getting the tooltip of a bee cage on the server causes a crash

[MrNoahMango]

this line in the code for bee cages uses the Screen object to check if shift is held, but that causes an exception on dedicated servers when the tooltip is read with something like Integrated Dynamics.

[JaisDK]

sounds like an ID issue
can you post the crash report please

[MrNoahMango]

Error + Stack trace:

Time: 2026-04-29 12:11:52
Description: Exception in server tick loop

java.lang.RuntimeException: Attempted to load class net/minecraft/client/gui/screens/Screen for invalid dist DEDICATED_SERVER
	at net.minecraftforge.fml.loading.RuntimeDistCleaner.processClassWithFlags(RuntimeDistCleaner.java:57) ~[fmlloader-1.20.1-47.4.0.jar%2369!/:1.0] {}
	at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88) ~[modlauncher-10.0.9.jar%2355!/:?] {}
	at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120) ~[modlauncher-10.0.9.jar%2355!/:?] {}
	at cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50) ~[modlauncher-10.0.9.jar%2355!/:?] {}
	at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:113) ~[securejarhandler-2.1.10.jar:?] {}
	at cpw.mods.cl.ModuleClassLoader.lambda$findClass$15(ModuleClassLoader.java:219) ~[securejarhandler-2.1.10.jar:?] {}
	at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:229) ~[securejarhandler-2.1.10.jar:?] {}
	at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:219) ~[securejarhandler-2.1.10.jar:?] {}
	at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:135) ~[securejarhandler-2.1.10.jar:?] {}
	at java.lang.ClassLoader.loadClass(ClassLoader.java:526) ~[?:?] {}
	at cy.jdkdigital.productivebees.common.item.BeeCage.m_7373_(BeeCage.java:224) ~[productivebees-1.20.1-12.6.0.jar%23834!/:1.20.1-12.6.0] {re:classloading}
	at net.minecraft.world.item.ItemStack.m_41651_(ItemStack.java:631) ~[server-1.20.1-20230612.114412-srg.jar%23951!/:?] {re:mixin,xf:fml:forge:itemstack,re:classloading,xf:fml:forge:itemstack,pl:mixin:APP:apotheosis.mixins.json:ItemStackMixin,pl:mixin:APP:useitemonblockevent.mixins.json:ItemStackMixin,pl:mixin:APP:attributeslib.mixins.json:ItemStackMixin,pl:mixin:APP:tombstone.mixins.json:ItemStackMixin,pl:mixin:APP:placebo.mixins.json:ItemStackMixin,pl:mixin:APP:mixins.irons_spellbooks.json:ItemStackMixin,pl:mixin:APP:glitchcore.mixins.json:MixinItemStack,pl:mixin:APP:geckolib.mixins.json:common.ItemStackMixin,pl:mixin:APP:mixins.deeperdarker.json:ItemStackMixin,pl:mixin:APP:kubejs-common.mixins.json:ItemStackMixin,pl:mixin:APP:itemfilters-common.mixins.json:ItemStackMixin,pl:mixin:APP:fastsuite.mixins.json:ItemStackMixin,pl:mixin:APP:forbidden_arcanus.mixins.json:ItemStackMixin,pl:mixin:APP:quark.mixins.json:ItemStackMixin,pl:mixin:A}
	at org.cyclops.integrateddynamics.core.evaluate.operator.Operators.lambda$static$127(Operators.java:1988) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.evaluate.operator.OperatorBase.evaluate(OperatorBase.java:214) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.evaluate.expression.LazyExpression.evaluate(LazyExpression.java:43) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.evaluate.expression.LazyExpression.getValue(LazyExpression.java:65) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.part.panel.PartTypePanelVariableDriven.update(PartTypePanelVariableDriven.java:115) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.part.panel.PartTypePanelVariableDriven.update(PartTypePanelVariableDriven.java:67) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.network.PartNetworkElement.update(PartNetworkElement.java:168) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.network.Network.update(Network.java:408) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.TickHandler.onTick(TickHandler.java:74) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading}
	at org.cyclops.integrateddynamics.core.__TickHandler_onTick_TickEvent.invoke(.dynamic) ~[IntegratedDynamics-1.20.1-1.25.5.jar%23723!/:1.25.5] {re:classloading,pl:eventbus:B}
	at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:73) ~[eventbus-6.0.5.jar%2352!/:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:315) ~[eventbus-6.0.5.jar%2352!/:?] {}
	at net.minecraftforge.eventbus.EventBus.post(EventBus.java:296) ~[eventbus-6.0.5.jar%2352!/:?] {}
	at net.minecraftforge.event.ForgeEventFactory.onPostServerTick(ForgeEventFactory.java:975) ~[forge-1.20.1-47.4.0-universal.jar%23956!/:?] {re:mixin,re:classloading,pl:mixin:APP:modernfix-forge.mixins.json:perf.potential_spawns_alloc.ForgeEventFactoryMixin,pl:mixin:APP:aether.mixins.json:common.ForgeEventFactoryMixin,pl:mixin:A}
	at net.minecraft.server.MinecraftServer.m_5705_(MinecraftServer.java:835) ~[server-1.20.1-20230612.114412-srg.jar%23951!/:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:modernfix-common.mixins.json:perf.dedicated_reload_executor.MinecraftServerMixin,pl:mixin:APP:modernfix-common.mixins.json:core.MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:APP:dankstorage.mixins.json:MinecraftServerAccess,pl:mixin:APP:kubejs-common.mixins.json:MinecraftServerMixin,pl:mixin:APP:kubejs-common.mixins.json:inject_resources.MinecraftServerMixin,pl:mixin:APP:ae2.mixins.json:spatial.MinecraftServerMixin,pl:mixin:A}
	at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServer.java:661) ~[server-1.20.1-20230612.114412-srg.jar%23951!/:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:modernfix-common.mixins.json:perf.dedicated_reload_executor.MinecraftServerMixin,pl:mixin:APP:modernfix-common.mixins.json:core.MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:APP:dankstorage.mixins.json:MinecraftServerAccess,pl:mixin:APP:kubejs-common.mixins.json:MinecraftServerMixin,pl:mixin:APP:kubejs-common.mixins.json:inject_resources.MinecraftServerMixin,pl:mixin:APP:ae2.mixins.json:spatial.MinecraftServerMixin,pl:mixin:A}
	at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServer.java:251) ~[server-1.20.1-20230612.114412-srg.jar%23951!/:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:modernfix-common.mixins.json:perf.dedicated_reload_executor.MinecraftServerMixin,pl:mixin:APP:modernfix-common.mixins.json:core.MinecraftServerMixin,pl:mixin:APP:balm.mixins.json:MinecraftServerMixin,pl:mixin:APP:dankstorage.mixins.json:MinecraftServerAccess,pl:mixin:APP:kubejs-common.mixins.json:MinecraftServerMixin,pl:mixin:APP:kubejs-common.mixins.json:inject_resources.MinecraftServerMixin,pl:mixin:APP:ae2.mixins.json:spatial.MinecraftServerMixin,pl:mixin:A}
	at java.lang.Thread.run(Thread.java:1583) ~[?:?] {re:mixin}

