diff --git a/src/pocketmine/PocketMine.php b/src/pocketmine/PocketMine.php
index 7c2857091..6925b1efa 100644
--- a/src/pocketmine/PocketMine.php
+++ b/src/pocketmine/PocketMine.php
@@ -143,9 +143,8 @@ namespace pocketmine {
 
 	//Logger has a dependency on timezone, so we'll set it to UTC until we can get the actual timezone.
 	date_default_timezone_set("UTC");
-	var_dump("LOAD LOGGER");
+
 	$logger = new MainLogger(\pocketmine\DATA . "server.log", \pocketmine\ANSI);
-	var_dump("LOGGER LOADED");
 
 	if(!ini_get("date.timezone")){
 		if(($timezone = detect_system_timezone()) and date_default_timezone_set($timezone)){
@@ -320,7 +319,11 @@ namespace pocketmine {
 			case "mac":
 			case "linux":
 			default:
-				exec("kill -9 " . ((int) $pid) . " > /dev/null 2>&1");
+				if(function_exists("posix_kill")){
+					posix_kill($pid, SIGKILL);
+				}else{
+					exec("kill -9 " . ((int)$pid) . " > /dev/null 2>&1");
+				}
 		}
 	}
 
@@ -394,8 +397,8 @@ namespace pocketmine {
 	if(substr_count($pthreads_version, ".") < 2){
 		$pthreads_version = "0.$pthreads_version";
 	}
-	if(version_compare($pthreads_version, "2.0.9") < 0){
-		$logger->critical("pthreads >= 2.0.9 is required, while you have $pthreads_version.");
+	if(version_compare($pthreads_version, "3.0.0") < 0){
+		$logger->critical("pthreads >= 3.0.0 is required, while you have $pthreads_version.");
 		++$errors;
 	}
 
@@ -418,13 +421,13 @@ namespace pocketmine {
 		++$errors;
 	}
 
-	if(!extension_loaded("sqlite3")){
-		$logger->critical("Unable to find the SQLite3 extension.");
+	if(!extension_loaded("yaml")){
+		$logger->critical("Unable to find the YAML extension.");
 		++$errors;
 	}
 
-	if(!extension_loaded("yaml")){
-		$logger->critical("Unable to find the YAML extension.");
+	if(!extension_loaded("sqlite3")){
+		$logger->critical("Unable to find the SQLite3 extension.");
 		++$errors;
 	}
 
diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index 13d58a62b..3f1cf0c34 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -132,6 +132,9 @@ class Server{
 	/** @var Server */
 	private static $instance = null;
 
+	/** @var \Threaded */
+	private static $sleeper = null;
+
 	/** @var BanList */
 	private $banByName = null;
 
@@ -754,7 +757,7 @@ class Server{
 				$nbt->readCompressed(file_get_contents($path . "$name.dat"));
 
 				return $nbt->getData();
-			}catch(\Exception $e){ //zlib decode error / corrupt data
+			}catch(\Throwable $e){ //zlib decode error / corrupt data
 				rename($path . "$name.dat", $path . "$name.dat.bak");
 				$this->logger->notice($this->getLanguage()->translateString("pocketmine.data.playerCorrupted", [$name]));
 			}
@@ -871,7 +874,7 @@ class Server{
 			}else{
 				file_put_contents($this->getDataPath() . "players/" . strtolower($name) . ".dat", $nbt->writeCompressed());
 			}
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			$this->logger->critical($this->getLanguage()->translateString("pocketmine.data.saveError", [$name, $e->getMessage()]));
 			if(\pocketmine\DEBUG > 1 and $this->logger instanceof MainLogger){
 				$this->logger->logException($e);
@@ -1080,7 +1083,7 @@ class Server{
 
 		try{
 			$level = new Level($this, $name, $path, $provider);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 
 			$this->logger->error($this->getLanguage()->translateString("pocketmine.level.loadError", [$name, $e->getMessage()]));
 			if($this->logger instanceof MainLogger){
@@ -1140,7 +1143,7 @@ class Server{
 			$level->initLevel();
 
 			$level->setTickRate($this->baseTickRate);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			$this->logger->error($this->getLanguage()->translateString("pocketmine.level.generateError", [$name, $e->getMessage()]));
 			if($this->logger instanceof MainLogger){
 				$this->logger->logException($e);
@@ -1436,10 +1439,18 @@ class Server{
 	/**
 	 * @return Server
 	 */
-	public static function getInstance(){
+	public static function getInstance() : Server{
 		return self::$instance;
 	}
 
+	public static function microSleep(int $microseconds){
+		Server::$sleeper->synchronized(function(int $ms){
+			var_dump("Sleeping $ms");
+			Server::$sleeper->wait($ms);
+			var_dump("Finished sleep $ms");
+		}, $microseconds);
+	}
+
 	/**
 	 * @param \ClassLoader    $autoloader
 	 * @param \ThreadedLogger $logger
@@ -1449,6 +1460,7 @@ class Server{
 	 */
 	public function __construct(\ClassLoader $autoloader, \ThreadedLogger $logger, $filePath, $dataPath, $pluginPath){
 		self::$instance = $this;
+		self::$sleeper = \ThreadedFactory::create();
 
