Minor cleaning of code

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

@@ -249,8 +249,9 @@ public class BlockButton extends Block {
                 CraftBlock block = (CraftBlock) craftWorld.getBlockAt(i, j, k);
                 BlockRedstoneEvent eventRedstone = new BlockRedstoneEvent(block, 1, 0);
                 server.getPluginManager().callEvent(eventRedstone);
-                if(eventRedstone.getNewCurrent() > 0) return;
+                if (eventRedstone.getNewCurrent() > 0) return;
                 // Craftbukkit end
+
                 world.c(i, j, k, l & 7);
                 world.h(i, j, k, this.id);
                 int i1 = l & 7;

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

@@ -19,8 +19,7 @@ import org.bukkit.event.world.ChunkLoadEvent;
 import org.bukkit.event.world.ChunkUnloadEvent;
 // CraftBukkit end
 
-public class ChunkProviderServer implements IChunkProvider
+public class ChunkProviderServer implements IChunkProvider {
-{
     public LongHashset a = new LongHashset(); // CraftBukkit
     private Chunk b;
     private IChunkProvider c;
@@ -203,9 +202,8 @@ public class ChunkProviderServer implements IChunkProvider
             while (!this.a.isEmpty()) {
                 long chunkcoordinates = this.a.popFirst();
                 Chunk chunk = e.get(chunkcoordinates);
-                if (chunk == null) {
+                if (chunk == null) continue;
-                    continue;
+
-                }
                 ChunkUnloadEvent cue = new ChunkUnloadEvent(Type.CHUNK_UNLOADED, chunk.bukkitChunk);
                 server.getPluginManager().callEvent(cue);
                 if (!cue.isCancelled()) {

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

@@ -29,9 +29,8 @@ public class Explosion {
     public Entity e;
     public float f;
     public Set g = new HashSet();
-    // Craftbukkit start
+
-    public boolean wasCanceled = false;
+    public boolean wasCanceled = false; // Craftbukkit
-    // Craftbukkit end
 
     public Explosion(World world, Entity entity, double d0, double d1, double d2, float f) {
         this.i = world;
@@ -240,7 +239,7 @@ public class Explosion {
             }
 
             if (i1 > 0) {
-                Block.byId[i1].a(this.i, j, k, l, this.i.getData(j, k, l), event.getYield()); //Modified by Craftbukkit
+                Block.byId[i1].a(this.i, j, k, l, this.i.getData(j, k, l), event.getYield()); // Craftbukkit
                 this.i.e(j, k, l, 0);
                 Block.byId[i1].a_(this.i, j, k, l);
             }