I think the error comes from this code, specifically Screen.hasShiftDown():

productive-bees/src/main/java/cy/jdkdigital/productivebees/common/item/BeeCage.java

Lines 226 to 246 in 97e7bae

	public void appendHoverText(ItemStack pStack, TooltipContext pContext, List<Component> pTooltipComponents, TooltipFlag pTooltipFlag) {
	super.appendHoverText(pStack, pContext, pTooltipComponents, pTooltipFlag);
	var data = pStack.get(DataComponents.CUSTOM_DATA);
	if (data != null && !data.getUnsafe().equals(new CompoundTag())) {
	var tag = data.copyTag();
	if (Screen.hasShiftDown()) {
	boolean hasStung = tag.getBoolean("HasStung");
	if (hasStung) {
	pTooltipComponents.add(Component.translatable("productivebees.information.health.dying").withStyle(ChatFormatting.RED).withStyle(ChatFormatting.ITALIC));
	}
	BeeHelper.populateBeeInfoFromTag(tag, pTooltipComponents);
	if (tag.contains("HivePos")) {
	pTooltipComponents.add(Component.translatable("productivebees.information.cage_release"));
	}
	} else {
	pTooltipComponents.add(Component.translatable("productivebees.information.hold_shift").withStyle(ChatFormatting.WHITE));
	}
	}
	}

Integrated Dynamics appears to call that from the server when you get the tooltip of an item, but because the Screen object can't be accessed on a dedicated server, it throws an exception.

(By the way: Is there any way to get the breeding item of a bee in a bee cage from item NBT alone?)