 		$this->autoloader = $autoloader;
 		$this->logger = $logger;
@@ -1627,7 +1639,6 @@ class Server{
 		register_shutdown_function([$this, "crashDump"]);
 
 		$this->queryRegenerateTask = new QueryRegenerateEvent($this, 5);
-
 		$this->network->registerInterface(new RakLibInterface($this));
 
 		$this->pluginManager->loadPlugins($this->pluginPath);
@@ -1986,11 +1997,6 @@ class Server{
 	 * Shutdowns the server correctly
 	 */
 	public function shutdown(){
-		if($this->isRunning){
-			$killer = new ServerKiller(90);
-			$killer->start();
-			$killer->detach();
-		}
 		$this->isRunning = false;
 	}
 
@@ -2040,7 +2046,7 @@ class Server{
 
 			$this->getLogger()->debug("Closing console");
 			$this->console->shutdown();
-			$this->console->detach();
+			$this->console->kill();
 
 			$this->getLogger()->debug("Stopping network interfaces");
 			foreach($this->network->getInterfaces() as $interface){
@@ -2051,8 +2057,9 @@ class Server{
 			$this->memoryManager->doObjectCleanup();
 
 			gc_collect_cycles();
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			$this->logger->emergency("Crashed while crashing, killing process");
+			$this->logger->emergency(get_class($e) . ": ". $e->getMessage());
 			@kill(getmypid());
 		}
 
@@ -2110,7 +2117,7 @@ class Server{
 		}
 	}
 
-	public function exceptionHandler(\Exception $e, $trace = null){
+	public function exceptionHandler(\Throwable $e, $trace = null){
 		if($e === null){
 			return;
 		}
@@ -2165,7 +2172,7 @@ class Server{
 		$this->logger->emergency($this->getLanguage()->translateString("pocketmine.crash.create"));
 		try{
 			$dump = new CrashDump($this);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			$this->logger->critical($this->getLanguage()->translateString("pocketmine.crash.error", $e->getMessage()));
 			return;
 		}
@@ -2225,7 +2232,7 @@ class Server{
 			if($next > microtime(true)){
 				try{
 					time_sleep_until($next);
-				}catch(\Exception $e){
+				}catch(\Throwable $e){
 					//Sometimes $next is less than the current time. High load?
 				}
 			}
@@ -2344,7 +2351,7 @@ class Server{
 						$level->tickRateCounter = $level->getTickRate();
 					}
 				}
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				$this->logger->critical($this->getLanguage()->translateString("pocketmine.level.tickError", [$level->getName(), $e->getMessage()]));
 				if(\pocketmine\DEBUG > 1 and $this->logger instanceof MainLogger){
 					$this->logger->logException($e);
@@ -2439,7 +2446,7 @@ class Server{
 			if(strlen($payload) > 2 and substr($payload, 0, 2) === "\xfe\xfd" and $this->queryHandler instanceof QueryHandler){
 				$this->queryHandler->handle($address, $port, $payload);
 			}
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			if(\pocketmine\DEBUG > 1){
 				if($this->logger instanceof MainLogger){
 					$this->logger->logException($e);
@@ -2497,7 +2504,7 @@ class Server{
 					if($this->queryHandler !== null){
 						$this->queryHandler->regenerateInfo();
 					}
-				}catch(\Exception $e){
+				}catch(\Throwable $e){
 					if($this->logger instanceof MainLogger){
 						$this->logger->logException($e);
 					}
diff --git a/src/pocketmine/Thread.php b/src/pocketmine/Thread.php
index ce05d37b2..d7a33f757 100644
--- a/src/pocketmine/Thread.php
+++ b/src/pocketmine/Thread.php
@@ -51,7 +51,7 @@ abstract class Thread extends \Thread{
 		}
 	}
 
-	public function start($options = PTHREADS_INHERIT_ALL){
+	public function start(int $options = PTHREADS_INHERIT_ALL){
 		ThreadManager::getInstance()->add($this);
 
 		if(!$this->isRunning() and !$this->isJoined() and !$this->isTerminated()){
@@ -70,16 +70,14 @@ abstract class Thread extends \Thread{
 	public function quit(){
 		if($this->isRunning()){
 			$this->kill();
-			$this->detach();
 		}elseif(!$this->isJoined()){
 			if(!$this->isTerminated()){
 				$this->join();
 			}else{
 				$this->kill();
-				$this->detach();
 			}
 		}else{
-			$this->detach();
+			$this->kill();
 		}
 
 		ThreadManager::getInstance()->remove($this);
diff --git a/src/pocketmine/Worker.php b/src/pocketmine/Worker.php
index 2b54171ec..547e50963 100644
--- a/src/pocketmine/Worker.php
+++ b/src/pocketmine/Worker.php
@@ -51,7 +51,7 @@ abstract class Worker extends \Worker{
 		}
 	}
 
