Game crashing when hover over any item from crafting grid

[johnfromstatefarm]

Describe the bug

I am running your EMI + JEI + Curios addon for the latest milestone version of Refined Storage 2.

Hovering over any item inside the grid or crafting grid causes a crash.

How can we reproduce this bug or crash?

1. Install EMI + JEI + CURIOS and their addons from your github.
2. Create a basic grid/crafting grid and place a stack of logs or wood inside.
3. Hover over any item and you instantly crash.

What Minecraft version is this happening on?

Minecraft 1.21

What NeoForge or Fabric version is this happening on?

Latest neoforge 120. Tested with 117 too.

What version is this happening on?

1.21.1 Minecraft - Latest version for all addons

Relevant log output

---- Extracted relevant information ----

Time: 2025-02-17 16:46:18
Description: Rendering screen

java.lang.ClassCastException: class net.minecraft.world.item.ItemStack cannot be cast to class dev.emi.emi.api.stack.EmiIngredient
	at TRANSFORMER/refinedstorage_emi_integration@0.6.0/com.refinedmods.refinedstorage.emi.common.GridEmiStackProvider.lambda$getStackAt$0(GridEmiStackProvider.java:28) ~[refinedstorage-emi-integration-neoforge-0.6.0.jar:?] {re:classloading}
	at java.base/java.util.Optional.map(Optional.java:260) ~[?:?] {re:mixin}
	at TRANSFORMER/refinedstorage_emi_integration@0.6.0/com.refinedmods.refinedstorage.emi.common.GridEmiStackProvider.getStackAt(GridEmiStackProvider.java:27) ~[refinedstorage-emi-integration-neoforge-0.6.0.jar:?] {re:classloading}
	at TRANSFORMER/emi@1.1.19+1.21.1+neoforge/dev.emi.emi.registry.EmiStackProviders.getStackAt(EmiStackProviders.java:49) ~[emi-1.1.19+1.21.1+neoforge.jar:?] {re:classloading}
	at TRANSFORMER/emi@1.1.19+1.21.1+neoforge/dev.emi.emi.screen.EmiScreenManager.getHoveredStack(EmiScreenManager.java:534) ~[emi-1.1.19+1.21.1+neoforge.jar:?] {re:mixin,re:classloading}
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.renderer.GameRenderer.render(GameRenderer.java:1092) ~[client-1.21.1-20240808.144430-srg.jar:?] {re:mixin,pl:accesstransformer:B}

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Render thread
Stacktrace:
	at TRANSFORMER/refinedstorage_emi_integration@0.6.0/com.refinedmods.refinedstorage.emi.common.GridEmiStackProvider.lambda$getStackAt$0(GridEmiStackProvider.java:28) ~[refinedstorage-emi-integration-neoforge-0.6.0.jar:?] {re:classloading}
	at java.base/java.util.Optional.map(Optional.java:260) ~[?:?] {re:mixin}

[raoulvdberge]

Why are you running EMI and JEI at the same time?

[johnfromstatefarm]

EMI apparently says it can work alongside JEI and use the JEI addons. I figured that was the issue after testing your various addons together and separate.

As for the EMI craftables accuracy, the issue with them is fixed with JEI addon is used, but of course, the game will crash when you hover over anything. I opened an issue for it on the emi addon github.

[raoulvdberge]

When EMI says that, I don't think you should still be including JEI as EMI is adding compatibility themselves with JEI already?

[johnfromstatefarm]

Well, I only did to see if it would fix the issue with the EMI craftables displaying items that I can't craft. Which it did, but then the UI issue happened.

Regardless, hopefully any of this information will help you.

[twothe]

Having the same issue:

