fixups from errorprone

src/main/java/carpet/mixins/Explosion_scarpetEventMixin.java

@@ -49,11 +49,11 @@ public abstract class Explosion_scarpetEventMixin
     }
 
     @Inject(method = "explode", locals = LocalCapture.CAPTURE_FAILHARD, at = @At(value = "INVOKE", target = "Lnet/minecraft/world/level/ServerExplosion;hurtEntities()V", shift = At.Shift.AFTER))
-    private void onExplosionDone(CallbackInfoReturnable<Integer> cir, List list)
+    private void onExplosionDone(CallbackInfoReturnable<Integer> cir, List toBlow)
     {
         if (EXPLOSION_OUTCOME.isNeeded() && !level.isClientSide())
         {
-            EXPLOSION_OUTCOME.onExplosion((ServerLevel) level, source, this::getIndirectSourceEntity, center, radius, fire, list, affectedEntities, blockInteraction);
+            EXPLOSION_OUTCOME.onExplosion((ServerLevel) level, source, this::getIndirectSourceEntity, center, radius, fire, toBlow, affectedEntities, blockInteraction);
         }
     }
 }

src/main/java/carpet/mixins/Inventory_scarpetEventMixin.java

@@ -18,21 +18,28 @@ public abstract class Inventory_scarpetEventMixin
 {
     @Shadow @Final public Player player;
 
+    @Shadow
+    @Final
+    public static int NOT_FOUND_INDEX;
+
+    @Shadow
+    public abstract boolean add(int slot, ItemStack itemStack);
+
     @Redirect(method = "add(Lnet/minecraft/world/item/ItemStack;)Z", at = @At(
             value = "INVOKE",
             target = "Lnet/minecraft/world/entity/player/Inventory;add(ILnet/minecraft/world/item/ItemStack;)Z"
     ))
-    private boolean onItemAcquired(Inventory playerInventory, int slot, ItemStack stack)
+    private boolean onItemAcquired(Inventory playerInventory, int slot, ItemStack itemStack)
     {
-        if (!PLAYER_PICKS_UP_ITEM.isNeeded() || !(player instanceof ServerPlayer))
-            return playerInventory.add(-1, stack);
-        int count = stack.getCount();
-        ItemStack previous = stack.copy();
-        boolean res = playerInventory.add(-1, stack);
-        if (count != stack.getCount()) // res returns false for larger item adding to a almost full ineventory
+        if (!PLAYER_PICKS_UP_ITEM.isNeeded() || !(player instanceof final ServerPlayer serverPlayer))
+            return  add(NOT_FOUND_INDEX, itemStack);
+        int count = itemStack.getCount();
+        ItemStack prevStack = itemStack.copy();
+        boolean res = add(NOT_FOUND_INDEX, itemStack);
+        if (count != itemStack.getCount()) // res returns false for larger item adding to a almost full ineventory
         {
-            ItemStack diffStack = previous.copyWithCount(count - stack.getCount());
-            PLAYER_PICKS_UP_ITEM.onItemAction((ServerPlayer) player, null, diffStack);
+            ItemStack diffStack = prevStack.copyWithCount(count - itemStack.getCount());
+            PLAYER_PICKS_UP_ITEM.onItemAction(serverPlayer, null, diffStack);
         }
         return res;
     }

src/main/java/carpet/mixins/PersistentEntitySectionManager_scarpetMixin.java

@@ -30,7 +30,7 @@ public class PersistentEntitySectionManager_scarpetMixin
         }
         else
         {
-            CarpetScriptServer.LOG.error("Failed to handle entity type " + entity.getType().getDescriptionId());
+            CarpetScriptServer.LOG.error("Failed to handle entity type {}", entity.getType().getDescriptionId());
         }
 
         event = CarpetEventServer.Event.ENTITY_LOAD.get(entity.getType());
@@ -43,7 +43,7 @@ public class PersistentEntitySectionManager_scarpetMixin
         }
         else
         {
-            CarpetScriptServer.LOG.error("Failed to handle entity type " + entity.getType().getDescriptionId());
+            CarpetScriptServer.LOG.error("Failed to handle entity type {}", entity.getType().getDescriptionId());
         }
 
     }

src/main/java/carpet/mixins/ServerGamePacketListenerImpl_scarpetEventsMixin.java

@@ -152,28 +152,29 @@ public class ServerGamePacketListenerImpl_scarpetEventsMixin
     {
         if (PLAYER_RELEASED_ITEM.isNeeded())
         {
-            InteractionHand hand = serverPlayerEntity.getUsedItemHand();
-            ItemStack stack = serverPlayerEntity.getUseItem().copy();
-            serverPlayerEntity.releaseUsingItem();
+            InteractionHand hand = player.getUsedItemHand();
+            ItemStack stack = player.getUseItem().copy();
+            player.releaseUsingItem();
             PLAYER_RELEASED_ITEM.onItemAction(player, hand, stack);
         }
         else
         {
-            serverPlayerEntity.releaseUsingItem();
+            player.releaseUsingItem();
         }
     }
 
     @Inject(method = "handleUseItemOn", cancellable = true, at = @At(
             value = "INVOKE",
-            target = "Lnet/minecraft/server/level/ServerPlayerGameMode;useItemOn(Lnet/minecraft/server/level/ServerPlayer;Lnet/minecraft/world/level/Level;Lnet/minecraft/world/item/ItemStack;Lnet/minecraft/world/InteractionHand;Lnet/minecraft/world/phys/BlockHitResult;)Lnet/minecraft/world/InteractionResult;"
+            target = "Lnet/minecraft/server/level/ServerPlayerGameMode;useItemOn(Lnet/minecraft/server/level/ServerPlayer;Lnet/minecraft/world/level/Level;Lnet/minecraft/world/item/ItemStack;Lnet/minecraft/world/InteractionHand;Lnet/minecraft/world/phys/BlockHitResult;)Lnet/minecraft/world/InteractionResult;",
+            shift = At.Shift.BEFORE
     ))
-    private void onBlockInteracted(ServerboundUseItemOnPacket playerInteractBlockC2SPacket_1, CallbackInfo ci)
+    private void onBlockInteracted(ServerboundUseItemOnPacket packet, CallbackInfo ci)
     {
         if (PLAYER_RIGHT_CLICKS_BLOCK.isNeeded())
         {
-            InteractionHand hand = playerInteractBlockC2SPacket_1.hand();
-            BlockHitResult hitRes = playerInteractBlockC2SPacket_1.hitResult();
-            if(PLAYER_RIGHT_CLICKS_BLOCK.onBlockHit(player, hand, hitRes)) {
+            InteractionHand handd = packet.hand();
+            BlockHitResult hitRes = packet.hitResult();
+            if(PLAYER_RIGHT_CLICKS_BLOCK.onBlockHit(player, handd, hitRes)) {
                 ci.cancel();
             }
         }
@@ -183,11 +184,11 @@ public class ServerGamePacketListenerImpl_scarpetEventsMixin
             value = "INVOKE",
             target = "Lnet/minecraft/server/level/ServerPlayer;resetLastActionTime()V"
     ))
-    private void onItemClicked(ServerboundUseItemPacket playerInteractItemC2SPacket_1, CallbackInfo ci)
+    private void onItemClicked(ServerboundUseItemPacket packet, CallbackInfo ci)
     {
         if (PLAYER_USES_ITEM.isNeeded())
         {
-            InteractionHand hand = playerInteractItemC2SPacket_1.hand();
+            InteractionHand hand = packet.hand();
             if(PLAYER_USES_ITEM.onItemAction(player, hand, player.getItemInHand(hand).copy())) {
                 ci.cancel();
             }
@@ -283,10 +284,10 @@ public class ServerGamePacketListenerImpl_scarpetEventsMixin
     @Inject(method = "lambda$handleChatCommand$0", // lambda of handleChatCommand(ServerboundChatCommandPacket)
             at = @At(value = "HEAD")
     )
-    private void onChatCommandMessage(ServerboundChatCommandPacket serverboundChatCommandPacket, CallbackInfo ci) {
+    private void onChatCommandMessage(ServerboundChatCommandPacket packet, CallbackInfo ci) {
         if (PLAYER_COMMAND.isNeeded())
         {
-            PLAYER_COMMAND.onPlayerMessage(player, serverboundChatCommandPacket.command());
+            PLAYER_COMMAND.onPlayerMessage(player, packet.command());
         }
     }
 }

src/main/java/carpet/mixins/ServerLevel_scarpetMixin.java

@@ -69,10 +69,10 @@ public abstract class ServerLevel_scarpetMixin extends Level
     }
 
     @Inject(method = "explode", at = @At("HEAD"), cancellable = true)
-    private void handleExplosion(Entity entity, DamageSource damageSource, ExplosionDamageCalculator explosionDamageCalculator, double x, double y, double z, float g, boolean bl, ExplosionInteraction explosionInteraction, ParticleOptions particleOptions, ParticleOptions particleOptions2, WeightedList<ExplosionParticleInfo> weightedList, Holder<SoundEvent> holder, CallbackInfo ci)
+    private void handleExplosion(Entity source, DamageSource damageSource, ExplosionDamageCalculator damageCalculator, double x, double y, double z, float r, boolean fire, ExplosionInteraction interactionType, ParticleOptions smallExplosionParticles, ParticleOptions largeExplosionParticles, WeightedList<ExplosionParticleInfo> blockParticles, Holder<SoundEvent> explosionSound, CallbackInfo ci)
     {
         if (EXPLOSION.isNeeded()) {
-            Explosion.BlockInteraction var10000 = switch (explosionInteraction) {
+            Explosion.BlockInteraction var10000 = switch (interactionType) {
                 case NONE -> Explosion.BlockInteraction.KEEP;
                 case BLOCK -> this.getCMDestroyType(GameRules.BLOCK_EXPLOSION_DROP_DECAY);
                 case MOB -> this.getGameRules().get(GameRules.MOB_GRIEFING) ? this.getCMDestroyType(GameRules.MOB_EXPLOSION_DROP_DECAY) : Explosion.BlockInteraction.KEEP;
@@ -80,7 +80,7 @@ public abstract class ServerLevel_scarpetMixin extends Level
                 case TRIGGER -> Explosion.BlockInteraction.TRIGGER_BLOCK;
             };
 
-            boolean cancelled = EXPLOSION.onExplosion((ServerLevel) (Object) this, entity, null, new Vec3(x, y, z), g, bl, null, null, var10000);
+            boolean cancelled = EXPLOSION.onExplosion((ServerLevel) (Object) this, source, null, new Vec3(x, y, z), r, fire, null, null, var10000);
             if (cancelled) ci.cancel();
         }
     }

src/main/java/carpet/script/CarpetEventServer.java

@@ -88,8 +88,7 @@ public class CarpetEventServer
     public static class Callback
     {
         public final String host;
-        @Nullable
-        public final String optionalTarget;
+        public final @Nullable String optionalTarget;
         public final FunctionValue function;
         public final List<Value> parametrizedArgs;
         public final CarpetScriptServer scriptServer;
@@ -382,15 +381,15 @@ public class CarpetEventServer
         public void removeEventCall(String hostName, String target, String funName)
         {
             removeCallsIf((c) -> c.function.getString().equals(funName)
-                    && (Objects.equals(c.host, hostName))
-                    && (Objects.equals(c.optionalTarget, target))
+                    && Objects.equals(c.host, hostName)
+                    && Objects.equals(c.optionalTarget, target)
             );
         }
 
         public void removeAllCalls(CarpetScriptHost host)
         {
-            removeCallsIf((c) -> (Objects.equals(c.host, host.getName()))
-                    && (Objects.equals(c.optionalTarget, host.user)));
+            removeCallsIf((c) -> Objects.equals(c.host, host.getName())
+                    && Objects.equals(c.optionalTarget, host.user));
         }
 
         public void createChildEvents(CarpetScriptHost host)
@@ -398,7 +397,7 @@ public class CarpetEventServer
             List<Callback> copyCalls = new ArrayList<>();
             callList.forEach((c) ->
             {
-                if ((Objects.equals(c.host, host.getName())) // TODO fix me
+                if (Objects.equals(c.host, host.getName()) // TODO fix me
                         && c.optionalTarget == null)
                 {
                     copyCalls.add(new Callback(c.host, host.user, c.function, c.parametrizedArgs, host.scriptServer()));

src/main/java/carpet/script/CarpetScriptHost.java

@@ -772,62 +772,50 @@ public class CarpetScriptHost extends ScriptHost
         String sign = "";
         for (Token tok : Tokenizer.simple(arg).parseTokens())
         {
-            switch (tok.type)
-            {
-                case VARIABLE:
+            switch (tok.type) {
+                case VARIABLE -> {
                     LazyValue variable = getGlobalVariable(tok.surface);
-                    if (variable != null)
-                    {
+                    if (variable != null) {
                         argv.add(variable);
                     }
-                    break;
-                case STRINGPARAM:
+                }
+                case STRINGPARAM -> {
                     argv.add((c, t) -> new StringValue(tok.surface));
                     sign = "";
-                    break;
-
-                case LITERAL:
-                    try
-                    {
+                }
+                case LITERAL -> {
+                    try {
                         String finalSign = sign;
                         argv.add((c, t) -> new NumericValue(finalSign + tok.surface));
                         sign = "";
-                    }
-                    catch (NumberFormatException exception)
-                    {
+                    } catch (NumberFormatException exception) {
                         throw new CarpetExpressionException("Fail: " + sign + tok.surface + " seems like a number but it is" +
                                 " not a number. Use quotes to ensure its a string", null);
                     }
-                    break;
-                case HEX_LITERAL:
-                    try
-                    {
+                }
+                case HEX_LITERAL -> {
+                    try {
                         String finalSign = sign;
                         argv.add((c, t) -> new NumericValue(new BigInteger(finalSign + tok.surface.substring(2), 16).doubleValue()));
                         sign = "";
-                    }
-                    catch (NumberFormatException exception)
-                    {
+                    } catch (NumberFormatException exception) {
                         throw new CarpetExpressionException("Fail: " + sign + tok.surface + " seems like a number but it is" +
                                 " not a number. Use quotes to ensure its a string", null);
                     }
-                    break;
-                case OPERATOR, UNARY_OPERATOR:
-                    if ((tok.surface.equals("-") || tok.surface.equals("-u")) && sign.isEmpty())
-                    {
+                }
+                case OPERATOR, UNARY_OPERATOR -> {
+                    if ((tok.surface.equals("-") || tok.surface.equals("-u")) && sign.isEmpty()) {
                         sign = "-";
-                    }
-                    else
-                    {
+                    } else {
                         throw new CarpetExpressionException("Fail: operators, like " + tok.surface + " are not " +
                                 "allowed in invoke", null);
                     }
-                    break;
-                case FUNCTION:
-                    throw new CarpetExpressionException("Fail: passing functions like " + tok.surface + "() to invoke is " +
-                            "not allowed", null);
-                case OPEN_PAREN, COMMA, CLOSE_PAREN, MARKER:
-                    throw new CarpetExpressionException("Fail: " + tok.surface + " is not allowed in invoke", null);
+                }
+                case FUNCTION ->
+                        throw new CarpetExpressionException("Fail: passing functions like " + tok.surface + "() to invoke is " +
+                                "not allowed", null);
+                case OPEN_PAREN, COMMA, CLOSE_PAREN, MARKER ->
+                        throw new CarpetExpressionException("Fail: " + tok.surface + " is not allowed in invoke", null);
             }
         }
         List<String> args = function.getArguments();
@@ -1109,7 +1097,7 @@ public class CarpetScriptHost extends ScriptHost
     }
 