-	public function start($options = PTHREADS_INHERIT_ALL){
+	public function start(int $options = PTHREADS_INHERIT_ALL){
 		ThreadManager::getInstance()->add($this);
 
 		if(!$this->isRunning() and !$this->isJoined() and !$this->isTerminated()){
@@ -71,16 +71,14 @@ abstract class Worker extends \Worker{
 		if($this->isRunning()){
 			$this->unstack();
 			$this->kill();
-			$this->detach();
 		}elseif(!$this->isJoined()){
 			if(!$this->isTerminated()){
 				$this->join();
 			}else{
 				$this->kill();
-				$this->detach();
 			}
 		}else{
-			$this->detach();
+			$this->kill();
 		}
 
 		ThreadManager::getInstance()->remove($this);
diff --git a/src/pocketmine/command/CommandReader.php b/src/pocketmine/command/CommandReader.php
index 54f25cc23..c44b89c73 100644
--- a/src/pocketmine/command/CommandReader.php
+++ b/src/pocketmine/command/CommandReader.php
@@ -86,7 +86,9 @@ class CommandReader extends Thread{
 			if(($line = $this->readLine()) !== ""){
 				$this->buffer[] = preg_replace("#\\x1b\\x5b([^\\x1b]*\\x7e|[\\x40-\\x50])#", "", $line);
 			}elseif(!$this->shutdown and (microtime(true) - $lastLine) <= 0.1){ //Non blocking! Sleep to save CPU
-				usleep(10000);
+				$this->synchronized(function(){
+					$this->wait(10000);
+				});
 			}
 
 			$lastLine = microtime(true);
diff --git a/src/pocketmine/command/FormattedCommandAlias.php b/src/pocketmine/command/FormattedCommandAlias.php
index 842ab59f6..dbbe23d77 100644
--- a/src/pocketmine/command/FormattedCommandAlias.php
+++ b/src/pocketmine/command/FormattedCommandAlias.php
@@ -46,7 +46,7 @@ class FormattedCommandAlias extends Command{
 		foreach($this->formatStrings as $formatString){
 			try{
 				$commands[] = $this->buildCommand($formatString, $args);
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				if($e instanceof \InvalidArgumentException){
 					$sender->sendMessage(TextFormat::RED . $e->getMessage());
 				}else{
diff --git a/src/pocketmine/command/SimpleCommandMap.php b/src/pocketmine/command/SimpleCommandMap.php
index 243354131..0e17b80fc 100644
--- a/src/pocketmine/command/SimpleCommandMap.php
+++ b/src/pocketmine/command/SimpleCommandMap.php
@@ -193,7 +193,7 @@ class SimpleCommandMap implements CommandMap{
 		$target->timings->startTiming();
 		try{
 			$target->execute($sender, $sentCommandLabel, $args);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			$sender->sendMessage(new TranslationContainer(TextFormat::RED . "%commands.generic.exception"));
 			$this->server->getLogger()->critical($this->server->getLanguage()->translateString("pocketmine.command.exception", [$commandLine, (string) $target, $e->getMessage()]));
 			$logger = $sender->getServer()->getLogger();
diff --git a/src/pocketmine/command/defaults/GiveCommand.php b/src/pocketmine/command/defaults/GiveCommand.php
index 3c7578d5e..b01d7edc5 100644
--- a/src/pocketmine/command/defaults/GiveCommand.php
+++ b/src/pocketmine/command/defaults/GiveCommand.php
@@ -66,7 +66,7 @@ class GiveCommand extends VanillaCommand{
 			$data = implode(" ", array_slice($args, 3));
 			try{
 				$tags = NBT::parseJSON($data);
-			}catch (\Exception $ex){
+			}catch (\Throwable $ex){
 				$exception = $ex;
 			}
 
diff --git a/src/pocketmine/item/Item.php b/src/pocketmine/item/Item.php
index cb73fb81f..9defb5af3 100644
--- a/src/pocketmine/item/Item.php
+++ b/src/pocketmine/item/Item.php
@@ -42,13 +42,10 @@ use pocketmine\nbt\NBT;
 
 class Item{
 
+	/** @var NBT */
 	private static $cachedParser = null;
 
-	/**
-	 * @param $tag
-	 * @return CompoundTag
-	 */
-	private static function parseCompoundTag($tag){
+	private static function parseCompoundTag(string $tag) : CompoundTag{
 		if(self::$cachedParser === null){
 			self::$cachedParser = new NBT(NBT::LITTLE_ENDIAN);
 		}
@@ -57,11 +54,7 @@ class Item{
 		return self::$cachedParser->getData();
 	}
 
-	/**
-	 * @param CompoundTag $tag
-	 * @return string
-	 */
-	private static function writeCompoundTag(CompoundTag $tag){
+	private static function writeCompoundTag(CompoundTag $tag) : string{
 		if(self::$cachedParser === null){
 			self::$cachedParser = new NBT(NBT::LITTLE_ENDIAN);
 		}
@@ -850,7 +843,7 @@ class Item{
 		Item::$creative = [];
 	}
 