[25Nov2025 01:16:46.109] [Render thread/ERROR] [EMI/]: Error rendering tooltip
java.lang.IllegalArgumentException: Unknown ingredient class: class dev.emi.emi.api.stack.ItemEmiStack
	at TRANSFORMER/jei@19.25.1.328/mezz.jei.library.ingredients.IngredientManager.lambda$getIngredientHelper$0(IngredientManager.java:65) ~[jei-1.21.1-neoforge-19.25.1.328.jar%23917!/:19.25.1.328]
	at java.base/java.util.Optional.orElseThrow(Optional.java:403) ~[?:?]
	at TRANSFORMER/jei@19.25.1.328/mezz.jei.library.ingredients.IngredientManager.getIngredientHelper(IngredientManager.java:65) ~[jei-1.21.1-neoforge-19.25.1.328.jar%23917!/:19.25.1.328]
	at TRANSFORMER/refinedstorage_jei_integration@1.0.0/com.refinedmods.refinedstorage.jei.common.GridGuiContainerHandler.convertToClickableIngredient(GridGuiContainerHandler.java:45) ~[refinedstorage-jei-integration-neoforge-1.0.0.jar%231047!/:?]
	at TRANSFORMER/refinedstorage_jei_integration@1.0.0/com.refinedmods.refinedstorage.jei.common.GridGuiContainerHandler.lambda$getClickableIngredientUnderMouse$0(GridGuiContainerHandler.java:38) ~[refinedstorage-jei-integration-neoforge-1.0.0.jar%231047!/:?]
	at java.base/java.util.Optional.flatMap(Optional.java:289) ~[?:?]
	at TRANSFORMER/refinedstorage_jei_integration@1.0.0/com.refinedmods.refinedstorage.jei.common.GridGuiContainerHandler.getClickableIngredientUnderMouse(GridGuiContainerHandler.java:37) ~[refinedstorage-jei-integration-neoforge-1.0.0.jar%231047!/:?]
	at TRANSFORMER/refinedstorage_jei_integration@1.0.0/com.refinedmods.refinedstorage.jei.common.GridGuiContainerHandler.getClickableIngredientUnderMouse(GridGuiContainerHandler.java:16) ~[refinedstorage-jei-integration-neoforge-1.0.0.jar%231047!/:?]
	at TRANSFORMER/jei@19.25.1.328/mezz.jei.api.gui.handlers.IGuiContainerHandler.getClickableIngredientUnderMouse(IGuiContainerHandler.java:49) ~[jei-1.21.1-neoforge-19.25.1.328.jar%23917!/:19.25.1.328]
	at TRANSFORMER/jei@19.25.1.328/mezz.jei.library.gui.helpers.ScreenHelper.lambda$getGuiContainerHandlerIngredients$2(ScreenHelper.java:138) ~[jei-1.21.1-neoforge-19.25.1.328.jar%23917!/:19.25.1.328]
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?]
	at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1685) ~[?:?]
	at java.base/java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:280) ~[?:?]
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?]
	at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197) ~[?:?]
	at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179) ~[?:?]
	at java.base/java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1685) ~[?:?]
	at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.lambda$initPartialTraversalState$0(StreamSpliterators.java:292) ~[?:?]
	at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.fillBuffer(StreamSpliterators.java:206) ~[?:?]
	at java.base/java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.doAdvance(StreamSpliterators.java:161) ~[?:?]
	at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.tryAdvance(StreamSpliterators.java:298) ~[?:?]
	at java.base/java.util.stream.Streams$ConcatSpliterator.tryAdvance(Streams.java:720) ~[?:?]
	at java.base/java.util.stream.Streams$ConcatSpliterator.tryAdvance(Streams.java:720) ~[?:?]
	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:129) ~[?:?]
	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:527) ~[?:?]
	at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:513) ~[?:?]
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?]
	at java.base/java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150) ~[?:?]
	at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
	at java.base/java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:647) ~[?:?]
	at TRANSFORMER/emi@1.1.22+1.21.1+neoforge/dev.emi.emi.jemi.JemiPlugin.lambda$register$3(JemiPlugin.java:156) ~[emi-1.1.22+1.21.1+neoforge.jar%23817!/:?]
	at TRANSFORMER/emi@1.1.22+1.21.1+neoforge/dev.emi.emi.registry.EmiStackProviders.getStackAt(EmiStackProviders.java:49) ~[emi-1.1.22+1.21.1+neoforge.jar%23817!/:?]
	at TRANSFORMER/emi@1.1.22+1.21.1+neoforge/dev.emi.emi.screen.EmiScreenManager.getHoveredStack(EmiScreenManager.java:544) ~[emi-1.1.22+1.21.1+neoforge.jar%23817!/:?]
	at TRANSFORMER/emi@1.1.22+1.21.1+neoforge/dev.emi.emi.screen.EmiScreenManager.getHoveredStack(EmiScreenManager.java:525) ~[emi-1.1.22+1.21.1+neoforge.jar%23817!/:?]
