nms/nms-common/src/main/kotlin/xyz/alexcrea/cuanvil/dependency/util/PlatformUtil.kt

@@ -37,7 +37,7 @@ object PlatformUtil {
     // Lore
     fun ItemMeta.componentLore(): MutableList<Component> {
         val lore: List<Component>?
-        if (isPaper) {
+        if(isPaper){
             lore = this.lore()
         } else {
             val legacyLores = this.lore ?: return ArrayList()
@@ -52,41 +52,49 @@ object PlatformUtil {
     }
 
     fun ItemMeta.setComponentLore(lore: List<Component?>) {
-        if (isPaper) {
+        if(isPaper){
             this.lore(lore)
         } else {
             val legacyLore = ArrayList<String?>(lore.size)
             for (component in lore) {
-                legacyLore.add(
-                    if (component == null) null
-                    else legacy_mm.serialize(component)
-                )
+                legacyLore.add(if(component == null) null
+                else legacy_mm.serialize(component))
             }
 
             this.lore = legacyLore
         }
     }
 
+    // Display name
+    private val useCustomName = hasMethod(ItemStack::class.java, "customName")
+
     fun ItemMeta.componentDisplayName(): Component? {
-        if (!this.hasDisplayName()) return null
-
-        return if (isPaper) {
-            this.displayName()
+        if(useCustomName){
+            if(!this.hasCustomName()) return null
+            return this.customName()
+        }else if(isPaper){
+            if(!this.hasDisplayName()) return null
+            return this.displayName()
         } else {
-            legacy_mm.deserialize(this.displayName)
+            if(!this.hasDisplayName()) return null
+
+            val legacy = this.displayName
+            return legacy_mm.deserialize(legacy)
         }
     }
 
-    fun ItemMeta.setComponentDisplayName(component: Component?, fallback: String? = null) {
-        if (isPaper) {
+    fun ItemMeta.setComponentDisplayName(component: Component?) {
+        if(useCustomName){
+            this.customName(component)
+        }else if(isPaper){
             this.displayName(component)
         } else {
-            if (component == null) {
+            if(component == null){
                 this.setDisplayName(null)
                 return
             }
 
-            val legacy = fallback ?: legacy_mm.serialize(component)
+            val legacy = legacy_mm.serialize(component)
             this.setDisplayName(legacy)
         }
     }

src/main/kotlin/io/delilaheve/CustomAnvil.kt

@@ -136,7 +136,7 @@ open class CustomAnvil : JavaPlugin() {
     override fun onEnable() {
         instance = this
         try {
-            if(legacyCheck()) return
+            legacyCheck()
         } catch (e: Exception) {
             logger.log(Level.SEVERE, "error trying to check for legacy system", e)
             MetricsUtil.trackError(e)
@@ -202,15 +202,14 @@ open class CustomAnvil : JavaPlugin() {
         }
     }
 
-    private fun legacyCheck(): Boolean {
+    private fun legacyCheck() {
         val currentVersion = UpdateUtils.currentMinecraftVersion()
         if (currentVersion.greaterEqual(Version(1, 21, 0))
-            && !DependencyManager.inTesting
-            && !"true".equals(System.getenv("CUSTOM_ANVIL_BYPASS_LEGACY_CHECK"), true)) {
+            && !DependencyManager.inTesting) {
             logger.warning("You are running a Minecraft version above or equal to 1.21.0")
             logger.warning("Please use CustomAnvil v2 instead if you wish to use the plugin with this version.")
             Bukkit.getPluginManager().disablePlugin(this)
-            return true
+            return
         }
         // Disable old plugin name if exist
         val potentialPlugin = Bukkit.getPluginManager().getPlugin("UnsafeEnchantsPlus")
@@ -243,7 +242,6 @@ open class CustomAnvil : JavaPlugin() {
 
                 logger.warning("An update may be available: $latestVer")
             }
-        return false
     }
 
     private fun registerListeners() {

src/main/kotlin/io/delilaheve/util/ItemUtil.kt

@@ -75,6 +75,6 @@ object ItemUtil {
      * The two items should either be the same type, or, the [other] is a book
      */
     fun ItemStack.canMergeWith(
-        other: ItemStack
-    ) = customType == other.customType || (other.isEnchantedBook())
+        other: ItemStack?
+    ) = (other != null) && (customType == other.customType || (other.isEnchantedBook()))
 }