-	public static function getCreativeItems(){
+	public static function getCreativeItems() : array{
 		return Item::$creative;
 	}
 
@@ -865,7 +858,7 @@ class Item{
 		}
 	}
 
-	public static function isCreativeItem(Item $item){
+	public static function isCreativeItem(Item $item) : bool{
 		foreach(Item::$creative as $i => $d){
 			if($item->equals($d, !$item->isTool())){
 				return true;
@@ -879,15 +872,11 @@ class Item{
 	 * @param $index
 	 * @return Item
 	 */
-	public static function getCreativeItem($index){
+	public static function getCreativeItem(int $index){
 		return isset(Item::$creative[$index]) ? Item::$creative[$index] : null;
 	}
 
-	/**
-	 * @param Item $item
-	 * @return int
-	 */
-	public static function getCreativeItemIndex(Item $item){
+	public static function getCreativeItemIndex(Item $item) : int{
 		foreach(Item::$creative as $i => $d){
 			if($item->equals($d, !$item->isTool())){
 				return $i;
@@ -897,7 +886,7 @@ class Item{
 		return -1;
 	}
 
-	public static function get($id, $meta = 0, $count = 1, $tags = ""){
+	public static function get(int $id, $meta = 0, int $count = 1, $tags = "") : Item{
 		try{
 			$class = self::$list[$id];
 			if($class === null){
@@ -912,7 +901,12 @@ class Item{
 		}
 	}
 
-	public static function fromString($str, $multiple = false){
+	/**
+	 * @param string $str
+	 * @param bool $multiple
+	 * @return Item[]|Item
+	 */
+	public static function fromString(string $str, bool $multiple = false){
 		if($multiple === true){
 			$blocks = [];
 			foreach(explode(",", $str) as $b){
@@ -941,10 +935,10 @@ class Item{
 		}
 	}
 
-	public function __construct($id, $meta = 0, $count = 1, $name = "Unknown"){
+	public function __construct(int $id, $meta = 0, int $count = 1, string $name = "Unknown"){
 		$this->id = $id & 0xffff;
 		$this->meta = $meta !== null ? $meta & 0xffff : null;
-		$this->count = (int) $count;
+		$this->count = $count;
 		$this->name = $name;
 		if(!isset($this->block) and $this->id <= 0xff and isset(Block::$list[$this->id])){
 			$this->block = Block::get($this->id, $this->meta);
@@ -970,11 +964,11 @@ class Item{
 		return $this->tags;
 	}
 	
-	public function hasCompoundTag(){
+	public function hasCompoundTag() : bool{
 		return $this->tags !== "" and $this->tags !== null;
 	}
 
-	public function hasCustomBlockData(){
+	public function hasCustomBlockData() : bool{
 		if(!$this->hasCompoundTag()){
 			return false;
 		}
@@ -1030,7 +1024,7 @@ class Item{
 		return null;
 	}
 
-	public function hasEnchantments(){
+	public function hasEnchantments() : bool{
 		if(!$this->hasCompoundTag()){
 			return false;
 		}
@@ -1050,7 +1044,7 @@ class Item{
 	 * @param $id
 	 * @return Enchantment|null
 	 */
-	public function getEnchantment($id){
+	public function getEnchantment(int $id){
 		if(!$this->hasEnchantments()){
 			return null;
 		}
@@ -1107,7 +1101,7 @@ class Item{
 	/**
 	 * @return Enchantment[]
 	 */
-	public function getEnchantments(){
+	public function getEnchantments() : array{
 		if(!$this->hasEnchantments()){
 			return [];
 		}
@@ -1123,7 +1117,7 @@ class Item{
 		return $enchantments;
 	}
 
-	public function hasCustomName(){
+	public function hasCustomName() : bool{
 		if(!$this->hasCompoundTag()){
 			return false;
 		}
@@ -1139,7 +1133,7 @@ class Item{
 		return false;
 	}
 
-	public function getCustomName(){
+	public function getCustomName() : string{
 		if(!$this->hasCompoundTag()){
 			return "";
 		}
@@ -1155,8 +1149,8 @@ class Item{
 		return "";
 	}
 
-	public function setCustomName($name){
-		if((string) $name === ""){
+	public function setCustomName(string $name){
+		if($name === ""){
 			$this->clearCustomName();
 		}
 
@@ -1228,23 +1222,23 @@ class Item{
 		return $this->setCompoundTag("");
 	}
 
-	public function getCount(){
+	public function getCount() : int{
 		return $this->count;
 	}
 
-	public function setCount($count){
-		$this->count = (int) $count;
+	public function setCount(int $count){
+		$this->count = $count;
 	}
 
-	final public function getName(){
+	final public function getName() : string{
 		return $this->hasCustomName() ? $this->getCustomName() : $this->name;
 	}
 
-	final public function canBePlaced(){
+	final public function canBePlaced() : bool{
 		return $this->block !== null and $this->block->canBePlaced();
 	}
 
