diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/api/gps/GPSNetwork.java b/src/main/java/io/github/thebusybiscuit/slimefun4/api/gps/GPSNetwork.java
index 295c28370..f2b65f821 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/api/gps/GPSNetwork.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/api/gps/GPSNetwork.java
@@ -111,8 +111,8 @@ public class GPSNetwork {
         for (Location l : locations) {
             SlimefunItem item = BlockStorage.check(l);
 
-            if (item instanceof GPSTransmitter) {
-                level += ((GPSTransmitter) item).getMultiplier(Math.max(l.getBlockY(), 0));
+            if (item instanceof GPSTransmitter transmitter) {
+                level += transmitter.getMultiplier(Math.max(l.getBlockY(), 0));
             }
         }
 
@@ -172,10 +172,10 @@ public class GPSNetwork {
 
             SlimefunItem sfi = BlockStorage.check(l);
 
-            if (sfi instanceof GPSTransmitter) {
+            if (sfi instanceof GPSTransmitter transmitter) {
                 int slot = inventory[index];
 
-                menu.addItem(slot, new CustomItemStack(SlimefunItems.GPS_TRANSMITTER, "&bGPS Transmitter", "&8\u21E8 &7World: &f" + l.getWorld().getName(), "&8\u21E8 &7X: &f" + l.getX(), "&8\u21E8 &7Y: &f" + l.getY(), "&8\u21E8 &7Z: &f" + l.getZ(), "", "&8\u21E8 &7Signal Strength: &f" + ((GPSTransmitter) sfi).getMultiplier(l.getBlockY()), "&8\u21E8 &7Ping: &f" + NumberUtils.roundDecimalNumber(1000D / l.getY()) + "ms"));
+                menu.addItem(slot, new CustomItemStack(SlimefunItems.GPS_TRANSMITTER, "&bGPS Transmitter", "&8\u21E8 &7World: &f" + l.getWorld().getName(), "&8\u21E8 &7X: &f" + l.getX(), "&8\u21E8 &7Y: &f" + l.getY(), "&8\u21E8 &7Z: &f" + l.getZ(), "", "&8\u21E8 &7Signal Strength: &f" + transmitter.getMultiplier(l.getBlockY()), "&8\u21E8 &7Ping: &f" + NumberUtils.roundDecimalNumber(1000D / l.getY()) + "ms"));
                 menu.addMenuClickHandler(slot, ChestMenuUtils.getEmptyClickHandler());
 
                 index++;
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/api/items/HashedArmorpiece.java b/src/main/java/io/github/thebusybiscuit/slimefun4/api/items/HashedArmorpiece.java
index bb6055555..ae31cb93c 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/api/items/HashedArmorpiece.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/api/items/HashedArmorpiece.java
@@ -61,8 +61,8 @@ public final class HashedArmorpiece {
             this.hash = copy.hashCode();
         }
 
-        if (item instanceof SlimefunArmorPiece slimefunArmorPiece) {
-            this.item = Optional.of(slimefunArmorPiece);
+        if (item instanceof SlimefunArmorPiece armorPiece) {
+            this.item = Optional.of(armorPiece);
         } else {
             this.item = Optional.empty();
         }
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/armor/StomperBoots.java b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/armor/StomperBoots.java
index 775f24576..efeab6843 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/armor/StomperBoots.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/items/armor/StomperBoots.java
@@ -51,7 +51,7 @@ public class StomperBoots extends SlimefunItem {
         player.setVelocity(new Vector(0, 0.7, 0));
 
         for (Entity entity : player.getNearbyEntities(4, 4, 4)) {
-            if (entity instanceof LivingEntity && canPush(player, (LivingEntity) entity)) {
+            if (entity instanceof LivingEntity livingEntity && canPush(player, livingEntity)) {
                 Vector velocity = getShockwave(player.getLocation(), entity.getLocation());
                 entity.setVelocity(velocity);
 
@@ -61,7 +61,7 @@ public class StomperBoots extends SlimefunItem {
                     Bukkit.getPluginManager().callEvent(event);
 
                     if (!event.isCancelled()) {
-                        ((LivingEntity) entity).damage(event.getDamage());
+                        livingEntity.damage(event.getDamage());
                     }
                 }
             }
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/listeners/EnhancedFurnaceListener.java b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/listeners/EnhancedFurnaceListener.java
index 8c9a6215a..323be5c55 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/listeners/EnhancedFurnaceListener.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/implementation/listeners/EnhancedFurnaceListener.java
@@ -47,9 +47,9 @@ public class EnhancedFurnaceListener implements Listener {
 
         SlimefunItem furnace = BlockStorage.check(e.getBlock());
 
-        if (furnace instanceof EnhancedFurnace && ((EnhancedFurnace) furnace).getFuelEfficiency() > 0) {
+        if (furnace instanceof EnhancedFurnace enhancedFurnace && enhancedFurnace.getFuelEfficiency() > 0) {
             int burnTime = e.getBurnTime();
-            int newBurnTime = ((EnhancedFurnace) furnace).getFuelEfficiency() * burnTime;
+            int newBurnTime = enhancedFurnace.getFuelEfficiency() * burnTime;
 
             e.setBurnTime(Math.min(newBurnTime, Short.MAX_VALUE - 1));
         }
@@ -64,14 +64,14 @@ public class EnhancedFurnaceListener implements Listener {
 
         SlimefunItem sfItem = BlockStorage.check(e.getBlock());
 
-        if (sfItem instanceof EnhancedFurnace) {
+        if (sfItem instanceof EnhancedFurnace enhancedFurnace) {
             BlockState state = PaperLib.getBlockState(e.getBlock(), false).getState();
 
-            if (state instanceof Furnace) {
-                FurnaceInventory inventory = ((Furnace) state).getInventory();
+            if (state instanceof Furnace furnace) {
+                FurnaceInventory inventory = furnace.getInventory();
 
                 boolean multiplier = SlimefunTag.ENHANCED_FURNACE_LUCK_MATERIALS.isTagged(inventory.getSmelting().getType());
-                int amount = multiplier ? ((EnhancedFurnace) sfItem).getRandomOutputAmount() : 1;
+                int amount = multiplier ? enhancedFurnace.getRandomOutputAmount() : 1;
                 Optional<ItemStack> result = Slimefun.getMinecraftRecipeService().getFurnaceOutput(inventory.getSmelting());
 
                 if (result.isPresent()) {
diff --git a/src/main/java/io/github/thebusybiscuit/slimefun4/utils/ChestMenuUtils.java b/src/main/java/io/github/thebusybiscuit/slimefun4/utils/ChestMenuUtils.java
index 85f20f08f..3df992835 100644
--- a/src/main/java/io/github/thebusybiscuit/slimefun4/utils/ChestMenuUtils.java
+++ b/src/main/java/io/github/thebusybiscuit/slimefun4/utils/ChestMenuUtils.java
@@ -137,8 +137,8 @@ public final class ChestMenuUtils {
         ItemMeta im = item.getItemMeta();
         im.addItemFlags(ItemFlag.HIDE_ATTRIBUTES);
 
-        if (im instanceof Damageable) {
-            ((Damageable) im).setDamage(getDurability(item, timeLeft, time));
+        if (im instanceof Damageable damageable) {
+            damageable.setDamage(getDurability(item, timeLeft, time));
         }
 
         im.setDisplayName(" ");