Implementation of the Jukebox BlockState

src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java

@@ -212,6 +212,8 @@ public class CraftBlock implements Block {
                 return new CraftCreatureSpawner(this);
             case NOTE_BLOCK:
                 return new CraftNoteBlock(this);
+            case JUKEBOX:
+                return new CraftJukebox(this);
             default:
                 return new CraftBlockState(this);
         }

src/main/java/org/bukkit/craftbukkit/block/CraftJukebox.java

@@ -0,0 +1,50 @@
+package org.bukkit.craftbukkit.block;
+
+import org.bukkit.Effect;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.Jukebox;
+import org.bukkit.craftbukkit.CraftWorld;
+
+import net.minecraft.server.BlockJukeBox;
+import net.minecraft.server.TileEntityRecordPlayer;
+
+public class CraftJukebox extends CraftBlockState implements Jukebox {
+    private final CraftWorld world;
+    private final TileEntityRecordPlayer jukebox;
+
+    public CraftJukebox(final Block block) {
+        super(block);
+
+        world = (CraftWorld) block.getWorld();
+        jukebox = (TileEntityRecordPlayer) world.getTileEntityAt(getX(), getY(), getZ());
+    }
+
+    public Material getPlaying() {
+        return Material.getMaterial(jukebox.a);
+    }
+
+    public void setPlaying(Material record) {
+        if (record == null) {
+            record = Material.AIR;
+        }
+        jukebox.a = record.getId();
+        jukebox.update();
+        if (record == Material.AIR) {
+            world.getHandle().setData(getX(), getY(), getZ(), 0);
+        } else {
+            world.getHandle().setData(getX(), getY(), getZ(), 1);
+        }
+        world.playEffect(getLocation(), Effect.RECORD_PLAY, record.getId());
+    }
+
+    public boolean isPlaying() {
+        return getRawData() == 1;
+    }
+
+    public boolean eject() {
+        boolean result = isPlaying();
+        ((BlockJukeBox)net.minecraft.server.Block.JUKEBOX).c_(world.getHandle(), getX(), getY(), getZ());
+        return result;
+    }
+}