Port to 26.1.x by MasatoNakajima20 · Pull Request #950 · Tschipp/CarryOn

MasatoNakajima20 · 2026-05-08T08:06:11Z

No description provided.

…ure class init

- Fixed crash on startup (Components not bound yet) caused by InventoryMixin creating an ItemStack as a static field before data components were initialized. Replaced with lazy creation via method call.

vico93 · 2026-05-08T14:01:36Z

Thank you so much for this @MasatoNakajima20!

BTW, judging from your selection of mods you are updating, by chance are you accepting suggestions for other mods to port? I'm really missing Earth2Java since 1.20.x and wonder if you would like to port that as well.

cputnam-a11y

Hi, I am not Tschipp, but I figured I would review. please feel free to object / disregard / dismiss if you disagree on any of these points.

cputnam-a11y · 2026-05-08T14:15:33Z

 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.block.Blocks;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.Unique;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import tschipp.carryon.common.carry.CarryOnData;
 import tschipp.carryon.common.carry.CarryOnDataManager;

 @Mixin(Inventory.class)
 public class InventoryMixin
 {
 	@Unique
-	private static final ItemStack DUMMY_STACK = new ItemStack(Blocks.COBBLESTONE, 1);
+	private static ItemStack getDummyStack() {
+		return new ItemStack(Blocks.COBBLESTONE, 1);
+	}

 	@Shadow
 	public Player player;

 	@Shadow
 	public int selected;

 	@Shadow
 	public NonNullList<ItemStack> items;

 	@WrapOperation(method = "getFreeSlot()I", at = @At(value = "INVOKE", ordinal = 0, target = "Lnet/minecraft/core/NonNullList;get(I)Ljava/lang/Object;"))
 	private Object getFreeSlotEmptyCheck(NonNullList<Object> instance, int slot, Operation<Object> original)
 	{
 		if(slot == selected && CarryOnDataManager.getCarryData(player).isCarrying())
 		{
-			return DUMMY_STACK;
+			return getDummyStack();


Suggested change

return getDummyStack();

import net.minecraft.world.item.ItemStackTemplate;

import net.minecraft.world.level.block.Blocks;

import org.spongepowered.asm.mixin.Mixin;

import org.spongepowered.asm.mixin.Shadow;

import org.spongepowered.asm.mixin.Unique;

import org.spongepowered.asm.mixin.injection.At;

import org.spongepowered.asm.mixin.injection.Inject;

import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

import tschipp.carryon.common.carry.CarryOnData;

import tschipp.carryon.common.carry.CarryOnDataManager;

@Mixin(Inventory.class)

public class InventoryMixin

{

@Unique

private static ItemStack DUMMY_STACK = new ItemStackTemplate(Blocks.COBBLESTONE.asItem());

@Shadow

public Player player;

@@ -56,7 +58,7 @@

{

if(slot == selected && CarryOnDataManager.getCarryData(player).isCarrying())

{

return DUMMY_STACK.create();

cputnam-a11y · 2026-05-08T14:18:25Z

-		var layer = renderState.newLayer();
-		layer.setRenderType(RenderTypes.glint());


Is this just no longer needed? It seems like it would be a change in behavior.

cputnam-a11y · 2026-05-08T14:24:20Z

-        exclusiveContent {
-            forRepository {
-                maven {
-                    name = 'Fabric'
-                    url = uri('https://maven.fabricmc.net')
-                }
-            }
-            filter {
-                includeGroup('net.fabricmc')
-                includeGroup('net.fabricmc.unpick')
-                includeGroup('fabric-loom')
-                includeGroup('net.fabricmc.unpick')
-            }


Is this correct? removing exclusive content will make the build slower (by a small amount, don't know that it matters that much). Usually I see

exclusiveContent { forRepository { maven { name = 'Fabric' url = uri('https://maven.fabricmc.net') } } filter { includeGroupAndSubgroups('net.fabricmc') } } }

cputnam-a11y · 2026-05-08T14:30:28Z

And yeah, thanks so much for the p.r. Looking forwards to playing on 26.1

MasatoNakajima20 · 2026-05-09T08:49:53Z

Thank you so much for this @MasatoNakajima20!

BTW, judging from your selection of mods you are updating, by chance are you accepting suggestions for other mods to port? I'm really missing Earth2Java since 1.20.x and wonder if you would like to port that as well.