     /**
-     * <p>Creates a {@link Component} using {@link carper.utils.Messenger} that has the locals in the {@code line} snippet with a hover over
+     * <p>Creates a {@link Component} using carpet.utils.Messenger that has the locals in the {@code line} snippet with a hover over
      * tooltip with the value of the local at that location</p>
      *
      * @param line    The line to find references to locals on
@@ -1189,7 +1177,7 @@ public class CarpetScriptHost extends ScriptHost
         }
         else
         {
-            CarpetScriptServer.LOG.error(intro + ": " + exception.getMessage());
+            CarpetScriptServer.LOG.error("{}", intro, exception);
         }
     }
 

src/main/java/carpet/script/CarpetScriptServer.java

@@ -83,7 +83,7 @@ public class CarpetScriptServer extends ScriptServer
 
     /**
      * Registers a Scarpet App to be used as a Rule App (to be controlled with the value of a Carpet rule).
-     * Libraries should be registered with {@link #registerBuiltInScript(BundledModule)} instead
+     * Libraries should be registered with #registerBuiltInScript(BundledModule) instead
      *
      * @param app The {@link Module} of the app.
      * @see Module#fromJarPath(String, String, boolean)
@@ -330,7 +330,7 @@ public class CarpetScriptServer extends ScriptServer
         }
         token.run();
         long end = System.nanoTime();
-        LOG.info("App " + name + " loaded in " + (end - start) / 1000000 + " ms");
+        LOG.info("App {} loaded in {} ms", name, (end - start) / 1000000);
         return 1;
     }
 

src/main/java/carpet/script/Expression.java

@@ -71,8 +71,7 @@ public class Expression
     private boolean allowNewlineSubstitutions = true;
     private boolean allowComments = false;
 
-    @Nullable
-    public Module module = null;
+    public @Nullable Module module = null;
 
     public String getModuleName()
     {
@@ -93,11 +92,9 @@ public class Expression
     /**
      * Cached AST (Abstract Syntax Tree) (root) of the expression
      */
-    @Nullable
-    private LazyValue ast = null;
+    private @Nullable LazyValue ast = null;
 
-    @Nullable
-    private ExpressionNode root = null;
+    private @Nullable ExpressionNode root = null;
 
     /**
      * script specific operatos and built-in functions
@@ -1102,118 +1099,94 @@ public class Expression
         Token previousToken = null;
         for (Token token : tokens)
         {
-            switch (token.type)
-            {
-                case STRINGPARAM:
-                    //stack.push(token); // changed that so strings are treated like literals
-                    //break;
-                case LITERAL, HEX_LITERAL:
+            switch (token.type) {
+                case STRINGPARAM,
+                     //stack.push(token); // changed that so strings are treated like literals
+                     //break;
+                     LITERAL, HEX_LITERAL -> {
                     if (previousToken != null && (
                             previousToken.type == Token.TokenType.LITERAL ||
                                     previousToken.type == Token.TokenType.HEX_LITERAL ||
-                                    previousToken.type == Token.TokenType.STRINGPARAM))
-                    {
+                                    previousToken.type == Token.TokenType.STRINGPARAM)) {
                         throw new ExpressionException(c, this, token, "Missing operator");
                     }
                     outputQueue.add(token);
-                    break;
-                case VARIABLE:
-                    outputQueue.add(token);
-                    break;
-                case FUNCTION:
+                }
+                case VARIABLE -> outputQueue.add(token);
+                case FUNCTION -> {
                     stack.push(token);
                     lastFunction = token;
-                    break;
-                case COMMA:
-                    if (previousToken != null && previousToken.type == Token.TokenType.OPERATOR)
-                    {
+                }
+                case COMMA -> {
+                    if (previousToken != null && previousToken.type == Token.TokenType.OPERATOR) {
                         throw new ExpressionException(c, this, previousToken, "Missing parameter(s) for operator ");
                     }
-                    while (!stack.isEmpty() && stack.top().type != Token.TokenType.OPEN_PAREN)
-                    {
+                    while (!stack.isEmpty() && stack.top().type != Token.TokenType.OPEN_PAREN) {
                         outputQueue.add(stack.pop());
                     }
-                    if (stack.isEmpty())
-                    {
-                        if (lastFunction == null)
-                        {
+                    if (stack.isEmpty()) {
+                        if (lastFunction == null) {
                             throw new ExpressionException(c, this, token, "Unexpected comma");
-                        }
-                        else
-                        {
+                        } else {
                             throw new ExpressionException(c, this, lastFunction, "Parse error for function");
                         }
                     }
-                    break;
-                case OPERATOR:
-                {
+                }
+                case OPERATOR -> {
                     if (previousToken != null
-                            && (previousToken.type == Token.TokenType.COMMA || previousToken.type == Token.TokenType.OPEN_PAREN))
-                    {
+                            && (previousToken.type == Token.TokenType.COMMA || previousToken.type == Token.TokenType.OPEN_PAREN)) {
                         throw new ExpressionException(c, this, token, "Missing parameter(s) for operator '" + token + "'");
                     }
                     ILazyOperator o1 = operators.get(token.surface);
-                    if (o1 == null)
-                    {
+                    if (o1 == null) {
                         throw new ExpressionException(c, this, token, "Unknown operator '" + token + "'");
                     }
 
                     shuntOperators(outputQueue, stack, o1);
                     stack.push(token);
-                    break;
                 }
-                case UNARY_OPERATOR:
-                {
+                case UNARY_OPERATOR -> {
                     if (previousToken != null && previousToken.type != Token.TokenType.OPERATOR
-                            && previousToken.type != Token.TokenType.COMMA && previousToken.type != Token.TokenType.OPEN_PAREN)
-                    {
+                            && previousToken.type != Token.TokenType.COMMA && previousToken.type != Token.TokenType.OPEN_PAREN) {
                         throw new ExpressionException(c, this, token, "Invalid position for unary operator " + token);
                     }
                     ILazyOperator o1 = operators.get(token.surface);
-                    if (o1 == null)
-                    {
+                    if (o1 == null) {
                         throw new ExpressionException(c, this, token, "Unknown unary operator '" + token.surface.substring(0, token.surface.length() - 1) + "'");
                     }
 
                     shuntOperators(outputQueue, stack, o1);
                     stack.push(token);
-                    break;
                 }
-                case OPEN_PAREN:
+                case OPEN_PAREN -> {
                     // removed implicit multiplication in this missing code block
-                    if (previousToken != null && previousToken.type == Token.TokenType.FUNCTION)
-                    {
+                    if (previousToken != null && previousToken.type == Token.TokenType.FUNCTION) {
                         outputQueue.add(token);
                     }
                     stack.push(token);
-                    break;
-                case CLOSE_PAREN:
-                    if (previousToken != null && previousToken.type == Token.TokenType.OPERATOR)
-                    {
+                }
+                case CLOSE_PAREN -> {
+                    if (previousToken != null && previousToken.type == Token.TokenType.OPERATOR) {
                         throw new ExpressionException(c, this, previousToken, "Missing parameter(s) for operator " + previousToken);
                     }
-                    while (!stack.isEmpty() && stack.top().type != Token.TokenType.OPEN_PAREN)
-                    {
+                    while (!stack.isEmpty() && stack.top().type != Token.TokenType.OPEN_PAREN) {
                         outputQueue.add(stack.pop());
                     }
-                    if (stack.isEmpty())
-                    {
+                    if (stack.isEmpty()) {
                         throw new ExpressionException(c, this, "Mismatched parentheses");
                     }
                     stack.pop();
-                    if (!stack.isEmpty() && stack.top().type == Token.TokenType.FUNCTION)
-                    {
+                    if (!stack.isEmpty() && stack.top().type == Token.TokenType.FUNCTION) {
                         outputQueue.add(stack.pop());
                     }
-                    break;
-                case MARKER:
-                    if ("$".equals(token.surface))
-                    {
+                }
+                case MARKER -> {
+                    if ("$".equals(token.surface)) {
                         StringBuilder sb = new StringBuilder(expression);
                         sb.setCharAt(token.pos, '\n');
                         expression = sb.toString();
                     }
-                    break;
+                }
             }
             if (token.type != Token.TokenType.MARKER)
             {
@@ -1437,7 +1410,7 @@ public class Expression
                     }
                     else
                     {
-                        ExpressionNode newNode = new ExpressionNode(((c, t) -> getOrSetAnyVariable(c, token.surface).evalValue(c, t)), Collections.emptyList(), token);
+                        ExpressionNode newNode = new ExpressionNode((c, t) -> getOrSetAnyVariable(c, token.surface).evalValue(c, t), Collections.emptyList(), token);
                         token.node = newNode;
                         nodeStack.push(newNode);
                     }
@@ -1767,7 +1740,7 @@ public class Expression
                 boolean leftOptimizable = operators.get(operator).isLeftAssoc();
                 ExpressionNode optimizedChild = node.args.get(leftOptimizable ? 0 : (node.args.size() - 1));
                 String type = optimizedChild.token.surface;
-                if ((type.equals(operator) || type.equals(function)) && (!(optimizedChild.op instanceof LazyValue.ContextFreeLazyValue)))
+                if ((type.equals(operator) || type.equals(function)) && !(optimizedChild.op instanceof LazyValue.ContextFreeLazyValue))
                 {
                     List<ExpressionNode> newargs = new ArrayList<>();
                     if (leftOptimizable)
@@ -1883,9 +1856,9 @@ public class Expression
         // applying argument unpacking
         args = AbstractLazyFunction.lazify(AbstractLazyFunction.unpackLazy(args, ctx, requestedType));
         Value result;
-        if (operation instanceof ILazyFunction)
+        if (operation instanceof final ILazyFunction iLazyFunction)
         {
-            result = ((ILazyFunction) operation).lazyEval(ctx, expectedType, this, node.token, args).evalValue(null, expectedType);
+            result = iLazyFunction.lazyEval(ctx, expectedType, this, node.token, args).evalValue(null, expectedType);
         }
         else if (args.size() == 1)
         {
@@ -1922,38 +1895,31 @@ public class Expression
             return (c, t) -> ret;
         }
         Token token = node.token;
-        switch (token.type)
-        {
-            case UNARY_OPERATOR:
-            {
+        return switch (token.type) {
+            case UNARY_OPERATOR -> {
                 ILazyOperator op = operators.get(token.surface);
                 Context.Type requestedType = op.staticType(expectedType);
                 LazyValue arg = extractOp(ctx, node.args.get(0), requestedType);
-                return (c, t) -> op.lazyEval(c, t, this, token, arg, null).evalValue(c, t);
+                yield (c, t) -> op.lazyEval(c, t, this, token, arg, null).evalValue(c, t);
             }
-            case OPERATOR:
-            {
+            case OPERATOR -> {
                 ILazyOperator op = operators.get(token.surface);
                 Context.Type requestedType = op.staticType(expectedType);
                 LazyValue arg = extractOp(ctx, node.args.get(0), requestedType);
                 LazyValue arh = extractOp(ctx, node.args.get(1), requestedType);
-                return (c, t) -> op.lazyEval(c, t, this, token, arg, arh).evalValue(c, t);
+                yield (c, t) -> op.lazyEval(c, t, this, token, arg, arh).evalValue(c, t);
             }
-            case VARIABLE:
-                return (c, t) -> getOrSetAnyVariable(c, token.surface).evalValue(c, t);
-            case FUNCTION:
-            {
+            case VARIABLE -> (c, t) -> getOrSetAnyVariable(c, token.surface).evalValue(c, t);
+            case FUNCTION -> {
                 ILazyFunction f = functions.get(token.surface);
                 Context.Type requestedType = f.staticType(expectedType);
                 List<LazyValue> params = node.args.stream().map(n -> extractOp(ctx, n, requestedType)).collect(Collectors.toList());
-                return (c, t) -> f.lazyEval(c, t, this, token, params).evalValue(c, t);
+                yield (c, t) -> f.lazyEval(c, t, this, token, params).evalValue(c, t);
             }
-            case CONSTANT:
-                return node.op;
-            default:
-                throw new ExpressionException(ctx, this, node.token, "Unexpected token '" + node.token.type + " " + node.token.surface + "'");
-
-        }
+            case CONSTANT -> node.op;
+            default ->
+                    throw new ExpressionException(ctx, this, node.token, "Unexpected token '" + node.token.type + " " + node.token.surface + "'");
+        };
     }
 
     private void validate(Context c, List<Token> rpn)
@@ -1973,27 +1939,23 @@ public class Expression
 