-	public function getBlock(){
+	public function getBlock() : Block{
 		if($this->block instanceof Block){
 			return clone $this->block;
 		}else{
@@ -1252,7 +1246,7 @@ class Item{
 		}
 	}
 
-	final public function getId(){
+	final public function getId() : int{
 		return $this->id;
 	}
 
@@ -1326,7 +1320,7 @@ class Item{
 		return false;
 	}
 
-	final public function __toString(){
+	final public function __toString() : string{
 		return "Item " . $this->name . " (" . $this->id . ":" . ($this->meta === null ? "?" : $this->meta) . ")x" . $this->count . ($this->hasCompoundTag() ? " tags:0x".bin2hex($this->getCompoundTag()) : "");
 	}
 
@@ -1338,11 +1332,11 @@ class Item{
 		return false;
 	}
 
-	public final function equals(Item $item, $checkDamage = true, $checkCompound = true){
+	public final function equals(Item $item, bool $checkDamage = true, bool $checkCompound = true) : bool{
 		return $this->id === $item->getId() and ($checkDamage === false or $this->getDamage() === $item->getDamage()) and ($checkCompound === false or $this->getCompoundTag() === $item->getCompoundTag());
 	}
 
-	public final function deepEquals(Item $item, $checkDamage = true, $checkCompound = true){
+	public final function deepEquals(Item $item, bool $checkDamage = true, bool $checkCompound = true) : bool{
 		if($item->equals($item, $checkDamage, $checkCompound)){
 			return true;
 		}elseif($item->hasCompoundTag() or $this->hasCompoundTag()){
diff --git a/src/pocketmine/item/ItemBlock.php b/src/pocketmine/item/ItemBlock.php
index fcbc18ea5..e7e827512 100644
--- a/src/pocketmine/item/ItemBlock.php
+++ b/src/pocketmine/item/ItemBlock.php
@@ -27,7 +27,7 @@ use pocketmine\block\Block;
  * Class used for Items that can be Blocks
  */
 class ItemBlock extends Item{
-	public function __construct(Block $block, $meta = 0, $count = 1){
+	public function __construct(Block $block, $meta = 0, int $count = 1){
 		$this->block = $block;
 		parent::__construct($block->getId(), $block->getDamage(), $count, $block->getName());
 	}
@@ -41,7 +41,7 @@ class ItemBlock extends Item{
 		$this->block = clone $this->block;
 	}
 
-	public function getBlock(){
+	public function getBlock() : Block{
 		return $this->block;
 	}
 
diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index f6afcdfd0..465e8a313 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -2607,7 +2607,7 @@ class Level implements ChunkManager, Metadatable{
 				}
 			}
 			$this->provider->unloadChunk($x, $z, $safe);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			$logger = $this->server->getLogger();
 			$logger->error($this->server->getLanguage()->translateString("pocketmine.level.chunkUnloadError", [$e->getMessage()]));
 			if($logger instanceof MainLogger){
diff --git a/src/pocketmine/level/format/anvil/Chunk.php b/src/pocketmine/level/format/anvil/Chunk.php
index d4ebd564a..f7db19a17 100644
--- a/src/pocketmine/level/format/anvil/Chunk.php
+++ b/src/pocketmine/level/format/anvil/Chunk.php
@@ -180,7 +180,7 @@ class Chunk extends BaseChunk{
 			}
 
 			return new Chunk($provider instanceof LevelProvider ? $provider : Anvil::class, $chunk->Level);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return null;
 		}
 	}
@@ -203,7 +203,7 @@ class Chunk extends BaseChunk{
 			}
 
 			return new Chunk($provider instanceof LevelProvider ? $provider : Anvil::class, $chunk->Level);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return null;
 		}
 	}
@@ -361,7 +361,7 @@ class Chunk extends BaseChunk{
 			$chunk->nbt->LightPopulated = new ByteTag("LightPopulated", 0);
 
 			return $chunk;
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return null;
 		}
 	}
diff --git a/src/pocketmine/level/format/leveldb/Chunk.php b/src/pocketmine/level/format/leveldb/Chunk.php
index d4f64d3fe..9716605d0 100644
--- a/src/pocketmine/level/format/leveldb/Chunk.php
+++ b/src/pocketmine/level/format/leveldb/Chunk.php
@@ -305,7 +305,7 @@ class Chunk extends BaseFullChunk{
 				$chunk->setLightPopulated();
 			}
 			return $chunk;
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return null;
 		}
 	}
@@ -393,7 +393,7 @@ class Chunk extends BaseFullChunk{
 			$chunk = new Chunk($provider instanceof LevelProvider ? $provider : LevelDB::class, $chunkX, $chunkZ, str_repeat("\x00", self::DATA_LENGTH));
 			$chunk->skyLight = str_repeat("\xff", 16384);
 			return $chunk;
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return null;
 		}
 	}
diff --git a/src/pocketmine/level/format/mcregion/Chunk.php b/src/pocketmine/level/format/mcregion/Chunk.php
index 0d4909f31..af8273adc 100644
--- a/src/pocketmine/level/format/mcregion/Chunk.php
+++ b/src/pocketmine/level/format/mcregion/Chunk.php
@@ -315,7 +315,7 @@ class Chunk extends BaseFullChunk{
 			}
 
