Remove use of deprecated API

pom.xml

@@ -26,6 +26,18 @@
 
 	<build>
 		<finalName>${project.artifactId}</finalName>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.8.0</version>
+        <configuration>
+          <compilerArgs>
+            <arg>-Xlint:all</arg>
+          </compilerArgs>
+        </configuration>
+      </plugin>
+    </plugins>
 	</build>
 </project>
 

src/main/java/pw/kaboom/extras/Commands.java

@@ -77,7 +77,7 @@ class CommandDestroyEntities implements CommandExecutor {
 class CommandEnchantAll implements CommandExecutor {
 	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
 		Player player = (Player) sender;
-		ItemStack item = player.getItemInHand();
+		ItemStack item = player.getInventory().getItemInMainHand();
 
 		if (item.getType() == Material.AIR) {
 			player.sendMessage("Please hold an item in your hand to enchant it");

src/main/java/pw/kaboom/extras/Events.java

@@ -119,7 +119,7 @@ class TickAsync extends BukkitRunnable {
 				world.setAutoSave(true);
 			}
 
-			try {
+			/*try {
 				for (final Chunk chunk : world.getLoadedChunks()) {
 					try {
 						chunk.getTileEntities();
@@ -132,7 +132,7 @@ class TickAsync extends BukkitRunnable {
 					}
 				}
 			} catch (Exception e) {
-			}
+			}*/
 
 			try {
 				for (LivingEntity mob : world.getLivingEntities()) {
@@ -573,7 +573,7 @@ class Events implements Listener {
 	@EventHandler
 	void onPlayerLogin(PlayerLoginEvent event) {
 		if (!(event.getHostname().startsWith("play.kaboom.pw") &&
-		event.getHostname().endsWith(":64518"))) {
+		event.getHostname().endsWith(":49450"))) {
 			event.disallow(Result.KICK_OTHER, "You connected to the server using an outdated server address/IP.\nPlease use the following address/IP:\n\nkaboom.pw");
 		} else {
 			final Player player = event.getPlayer();