Hi @vico93

You're very much welcome. Im not a modder or anything of the sort, It so happen that Im using the 2 mods for our server which were dying to update to 26.1.x. Since there are no movements for months, I just decided to look it up and take it on myself..

I finally made it work on a local save and server so I just went my way and tried to share it with the community.

TLDR
Im not actively modding, just forced by wants..

MasatoNakajima20 · 2026-05-09T09:11:04Z

Hi, I am not Tschipp, but I figured I would review. please feel free to object / disregard / dismiss if you disagree on any of these points.

Hi @cputnam-a11y

I won't object, disregard or dimiss these comments. As per my reply to Vico93, im not a modder, it so happens that I have a programming background and some knowledge with Java. I dont know anything with minecraft language or its structure, I just play. This was a big task for me, rummaging through doccumentations that I dont fully 100% understand, looking for the file that contians the line of code I need to change, I just wanted to make the mod work for 26.1.x disregarding efficiency, esp with 26.2 just looming around the corner. (Who doesn't want their world to have new features, right?)

I got it working on my local and on a deficated server so might as well share..

I'd be happy if you can help correct any mistakes that I made during my attempt to port. I'll be removing this repo anyway once the author started updating the main stream.

cputnam-a11y · 2026-05-11T19:14:51Z

Hi, I am not Tschipp, but I figured I would review. please feel free to object / disregard / dismiss if you disagree on any of these points.

Hi @cputnam-a11y

I won't object, disregard or dimiss these comments. As per my reply to Vico93, im not a modder, it so happens that I have a programming background and some knowledge with Java. I dont know anything with minecraft language or its structure, I just play. This was a big task for me, rummaging through doccumentations that I dont fully 100% understand, looking for the file that contians the line of code I need to change, I just wanted to make the mod work for 26.1.x disregarding efficiency, esp with 26.2 just looming around the corner. (Who doesn't want their world to have new features, right?)

I got it working on my local and on a deficated server so might as well share..

I'd be happy if you can help correct any mistakes that I made during my attempt to port. I'll be removing this repo anyway once the author started updating the main stream.

no worries, I'll just leave them here in case tschipp decides to use this as a base. enjoy your server :)

MasatoNakajima20 · 2026-05-11T22:33:53Z

Hi, I am not Tschipp, but I figured I would review. please feel free to object / disregard / dismiss if you disagree on any of these points.

Hi @cputnam-a11y
I won't object, disregard or dimiss these comments. As per my reply to Vico93, im not a modder, it so happens that I have a programming background and some knowledge with Java. I dont know anything with minecraft language or its structure, I just play. This was a big task for me, rummaging through doccumentations that I dont fully 100% understand, looking for the file that contians the line of code I need to change, I just wanted to make the mod work for 26.1.x disregarding efficiency, esp with 26.2 just looming around the corner. (Who doesn't want their world to have new features, right?)
I got it working on my local and on a deficated server so might as well share..
I'd be happy if you can help correct any mistakes that I made during my attempt to port. I'll be removing this repo anyway once the author started updating the main stream.

no worries, I'll just leave them here in case tschipp decides to use this as a base. enjoy your server :)

We sure are enjoying the Little Babies. Yes, Tschipp already has the groundwork in front of him. :D

KenFaze · 2026-05-22T17:47:50Z

um can i get the mod fille so i can download it right away?

cputnam-a11y · 2026-05-22T18:06:47Z

um can i get the mod fille so i can download it right away?

I would suggest not requesting unvalidated jar files, with the current wave of Minecraft malware spreading.

m4rkooss · 2026-06-01T15:34:01Z

Hi @MasatoNakajima20 ,
I’m having issues building the project.

Could you please tell me which setup was used to build it successfully?
(Gradle version, Java version, and Fabric Loom version if possible)

I tried using Java 21 and Gradle 4.9, but it didn’t work because I kept running into errors during the build process, so I’m not sure what the correct environment should be.

Thanks!

cputnam-a11y · 2026-06-01T16:05:01Z

Hi @MasatoNakajima20 , I’m having issues building the project.

