Paper/Spigot-Server-Patches/0031-Prevent-tile-entity-and-entity-crashes.patch

From 444300b298e4126354a42bd37a086cf98da99bb0 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 8 Mar 2015 04:37:23 -0500
Subject: [PATCH] Prevent tile entity and entity crashes


diff --git a/src/main/java/net/minecraft/server/TileEntity.java b/src/main/java/net/minecraft/server/TileEntity.java
index c268a40..3fc6450 100644
--- a/src/main/java/net/minecraft/server/TileEntity.java
+++ b/src/main/java/net/minecraft/server/TileEntity.java
@@ -157,7 +157,12 @@ public abstract class TileEntity {
             }
         });
         if (this.world != null) {
-            CrashReportSystemDetails.a(crashreportsystemdetails, this.position, this.w(), this.u());
+            // PaperSpigot start - Prevent tile entity and entity crashes
+            Block block = this.w();
+            if (block != null) {
+                CrashReportSystemDetails.a(crashreportsystemdetails, this.position, this.w(), this.u());
+            }
+            // PaperSpigot end
             crashreportsystemdetails.a("Actual block type", new Callable() {
                 public String a() throws Exception {
                     int i = Block.getId(TileEntity.this.world.getType(TileEntity.this.position).getBlock());
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 6226a6e..a899ee2 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -1442,10 +1442,13 @@ public abstract class World implements IBlockAccess {
                     this.g(entity);
                     SpigotTimings.tickEntityTimer.stopTiming(); // Spigot
                 } catch (Throwable throwable1) {
-                    crashreport = CrashReport.a(throwable1, "Ticking entity");
-                    crashreportsystemdetails = crashreport.a("Entity being ticked");
-                    entity.appendEntityCrashDetails(crashreportsystemdetails);
-                    throw new ReportedException(crashreport);
+                    // PaperSpigot start - Prevent tile entity and entity crashes
+                    SpigotTimings.tickEntityTimer.stopTiming();
+                    System.err.println("Entity threw exception at " + entity.world.getWorld().getName() + ":" + entity.locX + "," + entity.locY + "," + entity.locZ);
+                    throwable1.printStackTrace();
+                    entity.dead = true;
+                    continue;
+                    // PaperSpigot end
                 }
             }
 
@@ -1504,11 +1507,14 @@ public abstract class World implements IBlockAccess {
                         tileentity.tickTimer.startTiming(); // Spigot
                         ((IUpdatePlayerListBox) tileentity).c();
                     } catch (Throwable throwable2) {
-                        CrashReport crashreport1 = CrashReport.a(throwable2, "Ticking block entity");
-                        CrashReportSystemDetails crashreportsystemdetails1 = crashreport1.a("Block entity being ticked");
-
-                        tileentity.a(crashreportsystemdetails1);
-                        throw new ReportedException(crashreport1);
+                        // PaperSpigot start - Prevent tile entity and entity crashes
+                        tileentity.tickTimer.stopTiming();
+                        System.err.println("TileEntity threw exception at " + tileentity.world.getWorld().getName() + ":" + tileentity.position.getX() + "," + tileentity.position.getY() + "," + tileentity.position.getZ());
+                        throwable2.printStackTrace();
+                        tilesThisCycle--;
+                        this.tileEntityList.remove(tileTickPosition--);
+                        continue;
+                        // PaperSpigot end
                     }
                     // Spigot start
                     finally {
-- 
2.5.2