From 8d86eed0a79d6ba264276585467e54cb516920a2 Mon Sep 17 00:00:00 2001
From: Luck <git@lucko.me>
Date: Wed, 15 Feb 2017 19:39:24 +0000
Subject: [PATCH] Don't bother adding checks to the listener queue if no
 listeners are registered

---
 .../lucko/luckperms/common/debug/DebugHandler.java   | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/common/src/main/java/me/lucko/luckperms/common/debug/DebugHandler.java b/common/src/main/java/me/lucko/luckperms/common/debug/DebugHandler.java
index 384621b41..744682344 100644
--- a/common/src/main/java/me/lucko/luckperms/common/debug/DebugHandler.java
+++ b/common/src/main/java/me/lucko/luckperms/common/debug/DebugHandler.java
@@ -39,6 +39,7 @@ public class DebugHandler implements Runnable {
 
     private final Map<UUID, DebugListener> listeners;
     private final Queue<CheckData> queue;
+    private boolean listening = false;
 
     @Setter
     private boolean shutdown = false;
@@ -52,16 +53,25 @@ public class DebugHandler implements Runnable {
     }
 
     public void offer(String checked, String node, Tristate value) {
+        if (!listening) {
+            return;
+        }
+
         queue.offer(new CheckData(checked, node, value));
     }
 
     public void register(Sender sender, String filter, boolean notify) {
+        listening = true;
         listeners.put(sender.getUuid(), new DebugListener(pluginVersion, sender, filter, notify));
     }
 
     public DebugListener unregister(UUID uuid) {
         flush();
-        return listeners.remove(uuid);
+        DebugListener ret = listeners.remove(uuid);
+        if (listeners.isEmpty()) {
+            listening = false;
+        }
+        return ret;
     }
 
     @Override