diff --git a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/BukkitConfigurationManager.java b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/BukkitConfigurationManager.java
index 9f54750b..a48182c1 100644
--- a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/BukkitConfigurationManager.java
+++ b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/BukkitConfigurationManager.java
@@ -26,6 +26,7 @@
 import com.sk89q.worldedit.util.report.Unreported;
 
 import java.io.File;
+import java.util.Collection;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 
@@ -47,7 +48,7 @@ public BukkitConfigurationManager(WorldGuardPlugin plugin) {
         this.plugin = plugin;
     }
 
-    public Iterable<BukkitWorldConfiguration> getWorldConfigs() {
+    public Collection<BukkitWorldConfiguration> getWorldConfigs() {
         return worlds.values();
     }
 
diff --git a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/WorldGuardPlugin.java b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/WorldGuardPlugin.java
index 4c292689..9f0de6ea 100644
--- a/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/WorldGuardPlugin.java
+++ b/worldguard-bukkit/src/main/java/com/sk89q/worldguard/bukkit/WorldGuardPlugin.java
@@ -232,12 +232,12 @@ private void setupCustomCharts(Metrics metrics) {
             int whitelisted = 0;
             for (BukkitWorldConfiguration worldConfig : platform.getGlobalStateManager().getWorldConfigs()) {
                 Blacklist blacklist = worldConfig.getBlacklist();
-                if (blacklist == null || blacklist.isEmpty()) {
-                    continue;
-                } else if (blacklist.isWhitelist()) {
-                    whitelisted += blacklist.getItemCount();
-                } else {
-                    blacklisted += blacklist.getItemCount();
+                if (blacklist != null && !blacklist.isEmpty()) {
+                    if (blacklist.isWhitelist()) {
+                        whitelisted += blacklist.getItemCount();
+                    } else {
+                        blacklisted += blacklist.getItemCount();
+                    }
                 }
             }
             Map<String, Integer> blacklistCounts = new HashMap<>();
@@ -246,9 +246,9 @@ private void setupCustomCharts(Metrics metrics) {
             return blacklistCounts;
         }));
         metrics.addCustomChart(new Metrics.SimplePie("chest_protection", () ->
-                "" + Streams.stream(platform.getGlobalStateManager().getWorldConfigs()).anyMatch(cfg -> cfg.signChestProtection)));
+                "" + platform.getGlobalStateManager().getWorldConfigs().stream().anyMatch(cfg -> cfg.signChestProtection)));
         metrics.addCustomChart(new Metrics.SimplePie("build_permissions", () ->
-                "" + Streams.stream(platform.getGlobalStateManager().getWorldConfigs()).anyMatch(cfg -> cfg.buildPermissions)));
+                "" + platform.getGlobalStateManager().getWorldConfigs().stream().anyMatch(cfg -> cfg.buildPermissions)));
 
         metrics.addCustomChart(new Metrics.SimplePie("custom_flags", () ->
                 "" + (WorldGuard.getInstance().getFlagRegistry().size() > Flags.INBUILT_FLAGS.size())));