         for (Token token : rpn)
         {
-            switch (token.type)
-            {
-                case UNARY_OPERATOR:
-                    if (stack.topInt() < 1)
-                    {
+            switch (token.type) {
+                case UNARY_OPERATOR -> {
+                    if (stack.topInt() < 1) {
                         throw new ExpressionException(c, this, token, "Missing parameter(s) for operator " + token);
                     }
-                    break;
-                case OPERATOR:
-                    if (stack.topInt() < 2)
-                    {
-                        if (token.surface.equals(";"))
-                        {
+                }
+                case OPERATOR -> {
+                    if (stack.topInt() < 2) {
+                        if (token.surface.equals(";")) {
                             throw new ExpressionException(c, this, token, "Empty expression found for ';'");
                         }
                         throw new ExpressionException(c, this, token, "Missing parameter(s) for operator " + token);
                     }
                     // pop the operator's 2 parameters and add the result
                     stack.set(stack.size() - 1, stack.topInt() - 2 + 1);
-                    break;
-                case FUNCTION:
+                }
+                case FUNCTION -> {
                     //ILazyFunction f = functions.get(token.surface);// don't validate global - userdef functions
                     //int numParams = stack.pop();
                     //if (f != null && !f.numParamsVaries() && numParams != f.getNumParams())
@@ -2004,18 +1966,14 @@ public class Expression
                     // due to unpacking, all functions can have variable number of arguments
                     // we will be checking that at runtime.
                     // TODO try analyze arguments and assess if its possible that they are static
-                    if (stack.size() <= 0)
-                    {
+                    if (stack.size() <= 0) {
                         throw new ExpressionException(c, this, token, "Too many function calls, maximum scope exceeded");
                     }
                     // push the result of the function
                     stack.set(stack.size() - 1, stack.topInt() + 1);
-                    break;
-                case OPEN_PAREN:
-                    stack.push(0);
-                    break;
-                default:
-                    stack.set(stack.size() - 1, stack.topInt() + 1);
+                }
+                case OPEN_PAREN -> stack.push(0);
+                default -> stack.set(stack.size() - 1, stack.topInt() + 1);
             }
         }
 

src/main/java/carpet/script/Module.java

@@ -40,7 +40,7 @@ public record Module(String name, String code, boolean library)
      *
      * @param scriptName A {@link String} being the name of the script. The extension will be autocompleted
      * @param isLibrary  A {@link boolean} indicating whether or not the script is a library
-     * @return The created {@link BundledModule}
+     * @return The created BundledModule
      */
     public static Module carpetNative(String scriptName, boolean isLibrary)
     {
@@ -53,7 +53,7 @@ public record Module(String name, String code, boolean library)
      * @param path       A {@link String} being the path to the directory where the app is located.
      * @param scriptName A {@link String} being the name of the script. The extension will be autocompleted
      * @param isLibrary  A {@link boolean} indicating whether or not the script is a library
-     * @return The created {@link BundledModule}
+     * @return The created BundledModule
      * @see #fromJarPathWithCustomName(String, String, boolean)
      */
     public static Module fromJarPath(String path, String scriptName, boolean isLibrary)
@@ -90,7 +90,7 @@ public record Module(String name, String code, boolean library)
     public static Tag getData(Module module, ScriptServer scriptServer)
     {
         Path dataFile = resolveResource(module, scriptServer);
-        if (dataFile == null || !Files.exists(dataFile) || !(Files.isRegularFile(dataFile)))
+        if (dataFile == null || !Files.exists(dataFile) || !Files.isRegularFile(dataFile))
         {
             return null;
         }

src/main/java/carpet/script/ScriptCommand.java

@@ -61,7 +61,7 @@ public class ScriptCommand
 
     static
     {
-        Set<String> allFunctions = (new CarpetExpression(null, "null", null, null)).getExpr().getFunctionNames();
+        Set<String> allFunctions = new CarpetExpression(null, "null", null, null).getExpr().getFunctionNames();
         scarpetFunctions = new TreeSet<>(Expression.none.getFunctionNames());
         APIFunctions = allFunctions.stream().filter(s -> !scarpetFunctions.contains(s)).collect(Collectors.toCollection(TreeSet::new));
     }
@@ -123,7 +123,7 @@ public class ScriptCommand
     }
 
     /**
-     * A method to suggest the available scarpet scripts based off of the current player input and {@link AppStoreManager#APP_STORE_ROOT}
+     * A method to suggest the available scarpet scripts based off of the current player input and AppStoreManager#APP_STORE_ROOT
      * variable.
      */
     private static CompletableFuture<Suggestions> suggestDownloadableApps(

src/main/java/carpet/script/ScriptHost.java

@@ -48,7 +48,7 @@ public abstract class ScriptHost
         {
             randomizers.clear();
         }
-        return randomizers.computeIfAbsent(aLong, Random::new);
+        return randomizers.computeIfAbsent(aLong, seed -> new Random(seed));
     }
 
     public boolean resetRandom(long aLong)
@@ -134,8 +134,7 @@ public abstract class ScriptHost
         return main == null;
     }
 
-    @Nullable
-    public final Module main;
+    public final @Nullable Module main;
 
     @FunctionalInterface
     public interface ErrorSnooper
@@ -234,8 +233,7 @@ public abstract class ScriptHost
 
     protected abstract void runModuleCode(Context c, Module module); // this should be shell out in the executor
 
-    @Nullable
-    public FunctionValue getFunction(String name)
+    public @Nullable FunctionValue getFunction(String name)
     {
         return getFunction(main, name);
     }
@@ -257,8 +255,7 @@ public abstract class ScriptHost
         return ret;
     }
 
-    @Nullable
-    private FunctionValue getFunction(Module module, String name)
+    private @Nullable FunctionValue getFunction(Module module, String name)
     {
         ModuleData local = getModuleData(module);
         FunctionValue ret = local.globalFunctions.get(name); // most uses would be from local scope anyways
@@ -291,8 +288,7 @@ public abstract class ScriptHost
         return target.globalFunctions.get(name);
     }
 
-    @Nullable
-    private ModuleData findModuleDataFromFunctionImports(String name, ModuleData source, int ttl)
+    private @Nullable ModuleData findModuleDataFromFunctionImports(String name, ModuleData source, int ttl)
     {
         if (ttl > 64)
         {
@@ -570,7 +566,7 @@ public abstract class ScriptHost
             return false;
         }
         deprecations.add(feature);
-        DEPRECATION_LOG.warn("App '" + getVisualName() + "' uses '" + feature + "', which is deprecated for removal. Check the docs for a replacement");
+        DEPRECATION_LOG.warn("App '{}' uses '{}', which is deprecated for removal. Check the docs for a replacement", getVisualName(), feature);
         return true;
     }
 

src/main/java/carpet/script/annotation/ListConverter.java

@@ -34,15 +34,13 @@ final class ListConverter<T> implements ValueConverter<List<T>>
         return (allowSingletonCreation ? itemConverter.getTypeName() + " or " : "") + "list of " + itemConverter.getTypeName() + "s";
     }
 
-    @Nullable
     @Override
-    public List<T> convert(Value value, @Nullable Context context)
+    public @Nullable List<T> convert(Value value, @Nullable Context context)
     {
-        return value instanceof ListValue ? convertListValue((ListValue) value, context) : allowSingletonCreation ? convertSingleton(value, context) : null;
+        return value instanceof final ListValue listValue ? convertListValue(listValue, context) : allowSingletonCreation ? convertSingleton(value, context) : null;
     }
 
-    @Nullable
-    private List<T> convertListValue(ListValue values, @Nullable Context context)
+    private @Nullable List<T> convertListValue(ListValue values, @Nullable Context context)
     {
         List<T> list = new ArrayList<>(values.getItems().size());
         for (Value value : values)
@@ -57,8 +55,7 @@ final class ListConverter<T> implements ValueConverter<List<T>>
         return list;
     }
 
-    @Nullable
-    private List<T> convertSingleton(Value val, @Nullable Context context)
+    private @Nullable List<T> convertSingleton(Value val, @Nullable Context context)
     {
         T converted = itemConverter.convert(val, context);
         if (converted == null)

src/main/java/carpet/script/annotation/MapConverter.java

@@ -42,9 +42,9 @@ class MapConverter<K, V> implements ValueConverter<Map<K, V>>
     public Map<K, V> convert(Value value, @Nullable Context context)
     {
         Map<K, V> result = new HashMap<>();
-        if (value instanceof MapValue)
+        if (value instanceof MapValue mapValue)
         {
-            for (Entry<Value, Value> entry : ((MapValue) value).getMap().entrySet())
+            for (Entry<Value, Value> entry : mapValue.getMap().entrySet())
             {
                 K key = keyConverter.convert(entry.getKey(), context);
                 V val = valueConverter.convert(entry.getValue(), context);
@@ -106,17 +106,14 @@ class MapConverter<K, V> implements ValueConverter<Map<K, V>>
             return acceptMultiParam;
         }
 
-        @Nullable
         @Override
-        public Map<K, V> convert(Value value, @Nullable Context context) {
+        public @Nullable Map<K, V> convert(Value value, @Nullable Context context) {
             return value instanceof MapValue ? super.convert(value, context)
-                    : value instanceof ListValue ? convertList(((ListValue)value).getItems(), context)
+                    : value instanceof final ListValue listValue ? convertList(listValue.getItems(), context)
                             : null; // Multiparam mode can only be used in evalAndConvert 
         }
 
-
-        @Nullable
-        private Map<K, V> convertList(List<Value> valueList, @Nullable Context context)
+        private @Nullable Map<K, V> convertList(List<Value> valueList, @Nullable Context context)
         {
             if (valueList.size() % 2 == 1)
             {
@@ -137,9 +134,8 @@ class MapConverter<K, V> implements ValueConverter<Map<K, V>>
             return map;
         }
 
-        @Nullable
         @Override
-        public Map<K, V> checkAndConvert(Iterator<Value> valueIterator, Context context, Context.Type theLazyT)
+        public @Nullable Map<K, V> checkAndConvert(Iterator<Value> valueIterator, Context context, Context.Type theLazyT)
         {
             if (!valueIterator.hasNext())
             {

src/main/java/carpet/script/annotation/OptionalConverter.java

@@ -51,9 +51,8 @@ final class OptionalConverter<R> implements ValueConverter<Optional<R>>
      * @implNote Unlike most other converters, {@link OptionalConverter} will not call this method from
      *           {@link #checkAndConvert(Iterator, Context, Context.Type)} and is only used as a fallback in types that don't support it.
      */
-    @Nullable
     @Override
-    public Optional<R> convert(Value value, @Nullable Context context)
+    public @Nullable Optional<R> convert(Value value, @Nullable Context context)
     {
         if (value.isNull())
         {
@@ -67,9 +66,8 @@ final class OptionalConverter<R> implements ValueConverter<Optional<R>>
         return Optional.of(converted);
     }
 
-    @Nullable
     @Override
-    public Optional<R> checkAndConvert(Iterator<Value> valueIterator, Context context, Context.Type theLazyT)
+    public @Nullable Optional<R> checkAndConvert(Iterator<Value> valueIterator, Context context, Context.Type theLazyT)
     {
         if (!valueIterator.hasNext() || valueIterator.next().isNull())
         {

src/main/java/carpet/script/annotation/Param.java

@@ -146,9 +146,8 @@ public interface Param
          */
         static final ValueConverter<Context> CONTEXT_PROVIDER = new ValueConverter<>()
         {
-            @Nullable
             @Override
-            public String getTypeName()
+            public @Nullable String getTypeName()
             {
                 return null;
             }
@@ -178,9 +177,8 @@ public interface Param
          */
         static final ValueConverter<Context.Type> CONTEXT_TYPE_PROVIDER = new ValueConverter<>()
         {
-            @Nullable
             @Override
-            public String getTypeName()
+            public @Nullable String getTypeName()
             {
                 return null;
             }

src/main/java/carpet/script/annotation/SimpleTypeConverter.java

@@ -106,10 +106,9 @@ public final class SimpleTypeConverter<T extends Value, R> implements ValueConve
         return (SimpleTypeConverter<Value, R>) byResult.get(outputType);
     }
 
-    @Nullable
     @Override
     @SuppressWarnings("unchecked") // more than checked. not using class.cast because then "method is too big" for inlining, because javac is useless
-    public R convert(Value value, @Nullable Context context)                                                          // and adds millions of casts. This one is even removed
+    public @Nullable R convert(Value value, @Nullable Context context)                                                          // and adds millions of casts. This one is even removed
     {
         return valueClass.isInstance(value) ? converter.apply((T)value, context) : null;
     }

src/main/java/carpet/script/annotation/ValueCaster.java

@@ -80,10 +80,9 @@ public final class ValueCaster<R> implements ValueConverter<R> // R always exten
         return (ValueCaster<R>) byResult.get(outputType);
     }
 
-    @Nullable
     @Override
     @SuppressWarnings("unchecked") // more than checked, see SimpleTypeConverter#converter for reasoning
-    public R convert(Value value, @Nullable Context context)
+    public @Nullable R convert(Value value, @Nullable Context context)
     {
         if (!outputType.isInstance(value))
         {

src/main/java/carpet/script/annotation/ValueConverter.java

@@ -77,9 +77,8 @@ public interface ValueConverter<R>
      * @return A converted value
      * @deprecated Calling this method instead of {@link #convert(Value, Context)} may not return values for some converters
      */
-    @Nullable
     @Deprecated(forRemoval = true)
-    default R convert(Value value)
+    default @Nullable R convert(Value value)
     {
         try
         {
@@ -211,8 +210,7 @@ public interface ValueConverter<R>
      * @implNote This method's default implementation runs the {@link #convert(Value, Context)} function in the next {@link Value} ignoring {@link Context} and
      *           {@code theLazyT}.
      */
-    @Nullable
-    default R checkAndConvert(Iterator<Value> valueIterator, Context context, Context.Type contextType)
+    default @Nullable R checkAndConvert(Iterator<Value> valueIterator, Context context, Context.Type contextType)
     {
         return !valueIterator.hasNext() ? null : convert(valueIterator.next(), context);
     }

src/main/java/carpet/script/api/Auxiliary.java

@@ -207,7 +207,7 @@ public class Auxiliary
             Vec3 vec = locator.vec;
             if (player == null)
             {
-                for (ServerPlayer p : (world.players()))
+                for (ServerPlayer p : world.players())
                 {
                     world.sendParticles(p, particle, true, true, vec.x, vec.y, vec.z, count,
                             spread, spread, spread, speed);
@@ -346,7 +346,7 @@ public class Auxiliary
             }
 