Could you please tell me which setup was used to build it successfully? (Gradle version, Java version, and Fabric Loom version if possible)

I tried using Java 21 and Gradle 4.9, but it didn’t work because I kept running into errors during the build process, so I’m not sure what the correct environment should be.

Thanks!

The base project requires at least gradle 8.14, but the wrapper will take care of that. The base project requires java 21, but it was bumped to java 25 as part of this pr, so you will need java 25

cputnam-a11y · 2026-06-01T16:05:53Z

This pr also bumps the wrapper version to 9.4

m4rkooss · 2026-06-01T17:24:18Z

@cputnam-a11y
thanks for the clarification.

I’m still running into an issue when trying to build the project with the current setup (Java 25 + Gradle wrapper 9.4).

Error:
JvmVendorSpec does not have member field IBM_SEMERU

Why does this happen ?

MasatoNakajima20 · 2026-06-01T21:24:28Z

@cputnam-a11y thanks for the clarification.

I’m still running into an issue when trying to build the project with the current setup (Java 25 + Gradle wrapper 9.4).

Error: JvmVendorSpec does not have member field IBM_SEMERU

Why does this happen ?

Sorry for the lack of response..
I compiled it under

Jave 25
Loom 1.16-Snap
Gradle 9.4

m4rkooss · 2026-06-02T12:51:46Z

Hey,
sorry for bothering you again.
Could you tell me your exact workflow for building the mod? From start to finish.

For example:
Do you just clone/download the repo and run a build command?
Do you delete any folders or caches beforehand?

I'm wondering if I might have missed something simple during the setup process.

Thanks!

MasatoNakajima20 · 2026-06-02T13:23:46Z

Hey, sorry for bothering you again. Could you tell me your exact workflow for building the mod? From start to finish.

For example: Do you just clone/download the repo and run a build command? Do you delete any folders or caches beforehand?

I'm wondering if I might have missed something simple during the setup process.

Thanks!

Hi,

Clone/Fork repo
Build

Nothing added/deleted

m4rkooss · 2026-06-02T16:40:18Z

Oh, that's crazy. I honestly don't know why it's not working on my end then.

Would it be possible for you to send me the built JAR file, or maybe upload it somewhere? That way I can at least use it while I keep trying to figure out the build issue.

cputnam-a11y · 2026-06-02T19:18:23Z

@cputnam-a11y thanks for the clarification.

I’m still running into an issue when trying to build the project with the current setup (Java 25 + Gradle wrapper 9.4).

Error: JvmVendorSpec does not have member field IBM_SEMERU

Why does this happen ?

That would be an outdated version of the toolchain resolver. Not sure why you would have that, but it should be in setting.gradle, near the top

cputnam-a11y · 2026-06-02T19:19:08Z

Oh, that's crazy. I honestly don't know why it's not working on my end then.

Would it be possible for you to send me the built JAR file, or maybe upload it somewhere? That way I can at least use it while I keep trying to figure out the build issue.

For security reasons, I would suggest not, but y'all can hash that out without me.

m4rkooss · 2026-06-03T13:22:59Z

@cputnam-a11y thanks for the clarification.
I’m still running into an issue when trying to build the project with the current setup (Java 25 + Gradle wrapper 9.4).
Error: JvmVendorSpec does not have member field IBM_SEMERU
Why does this happen ?

That would be an outdated version of the toolchain resolver. Not sure why you would have that, but it should be in setting.gradle, near the top

And how can I fix that then ?

MasatoNakajima20 · 2026-06-03T20:05:58Z

@cputnam-a11y thanks for the clarification.
I’m still running into an issue when trying to build the project with the current setup (Java 25 + Gradle wrapper 9.4).
Error: JvmVendorSpec does not have member field IBM_SEMERU
Why does this happen ?

That would be an outdated version of the toolchain resolver. Not sure why you would have that, but it should be in setting.gradle, near the top

And how can I fix that then ?

There is nowhere in the build files that calls the IBM Toolchain for this Project. Have you Cloned the whole project on am empty Folder?

I'm also using Microsoft JDK Hotspot if that helps.

Maybe you may want to try and clean your gradle

.\gradlew --stop
.\gradlew clean build

Then I assume you're building via the wrapper

.\gradlew build --console=plain

cputnam-a11y · 2026-06-03T22:13:31Z

@cputnam-a11y thanks for the clarification.
I’m still running into an issue when trying to build the project with the current setup (Java 25 + Gradle wrapper 9.4).
Error: JvmVendorSpec does not have member field IBM_SEMERU
Why does this happen ?

