diff --git a/connector/src/main/java/org/geysermc/connector/network/session/GeyserSession.java b/connector/src/main/java/org/geysermc/connector/network/session/GeyserSession.java
index 436b6db11..ab01963eb 100644
--- a/connector/src/main/java/org/geysermc/connector/network/session/GeyserSession.java
+++ b/connector/src/main/java/org/geysermc/connector/network/session/GeyserSession.java
@@ -490,11 +490,10 @@ public class GeyserSession implements CommandSender {
 
         UpdateAttributesPacket attributesPacket = new UpdateAttributesPacket();
         attributesPacket.setRuntimeEntityId(getPlayerEntity().getGeyserId());
-        List<AttributeData> attributes = new ArrayList<>();
         // Default move speed
         // Bedrock clients move very fast by default until they get an attribute packet correcting the speed
-        attributes.add(new AttributeData("minecraft:movement", 0.0f, 1024f, 0.1f, 0.1f));
-        attributesPacket.setAttributes(attributes);
+        attributesPacket.setAttributes(Collections.singletonList(
+                new AttributeData("minecraft:movement", 0.0f, 1024f, 0.1f, 0.1f)));
         upstream.sendPacket(attributesPacket);
 
         GameRulesChangedPacket gamerulePacket = new GameRulesChangedPacket();
@@ -709,7 +708,7 @@ public class GeyserSession implements CommandSender {
 
                 // Let the user know there locale may take some time to download
                 // as it has to be extracted from a JAR
-                if (locale.toLowerCase().equals("en_us") && !LocaleUtils.LOCALE_MAPPINGS.containsKey("en_us")) {
+                if (locale.equalsIgnoreCase("en_us") && !LocaleUtils.LOCALE_MAPPINGS.containsKey("en_us")) {
                     // This should probably be left hardcoded as it will only show for en_us clients
                     sendMessage("Loading your locale (en_us); if this isn't already downloaded, this may take some time");
                 }
@@ -1163,7 +1162,7 @@ public class GeyserSession implements CommandSender {
         noClip = gameMode == GameMode.SPECTATOR;
         worldImmutable = gameMode == GameMode.ADVENTURE || gameMode == GameMode.SPECTATOR;
 
-        Set<AdventureSetting> flags = new HashSet<>();
+        Set<AdventureSetting> flags = adventureSettingsPacket.getSettings();
         if (canFly) {
             flags.add(AdventureSetting.MAY_FLY);
         }
@@ -1182,7 +1181,6 @@ public class GeyserSession implements CommandSender {
 
         flags.add(AdventureSetting.AUTO_JUMP);
 
-        adventureSettingsPacket.getSettings().addAll(flags);
         sendUpstreamPacket(adventureSettingsPacket);
     }
 
diff --git a/connector/src/main/java/org/geysermc/connector/network/translators/java/world/JavaPlayEffectTranslator.java b/connector/src/main/java/org/geysermc/connector/network/translators/java/world/JavaPlayEffectTranslator.java
index f7285af2e..7f15213ca 100644
--- a/connector/src/main/java/org/geysermc/connector/network/translators/java/world/JavaPlayEffectTranslator.java
+++ b/connector/src/main/java/org/geysermc/connector/network/translators/java/world/JavaPlayEffectTranslator.java
@@ -39,10 +39,10 @@ import org.geysermc.connector.network.translators.PacketTranslator;
 import org.geysermc.connector.network.translators.Translator;
 import org.geysermc.connector.network.translators.effect.Effect;
 import org.geysermc.connector.network.translators.effect.EffectRegistry;
+import org.geysermc.connector.network.translators.world.block.BlockTranslator;
 import org.geysermc.connector.utils.LocaleUtils;
 
-import java.util.ArrayList;
-import java.util.List;
+import java.util.Collections;
 import java.util.Locale;
 
 @Translator(packet = ServerPlayEffectPacket.class)
@@ -74,10 +74,8 @@ public class JavaPlayEffectTranslator extends PacketTranslator<ServerPlayEffectP
                 textPacket.setPlatformChatId("");
                 textPacket.setSourceName(null);
                 textPacket.setMessage("record.nowPlaying");
-                List<String> params = new ArrayList<>();
                 String recordString = "%item." + soundEvent.name().toLowerCase(Locale.ROOT) + ".desc";
-                params.add(LocaleUtils.getLocaleString(recordString, session.getLocale()));
-                textPacket.setParameters(params);
+                textPacket.setParameters(Collections.singletonList(LocaleUtils.getLocaleString(recordString, session.getLocale())));
                 session.sendUpstreamPacket(textPacket);
             }
             return;
diff --git a/connector/src/main/java/org/geysermc/connector/utils/FireworkColor.java b/connector/src/main/java/org/geysermc/connector/utils/FireworkColor.java
index 36eda6adc..8846e477c 100644
--- a/connector/src/main/java/org/geysermc/connector/utils/FireworkColor.java
+++ b/connector/src/main/java/org/geysermc/connector/utils/FireworkColor.java
@@ -69,9 +69,9 @@ public enum FireworkColor {
     private static final FireworkColor[] VALUES = values();
 
     @Getter
-    private byte bedrockID;
+    private final byte bedrockID;
     @Getter
-    private int javaID;
+    private final int javaID;
 
     FireworkColor(byte bedrockID, int javaID) {
         this.bedrockID = bedrockID;