             ShapeDispatcher.sendShape(
-                    (playerTargets.isEmpty()) ? cc.level().players() : playerTargets,
+                    playerTargets.isEmpty() ? cc.level().players() : playerTargets,
                     shapes, cc.registryAccess()
             );
             return Value.TRUE;
@@ -469,8 +469,8 @@ public class Auxiliary
             {
                 return Value.FALSE;
             }
-            Tag source = ((NBTSerializableValue) (NBTSerializableValue.fromValue(lv.get(0)))).getTag();
-            Tag match = ((NBTSerializableValue) (NBTSerializableValue.fromValue(lv.get(1)))).getTag();
+            Tag source = ((NBTSerializableValue) NBTSerializableValue.fromValue(lv.get(0))).getTag();
+            Tag match = ((NBTSerializableValue) NBTSerializableValue.fromValue(lv.get(1))).getTag();
             return BooleanValue.of(NbtUtils.compareNbt(match, source, numParam == 2 || lv.get(2).getBoolean()));
         });
 
@@ -560,39 +560,30 @@ public class Auxiliary
             });
             Function<Component, Packet<?>> packetGetter = null;
             String actionString = lv.get(1).getString().toLowerCase(Locale.ROOT);
-            switch (actionString)
-            {
-                case "title":
+            switch (actionString) {
+                case "title" -> {
                     packetGetter = ClientboundSetTitleTextPacket::new;
-                    if (lv.size() < 3)
-                    {
+                    if (lv.size() < 3) {
                         throw new InternalExpressionException("Third argument of 'display_title' must be present except for 'clear' type");
                     }
-
-                    break;
-                case "subtitle":
+                }
+                case "subtitle" -> {
                     packetGetter = ClientboundSetSubtitleTextPacket::new;
-                    if (lv.size() < 3)
-                    {
+                    if (lv.size() < 3) {
                         throw new InternalExpressionException("Third argument of 'display_title' must be present except for 'clear' type");
                     }
-
-                    break;
-                case "actionbar":
+                }
+                case "actionbar" -> {
                     packetGetter = ClientboundSetActionBarTextPacket::new;
-                    if (lv.size() < 3)
-                    {
+                    if (lv.size() < 3) {
                         throw new InternalExpressionException("Third argument of 'display_title' must be present except for 'clear' type");
                     }
-
-                    break;
-                case "clear":
-                    packetGetter = x -> new ClientboundClearTitlesPacket(true); // resetting default fade
-                    break;
-                case "player_list_header", "player_list_footer":
-                    break;
-                default:
-                    throw new InternalExpressionException("'display_title' requires 'title', 'subtitle', 'actionbar', 'player_list_header', 'player_list_footer' or 'clear' as second argument");
+                }
+                case "clear" -> packetGetter = x -> new ClientboundClearTitlesPacket(true); // resetting default fade
+                case "player_list_header", "player_list_footer" -> {
+                }
+                default ->
+                        throw new InternalExpressionException("'display_title' requires 'title', 'subtitle', 'actionbar', 'player_list_header', 'player_list_footer' or 'clear' as second argument");
             }
             Component title;
             boolean soundsTrue = false;
@@ -915,7 +906,7 @@ public class Auxiliary
             if (lv.size() == 1)
             {
                 res = lv.get(0);
-                CarpetScriptServer.LOG.info(res.getString());
+                CarpetScriptServer.LOG.info("{}", res.getString());
             }
             else if (lv.size() == 2)
             {
@@ -923,11 +914,11 @@ public class Auxiliary
                 res = lv.get(1);
                 switch (level)
                 {
-                    case "debug" -> CarpetScriptServer.LOG.debug(res.getString());
-                    case "warn" -> CarpetScriptServer.LOG.warn(res.getString());
-                    case "info" -> CarpetScriptServer.LOG.info(res.getString());
+                    case "debug" -> CarpetScriptServer.LOG.debug("{}", res.getString());
+                    case "warn" -> CarpetScriptServer.LOG.warn("{}", res.getString());
+                    case "info" -> CarpetScriptServer.LOG.info("{}", res.getString());
                     // Somehow issue deprecation
-                    case "fatal", "error" -> CarpetScriptServer.LOG.error(res.getString());
+                    case "fatal", "error" -> CarpetScriptServer.LOG.error("{}", res.getString());
                     default -> throw new InternalExpressionException("Unknown log level for 'logger': " + level);
                 }
             }
@@ -1386,8 +1377,7 @@ public class Auxiliary
         }
     }
 
-    @Nullable
-    private static <T> Stat<T> getStat(StatType<T> type, Identifier id)
+    private static <T> @Nullable Stat<T> getStat(StatType<T> type, Identifier id)
     {
         T key = type.getRegistry().getValue(id);
         if (key == null || !type.contains(key))

src/main/java/carpet/script/api/Inventories.java

@@ -365,7 +365,7 @@ public class Inventories
                 amount = (int) NumericValue.asNumber(lv.get(inventoryLocator.offset() + 1)).getLong();
             }
             // not enough
-            if (((amount == 1) && (!inventoryLocator.inventory().hasAnyOf(Set.of(searchItem.getItem()))))
+            if (((amount == 1) && !inventoryLocator.inventory().hasAnyOf(Set.of(searchItem.getItem())))
                     || (inventoryLocator.inventory().countItem(searchItem.getItem()) < amount))
             {
                 return Value.FALSE;

src/main/java/carpet/script/api/Scoreboards.java

@@ -170,7 +170,7 @@ public class Scoreboards
                 }
                 Vanilla.Scoreboard_getObjectivesByCriterion(scoreboard).get(objective.getCriteria()).remove(objective);
                 Vanilla.Objective_setCriterion(objective, criterion);
-                (Vanilla.Scoreboard_getObjectivesByCriterion(scoreboard).computeIfAbsent(criterion, cr -> Lists.newArrayList())).add(objective);
+                Vanilla.Scoreboard_getObjectivesByCriterion(scoreboard).computeIfAbsent(criterion, cr -> Lists.newArrayList()).add(objective);
                 scoreboard.onObjectiveAdded(objective);
                 return Value.FALSE;
             }
@@ -215,7 +215,7 @@ public class Scoreboards
                         }
                         Vanilla.Scoreboard_getObjectivesByCriterion(scoreboard).get(objective.getCriteria()).remove(objective);
                         Vanilla.Objective_setCriterion(objective, criterion);
-                        (Vanilla.Scoreboard_getObjectivesByCriterion(scoreboard).computeIfAbsent(criterion, cr -> Lists.newArrayList())).add(objective);
+                        Vanilla.Scoreboard_getObjectivesByCriterion(scoreboard).computeIfAbsent(criterion, cr -> Lists.newArrayList()).add(objective);
                         scoreboard.onObjectiveAdded(objective);
                         return Value.TRUE;
                     }
@@ -585,7 +585,7 @@ public class Scoreboards
                 case "color" -> {
                     if (propertyValue == null)
                     {
-                        BossEvent.BossBarColor color = (bossBar).getColor();
+                        BossEvent.BossBarColor color = bossBar.getColor();
                         return color == null ? Value.NULL : StringValue.of(color.getName());
                     }
                     BossEvent.BossBarColor color = ((StringRepresentable.EnumCodec<BossEvent.BossBarColor>)BossEvent.BossBarColor.CODEC).byName(propertyValue.getString());

src/main/java/carpet/script/api/WorldAccess.java

@@ -348,7 +348,7 @@ public class WorldAccess
                     {
                         status = PoiManager.Occupancy.HAS_SPACE;
                     }
-                    else if (!("any".equals(statusString)))
+                    else if (!"any".equals(statusString))
                     {
                         throw new InternalExpressionException(
                                 "Incorrect POI occupation status " + status + " use `any`, " + "`occupied` or `available`"
@@ -600,7 +600,7 @@ public class WorldAccess
         });
 
         expression.addContextFunction("loaded", -1, (c, t, lv) ->
-                BooleanValue.of((((CarpetContext) c).level().hasChunkAt(BlockArgument.findIn((CarpetContext) c, lv, 0).block.getPos()))));
+                BooleanValue.of(((CarpetContext) c).level().hasChunkAt(BlockArgument.findIn((CarpetContext) c, lv, 0).block.getPos())));
 
         // Deprecated, use loaded_status as more indicative
         expression.addContextFunction("loaded_ep", -1, (c, t, lv) ->
@@ -1085,9 +1085,7 @@ public class WorldAccess
             ServerExplosion serverExplosion = new ServerExplosion(cc.level(), source, null, null, pos, powah, createFire, mode)
             {
                 @Override
-                @Nullable
-                public
-                LivingEntity getIndirectSourceEntity()
+                public @Nullable LivingEntity getIndirectSourceEntity()
                 {
                     return theAttacker;
                 }
@@ -1481,7 +1479,7 @@ public class WorldAccess
                 }
                 catch (NullPointerException npe)
                 {
-                    CarpetScriptServer.LOG.error("Failed to detect structure: " + reg.getKey(str));
+                    CarpetScriptServer.LOG.error("Failed to detect structure: {}", reg.getKey(str));
                     start = null;
                 }
 
@@ -1491,7 +1489,7 @@ public class WorldAccess
                 }
 
                 Value key = NBTSerializableValue.nameFromRegistryId(reg.getKey(str));
-                ret.put(key, (!needSize) ? Value.NULL : ValueConversions.of(start, cc.registryAccess()));
+                ret.put(key, !needSize ? Value.NULL : ValueConversions.of(start, cc.registryAccess()));
             }
             return MapValue.wrap(ret);
         });
@@ -1735,8 +1733,8 @@ public class WorldAccess
     }
 
 
-    @Nullable static DensitySamplerSet samplersCache = null;
-    @Nullable static ServerLevel samplerLevel = null;
+    private static @Nullable DensitySamplerSet samplersCache = null;
+    private static @Nullable ServerLevel samplerLevel = null;
 
     public static double sampleNoise(ServerLevel level, String what, BlockPos pos)
     {

src/main/java/carpet/script/argument/BlockArgument.java

@@ -19,7 +19,7 @@ import org.jspecify.annotations.Nullable;
 public class BlockArgument extends Argument
 {
     public final BlockValue block;
-    @Nullable public final String replacement;
+    public final @Nullable String replacement;
 
     private BlockArgument(BlockValue b, int o)
     {
@@ -68,14 +68,14 @@ public class BlockArgument extends Argument
             {
                 return new BlockArgument(BlockValue.fromString(v1.getString(), c.level()), 1 + offset);
             }
-            if (v1 instanceof BlockValue)
+            if (v1 instanceof final BlockValue blockValue)
             {
-                return new BlockArgument(((BlockValue) v1), 1 + offset);
+                return new BlockArgument(blockValue, 1 + offset);
             }
             BlockPos pos = c.origin();
-            if (v1 instanceof ListValue)
+            if (v1 instanceof final ListValue listValue)
             {
-                List<Value> args = ((ListValue) v1).getItems();
+                List<Value> args = listValue.getItems();
                 int xpos = (int) NumericValue.asNumber(args.get(0)).getLong();
                 int ypos = (int) NumericValue.asNumber(args.get(1)).getLong();
                 int zpos = (int) NumericValue.asNumber(args.get(2)).getLong();

src/main/java/carpet/script/argument/FileArgument.java

@@ -202,8 +202,7 @@ public class FileArgument
         return host.resolveScriptFile(suffix);
     }
 
-    @Nullable
-    private Path toPath(@Nullable Module module)
+    private @Nullable Path toPath(@Nullable Module module)
     {
         if (!isShared && module == null)
         {
@@ -245,8 +244,7 @@ public class FileArgument
         }
     }
 
-    @Nullable
-    private Path moduleRootPath(@Nullable Module module)
+    private @Nullable Path moduleRootPath(@Nullable Module module)
     {
         return !isShared && module == null
                 ? null
@@ -294,8 +292,7 @@ public class FileArgument
         return true;
     }
 
-    @Nullable
-    public Stream<Path> listFiles(Module module)
+    public @Nullable Stream<Path> listFiles(Module module)
     {
         Path dir = toPath(module);
         if (dir == null || !Files.exists(dir))
@@ -316,8 +313,7 @@ public class FileArgument
         }
     }
 
-    @Nullable
-    public Stream<String> listFolder(Module module)
+    public @Nullable Stream<String> listFolder(Module module)
     {
         Stream<String> strings;
         try (Stream<Path> result = listFiles(module))
@@ -407,8 +403,7 @@ public class FileArgument
         return true;
     }
 
-    @Nullable
-    public Tag getNbtData(Module module) // aka getData
+    public @Nullable Tag getNbtData(Module module) // aka getData
     {
         try
         {
@@ -430,8 +425,7 @@ public class FileArgument
 
     //copied private method from net.minecraft.nbt.NbtIo.read()
     // to read non-compound tags - these won't be compressed
-    @Nullable
-    public static Tag readTag(Path path)
+    public static @Nullable Tag readTag(Path path)
     {
         try
         {
@@ -567,8 +561,7 @@ public class FileArgument
         }
     }
 
-    @Nullable
-    public List<String> listFile(Module module)
+    public @Nullable List<String> listFile(Module module)
     {
         try
         {
@@ -615,8 +608,7 @@ public class FileArgument
         }
     }
 