src/main/kotlin/xyz/alexcrea/cuanvil/anvil/AnvilMergeLogic.kt

@@ -6,7 +6,6 @@ import io.delilaheve.util.EnchantmentUtil.combineWith
 import io.delilaheve.util.ItemUtil.isEnchantedBook
 import io.delilaheve.util.ItemUtil.repairFrom
 import io.delilaheve.util.ItemUtil.unitRepair
-import net.kyori.adventure.text.Component
 import org.bukkit.ChatColor
 import org.bukkit.Material
 import org.bukkit.entity.HumanEntity
@@ -18,7 +17,6 @@ import org.bukkit.inventory.meta.ItemMeta
 import org.bukkit.persistence.PersistentDataType
 import xyz.alexcrea.cuanvil.api.EnchantmentApi
 import xyz.alexcrea.cuanvil.dependency.DependencyManager
-import xyz.alexcrea.cuanvil.dependency.util.PlatformUtil.setComponentDisplayName
 import xyz.alexcrea.cuanvil.dialog.AnvilRenameDialog
 import xyz.alexcrea.cuanvil.enchant.CAEnchantment
 import xyz.alexcrea.cuanvil.recipe.AnvilCustomRecipe
@@ -141,12 +139,11 @@ object AnvilMergeLogic {
     private fun handleRename(resultItem: ItemStack, inventory: AnvilInventory, player: HumanEntity): Int {
         // Can be null
         var renameText = ChatColor.stripColor(inventory.renameText)
-        var component: Component? = null
 
         var sumCost = 0
         var useColor = false
         if (ConfigOptions.renameColorPossible && renameText != null) {
-            component = AnvilColorUtil.handleColor(
+            val component = AnvilColorUtil.handleColor(
                 renameText,
                 AnvilColorUtil.renamePermission(player)
             )
@@ -173,11 +170,7 @@ object AnvilMergeLogic {
                         renameText == CasedStringUtil.snakeToUpperSpacedCase(resultItem.type.name.lowercase())
                         )
             ) {
-                if (component == null)
-                    component = if (renameText == null || renameText.isEmpty()) null
-                    else Component.text(renameText)
-                it.setComponentDisplayName(component, renameText)
-
+                it.setDisplayName(renameText)
                 processDialogPCD(it, player)
                 resultItem.itemMeta = it
 

src/main/kotlin/xyz/alexcrea/cuanvil/listener/AnvilResultListener.kt

@@ -31,7 +31,6 @@ import xyz.alexcrea.cuanvil.listener.PrepareAnvilListener.Companion.ANVIL_INPUT_
 import xyz.alexcrea.cuanvil.listener.PrepareAnvilListener.Companion.ANVIL_INPUT_RIGHT
 import xyz.alexcrea.cuanvil.listener.PrepareAnvilListener.Companion.ANVIL_OUTPUT_SLOT
 import xyz.alexcrea.cuanvil.util.CustomRecipeUtil
-import xyz.alexcrea.cuanvil.util.MaterialUtil.isAir
 import xyz.alexcrea.cuanvil.util.MiniMessageUtil
 import xyz.alexcrea.cuanvil.util.anvil.AnvilLoreEditUtil
 import xyz.alexcrea.cuanvil.util.anvil.AnvilXpUtil
@@ -93,7 +92,7 @@ class AnvilResultListener : Listener {
         }
 
         // Rename
-        if (rightItem.isAir) {
+        if (rightItem == null) {
             val result = AnvilMergeLogic.doRenaming(view, inventory, player, leftItem)
             if (result.isEmpty()) return
 
@@ -107,7 +106,7 @@ class AnvilResultListener : Listener {
         }
 
         // Merge
-        val canMerge = leftItem.canMergeWith(rightItem!!)
+        val canMerge = leftItem.canMergeWith(rightItem)
         if (canMerge) {
             val result = AnvilMergeLogic.doMerge(view, inventory, player, leftItem, rightItem)
 

src/main/kotlin/xyz/alexcrea/cuanvil/util/MaterialUtil.kt

@@ -1,5 +1,6 @@
 package xyz.alexcrea.cuanvil.util
 
+import org.bukkit.Bukkit
 import org.bukkit.Material
 import org.bukkit.NamespacedKey
 import org.bukkit.inventory.ItemStack