Don't call deprecated methods.

ProtocolLib/src/main/java/com/comphenix/protocol/CommandProtocol.java

@@ -25,6 +25,7 @@ import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.metrics.Updater;
 import com.comphenix.protocol.metrics.Updater.UpdateResult;
 import com.comphenix.protocol.metrics.Updater.UpdateType;
+import com.comphenix.protocol.utility.WrappedScheduler;
 
 /**
  * Handles the "protocol" administration command.
@@ -64,10 +65,9 @@ class CommandProtocol extends CommandBase {
 		return true;
 	}
 	
-	@SuppressWarnings("deprecation")
 	public void checkVersion(final CommandSender sender) {
 		// Perform on an async thread
-		plugin.getServer().getScheduler().scheduleAsyncDelayedTask(plugin, new Runnable() {
+		 WrappedScheduler.runAsynchronouslyOnce(plugin, new Runnable() {
 			@Override
 			public void run() {
 				try {
@@ -77,15 +77,14 @@ class CommandProtocol extends CommandBase {
 					getReporter().reportDetailed(this, "Cannot check updates for ProtocolLib.", e, sender);
 				}
 			}
-		});
+		}, 0L);
 		
 		updateFinished();
 	}
 	
-	@SuppressWarnings("deprecation")
 	public void updateVersion(final CommandSender sender) {
 		// Perform on an async thread
-		plugin.getServer().getScheduler().scheduleAsyncDelayedTask(plugin, new Runnable() {
+		WrappedScheduler.runAsynchronouslyOnce(plugin, new Runnable() {
 			@Override
 			public void run() {
 				try {
@@ -95,7 +94,7 @@ class CommandProtocol extends CommandBase {
 					getReporter().reportDetailed(this, "Cannot update ProtocolLib.", e, sender);
 				}
 			}
-		});
+		}, 0L);
 		
 		updateFinished();
 	}

ProtocolLib/src/main/java/com/comphenix/protocol/async/AsyncListenerHandler.java

@@ -30,6 +30,7 @@ import com.comphenix.protocol.events.ListeningWhitelist;
 import com.comphenix.protocol.events.PacketAdapter;
 import com.comphenix.protocol.events.PacketEvent;
 import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.utility.WrappedScheduler;
 import com.google.common.base.Function;
 import com.google.common.base.Joiner;
 
@@ -298,9 +299,9 @@ public class AsyncListenerHandler {
 		});
 	}
 	
-	@SuppressWarnings("deprecation")
 	private void scheduleAsync(Runnable runnable) {
-		filterManager.getScheduler().scheduleAsyncDelayedTask(listener.getPlugin(), runnable);
+		// Handle deprecation
+		WrappedScheduler.runAsynchronouslyRepeat(listener.getPlugin(), filterManager.getScheduler(), runnable, 0L, -1L);
 	}
 	
 	/**

ProtocolLib/src/main/java/com/comphenix/protocol/metrics/Metrics.java

@@ -239,7 +239,7 @@ public class Metrics {
             }
 
             // Begin hitting the server with glorious data
-            task = WrappedScheduler.runAsynchronously(plugin, new Runnable() {
+            task = WrappedScheduler.runAsynchronouslyRepeat(plugin, new Runnable() {
 
                 private boolean firstPost = true;
 

ProtocolLib/src/main/java/com/comphenix/protocol/utility/WrappedScheduler.java

@@ -21,15 +21,26 @@ public class WrappedScheduler {
 	}
 	
 	/**
-	 * Schedule a given task for asynchronous execution.
+	 * Schedule a given task for a single asynchronous execution.
+	 * @param plugin - the owner plugin.
+	 * @param runnable - the task to run.
+	 * @param firstDelay - the amount of time to wait until executing the task.
+	 * @return A cancel token.
+	 */
+	public static TaskWrapper runAsynchronouslyOnce(final Plugin plugin, Runnable runnable, long firstDelay) {
+		return runAsynchronouslyRepeat(plugin, plugin.getServer().getScheduler(), runnable, firstDelay, -1L);
+	}
+	
+	/**
+	 * Schedule a given task for multiple asynchronous executions.
 	 * @param plugin - the owner plugin.
 	 * @param runnable - the task to run.
 	 * @param firstDelay - the amount of time to wait until executing the task for the first time.
 	 * @param repeatDelay - the amount of time inbetween each execution. If less than zero, the task is only executed once.
 	 * @return A cancel token.
 	 */
-	public static TaskWrapper runAsynchronously(final Plugin plugin, Runnable runnable, long firstDelay, long repeatDelay) {
-		return runAsynchronously(plugin, plugin.getServer().getScheduler(), runnable, firstDelay, repeatDelay);
+	public static TaskWrapper runAsynchronouslyRepeat(final Plugin plugin, Runnable runnable, long firstDelay, long repeatDelay) {
+		return runAsynchronouslyRepeat(plugin, plugin.getServer().getScheduler(), runnable, firstDelay, repeatDelay);
 	}
 	
 	/**
@@ -41,7 +52,7 @@ public class WrappedScheduler {
 	 * @param repeatDelay - the amount of time inbetween each execution. If less than zero, the task is only executed once.
 	 * @return A cancel token.
 	 */
-	public static TaskWrapper runAsynchronously(final Plugin plugin, final BukkitScheduler scheduler, Runnable runnable, long firstDelay, long repeatDelay) {
+	public static TaskWrapper runAsynchronouslyRepeat(final Plugin plugin, final BukkitScheduler scheduler, Runnable runnable, long firstDelay, long repeatDelay) {
 		try {
 			@SuppressWarnings("deprecation")
 			final int taskID = scheduler.scheduleAsyncRepeatingTask(plugin, runnable, firstDelay, repeatDelay);