-    @Nullable
-    public JsonElement readJsonFile(Module module)
+    public @Nullable JsonElement readJsonFile(Module module)
     {
         try
         {

src/main/java/carpet/script/argument/FunctionArgument.java

@@ -96,9 +96,9 @@ public class FunctionArgument extends Argument
             throw CommandArgument.error("Function has empty spec");
         }
         Value first = params.get(0);
-        if (first instanceof FunctionValue)
+        if (first instanceof final FunctionValue functionValue)
         {
-            function = (FunctionValue) first;
+            function = functionValue;
         }
         else
         {

src/main/java/carpet/script/argument/Vector3Argument.java

@@ -22,8 +22,7 @@ public class Vector3Argument extends Argument
     public final double yaw;
     public final double pitch;
     public boolean fromBlock = false;
-    @Nullable
-    public Entity entity = null;
+    public @Nullable Entity entity = null;
 
     private Vector3Argument(Vec3 v, int o)
     {
@@ -68,18 +67,18 @@ public class Vector3Argument extends Argument
         try
         {
             Value v1 = params.next();
-            if (v1 instanceof BlockValue)
+            if (v1 instanceof final BlockValue blockValue)
             {
-                return (new Vector3Argument(Vec3.atCenterOf(((BlockValue) v1).getPos()), 1 + offset)).fromBlock();
+                return new Vector3Argument(Vec3.atCenterOf(blockValue.getPos()), 1 + offset).fromBlock();
             }
-            if (optionalEntity && v1 instanceof EntityValue)
+            if (optionalEntity && v1 instanceof final EntityValue entityValue)
             {
-                Entity e = ((EntityValue) v1).getEntity();
+                Entity e = entityValue.getEntity();
                 return new Vector3Argument(e.position(), 1 + offset).withEntity(e);
             }
-            if (v1 instanceof ListValue)
+            if (v1 instanceof final ListValue listValue)
             {
-                List<Value> args = ((ListValue) v1).getItems();
+                List<Value> args = listValue.getItems();
                 Vec3 pos = new Vec3(
                         NumericValue.asNumber(args.get(0)).getDouble(),
                         NumericValue.asNumber(args.get(1)).getDouble(),

src/main/java/carpet/script/command/CommandArgument.java

@@ -321,8 +321,7 @@ public abstract class CommandArgument
     }
 
     protected String suffix;
-    @Nullable
-    protected Collection<String> examples;
+    protected @Nullable Collection<String> examples;
     protected boolean needsMatching;
     protected boolean caseSensitive = true;
     protected Function<String, SuggestionProvider<CommandSourceStack>> suggestionProvider;
@@ -385,11 +384,11 @@ public abstract class CommandArgument
                 throw error("Attempted to provide 'suggest' list while 'suggester' is present" + " for custom type " + suffix);
             }
             Value suggestionValue = config.get("suggest");
-            if (!(suggestionValue instanceof ListValue))
+            if (!(suggestionValue instanceof final ListValue listValue))
             {
                 throw error("Argument suggestions needs to be a list" + " for custom type " + suffix);
             }
-            examples = ((ListValue) suggestionValue).getItems().stream()
+            examples = listValue.getItems().stream()
                     .map(Value::getString)
                     .collect(Collectors.toSet());
             if (!examples.isEmpty())
@@ -437,11 +436,11 @@ public abstract class CommandArgument
             args.add(MapValue.wrap(params));
             args.addAll(customSuggester.args);
             Value response = host.handleCommand(context.getSource(), customSuggester.function, args);
-            if (!(response instanceof ListValue))
+            if (!(response instanceof final ListValue listValue))
             {
                 throw error("Custom suggester should return a list of options" + " for custom type " + suffix);
             }
-            Collection<String> res = ((ListValue) response).getItems().stream().map(Value::getString).collect(Collectors.toList());
+            Collection<String> res = listValue.getItems().stream().map(Value::getString).collect(Collectors.toList());
             currentSection.run();
             return res;
         }
@@ -504,12 +503,12 @@ public abstract class CommandArgument
             if (config.containsKey("options"))
             {
                 Value optionsValue = config.get("options");
-                if (!(optionsValue instanceof ListValue))
+                if (!(optionsValue instanceof final ListValue listValue))
                 {
                     throw error("Custom string type requires options passed as a list" + " for custom type " + suffix);
                 }
-                validOptions = ((ListValue) optionsValue).getItems().stream()
-                        .map(v -> caseSensitive ? v.getString() : (v.getString().toLowerCase(Locale.ROOT)))
+                validOptions = listValue.getItems().stream()
+                        .map(v -> caseSensitive ? v.getString() : v.getString().toLowerCase(Locale.ROOT))
                         .collect(Collectors.toSet());
             }
         }
@@ -879,11 +878,11 @@ public abstract class CommandArgument
             if (config.containsKey("options"))
             {
                 Value optionsValue = config.get("options");
-                if (!(optionsValue instanceof ListValue))
+                if (!(optionsValue instanceof final ListValue listValue))
                 {
                     throw error("Custom sting type requires options passed as a list" + " for custom type " + suffix);
                 }
-                validOptions = ((ListValue) optionsValue).getItems().stream().map(v -> Identifier.parse(v.getString())).collect(Collectors.toSet());
+                validOptions = listValue.getItems().stream().map(v -> Identifier.parse(v.getString())).collect(Collectors.toSet());
             }
         }
     }
@@ -1005,6 +1004,7 @@ public abstract class CommandArgument
         }
 
         private String restrict;
+        @SuppressWarnings("DoubleBraceInitialization")
         private static final Map<String, ContainerIds> RESTRICTED_CONTAINERS = new HashMap<>()
         {{
             int i;
@@ -1293,8 +1293,8 @@ public abstract class CommandArgument
         protected Supplier<CommandArgument> factory(MinecraftServer server)
         {
             return argumentTypeSupplier != null
-                    ? (() -> new VanillaUnconfigurableArgument(getTypeSuffix(), argumentTypeSupplier, valueExtractor, providesExamples))
-                    : (() -> new VanillaUnconfigurableArgument(getTypeSuffix(), argumentTypeSupplierEx, valueExtractor, providesExamples, server));
+                    ? () -> new VanillaUnconfigurableArgument(getTypeSuffix(), argumentTypeSupplier, valueExtractor, providesExamples)
+                    : () -> new VanillaUnconfigurableArgument(getTypeSuffix(), argumentTypeSupplierEx, valueExtractor, providesExamples, server);
         }
     }
 }

src/main/java/carpet/script/command/CommandToken.java

@@ -22,8 +22,7 @@ public class CommandToken implements Comparable<CommandToken>
 {
     public final String surface;
     public final boolean isArgument;
-    @Nullable
-    public final CommandArgument type;
+    public final @Nullable CommandArgument type;
 
     private CommandToken(String surface, @Nullable CommandArgument type)
     {
@@ -32,8 +31,7 @@ public class CommandToken implements Comparable<CommandToken>
         isArgument = type != null;
     }
 
-    @Nullable
-    public static CommandToken getToken(String source, CarpetScriptHost host)
+    public static @Nullable CommandToken getToken(String source, CarpetScriptHost host)
     {
         // todo add more type checking and return null
         if (!source.startsWith("<"))

src/main/java/carpet/script/exception/ExitStatement.java

@@ -7,8 +7,7 @@ import org.jspecify.annotations.Nullable;
 /* Exception thrown to terminate execution mid expression (aka return statement) */
 public class ExitStatement extends StacklessRuntimeException
 {
-    @Nullable
-    public final Value retval;
+    public final @Nullable Value retval;
 
     public ExitStatement(@Nullable Value value)
     {

src/main/java/carpet/script/exception/Throwables.java

@@ -11,8 +11,7 @@ import java.util.Map;
 public class Throwables
 {
     private final String id;
-    @Nullable
-    private final Throwables parent;
+    private final @Nullable Throwables parent;
 
     private static final Map<String, Throwables> byId = new HashMap<>();
 

src/main/java/carpet/script/external/Vanilla.java

@@ -17,7 +17,10 @@ import com.mojang.brigadier.CommandDispatcher;
 import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;
 import net.fabricmc.loader.api.FabricLoader;
 import net.fabricmc.loader.api.ModContainer;
+import net.minecraft.commands.CommandResultCallback;
+import net.minecraft.commands.CommandSigningContext;
 import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.arguments.EntityAnchorArgument;
 import net.minecraft.commands.arguments.blocks.BlockInput;
 import net.minecraft.core.BlockPos;
 import net.minecraft.nbt.CompoundTag;
@@ -31,6 +34,7 @@ import net.minecraft.server.level.ServerPlayerGameMode;
 import net.minecraft.server.level.Ticket;
 import net.minecraft.server.permissions.PermissionSet;
 import net.minecraft.tags.TagKey;
+import net.minecraft.util.TaskChainer;
 import net.minecraft.world.Container;
 import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.LivingEntity;
@@ -64,6 +68,7 @@ import net.minecraft.world.scores.criteria.ObjectiveCriteria;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.OptionalLong;
 import java.util.function.BooleanSupplier;
 import java.util.function.Predicate;
 
@@ -139,6 +144,10 @@ public class Vanilla
         return CarpetSettings.runPermissionLevel;
     }
 
+    public static void CommandSourceStack_setupPrivates(CommandSourceStack css, boolean bl, CommandResultCallback commandResultCallback, EntityAnchorArgument.Anchor anchor, CommandSigningContext commandSigningContext, TaskChainer taskChainer) {
+        ((CommandSourceStackInterface) css).setupPrivates(bl, commandResultCallback, anchor, commandSigningContext, taskChainer);
+    };
+
     public static int [] MinecraftServer_getReleaseTarget(MinecraftServer server)
     {
         return CarpetSettings.releaseTarget;

src/main/java/carpet/script/language/Arithmetic.java

@@ -58,8 +58,8 @@ public class Arithmetic
         expression.addMathematicalUnaryFunction("cot", d -> 1.0 / Math.tan(Math.toRadians(d))); // Formula: cot(x) = cos(x) / sin(x) = 1 / tan(x)
         expression.addMathematicalUnaryFunction("acot", d -> Math.toDegrees(Math.atan(1.0 / d)));// Formula: acot(x) = atan(1/x)
         expression.addMathematicalUnaryFunction("coth", d -> 1.0 / Math.tanh(d));                // Formula: coth(x) = 1 / tanh(x)
-        expression.addMathematicalUnaryFunction("asinh", d -> Math.log(d + (Math.sqrt(Math.pow(d, 2) + 1))));  // Formula: asinh(x) = ln(x + sqrt(x^2 + 1))
-        expression.addMathematicalUnaryFunction("acosh", d -> Math.log(d + (Math.sqrt(Math.pow(d, 2) - 1))));  // Formula: acosh(x) = ln(x + sqrt(x^2 - 1))
+        expression.addMathematicalUnaryFunction("asinh", d -> Math.log(d + Math.sqrt(Math.pow(d, 2) + 1)));  // Formula: asinh(x) = ln(x + sqrt(x^2 + 1))
+        expression.addMathematicalUnaryFunction("acosh", d -> Math.log(d + Math.sqrt(Math.pow(d, 2) - 1)));  // Formula: acosh(x) = ln(x + sqrt(x^2 - 1))
         expression.addMathematicalUnaryFunction("atanh", d ->                                       // Formula: atanh(x) = 0.5*ln((1 + x)/(1 - x))
         {
             if (Math.abs(d) > 1 || Math.abs(d) == 1)

src/main/java/carpet/script/language/Operators.java

@@ -14,6 +14,7 @@ import carpet.script.value.ListValue;
 import carpet.script.value.MapValue;
 import carpet.script.value.NumericValue;
 import carpet.script.value.Value;
+import com.google.common.collect.ImmutableMap;
 
 import java.util.Comparator;
 import java.util.HashMap;
@@ -23,21 +24,19 @@ import java.util.Map;
 
 public class Operators
 {
-    public static final Map<String, Integer> precedence = new HashMap<>()
-    {{
-        put("attribute~:", 80);
-        put("unary+-!...", 60);
-        put("exponent^", 40);
-        put("multiplication*/%", 30);
-        put("addition+-", 20);
-        put("compare>=><=<", 10);
-        put("equal==!=", 7);
-        put("and&&", 5);
-        put("or||", 4);
-        put("assign=<>", 3);
-        put("def->", 2);
-        put("nextop;", 1);
-    }};
+    public static final Map<String, Integer> precedence = ImmutableMap.<String, Integer>builder()
+            .put("attribute~:", 80)
+            .put("unary+-!...", 60)
+            .put("exponent^", 40)
+            .put("multiplication*/%", 30)
+            .put("addition+-", 20)
+            .put("compare>=><=<", 10)
+            .put("equal==!=", 7)
+            .put("and&&", 5)
+            .put("or||", 4)
+            .put("assign=<>", 3)
+            .put("def->", 2)
+            .put("nextop;", 1).build();
 
     public static void apply(Expression expression)
     {
@@ -149,7 +148,7 @@ public class Operators
         expression.addLazyBinaryOperator("&&", "and", precedence.get("and&&"), false, true, t -> Context.Type.BOOLEAN, (c, t, lv1, lv2) ->
         { // todo check how is optimizations going
             Value v1 = lv1.evalValue(c, Context.BOOLEAN);
-            return v1.getBoolean() ? lv2 : ((cc, tt) -> v1);
+            return v1.getBoolean() ? lv2 : (cc, tt) -> v1;
         }, (c, t, lv) -> {
             int last = lv.size() - 1;
             if (last == -1)
@@ -184,7 +183,7 @@ public class Operators
         expression.addLazyBinaryOperator("||", "or", precedence.get("or||"), false, true, t -> Context.Type.BOOLEAN, (c, t, lv1, lv2) ->
         {
             Value v1 = lv1.evalValue(c, Context.BOOLEAN);
-            return v1.getBoolean() ? ((cc, tt) -> v1) : lv2;
+            return v1.getBoolean() ? (cc, tt) -> v1 : lv2;
         }, (c, t, lv) -> {
             int last = lv.size() - 1;
             if (last == -1)
@@ -379,7 +378,7 @@ public class Operators
                     return (cc, tt) -> Value.NULL;
                 }
                 Value address = lcv.address();
-                if (!(container.put(address, v2)))
+                if (!container.put(address, v2))
                 {
                     return (cc, tt) -> Value.NULL;
                 }

src/main/java/carpet/script/language/Sys.java

@@ -493,7 +493,7 @@ public class Sys
                 c.host.scriptServer().systemGlobals.computeIfAbsent(key, k -> lv.get(1).evalValue(c));
             }
             Value res = c.host.scriptServer().systemGlobals.get(key);
-            return res == null ? LazyValue.NULL : ((cc, tt) -> res);
+            return res == null ? LazyValue.NULL : (cc, tt) -> res;
         });
 
         expression.addContextFunction("system_variable_set", 2, (c, t, lv) ->

src/main/java/carpet/script/language/Threading.java

@@ -41,7 +41,7 @@ public class Threading
 
 
         expression.addContextFunction("task_count", -1, (c, t, lv) ->
-                (!lv.isEmpty()) ? new NumericValue(c.host.taskCount(lv.get(0))) : new NumericValue(c.host.taskCount()));
+                !lv.isEmpty() ? new NumericValue(c.host.taskCount(lv.get(0))) : new NumericValue(c.host.taskCount()));
 
         expression.addUnaryFunction("task_value", v ->
         {
@@ -174,7 +174,7 @@ public class Threading
                 throw new InternalExpressionException("'task_await' requires a coroutine task value");
             }
             Value ret = thread.next();
-            return ret == Value.EOL ? ((cc, tt) -> Value.NULL) : ((cc, tt) -> ret);
+            return ret == Value.EOL ? (cc, tt) -> Value.NULL : (cc, tt) -> ret;
         });
 
         expression.addLazyFunction("task_ready", 1, (c, t, lv) ->

src/main/java/carpet/script/utils/AppStoreManager.java

@@ -71,8 +71,7 @@ public class AppStoreManager
     public static class StoreNode
     {
         public String name;
-        @Nullable
-        public StoreNode parent;
+        public @Nullable StoreNode parent;
         public Map<String, StoreNode> children;
         public boolean sealed;
         public String value;
@@ -406,7 +405,7 @@ public class AppStoreManager
         {
             throw new InternalExpressionException("Unable to write resource " + target);
         }
-        CarpetScriptServer.LOG.info("Downloaded resource " + target + " from " + contentUrl);
+        CarpetScriptServer.LOG.info("Downloaded resource {} from {}", target, contentUrl);
     }
 
