UpdateSuppression-and-ItemShadowing patch

0890-UpdateSuppression-and-ItemShadowing.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: LIMPIX31 <[email protected]>
Date: Wed, 6 Apr 2022 18:59:50 +0300
Subject: [PATCH] UpdateSuppression-and-ItemShadowing


diff --git a/src/main/java/me/LIMPIX31/paperutils/SuppressedThrowable.java b/src/main/java/me/LIMPIX31/paperutils/SuppressedThrowable.java
new file mode 100644
index 0000000000000000000000000000000000000000..35389434e8dbd31d20e1d0a946e82bc21e758a5c
--- /dev/null
+++ b/src/main/java/me/LIMPIX31/paperutils/SuppressedThrowable.java
@@ -0,0 +1,7 @@
+package me.LIMPIX31.paperutils;
+
+public class SuppressedThrowable extends RuntimeException {
+    public SuppressedThrowable(String reason) {
+        super(reason);
+    }
+}
diff --git a/src/main/java/net/minecraft/network/protocol/PacketUtils.java b/src/main/java/net/minecraft/network/protocol/PacketUtils.java
index 230f5adc4df1679597f5b9aa9fcd36501efbebdd..d19b8dd9aad623522db62fef9cdde918239dc816 100644
--- a/src/main/java/net/minecraft/network/protocol/PacketUtils.java
+++ b/src/main/java/net/minecraft/network/protocol/PacketUtils.java
@@ -50,6 +50,9 @@ public class PacketUtils {
                     try (co.aikar.timings.Timing ignored = timing.startTiming()) { // Paper - timings
                         packet.handle(listener);
                     } catch (Exception exception) {
+                        if(exception instanceof me.LIMPIX31.paperutils.SuppressedThrowable  || (exception instanceof net.minecraft.ReportedException re && exception.getCause() instanceof me.LIMPIX31.paperutils.SuppressedThrowable)){
+                            return;
+                        }
                         net.minecraft.network.Connection networkmanager = listener.getConnection();
                         String playerIP = com.destroystokyo.paper.PaperConfig.logPlayerIpAddresses ? String.valueOf(networkmanager.getRemoteAddress()) : "<ip address withheld>"; // Paper
                         if (networkmanager.getPlayer() != null) {
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index c8d56947305c981a3268ce4ae3e975db350ceff2..20c3724b70cfa11f07766bb3e997767fa8e2d81b 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1588,7 +1588,14 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
 
             try {
                 worldserver.timings.doTick.startTiming(); // Spigot
-                worldserver.tick(shouldKeepTicking);
+                try {
+                    worldserver.tick(shouldKeepTicking);
+                } catch (ReportedException e) {
+                    if (!(e.getCause() instanceof me.LIMPIX31.paperutils.SuppressedThrowable)) throw e.getCause();
+                    MinecraftServer.LOGGER.warn("Prevented crash while ticking world: " + e.getCause());
+                } catch (me.LIMPIX31.paperutils.SuppressedThrowable e) {
+                    MinecraftServer.LOGGER.warn("Prevented crash while ticking world: " + e.getCause());
+                }
                 // Paper start
                 for (final io.papermc.paper.chunk.SingleThreadChunkRegionManager regionManager : worldserver.getChunkSource().chunkMap.regionManagers) {
                     regionManager.recalculateRegions();
diff --git a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
index a0e5e2daff21564a85c46ad469b79139cc26c1fd..dc495ade5d77aa721a5b5411bc2e7c3575613cae 100644
--- a/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/AbstractContainerMenu.java
@@ -617,8 +617,8 @@ public abstract class AbstractContainerMenu {
                                 if (itemstack1.getCount() > i2) {
                                     slot2.set(itemstack1.split(i2));
                                 } else {
-                                    playerinventory.setItem(button, ItemStack.EMPTY);
                                     slot2.set(itemstack1);
+                                    playerinventory.setItem(button, ItemStack.EMPTY);
                                 }
                             }
                         } else if (slot2.mayPickup(player) && slot2.mayPlace(itemstack1)) {
@@ -630,8 +630,8 @@ public abstract class AbstractContainerMenu {
                                     player.drop(itemstack, true);
                                 }
                             } else {
-                                playerinventory.setItem(button, itemstack);
                                 slot2.set(itemstack1);
+                                playerinventory.setItem(button, itemstack);
                                 slot2.onTake(player, itemstack);
                             }
                         }
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 160c0f37aa3aaf7598f852acf9bd444f79444c97..cf3d39693284ad780d526451bc8380f52e6370c9 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -769,10 +769,15 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
                 // CraftBukkit end
                 iblockdata.neighborChanged(this, pos, sourceBlock, neighborPos, false);
             // Spigot Start
-            } catch (StackOverflowError ex) {
-                Level.lastPhysicsProblem = new BlockPos(pos);
-                // Spigot End
             } catch (Throwable throwable) {
+                if (throwable instanceof StackOverflowError || throwable instanceof me.LIMPIX31.paperutils.SuppressedThrowable) {
+                    throw new me.LIMPIX31.paperutils.SuppressedThrowable("Update suppression");
+                } else {
+                    if (throwable instanceof StackOverflowError) {
+                        lastPhysicsProblem = new BlockPos(pos);
+                        return;
+                    }
+                }
                 CrashReport crashreport = CrashReport.forThrowable(throwable, "Exception while updating neighbours");
                 CrashReportCategory crashreportsystemdetails = crashreport.addCategory("Block being updated");
 

i dont quite understand how to apply the code on my server. can you please help me?

i dont quite understand how to apply the code on my server. can you please help me?

Follow this guide (it's in Russian).
https://gist.github.com/LIMPIX31/2dd7f6bc7cb79fc70f19033e41e07877