 			return new Chunk($provider instanceof LevelProvider ? $provider : McRegion::class, $chunk->Level);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return null;
 		}
 	}
@@ -353,7 +353,7 @@ class Chunk extends BaseFullChunk{
 			$chunk->nbt->LightPopulated = new ByteTag("LightPopulated", ($flags >> 2) & 0b1);
 
 			return $chunk;
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return null;
 		}
 	}
@@ -461,7 +461,7 @@ class Chunk extends BaseFullChunk{
 			$chunk->nbt->LightPopulated = new ByteTag("LightPopulated", 0);
 
 			return $chunk;
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return null;
 		}
 	}
diff --git a/src/pocketmine/level/format/mcregion/RegionLoader.php b/src/pocketmine/level/format/mcregion/RegionLoader.php
index c7a528874..c410f7ac5 100644
--- a/src/pocketmine/level/format/mcregion/RegionLoader.php
+++ b/src/pocketmine/level/format/mcregion/RegionLoader.php
@@ -195,7 +195,7 @@ class RegionLoader{
 
 			try{
 				$chunk = zlib_decode(substr($chunk, 5));
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				$this->locationTable[$i] = [0, 0, 0]; //Corrupted chunk, remove it
 				continue;
 			}
diff --git a/src/pocketmine/network/CompressBatchedTask.php b/src/pocketmine/network/CompressBatchedTask.php
index 22a4aaa90..66f546295 100644
--- a/src/pocketmine/network/CompressBatchedTask.php
+++ b/src/pocketmine/network/CompressBatchedTask.php
@@ -43,12 +43,12 @@ class CompressBatchedTask extends AsyncTask{
 		try{
 			$this->final = zlib_encode($this->data, ZLIB_ENCODING_DEFLATE, $this->level);
 			$this->data = null;
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 
 		}
 	}
 
 	public function onCompletion(Server $server){
-		$server->broadcastPacketsCallback($this->final, $this->targets, $this->channel);
+		$server->broadcastPacketsCallback($this->final, $this->targets);
 	}
 }
\ No newline at end of file
diff --git a/src/pocketmine/network/Network.php b/src/pocketmine/network/Network.php
index 8540d56b7..05da01ed3 100644
--- a/src/pocketmine/network/Network.php
+++ b/src/pocketmine/network/Network.php
@@ -157,7 +157,7 @@ class Network{
 		foreach($this->interfaces as $interface){
 			try {
 				$interface->process();
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				$logger = $this->server->getLogger();
 				if(\pocketmine\DEBUG > 1){
 					if($logger instanceof MainLogger){
@@ -253,7 +253,7 @@ class Network{
 					}
 				}
 			}
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			if(\pocketmine\DEBUG > 1){
 				$logger = $this->server->getLogger();
 				if($logger instanceof MainLogger){
diff --git a/src/pocketmine/network/RakLibInterface.php b/src/pocketmine/network/RakLibInterface.php
index 0a7a55216..ae98c7f12 100644
--- a/src/pocketmine/network/RakLibInterface.php
+++ b/src/pocketmine/network/RakLibInterface.php
@@ -140,7 +140,7 @@ class RakLibInterface implements ServerInstance, AdvancedSourceInterface{
 						$this->players[$identifier]->handleDataPacket($pk);
 					}
 				}
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				if(\pocketmine\DEBUG > 1 and isset($pk)){
 					$logger = $this->server->getLogger();
 					if($logger instanceof MainLogger){
diff --git a/src/pocketmine/network/rcon/RCON.php b/src/pocketmine/network/rcon/RCON.php
index 455d018d0..50347b093 100644
--- a/src/pocketmine/network/rcon/RCON.php
+++ b/src/pocketmine/network/rcon/RCON.php
@@ -70,7 +70,7 @@ class RCON{
 	public function stop(){
 		for($n = 0; $n < $this->threads; ++$n){
 			$this->workers[$n]->close();
-			usleep(50000);
+			Server::microSleep(50000);
 			$this->workers[$n]->kill();
 		}
 		@socket_close($this->socket);
diff --git a/src/pocketmine/network/rcon/RCONInstance.php b/src/pocketmine/network/rcon/RCONInstance.php
index 92d289647..b7d9990fb 100644
--- a/src/pocketmine/network/rcon/RCONInstance.php
+++ b/src/pocketmine/network/rcon/RCONInstance.php
@@ -85,7 +85,9 @@ class RCONInstance extends Thread{
 	public function run(){
 
 		while($this->stop !== true){
-			usleep(2000);
+			$this->synchronized(function(){
+				$this->wait(2000);
+			});
 			$r = [$socket = $this->socket];
 			$w = null;
 			$e = null;
@@ -162,7 +164,7 @@ class RCONInstance extends Thread{
 								}
 								break;
 						}
-						usleep(1);
+
 					}else{
 						@socket_set_option($client, SOL_SOCKET, SO_LINGER, ["l_onoff" => 1, "l_linger" => 1]);
 						@socket_shutdown($client, 2);
diff --git a/src/pocketmine/network/upnp/UPnP.php b/src/pocketmine/network/upnp/UPnP.php
index e9b116dc2..e4ea65792 100644
--- a/src/pocketmine/network/upnp/UPnP.php
+++ b/src/pocketmine/network/upnp/UPnP.php
@@ -42,7 +42,7 @@ abstract class UPnP{
 				return false;
 			}
 			$com->StaticPortMappingCollection->Add($port, "UDP", $port, $myLocalIP, true, "PocketMine-MP");
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return false;
 		}
 