     /**
@@ -417,8 +416,7 @@ public class AppStoreManager
      * @param contentUrl     The full content URL, from {@link #getFullContentUrl(String, StoreNode, CommandSourceStack)}
      * @return A {@link StoreNode} that can be used in an app that came from the provided source
      */
-    @Nullable
-    private static StoreNode getNewStoreNode(CommandSourceStack commandSource, StoreNode originalSource, String sourceString, String contentUrl)
+    private static @Nullable StoreNode getNewStoreNode(CommandSourceStack commandSource, StoreNode originalSource, String sourceString, String contentUrl)
     {
         StoreNode next = originalSource;
         if (sourceString == contentUrl) // External URL (check getFullUrlContent)
@@ -471,7 +469,7 @@ public class AppStoreManager
         {
             throw new InternalExpressionException("Error when installing app dependencies: " + e);
         }
-        CarpetScriptServer.LOG.info("Downloaded app " + target + " from " + contentUrl);
+        CarpetScriptServer.LOG.info("Downloaded app {} from {}", target, contentUrl);
     }
 
     public static class CommandRuntimeException extends RuntimeException {

src/main/java/carpet/script/utils/BiomeInfo.java

@@ -24,6 +24,7 @@ import org.joml.Vector3fc;
 
 public class BiomeInfo
 {
+    @SuppressWarnings("DoubleBraceInitialization")
     public static final Map<String, BiFunction<ServerLevel, Biome, Value>> biomeFeatures = new HashMap<>()
     {{
         put("tags", (w, b) -> ListValue.wrap(w.registryAccess().lookupOrThrow(Registries.BIOME).getTags().filter(p -> p.stream().anyMatch(h -> h.value() == b)).map(ValueConversions::of)));

src/main/java/carpet/script/utils/FeatureGenerator.java

@@ -88,8 +88,7 @@ import org.jspecify.annotations.Nullable;
 
 public class FeatureGenerator
 {
-    @Nullable
-    public static synchronized Boolean plop(String featureName, ServerLevel world, BlockPos pos)
+    public static synchronized @Nullable Boolean plop(String featureName, ServerLevel world, BlockPos pos)
     {
         Function<ServerLevel, Thing> custom = featureMap.get(featureName);
         if (custom != null)
@@ -147,8 +146,7 @@ public class FeatureGenerator
         return null;
     }
 
-    @Nullable
-    public static Structure resolveConfiguredStructure(String name, ServerLevel world, BlockPos pos)
+    public static @Nullable Structure resolveConfiguredStructure(String name, ServerLevel world, BlockPos pos)
     {
         Identifier id = Identifier.parse(name);
         Structure configuredStructureFeature = world.registryAccess().lookupOrThrow(Registries.STRUCTURE).getValue(id);
@@ -365,8 +363,7 @@ public class FeatureGenerator
         );
     }
 
-
-
+    @SuppressWarnings("DoubleBraceInitialization")
     public static final Map<String, Function<ServerLevel, Thing>> featureMap = new HashMap<>()
     {{
 
@@ -551,7 +548,7 @@ public class FeatureGenerator
         }
         catch (Exception booboo)
         {
-            CarpetScriptServer.LOG.error("Unknown Exception while plopping structure: " + booboo, booboo);
+            CarpetScriptServer.LOG.error("Unknown Exception while plopping structure: {}", booboo, booboo);
             return false;
         }
         finally

src/main/java/carpet/script/utils/GlocalFlag.java

@@ -50,8 +50,7 @@ public class GlocalFlag extends ThreadLocal<Boolean>
         return result;
     }
 
-    @Nullable
-    public <T> T runIfEnabled(Supplier<T> action)
+    public <T> @Nullable T runIfEnabled(Supplier<T> action)
     {
         synchronized (this)
         {

src/main/java/carpet/script/utils/ParticleParser.java

@@ -26,8 +26,7 @@ public class ParticleParser
         }
     }
 
-    @Nullable
-    public static ParticleOptions getEffect(@Nullable String name, RegistryAccess lookup)
+    public static @Nullable ParticleOptions getEffect(@Nullable String name, RegistryAccess lookup)
     {
         if (name == null)
         {

src/main/java/carpet/script/utils/ShapeDispatcher.java

@@ -21,6 +21,7 @@ import carpet.script.value.StringValue;
 import carpet.script.value.Value;
 import carpet.script.value.ValueConversions;
 
+import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Sets;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
@@ -236,8 +237,7 @@ public class ShapeDispatcher
     }
 
     // client
-    @Nullable
-    public static ExpiringShape fromTag(CompoundTag tag, Level level)
+    public static @Nullable ExpiringShape fromTag(CompoundTag tag, Level level)
     {
         Map<String, Value> options = new HashMap<>();
         for (String key : tag.keySet())
@@ -245,7 +245,7 @@ public class ShapeDispatcher
             Param decoder = Param.of.get(key);
             if (decoder == null)
             {
-                CarpetScriptServer.LOG.info("Unknown parameter for shape: " + key);
+                CarpetScriptServer.LOG.info("Unknown parameter for shape: {}", key);
                 return null;
             }
             Value decodedValue = decoder.decode(tag.get(key), level);
@@ -254,13 +254,13 @@ public class ShapeDispatcher
         Value shapeValue = options.get("shape");
         if (shapeValue == null)
         {
-            CarpetScriptServer.LOG.info("Shape id missing in " + String.join(", ", tag.keySet()));
+            CarpetScriptServer.LOG.info("Shape id missing in {}", String.join(", ", tag.keySet()));
             return null;
         }
         BiFunction<Map<String, Value>, RegistryAccess, ExpiringShape> factory = ExpiringShape.shapeProviders.get(shapeValue.getString());
         if (factory == null)
         {
-            CarpetScriptServer.LOG.info("Unknown shape: " + shapeValue.getString());
+            CarpetScriptServer.LOG.info("Unknown shape: {}", shapeValue.getString());
             return null;
         }
         try
@@ -269,24 +269,23 @@ public class ShapeDispatcher
         }
         catch (InternalExpressionException exc)
         {
-            CarpetScriptServer.LOG.info(exc.getMessage());
+            CarpetScriptServer.LOG.info("", exc);
         }
         return null;
     }
 
     public abstract static class ExpiringShape
     {
-        public static final Map<String, BiFunction<Map<String, Value>, RegistryAccess, ExpiringShape>> shapeProviders = new HashMap<>()
-        {{
-            put("line", creator(Line::new));
-            put("box", creator(Box::new));
-            put("sphere", creator(Sphere::new));
-            put("cylinder", creator(Cylinder::new));
-            put("label", creator(DisplayedText::new));
-            put("polygon", creator(Polyface::new));
-            put("block", creator(() -> new DisplayedSprite(false)));
-            put("item", creator(() -> new DisplayedSprite(true)));
-        }};
+        public static final ImmutableMap<String, BiFunction<Map<String, Value>, RegistryAccess, ExpiringShape>> shapeProviders = ImmutableMap.<String, BiFunction<Map<String, Value>, RegistryAccess, ExpiringShape>>builder().
+                put("line", creator(Line::new)).
+                put("box", creator(Box::new)).
+                put("sphere", creator(Sphere::new)).
+                put("cylinder", creator(Cylinder::new)).
+                put("label", creator(DisplayedText::new)).
+                put("polygon", creator(Polyface::new)).
+                put("block", creator(() -> new DisplayedSprite(false))).
+                put("item", creator(() -> new DisplayedSprite(true))).
+                build();
 
         private static BiFunction<Map<String, Value>, RegistryAccess, ExpiringShape> creator(Supplier<ExpiringShape> shapeFactory)
         {
@@ -978,78 +977,65 @@ public class ShapeDispatcher
                 return alterPoint;
             }
             alterPoint = new ArrayList<>();
-            switch (mode)
-            {
-                case 4:
-                    for (int i = 0; i < vertexList.size(); i++)
-                    {
+            switch (mode) {
+                case 4 -> {
+                    for (int i = 0; i < vertexList.size(); i++) {
                         Vec3 vecA = vertexList.get(i);
-                        if (relative.get(i))
-                        {
+                        if (relative.get(i)) {
                             vecA = relativiseRender(p.level(), vecA, 0);
                         }
                         i++;
                         Vec3 vecB = vertexList.get(i);
-                        if (relative.get(i))
-                        {
+                        if (relative.get(i)) {
                             vecB = relativiseRender(p.level(), vecB, 0);
                         }
                         i++;
                         Vec3 vecC = vertexList.get(i);
-                        if (relative.get(i))
-                        {
+                        if (relative.get(i)) {
                             vecC = relativiseRender(p.level(), vecC, 0);
                         }
                         alterDrawTriangles(vecA, vecB, vecC);
                     }
-                    break;
-                case 6:
+                }
+                case 6 -> {
                     Vec3 vec0 = vertexList.get(0);
-                    if (relative.get(0))
-                    {
+                    if (relative.get(0)) {
                         vec0 = relativiseRender(p.level(), vec0, 0);
                     }
                     Vec3 vec1 = vertexList.get(1);
-                    if (relative.get(1))
-                    {
+                    if (relative.get(1)) {
                         vec1 = relativiseRender(p.level(), vec1, 0);
                     }
-                    for (int i = 2; i < vertexList.size(); i++)
-                    {
+                    for (int i = 2; i < vertexList.size(); i++) {
                         Vec3 vec = vertexList.get(i);
-                        if (relative.get(i))
-                        {
+                        if (relative.get(i)) {
                             vec = relativiseRender(p.level(), vec, 0);
                         }
                         alterDrawTriangles(vec0, vec1, vec);
                         vec1 = vec;
                     }
-                    break;
-                case 5:
+                }
+                case 5 -> {
                     Vec3 vecA = vertexList.get(0);
-                    if (relative.get(0))
-                    {
+                    if (relative.get(0)) {
                         vecA = relativiseRender(p.level(), vecA, 0);
                     }
                     Vec3 vecB = vertexList.get(1);
-                    if (relative.get(1))
-                    {
+                    if (relative.get(1)) {
                         vecB = relativiseRender(p.level(), vecB, 0);
                     }
-                    for (int i = 2; i < vertexList.size(); i++)
-                    {
+                    for (int i = 2; i < vertexList.size(); i++) {
                         Vec3 vec = vertexList.get(i);
-                        if (relative.get(i))
-                        {
+                        if (relative.get(i)) {
                             vec = relativiseRender(p.level(), vec, 0);
                         }
                         alterDrawTriangles(vecA, vecB, vec);
                         vecA = vecB;
                         vecB = vec;
                     }
-                    break;
-                default:
-                    break;
+                }
+                default -> {
+                }
             }
 
