diff --git a/arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/world/level/block/entity/AbstractFurnaceBlockEntityMixin.java b/arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/world/level/block/entity/AbstractFurnaceBlockEntityMixin.java
index 8fba2f50..af274e60 100644
--- a/arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/world/level/block/entity/AbstractFurnaceBlockEntityMixin.java
+++ b/arclight-common/src/main/java/io/izzel/arclight/common/mixin/core/world/level/block/entity/AbstractFurnaceBlockEntityMixin.java
@@ -84,11 +84,11 @@ public abstract class AbstractFurnaceBlockEntityMixin extends LockableBlockEntit
                                             boolean flag, boolean flag1, ItemStack stack, Recipe<?> recipe) {
         if (recipe != null && furnace.cookingProgress == 0) {
             CraftItemStack source = CraftItemStack.asCraftMirror(furnace.getItem(0));
-            CookingRecipe<?> cookingRecipe = (CookingRecipe<?>) ((IRecipeBridge) recipe).bridge$toBukkitRecipe();
-
-            FurnaceStartSmeltEvent event = new FurnaceStartSmeltEvent(CraftBlock.at(level, pos), source, cookingRecipe);
-            Bukkit.getPluginManager().callEvent(event);
-            furnace.cookingTotalTime = event.getTotalCookTime();
+            if (((IRecipeBridge) recipe).bridge$toBukkitRecipe() instanceof CookingRecipe<?> cookingRecipe) {
+                FurnaceStartSmeltEvent event = new FurnaceStartSmeltEvent(CraftBlock.at(level, pos), source, cookingRecipe);
+                Bukkit.getPluginManager().callEvent(event);
+                furnace.cookingTotalTime = event.getTotalCookTime();
+            }
         }
     }
 
diff --git a/forge-installer/src/main/java/io/izzel/arclight/forgeinstaller/ForgeInstaller.java b/forge-installer/src/main/java/io/izzel/arclight/forgeinstaller/ForgeInstaller.java
index 626e2295..beae34a2 100644
--- a/forge-installer/src/main/java/io/izzel/arclight/forgeinstaller/ForgeInstaller.java
+++ b/forge-installer/src/main/java/io/izzel/arclight/forgeinstaller/ForgeInstaller.java
@@ -28,7 +28,6 @@ import java.nio.file.FileSystems;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
-import java.nio.file.StandardCopyOption;
 import java.security.AccessControlContext;
 import java.util.AbstractMap;
 import java.util.ArrayList;
@@ -235,22 +234,6 @@ public class ForgeInstaller {
         List<String> ignores = new ArrayList<>();
         List<String> merges = new ArrayList<>();
         var self = new File(ForgeInstaller.class.getProtectionDomain().getCodeSource().getLocation().toURI()).toPath();
-        // todo ugly McModLauncher/securejarhandler#19
-        if (self.getParent() != null && self.getParent().getParent() != null && self.getParent().getParent().getFileName() == null) {
-            var folder = self.resolveSibling(".arclight");
-            var relocation = folder.resolve("tmp.jar");
-            if (!Files.exists(folder)) {
-                Files.createDirectories(folder);
-            }
-            try {
-                if (!Files.isSymbolicLink(relocation)) {
-                    Files.createSymbolicLink(relocation, self);
-                }
-            } catch (Exception e) {
-                Files.copy(self, relocation, StandardCopyOption.REPLACE_EXISTING);
-            }
-            self = relocation;
-        }
         for (String arg : Files.lines(path).collect(Collectors.toList())) {
             if (jvmArgs && arg.startsWith("-")) {
                 if (arg.startsWith("-p ")) {