That would be an outdated version of the toolchain resolver. Not sure why you would have that, but it should be in setting.gradle, near the top

And how can I fix that then ?

There is nowhere in the build files that calls the IBM Toolchain for this Project. Have you Cloned the whole project on am empty Folder?

I'm also using Microsoft JDK Hotspot if that helps.

Maybe you may want to try and clean your gradle

.\gradlew --stop .\gradlew clean build

Then I assume you're building via the wrapper

.\gradlew build --console=plain

Hi, the issue is in settings.gradle. I'm not sure why it doesn't appear for you, but it does exist, and should be fixed at some point

cputnam-a11y · 2026-06-03T22:13:40Z

@cputnam-a11y thanks for the clarification.
I’m still running into an issue when trying to build the project with the current setup (Java 25 + Gradle wrapper 9.4).
Error: JvmVendorSpec does not have member field IBM_SEMERU
Why does this happen ?

That would be an outdated version of the toolchain resolver. Not sure why you would have that, but it should be in setting.gradle, near the top

And how can I fix that then ?

gradle/gradle#35596 (comment)

MasatoNakajima20 · 2026-06-04T15:59:10Z

@cputnam-a11y thanks for the clarification.
I’m still running into an issue when trying to build the project with the current setup (Java 25 + Gradle wrapper 9.4).
Error: JvmVendorSpec does not have member field IBM_SEMERU
Why does this happen ?

That would be an outdated version of the toolchain resolver. Not sure why you would have that, but it should be in setting.gradle, near the top

And how can I fix that then ?

There is nowhere in the build files that calls the IBM Toolchain for this Project. Have you Cloned the whole project on am empty Folder?
I'm also using Microsoft JDK Hotspot if that helps.
Maybe you may want to try and clean your gradle
.\gradlew --stop .\gradlew clean build
Then I assume you're building via the wrapper
.\gradlew build --console=plain

Hi, the issue is in settings.gradle. I'm not sure why it doesn't appear for you, but it does exist, and should be fixed at some point

At this Point, I don't know. I ran the build again and it works fine for me.

At this point, I'm leaning into the issue that this may be JVM dependent.. That gradle issue you posted is reproducible using adoptium jvm, and I'm not using adoptium.

KaroUniform · 2026-06-13T01:34:33Z

Thanks for doing this port! 🙏 Confirming it builds and runs for us on MC 26.1.2 / Java 25.

We've been using this 26.1.x branch as a compileOnly dependency for an optional Carry On integration in our mod (ReMorphed):

Builds green for both Fabric and NeoForge from a clean checkout on Temurin 25 (stock OpenJDK — no IBM Semeru required), Gradle 9.5.
In-game (Fabric): the built carryon-fabric-26.1.2-3.0.1.jar loads in a 26.1.2 dev client and works — carrying blocks, mobs and players all function. Our compat resolves against the named mappings without any issues.
We didn't test the NeoForge runtime in-game (an unrelated dependency of ours crashes the NeoForge dev client), but the NeoForge jar compiles and builds fine.

Test environment:

Minecraft 26.1.2
Java Temurin 25.0.3 (LTS)
Fabric Loader 0.18.x, Fabric API 0.148.0+26.1.2
NeoForge 26.1.2.x (build only)
Carry On artifacts: carryon-{fabric,neoforge,common}-26.1.2-3.0.1.jar

Thanks again @MasatoNakajima20 — hope this helps toward getting the port merged!

MasatoNakajima20 · 2026-06-13T06:52:41Z

Thanks for doing this port! 🙏 Confirming it builds and runs for us on MC 26.1.2 / Java 25.

We've been using this 26.1.x branch as a compileOnly dependency for an optional Carry On integration in our mod (ReMorphed):

Builds green for both Fabric and NeoForge from a clean checkout on Temurin 25 (stock OpenJDK — no IBM Semeru required), Gradle 9.5.

In-game (Fabric): the built carryon-fabric-26.1.2-3.0.1.jar loads in a 26.1.2 dev client and works — carrying blocks, mobs and players all function. Our compat resolves against the named mappings without any issues.

