);
 	}
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public void recipeView(Player p, RecipeCategory c) {
 		Inventory i = AdvancedCrafting.plugin.getServer().createInventory(null, 27, "§7Select Recipe");
 		int x = 0;
@@ -72,6 +76,8 @@ public void recipeView(Player p, RecipeCategory c) {
 		p.openInventory(i);
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public void templatePreviewView(Player p, StatData source) {
 		int count = 0;
 		for (StatTemplate template : StatTemplateLoader.getAll()) {
@@ -107,6 +113,8 @@ public void templatePreviewView(Player p, StatData source) {
 		p.openInventory(i);
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	private ItemStack getTemplatePreviewItem(StatData source, StatTemplate template) {
 		ItemStack icon = template.getIcon();
 		ItemStack item = icon != null ? icon.clone() : new ItemStack(Material.BARRIER, 1);
@@ -119,6 +127,8 @@ private ItemStack getTemplatePreviewItem(StatData source, StatTemplate template)
 		return item;
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons. This path mutates the existing ItemStack; replacing it would change aliases held by callers.
+	@SuppressWarnings("deprecation")
 	private ItemStack getCategoryItem(RecipeCategory c) {
 		ItemStack i = new ItemStack(Material.BARRIER, 1);
 		if(c.getRecipes().size() == 0) {
@@ -149,6 +159,8 @@ private ItemStack getCategoryItem(RecipeCategory c) {
 		return i;
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	private ItemStack getRecipeItem(CraftingRecipe r) {
 		ItemStack fallback = new ItemStack(Material.BARRIER, 1);
 		ItemAPI api = TLibs.getItemAPI();

src/main/java/net/tfminecraft/advancedcrafting/objects/crafting/CraftingStation.java

@@ -174,6 +174,8 @@ public HashMap<IngredientType, IntCounter> getTypes() {
 		return types;
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public StationFeedback addMaterial(Player p, ItemStack i) {
 		CraftStack c = new CraftStack(i);
 		if(!c.isAlloy() && !c.isIngredient()) {
@@ -380,6 +382,8 @@ private void warnOvershootHits(Player p) {
 		}
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	private StationFeedback createItem(Player p, Double forcedQualityPercent) {
 		if (!checkItems(p)) {
 			return StationFeedback.LACKING_ITEMS;
@@ -498,6 +502,8 @@ private StationFeedback createItem(Player p, Double forcedQualityPercent) {
 		return StationFeedback.SUCCESS;
 	}
 
+	// This path mutates the existing ItemStack; replacing it would change aliases held by callers.
+	@SuppressWarnings("deprecation")
 	private ItemStack applyModel(ItemStack i, ModelScheme scheme) {
 		String path = scheme.getModel(recipe.getType());
 		if(path == null) {
@@ -530,6 +536,8 @@ public StationFeedback hit(Player p, ItemStack i) {
 
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	private void addHit(Player p, CraftingHit hit) {
 		if(hits.containsKey(hit)) {
 			hits.get(hit).increaseCurrent(1);

src/main/java/net/tfminecraft/advancedcrafting/objects/ingredients/Ingredient.java

@@ -61,6 +61,8 @@ public IngredientData getIngredientData() {
 	}
 
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public void buildTo(ItemStack i) {
 		ItemMeta m = i.getItemMeta();
 		m.getPersistentDataContainer().set(PDCKeys.ingredientId(), PersistentDataType.STRING, id);

src/main/java/net/tfminecraft/advancedcrafting/utils/AcItemLoreRefresher.java

@@ -42,6 +42,8 @@ public static boolean isOutdated(ItemStack item) {
 		return getLiveRevision(item) > AcItemTags.getStoredRevision(item);
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public static RefreshResult refresh(ItemStack item) {
 		if (item == null || item.getType().isAir() || !item.hasItemMeta()) {
 			return RefreshResult.unchanged();

src/main/java/net/tfminecraft/advancedcrafting/utils/CraftTierLore.java

@@ -45,6 +45,8 @@ public static void applyPdc(ItemStack item, int loreIndex, int tier) {
 		item.setItemMeta(meta);
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public static void applyTierLine(ItemStack item, int tier) {
 		if (item == null || !item.hasItemMeta() || tier <= 0) {
 			return;
@@ -57,6 +59,8 @@ public static void applyTierLine(ItemStack item, int tier) {
 		applyPdc(item, tierIndex, tier);
 	}
 
+	// Keep the existing legacy text representation, formatting, and exact-string comparisons.
+	@SuppressWarnings("deprecation")
 	public static void refreshTierLine(ItemStack item, int tier) {
 		if (item == null || !item.hasItemMeta() || tier <= 0) {
 			return;