             return alterPoint;
@@ -1466,85 +1452,81 @@ public class ShapeDispatcher
 
     public abstract static class Param
     {
-        public static final Map<String, Param> of = new HashMap<>()
-        {{
-            put("mode", new StringChoiceParam("mode", "polygon", "strip", "triangles"));
-            put("relative", new OptionalBoolListParam("relative"));
-            put("inner", new BoolParam("inner"));
-            put("shape", new ShapeParam());
-            put("dim", new DimensionParam());
-            put("duration", new NonNegativeIntParam("duration"));
-            put("color", new ColorParam("color"));
-            put("follow", new EntityParam("follow"));
-            put("variant", new StringChoiceParam("variant",
-                    "NONE",
-                    "THIRD_PERSON_LEFT_HAND",
-                    "THIRD_PERSON_RIGHT_HAND",
-                    "FIRST_PERSON_LEFT_HAND",
-                    "FIRST_PERSON_RIGHT_HAND",
-                    "HEAD",
-                    "GUI",
-                    "GROUND",
-                    "FIXED",
-                    "ON_SHELF")
-            {
-                @Override
-                public Value validate(Map<String, Value> o, MinecraftServer s, Value v)
+        public static final ImmutableMap<String, Param> of = ImmutableMap.<String, Param>builder()
+                .put("mode", new StringChoiceParam("mode", "polygon", "strip", "triangles"))
+                .put("relative", new OptionalBoolListParam("relative"))
+                .put("inner", new BoolParam("inner"))
+                .put("shape", new ShapeParam())
+                .put("dim", new DimensionParam())
+                .put("duration", new NonNegativeIntParam("duration"))
+                .put("color", new ColorParam("color"))
+                .put("follow", new EntityParam("follow"))
+                .put("variant", new StringChoiceParam("variant",
+                        "NONE",
+                        "THIRD_PERSON_LEFT_HAND",
+                        "THIRD_PERSON_RIGHT_HAND",
+                        "FIRST_PERSON_LEFT_HAND",
+                        "FIRST_PERSON_RIGHT_HAND",
+                        "HEAD",
+                        "GUI",
+                        "GROUND",
+                        "FIXED",
+                        "ON_SHELF")
                 {
-                    return super.validate(o, s, new StringValue(v.getString().toUpperCase(Locale.ROOT)));
-                }
-            });
-            put("snap", new StringChoiceParam("snap",
-                    "xyz", "xz", "yz", "xy", "x", "y", "z",
-                    "dxdydz", "dxdz", "dydz", "dxdy", "dx", "dy", "dz",
-                    "xdz", "dxz", "ydz", "dyz", "xdy", "dxy",
-                    "xydz", "xdyz", "xdydz", "dxyz", "dxydz", "dxdyz"
-            ));
-            put("line", new PositiveFloatParam("line"));
-            put("fill", new ColorParam("fill"));
-
-            put("from", new Vec3Param("from", false));
-            put("to", new Vec3Param("to", true));
-            put("center", new Vec3Param("center", false));
-            put("pos", new Vec3Param("pos", false));
-            put("radius", new PositiveFloatParam("radius"));
-            put("level", new PositiveIntParam("level"));
-            put("height", new FloatParam("height"));
-            put("width", new FloatParam("width"));
-            put("scale", new Vec3Param("scale", false)
-            {
-                @Override
-                public Value validate(java.util.Map<String, Value> options, MinecraftServer server, Value value)
-                {
-                    if (value instanceof final NumericValue vn)
+                    @Override
+                    public Value validate(Map<String, Value> o, MinecraftServer s, Value v)
                     {
-                        value = ListValue.of(vn, vn, vn);
+                        return super.validate(o, s, new StringValue(v.getString().toUpperCase(Locale.ROOT)));
                     }
-                    return super.validate(options, server, value);
-                }
+                })
+                .put("snap", new StringChoiceParam("snap",
+                        "xyz", "xz", "yz", "xy", "x", "y", "z",
+                        "dxdydz", "dxdz", "dydz", "dxdy", "dx", "dy", "dz",
+                        "xdz", "dxz", "ydz", "dyz", "xdy", "dxy",
+                        "xydz", "xdyz", "xdydz", "dxyz", "dxydz", "dxdyz"
+                ))
+                .put("line", new PositiveFloatParam("line"))
+                .put("fill", new ColorParam("fill"))
+                .put("from", new Vec3Param("from", false))
+                .put("to", new Vec3Param("to", true))
+                .put("center", new Vec3Param("center", false))
+                .put("pos", new Vec3Param("pos", false))
+                .put("radius", new PositiveFloatParam("radius"))
+                .put("level", new PositiveIntParam("level"))
+                .put("height", new FloatParam("height"))
+                .put("width", new FloatParam("width"))
+                .put("scale", new Vec3Param("scale", false)
+                {
+                    @Override
+                    public Value validate(java.util.Map<String, Value> options, MinecraftServer server, Value value)
+                    {
+                        if (value instanceof final NumericValue vn)
+                        {
+                            value = ListValue.of(vn, vn, vn);
+                        }
+                        return super.validate(options, server, value);
+                    }
+                })
+                .put("axis", new StringChoiceParam("axis", "x", "y", "z"))
+                .put("points", new PointsParam("points"))
+                .put("text", new FormattedTextParam("text"))
+                .put("value", new FormattedTextParam("value"))
+                .put("size", new PositiveIntParam("size"))
+                .put("align", new StringChoiceParam("align", "center", "left", "right"))
+                .put("block", new BlockParam("block"))
+                .put("item", new ItemParam("item"))
+                .put("blocklight", new NonNegativeIntParam("blocklight"))
+                .put("skylight", new NonNegativeIntParam("skylight"))
+                .put("indent", new FloatParam("indent"))
+                .put("raise", new FloatParam("raise"))
+                .put("tilt", new FloatParam("tilt"))
+                .put("lean", new FloatParam("lean"))
+                .put("turn", new FloatParam("turn"))
+                .put("facing", new StringChoiceParam("facing", "player", "camera", "north", "south", "east", "west", "up", "down"))
+                .put("doublesided", new BoolParam("doublesided"))
+                .put("debug", new BoolParam("debug"))
+                .build();
 
-            });
-            put("axis", new StringChoiceParam("axis", "x", "y", "z"));
-            put("points", new PointsParam("points"));
-            put("text", new FormattedTextParam("text"));
-            put("value", new FormattedTextParam("value"));
-            put("size", new PositiveIntParam("size"));
-            put("align", new StringChoiceParam("align", "center", "left", "right"));
-
-            put("block", new BlockParam("block"));
-            put("item", new ItemParam("item"));
-            put("blocklight", new NonNegativeIntParam("blocklight"));
-            put("skylight", new NonNegativeIntParam("skylight"));
-            put("indent", new FloatParam("indent"));
-            put("raise", new FloatParam("raise"));
-            put("tilt", new FloatParam("tilt"));
-            put("lean", new FloatParam("lean"));
-            put("turn", new FloatParam("turn"));
-            put("facing", new StringChoiceParam("facing", "player", "camera", "north", "south", "east", "west", "up", "down"));
-            put("doublesided", new BoolParam("doublesided"));
-            put("debug", new BoolParam("debug"));
-
-        }};
         protected String id;
 
         protected Param(String id)
@@ -1552,8 +1534,7 @@ public class ShapeDispatcher
             this.id = id;
         }
 
-        @Nullable
-        public abstract Tag toTag(Value value, final RegistryAccess regs); //validates value, returning null if not necessary to keep it and serialize
+        public abstract @Nullable Tag toTag(Value value, final RegistryAccess regs); //validates value, returning null if not necessary to keep it and serialize
 
         public abstract Value validate(Map<String, Value> options, MinecraftServer server, Value value); // makes sure the value is proper
 
@@ -1640,9 +1621,8 @@ public class ShapeDispatcher
             return BlockValue.fromString(value.getString(), server.overworld());
         }
 
-        @Nullable
         @Override
-        public Tag toTag(Value value, final RegistryAccess regs)
+        public @Nullable Tag toTag(Value value, final RegistryAccess regs)
         {
             if (value instanceof final BlockValue blv)
             {
@@ -1758,9 +1738,8 @@ public class ShapeDispatcher
             this.options = Sets.newHashSet(options);
         }
 
-        @Nullable
         @Override
-        public Value validate(Map<String, Value> options, MinecraftServer server, Value value)
+        public @Nullable Value validate(Map<String, Value> options, MinecraftServer server, Value value)
         {
             if (this.options.contains(value.getString()))
             {
@@ -2046,7 +2025,7 @@ public class ShapeDispatcher
                         new NumericValue(e.getZ())
                 );
             }
-            CarpetScriptServer.LOG.error("Value: " + value.getString());
+            CarpetScriptServer.LOG.error("Value: {}", value.getString());
             throw new InternalExpressionException("'" + p.id + "' requires a triple, block or entity to indicate position");
         }
 
@@ -2206,7 +2185,7 @@ public class ShapeDispatcher
         {
             ServerLevel world = player.level();
             world.sendParticles(player, particle, true, true,
-                    (towards.x) / 2 + from.x, (towards.y) / 2 + from.y, (towards.z) / 2 + from.z, particles / 3,
+                    towards.x / 2 + from.x, towards.y / 2 + from.y, towards.z / 2 + from.z, particles / 3,
                     towards.x / 6, towards.y / 6, towards.z / 6, 0.0);
             world.sendParticles(player, particle, true, true,
                     from.x, from.y, from.z, 1, 0.0, 0.0, 0.0, 0.0);
@@ -2223,10 +2202,10 @@ public class ShapeDispatcher
             {
                 ServerLevel world = player.level();
                 world.sendParticles(player, particle, true, true,
-                        (towards.x) / center + from.x, (towards.y) / center + from.y, (towards.z) / center + from.z, particles / divider,
+                        towards.x / center + from.x, towards.y / center + from.y, towards.z / center + from.z, particles / divider,
                         towards.x / dev, towards.y / dev, towards.z / dev, 0.0);
                 world.sendParticles(player, particle, true, true,
-                        (towards.x) * (1.0 - 1.0 / center) + from.x, (towards.y) * (1.0 - 1.0 / center) + from.y, (towards.z) * (1.0 - 1.0 / center) + from.z, particles / divider,
+                        towards.x * (1.0 - 1.0 / center) + from.x, towards.y * (1.0 - 1.0 / center) + from.y, towards.z * (1.0 - 1.0 / center) + from.z, particles / divider,
                         towards.x / dev, towards.y / dev, towards.z / dev, 0.0);
             }
             parts += 2 * particles / divider;

src/main/java/carpet/script/utils/ShapesRenderer.java

@@ -4,6 +4,7 @@ import carpet.script.CarpetScriptServer;
 import carpet.script.external.Carpet;
 import carpet.script.utils.shapes.ShapeDirection;
 
+import com.google.common.collect.ImmutableMap;
 import com.mojang.blaze3d.pipeline.RenderTarget;
 import com.mojang.blaze3d.systems.RenderSystem;
 import com.mojang.blaze3d.vertex.PoseStack;
@@ -63,18 +64,16 @@ public class ShapesRenderer
     private final Map<ResourceKey<Level>, Long2ObjectOpenHashMap<RenderedShape<? extends ShapeDispatcher.ExpiringShape>>> labels;
     private final Minecraft client;
 
-    private final Map<String, BiFunction<Minecraft, ShapeDispatcher.ExpiringShape, RenderedShape<? extends ShapeDispatcher.ExpiringShape>>> renderedShapes
-            = new HashMap<>()
-    {{
-        put("line", RenderedLine::new);
-        put("box", RenderedBox::new);
-        put("sphere", RenderedSphere::new);
-        put("cylinder", RenderedCylinder::new);
-        put("label", RenderedText::new);
-        put("polygon", RenderedPolyface::new);
-        put("block", (c, s) -> new RenderedSprite(c, s, false));
-        put("item", (c, s) -> new RenderedSprite(c, s, true));
-    }};
+    private final Map<String, BiFunction<Minecraft, ShapeDispatcher.ExpiringShape, RenderedShape<? extends ShapeDispatcher.ExpiringShape>>> renderedShapes = ImmutableMap.<String, BiFunction<Minecraft, ShapeDispatcher.ExpiringShape, RenderedShape<? extends ShapeDispatcher.ExpiringShape>>>builder()
+            .put("line", RenderedLine::new)
+            .put("box", RenderedBox::new)
+            .put("sphere", RenderedSphere::new)
+            .put("cylinder", RenderedCylinder::new)
+            .put("label", RenderedText::new)
+            .put("polygon", RenderedPolyface::new)
+            .put("block", (c, s) -> new RenderedSprite(c, s, false))
+            .put("item", (c, s) -> new RenderedSprite(c, s, true))
+            .build();
 
     public static void rotatePoseStackByShapeDirection(PoseStack poseStack, ShapeDirection shapeDirection, Camera camera, Vec3 objectPos)
     {
@@ -93,8 +92,8 @@ public class ShapesRenderer
                 double y = vector.y;
                 double z = vector.z;
                 double d = Math.sqrt(x * x + z * z);
-                float rotX = (float) (Math.atan2(x, z));
-                float rotY = (float) (Math.atan2(y, d));
+                float rotX = (float) Math.atan2(x, z);
+                float rotY = (float) Math.atan2(y, d);
 
                 // that should work somehow but it doesn't for some reason
                 //matrices.mulPose(new Quaternion( -rotY, rotX, 0, false));
@@ -239,7 +238,7 @@ public class ShapesRenderer
         shapeFactory = renderedShapes.get(tag.getString("shape").orElseThrow());
         if (shapeFactory == null)
         {
-            CarpetScriptServer.LOG.info("Unrecognized shape: " + tag.getString("shape"));
+            CarpetScriptServer.LOG.info("Unrecognized shape: {}", tag.getString("shape"));
         }
         else
         {
@@ -564,11 +563,11 @@ public class ShapesRenderer
             float text_x = 0;
             if (shape.align == 0)
             {
-                text_x = (float) (-textRenderer.width(shape.value.getString())) / 2.0F;
+                text_x = (float) -textRenderer.width(shape.value.getString()) / 2.0F;
             }
             else if (shape.align == 1)
             {
-                text_x = (float) (-textRenderer.width(shape.value.getString()));
+                text_x = (float) -textRenderer.width(shape.value.getString());
             }
             //try (ByteBufferBuilder bbb = new ByteBufferBuilder(RenderType.TRANSIENT_BUFFER_SIZE))
             //{
@@ -620,7 +619,7 @@ public class ShapesRenderer
             }
             catch (ClassCastException ignored)
             {
-                CarpetScriptServer.LOG.error("shape " + rshape.shape.getClass() + " cannot cast to a Label");
+                CarpetScriptServer.LOG.error("shape {} cannot cast to a Label", rshape.shape.getClass());
             }
         }
     }
@@ -893,7 +892,7 @@ public class ShapesRenderer
             }
             Vec3 vc = shape.relativiseRender(client.level, shape.center, partialTick);
             drawSphereWireframe(primitives,
-                    (float) (vc.x), (float) (vc.y), (float) (vc.z),
+                    (float) vc.x, (float) vc.y, (float) vc.z,
                     (float) (shape.radius + renderEpsilon), shape.subdivisions,
                     shape.argb, shape.lineWidth);
         }
@@ -907,7 +906,7 @@ public class ShapesRenderer
             }
             Vec3 vc = shape.relativiseRender(client.level, shape.center, partialTick);
             drawSphereFaces(primitives,
-                    (float) (vc.x ), (float) (vc.y ), (float) (vc.z ),
+                    (float) vc.x, (float) vc.y, (float) vc.z,
                     (float) (shape.radius + renderEpsilon), shape.subdivisions,
                     shape.fargb);
         }
@@ -1358,8 +1357,8 @@ public class ShapesRenderer
 
     private static int shuffleColor(int argb) {
         int a = 0xff000000 & argb;
-        argb = (new Random(argb)).nextInt();
-        argb = (a) | (0x00ffffff & argb);
+        argb = new Random(argb).nextInt();
+        argb = a | (0x00ffffff & argb);
         return argb;
     }
 

src/main/java/carpet/script/utils/SnoopyCommandSource.java

@@ -1,6 +1,5 @@
 package carpet.script.utils;
 