We didn't test the NeoForge runtime in-game (an unrelated dependency of ours crashes the NeoForge dev client), but the NeoForge jar compiles and builds fine.

Test environment:

Minecraft 26.1.2

Java Temurin 25.0.3 (LTS)

Fabric Loader 0.18.x, Fabric API 0.148.0+26.1.2

NeoForge 26.1.2.x (build only)

Carry On artifacts: carryon-{fabric,neoforge,common}-26.1.2-3.0.1.jar

Thanks again @MasatoNakajima20 — hope this helps toward getting the port merged!

@KaroUniform - Thank you for the verifying. Keep an eye once 26.2 comes out as I'm planning to Bump to that version as soon as the APIs and the build stabilizes.

@m4rkooss, @cputnam-a11y - This highly suggests the possibility that your JDK is the one causing the compile issue and not connected to the Gradle Issue mentioned.

shinozukagreta · 2026-06-16T23:04:11Z

Very well done. I was able to build very quickly and efficiently in Terminal on Mac for my 26.1.2 world on Fabric and it runs just fine.
移植作業お疲れさまでした。: )

MasatoNakajima20 added 3 commits May 8, 2026 06:58

Port CarryOn to Minecraft 26.1.2 (version 3.0.0)

983ee89

Fix crash: defer ItemStack creation in InventoryMixin to avoid premat…

dc24c2c

…ure class init

Bugfix release 3.0.1 for Minecraft 26.1.2

4d2b856

- Fixed crash on startup (Components not bound yet) caused by InventoryMixin creating an ItemStack as a static field before data components were initialized. Replaced with lazy creation via method call.

cputnam-a11y suggested changes May 8, 2026

View reviewed changes

vico93 mentioned this pull request May 17, 2026

Disconnected from server whenever a player dies #907

Open

		var layer = renderState.newLayer();
		layer.setRenderType(RenderTypes.glint());

Conversation

MasatoNakajima20 commented May 8, 2026

Uh oh!

vico93 commented May 8, 2026

Uh oh!

cputnam-a11y left a comment

Choose a reason for hiding this comment

Uh oh!

cputnam-a11y May 8, 2026

Choose a reason for hiding this comment

Uh oh!

cputnam-a11y May 8, 2026

Choose a reason for hiding this comment

Uh oh!

cputnam-a11y May 8, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Choose a reason for hiding this comment

Uh oh!

cputnam-a11y commented May 8, 2026

Uh oh!

MasatoNakajima20 commented May 9, 2026

Uh oh!

MasatoNakajima20 commented May 9, 2026

Uh oh!

cputnam-a11y commented May 11, 2026

Uh oh!

MasatoNakajima20 commented May 11, 2026

Uh oh!

KenFaze commented May 22, 2026

Uh oh!

cputnam-a11y commented May 22, 2026

Uh oh!

m4rkooss commented Jun 1, 2026

Uh oh!

cputnam-a11y commented Jun 1, 2026

Uh oh!

cputnam-a11y commented Jun 1, 2026

Uh oh!

m4rkooss commented Jun 1, 2026

Uh oh!

MasatoNakajima20 commented Jun 1, 2026

Uh oh!

m4rkooss commented Jun 2, 2026

Uh oh!

MasatoNakajima20 commented Jun 2, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

m4rkooss commented Jun 2, 2026

Uh oh!

cputnam-a11y commented Jun 2, 2026

Uh oh!

cputnam-a11y commented Jun 2, 2026

Uh oh!

m4rkooss commented Jun 3, 2026

Uh oh!

MasatoNakajima20 commented Jun 3, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

cputnam-a11y commented Jun 3, 2026

Uh oh!

cputnam-a11y commented Jun 3, 2026

Uh oh!

MasatoNakajima20 commented Jun 4, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

KaroUniform commented Jun 13, 2026

Uh oh!

MasatoNakajima20 commented Jun 13, 2026

Uh oh!

shinozukagreta commented Jun 16, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

7 participants

cputnam-a11y May 8, 2026 •

edited

Loading

MasatoNakajima20 commented Jun 2, 2026 •

edited

Loading

MasatoNakajima20 commented Jun 3, 2026 •

edited

Loading

MasatoNakajima20 commented Jun 4, 2026 •

edited

Loading