@@ -63,7 +63,7 @@ abstract class UPnP{
 				return false;
 			}
 			$com->StaticPortMappingCollection->Remove($port, "UDP");
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 			return false;
 		}
 
diff --git a/src/pocketmine/plugin/PluginManager.php b/src/pocketmine/plugin/PluginManager.php
index 4110bb73d..e52844782 100644
--- a/src/pocketmine/plugin/PluginManager.php
+++ b/src/pocketmine/plugin/PluginManager.php
@@ -249,7 +249,7 @@ class PluginManager{
 								}
 							}
 						}
-					}catch(\Exception $e){
+					}catch(\Throwable $e){
 						$this->server->getLogger()->error($this->server->getLanguage()->translateString("pocketmine.plugin.fileError", [$file, $directory, $e->getMessage()]));
 						$logger = $this->server->getLogger();
 						if($logger instanceof MainLogger){
@@ -563,7 +563,7 @@ class PluginManager{
 					$this->addPermission($perm);
 				}
 				$plugin->getPluginLoader()->enablePlugin($plugin);
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				$logger = Server::getInstance()->getLogger();
 				if($logger instanceof MainLogger){
 					$logger->logException($e);
@@ -637,7 +637,7 @@ class PluginManager{
 		if($plugin->isEnabled()){
 			try{
 				$plugin->getPluginLoader()->disablePlugin($plugin);
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				$logger = Server::getInstance()->getLogger();
 				if($logger instanceof MainLogger){
 					$logger->logException($e);
@@ -674,7 +674,7 @@ class PluginManager{
 
 			try{
 				$registration->callEvent($event);
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				$this->server->getLogger()->critical(
 					$this->server->getLanguage()->translateString("pocketmine.plugin.eventError", [
 						$event->getEventName(),
diff --git a/src/pocketmine/scheduler/AsyncPool.php b/src/pocketmine/scheduler/AsyncPool.php
index 65b68a690..bb0914a61 100644
--- a/src/pocketmine/scheduler/AsyncPool.php
+++ b/src/pocketmine/scheduler/AsyncPool.php
@@ -109,8 +109,7 @@ class AsyncPool{
 			if(!$force and ($task->isRunning() or !$task->isGarbage())){
 				return;
 			}
-			$this->workers[$w = $this->taskWorkers[$task->getTaskId()]]->unstack($task);
-			$this->workerUsage[$w]--;
+			$this->workerUsage[$this->taskWorkers[$task->getTaskId()]]--;
 		}
 
 		unset($this->tasks[$task->getTaskId()]);
@@ -127,7 +126,7 @@ class AsyncPool{
 			}
 
 			if(count($this->tasks) > 0){
-				usleep(25000);
+				Server::microSleep(25000);
 			}
 		}while(count($this->tasks) > 0);
 
diff --git a/src/pocketmine/scheduler/AsyncTask.php b/src/pocketmine/scheduler/AsyncTask.php
index 48bcb3bc4..17b9320cd 100644
--- a/src/pocketmine/scheduler/AsyncTask.php
+++ b/src/pocketmine/scheduler/AsyncTask.php
@@ -144,7 +144,9 @@ abstract class AsyncTask extends \Collectable{
 
 	public function cleanObject(){
 		foreach($this as $p => $v){
-			$this->{$p} = null;
+			if(!($v instanceof \Threaded)){
+				$this->{$p} = null;
+			}
 		}
 	}
 
diff --git a/src/pocketmine/scheduler/AsyncWorker.php b/src/pocketmine/scheduler/AsyncWorker.php
index 3d1825c56..d9d38d6f2 100644
--- a/src/pocketmine/scheduler/AsyncWorker.php
+++ b/src/pocketmine/scheduler/AsyncWorker.php
@@ -35,7 +35,7 @@ class AsyncWorker extends Worker{
 
 	}
 
-	public function start($options = PTHREADS_INHERIT_NONE){
+	public function start(int $options = PTHREADS_INHERIT_NONE){
 		parent::start(PTHREADS_INHERIT_CONSTANTS | PTHREADS_INHERIT_FUNCTIONS);
 	}
 
diff --git a/src/pocketmine/scheduler/FileWriteTask.php b/src/pocketmine/scheduler/FileWriteTask.php
index f952e91e8..d76174d1a 100644
--- a/src/pocketmine/scheduler/FileWriteTask.php
+++ b/src/pocketmine/scheduler/FileWriteTask.php
@@ -36,7 +36,7 @@ class FileWriteTask extends AsyncTask{
 	public function onRun(){
 		try{
 			file_put_contents($this->path, $this->contents, (int) $this->flags);
-		}catch (\Exception $e){
+		}catch (\Throwable $e){
 