	at TRANSFORMER/emi@1.1.22+1.21.1+neoforge/dev.emi.emi.screen.EmiScreenManager.renderCurrentTooltip(EmiScreenManager.java:768) ~[emi-1.1.22+1.21.1+neoforge.jar%23817!/:?]
	at TRANSFORMER/emi@1.1.22+1.21.1+neoforge/dev.emi.emi.screen.EmiScreenManager.drawForeground(EmiScreenManager.java:677) ~[emi-1.1.22+1.21.1+neoforge.jar%23817!/:?]
	at TRANSFORMER/emi@1.1.22+1.21.1+neoforge/dev.emi.emi.platform.neoforge.EmiClientNeoForge.postRenderScreen(EmiClientNeoForge.java:96) ~[emi-1.1.22+1.21.1+neoforge.jar%23817!/:?]
	at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.ConsumerEventHandler.invoke(ConsumerEventHandler.java:27) ~[bus-8.0.5.jar%23110!/:?]
	at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.EventBus.post(EventBus.java:360) ~[bus-8.0.5.jar%23110!/:?]
	at MC-BOOTSTRAP/net.neoforged.bus/net.neoforged.bus.EventBus.post(EventBus.java:328) ~[bus-8.0.5.jar%23110!/:?]
	at TRANSFORMER/neoforge@21.1.212/net.neoforged.neoforge.client.ClientHooks.drawScreenInternal(ClientHooks.java:430) ~[neoforge-21.1.212-universal.jar%23662!/:?]
	at TRANSFORMER/neoforge@21.1.212/net.neoforged.neoforge.client.ClientHooks.drawScreen(ClientHooks.java:423) ~[neoforge-21.1.212-universal.jar%23662!/:?]
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.renderer.GameRenderer.mixinextras$bridge$drawScreen$269(GameRenderer.java) ~[client-1.21.1-20240808.144430-srg.jar%23661!/:?]
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.renderer.GameRenderer.wrapOperation$dge000$konkrete$wrapRenderScreen_Konkrete(GameRenderer.java:6796) ~[client-1.21.1-20240808.144430-srg.jar%23661!/:?]
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.renderer.GameRenderer.mixinextras$bridge$wrapOperation$dge000$konkrete$wrapRenderScreen_Konkrete$270(GameRenderer.java) ~[client-1.21.1-20240808.144430-srg.jar%23661!/:?]
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.renderer.GameRenderer.wrapOperation$egg000$fancymenu$wrapRenderScreenFancyMenu(GameRenderer.java:8299) ~[client-1.21.1-20240808.144430-srg.jar%23661!/:?]
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.renderer.GameRenderer.render(GameRenderer.java:1092) ~[client-1.21.1-20240808.144430-srg.jar%23661!/:?]
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.runTick(Minecraft.java:1195) ~[client-1.21.1-20240808.144430-srg.jar%23661!/:?]
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.Minecraft.run(Minecraft.java:807) ~[client-1.21.1-20240808.144430-srg.jar%23661!/:?]
	at TRANSFORMER/minecraft@1.21.1/net.minecraft.client.main.Main.main(Main.java:230) ~[client-1.21.1-20240808.144430-srg.jar%23661!/:?]
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103) ~[?:?]
	at java.base/java.lang.reflect.Method.invoke(Method.java:580) ~[?:?]
	at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.runTarget(CommonLaunchHandler.java:136) ~[loader-4.0.42.jar%23107!/:4.0]
	at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.clientService(CommonLaunchHandler.java:124) ~[loader-4.0.42.jar%23107!/:4.0]
	at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonClientLaunchHandler.runService(CommonClientLaunchHandler.java:32) ~[loader-4.0.42.jar%23107!/:4.0]
	at MC-BOOTSTRAP/fml_loader@4.0.42/net.neoforged.fml.loading.targets.CommonLaunchHandler.lambda$launchService$4(CommonLaunchHandler.java:118) ~[loader-4.0.42.jar%23107!/:4.0]
	at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:30) [modlauncher-11.0.5.jar%23112!/:?]
	at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:53) [modlauncher-11.0.5.jar%23112!/:?]
	at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:71) [modlauncher-11.0.5.jar%23112!/:?]
	at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.run(Launcher.java:103) [modlauncher-11.0.5.jar%23112!/:?]
	at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.Launcher.main(Launcher.java:74) [modlauncher-11.0.5.jar%23112!/:?]
	at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:26) [modlauncher-11.0.5.jar%23112!/:?]
	at MC-BOOTSTRAP/cpw.mods.modlauncher@11.0.5/cpw.mods.modlauncher.BootstrapLaunchConsumer.accept(BootstrapLaunchConsumer.java:23) [modlauncher-11.0.5.jar%23112!/:?]
	at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.run(BootstrapLauncher.java:210) [bootstraplauncher-2.0.2.jar:?]
	at cpw.mods.bootstraplauncher@2.0.2/cpw.mods.bootstraplauncher.BootstrapLauncher.main(BootstrapLauncher.java:69) [bootstraplauncher-2.0.2.jar:?]

