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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 1 Mar 2016 23:52:34 -0600
Subject: [PATCH] Prevent tile entity and entity crashes


diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index fb78a91d1ab77f909823422c6d4e2ef7ed10c9c3..a022d009b72e366ed69d05087457b712970c0b84 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -728,11 +728,11 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
         try {
             tickConsumer.accept(entity);
         } catch (Throwable throwable) {
-            CrashReport crashreport = CrashReport.forThrowable(throwable, "Ticking entity");
-            CrashReportCategory crashreportsystemdetails = crashreport.addCategory("Entity being ticked");
-
-            entity.fillCrashReportCategory(crashreportsystemdetails);
-            throw new ReportedException(crashreport);
+            // Paper start - Prevent tile entity and entity crashes
+            final String msg = String.format("Entity threw exception at %s:%s,%s,%s", entity.level().getWorld().getName(), entity.getX(), entity.getY(), entity.getZ());
+            MinecraftServer.LOGGER.error(msg, throwable);
+            entity.discard();
+            // Paper end
         }
     }
 
diff --git a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
index b300d12e9e00519028b53aca9c3fb01f589eaa91..63acd109a79ed752a05df3d4f1b99309297c2055 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
@@ -213,7 +213,12 @@ public abstract class BlockEntity {
             return minecraftkey + " // " + this.getClass().getCanonicalName();
         });
         if (this.level != null) {
-            CrashReportCategory.populateBlockDetails(crashReportSection, this.level, this.worldPosition, this.getBlockState());
+            // Paper start - Prevent TileEntity and Entity crashes
+            BlockState block = this.getBlockState();
+            if (block != null) {
+                CrashReportCategory.populateBlockDetails(crashReportSection, this.level, this.worldPosition, block);
+            }
+            // Paper end
             CrashReportCategory.populateBlockDetails(crashReportSection, this.level, this.worldPosition, this.level.getBlockState(this.worldPosition));
         }
     }
diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
index 85b38592c87bbc071d3fc5de5db131c6626fe004..fde60133d2c5557cd8d4a4d2e3a16aa96974fcbb 100644
--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
@@ -1147,11 +1147,11 @@ public class LevelChunk extends ChunkAccess {
 
                         gameprofilerfiller.pop();
                     } catch (Throwable throwable) {
-                        CrashReport crashreport = CrashReport.forThrowable(throwable, "Ticking block entity");
-                        CrashReportCategory crashreportsystemdetails = crashreport.addCategory("Block entity being ticked");
-
-                        this.blockEntity.fillCrashReportCategory(crashreportsystemdetails);
-                        throw new ReportedException(crashreport);
+                        // Paper start - Prevent tile entity and entity crashes
+                        final String msg = String.format("BlockEntity threw exception at %s:%s,%s,%s", LevelChunk.this.getLevel().getWorld().getName(), this.getPos().getX(), this.getPos().getY(), this.getPos().getZ());
+                        net.minecraft.server.MinecraftServer.LOGGER.error(msg, throwable);
+                        LevelChunk.this.removeBlockEntity(this.getPos());
+                        // Paper end
                         // Spigot start
                     } finally {
                         this.blockEntity.tickTimer.stopTiming();