 		}
 	}
diff --git a/src/pocketmine/scheduler/SendUsageTask.php b/src/pocketmine/scheduler/SendUsageTask.php
index 632d0563a..911f9717a 100644
--- a/src/pocketmine/scheduler/SendUsageTask.php
+++ b/src/pocketmine/scheduler/SendUsageTask.php
@@ -143,7 +143,7 @@ class SendUsageTask extends AsyncTask{
 				"Content-Type: application/json",
 				"Content-Length: ". strlen($this->data)
 			]);
-		}catch(\Exception $e){
+		}catch(\Throwable $e){
 
 		}
 	}
diff --git a/src/pocketmine/scheduler/ServerScheduler.php b/src/pocketmine/scheduler/ServerScheduler.php
index 4271f0f72..4c5503306 100644
--- a/src/pocketmine/scheduler/ServerScheduler.php
+++ b/src/pocketmine/scheduler/ServerScheduler.php
@@ -160,7 +160,9 @@ class ServerScheduler{
 		}
 		$this->tasks = [];
 		$this->asyncPool->removeTasks();
-		$this->queue = new ReversePriorityQueue();
+		while(!$this->queue->isEmpty()){
+			$this->queue->extract();
+		}
 		$this->ids = 1;
 	}
 
@@ -245,7 +247,7 @@ class ServerScheduler{
 				$task->timings->startTiming();
 				try{
 					$task->run($this->currentTick);
-				}catch(\Exception $e){
+				}catch(\Throwable $e){
 					Server::getInstance()->getLogger()->critical("Could not execute task " . $task->getTaskName() . ": " . $e->getMessage());
 					$logger = Server::getInstance()->getLogger();
 					if($logger instanceof MainLogger){
diff --git a/src/pocketmine/utils/Config.php b/src/pocketmine/utils/Config.php
index 5de2ed481..dbcfb40c1 100644
--- a/src/pocketmine/utils/Config.php
+++ b/src/pocketmine/utils/Config.php
@@ -207,7 +207,7 @@ class Config{
 				}else{
 					file_put_contents($this->file, $content);
 				}
-			}catch(\Exception $e){
+			}catch(\Throwable $e){
 				$logger = Server::getInstance()->getLogger();
 				$logger->critical("Could not save Config " . $this->file . ": " . $e->getMessage());
 				if(\pocketmine\DEBUG > 1 and $logger instanceof MainLogger){
diff --git a/src/pocketmine/utils/MainLogger.php b/src/pocketmine/utils/MainLogger.php
index 94929f941..f40349544 100644
--- a/src/pocketmine/utils/MainLogger.php
+++ b/src/pocketmine/utils/MainLogger.php
@@ -101,7 +101,7 @@ class MainLogger extends \AttachableThreadedLogger{
 		$this->logDebug = (bool) $logDebug;
 	}
 
-	public function logException(\Exception $e, $trace = null){
+	public function logException(\Throwable $e, $trace = null){
 		if($trace === null){
 			$trace = $e->getTrace();
 		}
diff --git a/src/raklib b/src/raklib
index d7da0c554..11fc08675 160000
--- a/src/raklib
+++ b/src/raklib
@@ -1 +1 @@
-Subproject commit d7da0c5549215c7616a6fc103299afb0aeac88e7
+Subproject commit 11fc08675d301e73f1dbdec24029663a576de2c4
diff --git a/src/spl b/src/spl
index d59c0f673..9c79e91a0 160000
--- a/src/spl
+++ b/src/spl
@@ -1 +1 @@
-Subproject commit d59c0f673455f02b2620853f3fa6290d63ffd960
+Subproject commit 9c79e91a03dffe64101660e959da2593264f1462
diff --git a/start.sh b/start.sh
index b84f60d73..d4dcd8080 100755
--- a/start.sh
+++ b/start.sh
@@ -22,13 +22,13 @@ while getopts "p:f:l" OPTION 2> /dev/null; do
 done
 
 if [ "$PHP_BINARY" == "" ]; then
-	if [ -f ./bin/php5/bin/php ]; then
+	if [ -f ./bin/php7/bin/php ]; then
 		export PHPRC=""
-		PHP_BINARY="./bin/php5/bin/php"
+		PHP_BINARY="./bin/php7/bin/php"
 	elif [ type php 2>/dev/null ]; then
 		PHP_BINARY=$(type -p php)
 	else
-		echo "Couldn't find a working PHP binary, please use the installer."
+		echo "Couldn't find a working PHP 7 binary, please use the installer."
 		exit 1
 	fi
 fi
@@ -58,4 +58,4 @@ done
 
 if [ ${LOOPS} -gt 1 ]; then
 	echo "Restarted $LOOPS times"
-fi
\ No newline at end of file
+fi