Added suppress-tick-sync-warnings option.

config.yml

@@ -21,6 +21,8 @@
 
 summary-on-start: on
 
+suppress-tick-sync-warnings: false
+
 protection:
     enforce-single-session: on
     item-durability: on

src/com/sk89q/worldguard/TickSyncDelayLoggerFilter.java

@@ -0,0 +1,35 @@
+// $Id$
+/*
+ * WorldGuard
+ * Copyright (C) 2010 sk89q <http://www.sk89q.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package com.sk89q.worldguard;
+
+import java.util.logging.Filter;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+
+public class TickSyncDelayLoggerFilter implements Filter {
+    public boolean isLoggable(LogRecord record) {
+        if (record.getMessage().equals("Can't keep up! Did the system time change, or is the server overloaded?")
+                && record.getLevel() == Level.WARNING) {
+            return false;
+        }
+        
+        return true;
+    }
+}

src/com/sk89q/worldguard/bukkit/WorldGuardPlugin.java

@@ -52,6 +52,7 @@
 import com.sk89q.worldedit.bukkit.WorldEditPlugin;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldguard.LocalPlayer;
+import com.sk89q.worldguard.TickSyncDelayLoggerFilter;
 import com.sk89q.worldguard.blacklist.*;
 import com.sk89q.worldguard.blacklist.loggers.*;
 import com.sk89q.worldguard.domains.DefaultDomain;
@@ -92,6 +93,8 @@ public class WorldGuardPlugin extends JavaPlugin {
     
     // Configuration follows
     
+    boolean suppressTickSyncWarnings;
+    
     boolean enforceOneSession;
     boolean itemDurability;
 
@@ -161,6 +164,10 @@ public WorldGuardPlugin(PluginLoader pluginLoader, Server instance,
         loadConfiguration();
         postReload();
         registerEvents();
+
+        if (suppressTickSyncWarnings) {
+            Logger.getLogger("Minecraft").setFilter(new TickSyncDelayLoggerFilter());
+        }
     }
 
     /**
@@ -262,6 +269,8 @@ public void loadConfiguration() {
         Configuration config = getConfiguration();
         config.load();
         perms.load();
+        
+        suppressTickSyncWarnings = config.getBoolean("suppress-tick-sync-warnings", false);
 
         enforceOneSession = config.getBoolean("protection.enforce-single-session", true);
         itemDurability = config.getBoolean("protection.item-durability", true);