+ Added void protection.

src/main/java/com/zandor300/torchlight/TorchLight.java

@@ -87,14 +87,22 @@ public class TorchLight extends JavaPlugin {
 							state.getLocation().getBlock().setData(state.getData().getData());
 						}
 						Location location = new Location(player.getWorld(), player.getLocation().getX(), player.getLocation().getY() - 1, player.getLocation().getZ());
+						boolean theVoid = false;
 						while (location.getBlock().getType().equals(Material.AIR) ||
 								location.getBlock().getType().equals(Material.WATER) ||
 								location.getBlock().getType().equals(Material.STATIONARY_WATER) ||
 								location.getBlock().getType().equals(Material.LAVA) ||
-								location.getBlock().getType().equals(Material.STATIONARY_LAVA))
+								location.getBlock().getType().equals(Material.STATIONARY_LAVA)) {
 							location.add(0, -1, 0);
-						playerState.put(player.getName(), location.getBlock().getState());
-						location.getBlock().setType(Material.GLOWSTONE);
+							if(location.getY() <= 1) {
+								theVoid = true;
+								break;
+							}
+						}
+						if(!theVoid) {
+							playerState.put(player.getName(), location.getBlock().getState());
+							location.getBlock().setType(Material.GLOWSTONE);
+						}
 					}
 				}
 			}