This makes this mod completely unusable when running JEI and EMI.

Running both mods is common in many modpacks, as while some players enjoy the flexibility of EMI, other players like to stay what they know. In any case this bug is only happening with this mod, so at least it should be catched, or if possible fixed.

[twothe]

ChatGPT Analysis

Summary:
When hovering items in the Grid/Crafting Grid, the JEI handler used the global RefinedStorageApi ingredient converter. If EMI is present, this converter may return an EMI ingredient, which the JEI path then treats as a JEI ingredient. This cross-mod type leakage leads to a hover crash. The JEI code now uses the JEI-specific JeiRecipeModIngredientConverter and sets the clickable area to the actual mouse position.

Affected code paths:

• GridGuiContainerHandler#getClickableIngredientUnderMouse(...)
• ResourceGuiContainerHandler#convertToIngredient(...)
• ResourceGuiContainerHandler#getClickableIngredientUnderMouse(...) (pass mouse coords)
• ResourceGuiContainerHandler#convertToClickableIngredient(...) (use mouse coords for clickable area)

Patch (excerpt):

diff --git a/refinedstorage-jei-integration-common/src/main/java/com/refinedmods/refinedstorage/jei/common/GridGuiContainerHandler.java b/refinedstorage-jei-integration-common/src/main/java/com/refinedmods/refinedstorage/jei/common/GridGuiContainerHandler.java
@@
-        return RefinedStorageApi.INSTANCE.getIngredientConverter().convertToIngredient(underlyingResource).flatMap(
-            ingredient -> convertToClickableIngredient(mouseX, mouseY, ingredient)
-        );
+        // Use the JEI-specific converter to avoid cross-mod ingredient types (e.g., EMI)
+        return new JeiRecipeModIngredientConverter()
+            .convertToIngredient(underlyingResource)
+            .flatMap(ingredient -> convertToClickableIngredient(mouseX, mouseY, ingredient));

diff --git a/refinedstorage-jei-integration-common/src/main/java/com/refinedmods/refinedstorage/jei/common/ResourceGuiContainerHandler.java b/refinedstorage-jei-integration-common/src/main/java/com/refinedmods/refinedstorage/jei/common/ResourceGuiContainerHandler.java
@@
-    public Optional<IClickableIngredient<?>> getClickableIngredientUnderMouse(
-        final AbstractBaseScreen<?> baseScreen,
-        final double mouseX,
-        final double mouseY
-    ) {
-        return convertToIngredient(baseScreen.getHoveredResource()).flatMap(this::convertToClickableIngredient);
-    }
+    public Optional<IClickableIngredient<?>> getClickableIngredientUnderMouse(
+        final AbstractBaseScreen<?> baseScreen,
+        final double mouseX,
+        final double mouseY
+    ) {
+        return convertToIngredient(baseScreen.getHoveredResource())
+            .flatMap(ingredient -> convertToClickableIngredient(mouseX, mouseY, ingredient));
+    }
@@
-    public Optional<Object> convertToIngredient(@Nullable final PlatformResourceKey resource) {
+    public Optional<Object> convertToIngredient(@Nullable final PlatformResourceKey resource) {
         if (resource == null) {
             return Optional.empty();
         }
-        return RefinedStorageApi.INSTANCE.getIngredientConverter().convertToIngredient(resource);
+        // Use the JEI-specific converter to prevent EMI ingredient leakage
+        return new JeiRecipeModIngredientConverter().convertToIngredient(resource);
     }
 
-    private Optional<IClickableIngredient<?>> convertToClickableIngredient(final Object ingredient) {
+    private Optional<IClickableIngredient<?>> convertToClickableIngredient(
+        final double x, final double y, final Object ingredient
+    ) {
         final IIngredientHelper<Object> helper = ingredientManager.getIngredientHelper(ingredient);
         final Optional<ITypedIngredient<Object>> maybeTypedIngredient = ingredientManager.createTypedIngredient(
             helper.getIngredientType(),
             ingredient
         );
-        return maybeTypedIngredient.map(typedIngredient -> new ClickableIngredient<>(typedIngredient, 16, 16));
+        return maybeTypedIngredient.map(typedIngredient -> new ClickableIngredient<>(typedIngredient, (int) x, (int) y));
     }

Result:

• No cross-mod ingredient type leakage between JEI and EMI; hover crash resolved.
• Clickable area matches the actual mouse position.