Add deprecated Purge to RateLimitedThreadPoolExecutor

core/src/main/java/com/seibel/distanthorizons/core/util/threading/RateLimitedThreadPoolExecutor.java

@@ -25,8 +25,11 @@ import org.apache.logging.log4j.Logger;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.ConcurrentModificationException;
+import java.util.Iterator;
 import java.util.concurrent.*;
 import java.util.concurrent.atomic.AtomicInteger;
+import java.util.function.Supplier;
 
 /**
  * Can be used to more finely control CPU usage and
@@ -157,6 +160,20 @@ public class RateLimitedThreadPoolExecutor extends ThreadPoolExecutor implements
 		}
 	}
 	
+	/** 
+	 * Deprecated since most of the time this doesn't do what we want or need.
+	 * In James testing any tasks started with {@link CompletableFuture#runAsync(Runnable, Executor)}
+	 * or {@link CompletableFuture#supplyAsync(Supplier, Executor)} converted the {@link Runnable}
+	 * and {@link CompletableFuture} into objects that didn't support being cancled and removed
+	 * from the queue. The canceled tasks were correctly never run, but couldn't be purged.
+	 */
+	@Deprecated
+	@Override
+	public void purge()
+	{
+		super.purge();
+	}
+	
 	
 	
 	//==============//