Decrease final startup memory usage

core/src/main/java/org/geysermc/geyser/registry/loader/NbtRegistryLoader.java

@@ -37,7 +37,7 @@ public class NbtRegistryLoader implements RegistryLoader<String, NbtMap> {
 
     @Override
     public NbtMap load(String input) {
-        try (NBTInputStream nbtInputStream = NbtUtils.createNetworkReader(GeyserImpl.getInstance().getBootstrap().getResource(input))) {
+        try (NBTInputStream nbtInputStream = NbtUtils.createNetworkReader(GeyserImpl.getInstance().getBootstrap().getResource(input), true, true)) {
             return (NbtMap) nbtInputStream.readTag();
         } catch (Exception e) {
             throw new AssertionError("Failed to load registrations for " + input, e);

core/src/main/java/org/geysermc/geyser/registry/populator/BlockRegistryPopulator.java

@@ -28,6 +28,8 @@ package org.geysermc.geyser.registry.populator;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ArrayNode;
 import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.Interner;
+import com.google.common.collect.Interners;
 import it.unimi.dsi.fastutil.objects.*;
 import org.cloudburstmc.nbt.*;
 import org.cloudburstmc.protocol.bedrock.codec.v544.Bedrock_v544;
@@ -84,10 +86,14 @@ public final class BlockRegistryPopulator {
                 })
                 .build();
 
+        // We can keep this strong as nothing should be garbage collected
+        // Safe to intern since Cloudburst NBT is immutable
+        Interner<NbtMap> statesInterner = Interners.newStrongInterner();
+
         for (Map.Entry<ObjectIntPair<String>, BiFunction<String, NbtMapBuilder, String>> palette : blockMappers.entrySet()) {
             NbtList<NbtMap> blocksTag;
             try (InputStream stream = GeyserImpl.getInstance().getBootstrap().getResource(String.format("bedrock/block_palette.%s.nbt", palette.getKey().key()));
-                 NBTInputStream nbtInputStream = new NBTInputStream(new DataInputStream(new GZIPInputStream(stream)))) {
+                 NBTInputStream nbtInputStream = new NBTInputStream(new DataInputStream(new GZIPInputStream(stream)), true, true)) {
                 NbtMap blockPalette = (NbtMap) nbtInputStream.readTag();
                 blocksTag = (NbtList<NbtMap>) blockPalette.getList("blocks", NbtType.COMPOUND);
             } catch (Exception e) {
@@ -102,6 +108,7 @@ public final class BlockRegistryPopulator {
             for (int i = 0; i < blocksTag.size(); i++) {
                 NbtMapBuilder builder = blocksTag.get(i).toBuilder();
                 builder.remove("name_hash"); // Quick workaround - was added in 1.19.20
+                builder.putCompound("states", statesInterner.intern((NbtMap) builder.remove("states")));
                 NbtMap tag = builder.build();
                 if (blockStateOrderedMap.containsKey(tag)) {
                     throw new AssertionError("Duplicate block states in Bedrock palette: " + tag);

core/src/main/java/org/geysermc/geyser/translator/protocol/java/JavaCommandsTranslator.java

@@ -172,7 +172,7 @@ public class JavaCommandsTranslator extends PacketTranslator<ClientboundCommands
             LinkedHashMap<String, Set<CommandEnumConstraint>> values = new LinkedHashMap<>();
             // Is this right?
             for (String s : entry.getValue()) {
-                values.put(s, Set.of(CommandEnumConstraint.ALLOW_ALIASES));
+                values.put(s, EnumSet.of(CommandEnumConstraint.ALLOW_ALIASES));
             }
 
             // Create a basic alias

core/src/main/java/org/geysermc/geyser/util/CooldownUtils.java

@@ -29,6 +29,7 @@ import org.cloudburstmc.protocol.bedrock.packet.SetTitlePacket;
 import lombok.Getter;
 import org.geysermc.geyser.session.GeyserSession;
 import org.geysermc.geyser.session.cache.PreferencesCache;
+import org.geysermc.geyser.text.ChatColor;
 
 import java.util.concurrent.TimeUnit;
 
@@ -131,12 +132,12 @@ public class CooldownUtils {
 
         int darkGrey = (int) Math.floor(10d * cooldown);
         int grey = 10 - darkGrey;
-        StringBuilder builder = new StringBuilder("§8");
+        StringBuilder builder = new StringBuilder(ChatColor.DARK_GRAY);
         while (darkGrey > 0) {
             builder.append("˙");
             darkGrey--;
         }
-        builder.append("§7");
+        builder.append(ChatColor.GRAY);
         while (grey > 0) {
             builder.append("˙");
             grey--;