possible fix for block breaking bug

src/main/java/net/minecraft/server/ItemInWorldManager.java

@@ -112,7 +112,8 @@ public class ItemInWorldManager {
             server.getPluginManager().callEvent(event);
 
             if (event.isCancelled()) {
-                return true;
+                MinecraftServer.a.info("A plugin cancelled the block break event");
+                return false;
             }
         }
         // CraftBukkit end

src/main/java/net/minecraft/server/NetServerHandler.java

@@ -328,7 +328,7 @@ public class NetServerHandler extends NetHandler implements ICommandListener {
             if (packet14blockdig.e == 0) {
                 // CraftBukkit start
                 if (i1 > this.d.spawnProtection || flag) {
-                    if (blockId > 0) {
+//                    if (blockId > 0) {
                         BlockDamageEvent event;
                         // If the amount of damage that the player is going to do to the block
                         // is >= 1, then the block is going to break (eg, flowers, torches)
@@ -347,7 +347,10 @@ public class NetServerHandler extends NetHandler implements ICommandListener {
                         if (!event.isCancelled()) {
                             this.e.c.a(i, j, k);
                         }
+                        else {
+                            MinecraftServer.a.info("A plugin cancelled the block start break event");
                         }
+//                    }
                 }
             } else if (packet14blockdig.e == 2) {
                 // CraftBukkit start - Get last block that the player hit
@@ -357,31 +360,33 @@ public class NetServerHandler extends NetHandler implements ICommandListener {
                 server.getPluginManager().callEvent(event);
                 if (!event.isCancelled()) {
                     this.e.c.b(i, j, k);
-                }
-                // CraftBukkit end
-            } else if (packet14blockdig.e == 1) {
-                // CraftBukkit start
-                if (i1 > this.d.spawnProtection || flag) {
-                    BlockDamageEvent event;
-                    // If the amount of damage going to the block plus the current amount
-                    // of damage is greater than 1, the block is going to break.
-                    if (this.e.c.c + damage  >= 1.0F) {
-                        // if we are destroying either a redstone wire with a current greater than 0 or
-                        // a redstone torch that is on, then we should notify plugins that this block has
-                        // returned to a current value of 0 (since it will once the redstone is destroyed)
-                        if ((blockId == Block.REDSTONE_WIRE.id && block.getRawData() > 0) || blockId == Block.REDSTONE_TORCH_ON.id) {
-                            server.getPluginManager().callEvent( new BlockRedstoneEvent(block, (blockId == Block.REDSTONE_WIRE.id ? block.getRawData() : 15), 0));
-                        }
-                        event = new BlockDamageEvent(Type.BLOCK_DAMAGED, block, BlockDamageLevel.BROKEN, player);
                 } else {
-                        event = new BlockDamageEvent(Type.BLOCK_DAMAGED, block, BlockDamageLevel.DIGGING, player);
+                    MinecraftServer.a.info("A plugin cancelled the block stop break event");
-                    }
-                    server.getPluginManager().callEvent(event);
-                    if (event.isCancelled()) {
-                        this.e.c.c = 0; // Reset the amount of damage if stopping break.
-                    }
                 }
                 // CraftBukkit end
+//            } else if (packet14blockdig.e == 1) {
+//                // CraftBukkit start
+//                if (i1 > this.d.spawnProtection || flag) {
+//                    BlockDamageEvent event;
+//                    // If the amount of damage going to the block plus the current amount
+//                    // of damage is greater than 1, the block is going to break.
+//                    if (this.e.c.c + damage  >= 1.0F) {
+//                        // if we are destroying either a redstone wire with a current greater than 0 or
+//                        // a redstone torch that is on, then we should notify plugins that this block has
+//                        // returned to a current value of 0 (since it will once the redstone is destroyed)
+//                        if ((blockId == Block.REDSTONE_WIRE.id && block.getRawData() > 0) || blockId == Block.REDSTONE_TORCH_ON.id) {
+//                            server.getPluginManager().callEvent( new BlockRedstoneEvent(block, (blockId == Block.REDSTONE_WIRE.id ? block.getRawData() : 15), 0));
+//                        }
+//                        event = new BlockDamageEvent(Type.BLOCK_DAMAGED, block, BlockDamageLevel.BROKEN, player);
+//                    } else {
+//                        event = new BlockDamageEvent(Type.BLOCK_DAMAGED, block, BlockDamageLevel.DIGGING, player);
+//                    }
+//                    server.getPluginManager().callEvent(event);
+//                    if (event.isCancelled()) {
+//                        this.e.c.c = 0; // Reset the amount of damage if stopping break.
+//                    }
+//                }
+//                // CraftBukkit end
             } else if (packet14blockdig.e == 3) {
                 double d4 = this.e.locX - ((double) i + 0.5D);
                 double d5 = this.e.locY - ((double) j + 0.5D);