Removed onBlockSent, added onLeavesDecay

src/main/java/org/bukkit/event/Event.java

@@ -217,9 +217,9 @@ public abstract class Event {
         BLOCK_PLACED (Category.BLOCK),
 
         /**
-         * Called when a specific block is being sent to a player
+         * Called when leaves are decaying naturally
          */
-        BLOCK_SENT (Category.BLOCK),
+        LEAVES_DECAY (Category.BLOCK),
 
         /**
          * Called when a liquid attempts to flow into a block which already

src/main/java/org/bukkit/event/block/BlockListener.java

@@ -78,4 +78,12 @@ public class BlockListener implements Listener {
     public void onBlockRightClicked(BlockRightClickedEvent event) {
     }
 
+    /**
+     * Called when leaves are decaying naturally
+     *
+     * @param event Relevant event details
+     */
+    public void onLeavesDecay(LeavesDecayEvent event) {
+    }
+
 }

src/main/java/org/bukkit/event/block/LeavesDecayEvent.java

@@ -0,0 +1,36 @@
+
+package org.bukkit.event.block;
+
+import org.bukkit.Block;
+import org.bukkit.event.Cancellable;
+
+/**
+ * Called on leaves decaying
+ */
+public class LeavesDecayEvent extends BlockEvent implements Cancellable {
+    private boolean cancel = false;
+
+    public LeavesDecayEvent(final Type type, final Block block) {
+        super(type, block);
+    }
+
+    /**
+     * Gets the cancellation state of this event. A cancelled event will not
+     * be executed in the server, but will still pass to other plugins
+     *
+     * @return true if this event is cancelled
+     */
+    public boolean isCancelled() {
+        return cancel;
+    }
+
+    /**
+     * Sets the cancellation state of this event. A cancelled event will not
+     * be executed in the server, but will still pass to other plugins
+     *
+     * @param cancel true if you wish to cancel this event
+     */
+    public void setCancelled(boolean cancel) {
+        this.cancel = cancel;
+    }
+}

src/main/java/org/bukkit/plugin/java/JavaPluginLoader.java

@@ -127,6 +127,9 @@ public final class JavaPluginLoader implements PluginLoader {
                 case BLOCK_FLOW:
                     trueListener.onBlockFlow((BlockFromToEvent)event);
                     break;
+                case LEAVES_DECAY:
+                    trueListener.onLeavesDecay((LeavesDecayEvent)event);
+                    break;
             }
         } else if(listener instanceof ServerListener) {
             ServerListener trueListener = (ServerListener)listener;