-import carpet.fakes.CommandSourceStackInterface;
 import carpet.script.external.Vanilla;
 import net.minecraft.commands.CommandResultCallback;
 import net.minecraft.commands.CommandSigningContext;
@@ -65,18 +64,18 @@ public class SnoopyCommandSource extends CommandSourceStack
         this.chatOutput = chatOutput;
         this.signingContext = original.getSigningContext();
         this.taskChainer = TaskChainer.immediate(original.getServer());
-        ((CommandSourceStackInterface) this).setupPrivates(false, (b, i) -> returnValue[0] = OptionalLong.of(i), EntityAnchorArgument.Anchor.FEET, CommandSigningContext.ANONYMOUS, TaskChainer.immediate(original.getServer()));
+        Vanilla.CommandSourceStack_setupPrivates(this, false, (b, i) -> returnValue[0] = OptionalLong.of(i), EntityAnchorArgument.Anchor.FEET, CommandSigningContext.ANONYMOUS, TaskChainer.immediate(original.getServer()));
     }
 
     public SnoopyCommandSource(ServerPlayer player, Component[] error, List<Component> output, int [] result)
     {
         super(player.commandSource(), player.position(), player.getRotationVector(),
-                player.level() instanceof final ServerLevel serverLevel ? serverLevel : null,
+                player.level(),
                 player.level().getServer().getProfilePermissions(player.nameAndId()),
                 player.level().getServer(), player);
         this.output = player.commandSource();
         this.position = player.position();
-        this.world = player.level() instanceof final ServerLevel serverLevel ? serverLevel : null;
+        this.world = player.level();
         this.level = player.level().getServer().getProfilePermissions(player.nameAndId());
         this.namesProvider = NamesProvider.FOR_ENTITY;
         this.server = player.level().getServer();
@@ -88,7 +87,7 @@ public class SnoopyCommandSource extends CommandSourceStack
         this.chatOutput = output;
         this.signingContext = CommandSigningContext.ANONYMOUS;
         this.taskChainer = TaskChainer.immediate(player.level().getServer());
-        ((CommandSourceStackInterface) this).setupPrivates(false, (b, i) -> result[0] = i, EntityAnchorArgument.Anchor.FEET, CommandSigningContext.ANONYMOUS, TaskChainer.immediate(player.level().getServer()));
+        Vanilla.CommandSourceStack_setupPrivates(this, false, (b, i) -> result[0] = i, EntityAnchorArgument.Anchor.FEET, CommandSigningContext.ANONYMOUS, TaskChainer.immediate(player.level().getServer()));
     }
 
     private SnoopyCommandSource(CommandSource output, Vec3 pos, Vec2 rot, ServerLevel world, PermissionSet level, CommandSourceStack.NamesProvider namesProvider, MinecraftServer server, @Nullable Entity entity, CommandResultCallback consumer, EntityAnchorArgument.Anchor entityAnchor, CommandSigningContext context, TaskChainer chainer,
@@ -113,7 +112,7 @@ public class SnoopyCommandSource extends CommandSourceStack
         this.chatOutput = chatOutput;
         this.signingContext = context;
         this.taskChainer = chainer;
-        ((CommandSourceStackInterface) this).setupPrivates(false, consumer, entityAnchor, context, chainer);
+        Vanilla.CommandSourceStack_setupPrivates(this, false, consumer, entityAnchor, context, chainer);
     }
 
     @Override
@@ -191,7 +190,7 @@ public class SnoopyCommandSource extends CommandSourceStack
         double e = position.y - vec3d.y;
         double f = position.z - vec3d.z;
         double g = Math.sqrt(d * d + f * f);
-        float h = Mth.wrapDegrees((float) (-(Mth.atan2(e, g) * 57.2957763671875D)));
+        float h = Mth.wrapDegrees((float) -(Mth.atan2(e, g) * 57.2957763671875D));
         float i = Mth.wrapDegrees((float) (Mth.atan2(f, d) * 57.2957763671875D) - 90.0F);
         return this.withRotation(new Vec2(h, i));
     }

src/main/java/carpet/script/utils/SystemInfo.java

@@ -35,6 +35,7 @@ import java.util.function.Function;
 
 public class SystemInfo
 {
+    @SuppressWarnings("DoubleBraceInitialization")
     private static final Map<String, Function<CarpetContext, Value>> options = new HashMap<>()
     {{
         put("app_name", c ->
@@ -43,7 +44,7 @@ public class SystemInfo
             return name == null ? Value.NULL : new StringValue(name);
         });
         put("app_list", c -> ListValue.wrap(((CarpetScriptHost) c.host).scriptServer().modules.keySet().stream().filter(Objects::nonNull).map(StringValue::new)));
-        put("app_scope", c -> StringValue.of((c.host).isPerUser() ? "player" : "global"));
+        put("app_scope", c -> StringValue.of(c.host.isPerUser() ? "player" : "global"));
         put("app_players", c -> ListValue.wrap(c.host.getUserList().stream().map(StringValue::new)));
 
         put("world_name", c -> new StringValue(c.server().getWorldData().getLevelName()));
@@ -133,7 +134,7 @@ public class SystemInfo
             long[] tickArray = c.server().getTickTimesNanos();
             for (int i = currentReportedTick + 100; i > currentReportedTick; i--)
             {
-                ticks.add(new NumericValue((tickArray[i % 100]) / 1000000.0));
+                ticks.add(new NumericValue(tickArray[i % 100] / 1000000.0));
             }
             return ListValue.wrap(ticks);
         });

src/main/java/carpet/script/utils/shapes/ShapeDirection.java

@@ -14,8 +14,7 @@ public enum ShapeDirection
     CAMERA,
     PLAYER;
 
-    @Nullable
-    public static ShapeDirection fromString(String direction)
+    public static @Nullable ShapeDirection fromString(String direction)
     {
         return switch (direction.toLowerCase(Locale.ROOT))
         {

src/main/java/carpet/script/value/EntityValue.java

@@ -298,6 +298,7 @@ public class EntityValue extends Value
             return ListValue.wrap(types.stream().map(et -> nameFromRegistryId(entityRegs.getKey(et))));
         }
 
+        @SuppressWarnings("DoubleBraceInitialization")
         public static final Map<String, EntityClassDescriptor> byName = new HashMap<>()
         {{
             List<EntityType<?>> allTypes = BuiltInRegistries.ENTITY_TYPE.stream().toList();
@@ -409,7 +410,7 @@ public class EntityValue extends Value
 
     public Value get(String what, @Nullable Value arg)
     {
-        if (!(featureAccessors.containsKey(what)))
+        if (!featureAccessors.containsKey(what))
         {
             throw new InternalExpressionException("Unknown entity feature: " + what);
         }
@@ -432,6 +433,7 @@ public class EntityValue extends Value
             "feet", EquipmentSlot.FEET
     );
 
+    @SuppressWarnings("DoubleBraceInitialization")
     private static final Map<String, BiFunction<Entity, Value, Value>> featureAccessors = new HashMap<String, BiFunction<Entity, Value, Value>>()
     {{
         //put("test", (e, a) -> a == null ? Value.NULL : new StringValue(a.getString()));
@@ -834,16 +836,11 @@ public class EntityValue extends Value
             {
                 return ValueConversions.of(hitres.getLocation());
             }
-            switch (hitres.getType())
-            {
-                case MISS:
-                    return Value.NULL;
-                case BLOCK:
-                    return new BlockValue((ServerLevel) e.level(), ((BlockHitResult) hitres).getBlockPos());
-                case ENTITY:
-                    return new EntityValue(((EntityHitResult) hitres).getEntity());
-            }
-            return Value.NULL;
+            return switch (hitres.getType()) {
+                case MISS -> Value.NULL;
+                case BLOCK -> new BlockValue((ServerLevel) e.level(), ((BlockHitResult) hitres).getBlockPos());
+                case ENTITY -> new EntityValue(((EntityHitResult) hitres).getEntity());
+            };
         });
 
         put("attribute", (e, a) -> {
@@ -888,7 +885,7 @@ public class EntityValue extends Value
 
     public void set(String what, @Nullable Value toWhat)
     {
-        if (!(featureModifiers.containsKey(what)))
+        if (!featureModifiers.containsKey(what))
         {
             throw new InternalExpressionException("Unknown entity action: " + what);
         }
@@ -947,10 +944,11 @@ public class EntityValue extends Value
         e.syncVelocity = true;
         if (Math.abs(scale) > 10000)
         {
-            CarpetScriptServer.LOG.warn("Moved entity " + e.getScoreboardName() + " " + e.getName() + " at " + e.position() + " extremely fast: " + e.getDeltaMovement());
+            CarpetScriptServer.LOG.warn("Moved entity {} {} at {} extremely fast: {}", e.getScoreboardName(), e.getName(), e.position(), e.getDeltaMovement());
         }
     }
 
+    @SuppressWarnings("DoubleBraceInitialization")
     private static final Map<String, BiConsumer<Entity, Value>> featureModifiers = new HashMap<String, BiConsumer<Entity, Value>>()
     {{
         put("remove", (entity, value) -> entity.discard()); // using discard here - will see other options if valid
@@ -1547,8 +1545,8 @@ public class EntityValue extends Value
             {
                 return;
             }
-            GameType toSet = v instanceof NumericValue ?
-                    GameType.byId(((NumericValue) v).getInt()) :
+            GameType toSet = v instanceof final NumericValue numericValue ?
+                    GameType.byId(numericValue.getInt()) :
                     GameType.byName(v.getString().toLowerCase(Locale.ROOT), null);
             if (toSet != null)
             {

src/main/java/carpet/script/value/ListValue.java

@@ -434,9 +434,9 @@ public class ListValue extends AbstractListValue implements ContainerValueInterf
     {
         if (ind.isNull())
         {
-            if (extend && value instanceof AbstractListValue)
+            if (extend && value instanceof final AbstractListValue abstractListValue)
             {
-                ((AbstractListValue) value).iterator().forEachRemaining(items::add);
+                abstractListValue.iterator().forEachRemaining(items::add);
             }
             else
             {
@@ -446,11 +446,11 @@ public class ListValue extends AbstractListValue implements ContainerValueInterf
         else
         {
             int numitems = items.size();
-            if (!(ind instanceof NumericValue))
+            if (!(ind instanceof final NumericValue numericValue))
             {
                 return false;
             }
-            int index = (int) ((NumericValue) ind).getLong();
+            int index = (int) numericValue.getLong();
             if (index < 0)
             {// only for values < 0
                 index = normalizeIndex(index, numitems);
@@ -469,9 +469,9 @@ public class ListValue extends AbstractListValue implements ContainerValueInterf
                 items.add(Value.NULL);
             }
 
-            if (extend && value instanceof AbstractListValue)
+            if (extend && value instanceof final AbstractListValue abstractListValue)
             {
-                Iterable<Value> iterable = ((AbstractListValue) value)::iterator;
+                Iterable<Value> iterable = abstractListValue::iterator;
                 List<Value> appendix = StreamSupport.stream(iterable.spliterator(), false).collect(Collectors.toList());
                 items.addAll(index, appendix);
                 return true;
@@ -498,11 +498,11 @@ public class ListValue extends AbstractListValue implements ContainerValueInterf
     @Override
     public boolean delete(Value where)
     {
-        if (!(where instanceof NumericValue) || items.isEmpty())
+        if (!(where instanceof final NumericValue numericValue) || items.isEmpty())
         {
             return false;
         }
-        long index = ((NumericValue) where).getLong();
+        long index = numericValue.getLong();
         items.remove(normalizeIndex(index, items.size()));
         return true;
     }
@@ -592,8 +592,8 @@ public class ListValue extends AbstractListValue implements ContainerValueInterf
         }
         // only numbers / mixed types
         tags.forEach(cases.contains(TagTypeCompat.DBL)
-                ? (t -> tag.add(DoubleTag.valueOf(((NumericTag) t).doubleValue())))
-                : (t -> tag.add(LongTag.valueOf(((NumericTag) t).longValue()))));
+                ? t -> tag.add(DoubleTag.valueOf(((NumericTag) t).doubleValue()))
+                : t -> tag.add(LongTag.valueOf(((NumericTag) t).longValue())));
         return tag;
     }
 

src/main/java/carpet/script/value/NBTSerializableValue.java

@@ -118,14 +118,12 @@ public class NBTSerializableValue extends Value implements ContainerValueInterfa
         return StringValue.of(nameFromResource(id));
     }
 
-    @Nullable
-    public static String nameFromResource(@Nullable Identifier id)
+    public static @Nullable String nameFromResource(@Nullable Identifier id)
     {
         return id == null ? null : id.getNamespace().equals("minecraft") ? id.getPath() : id.toString();
     }
 
-    @Nullable
-    public static NBTSerializableValue parseString(String nbtString)
+    public static @Nullable NBTSerializableValue parseString(String nbtString)
     {
         try
         {
@@ -356,7 +354,7 @@ public class NBTSerializableValue extends Value implements ContainerValueInterfa
             {
                 return res.createItemStack(1);
             }
-            ItemInput parser = (new ItemParser(regs)).parse(new StringReader(itemString));
+            ItemInput parser = new ItemParser(regs).parse(new StringReader(itemString));
             res = new ItemInput(parser.item(), parser.components());
 
             itemCache.put(itemString, res);
@@ -477,11 +475,11 @@ public class NBTSerializableValue extends Value implements ContainerValueInterfa
         Tag tag = getTag();
         if (tag instanceof final CompoundTag ctag)
         {
-            return !(ctag).isEmpty();
+            return !ctag.isEmpty();
         }
         if (tag instanceof final CollectionTag ltag)
         {
-            return !(ltag).isEmpty();
+            return !ltag.isEmpty();
         }
         if (tag instanceof final NumericTag number)
         {

src/main/java/carpet/script/value/ScreenValue.java

@@ -88,13 +88,13 @@ public class ScreenValue extends Value
         screenHandlerFactories.put("crafting", CraftingMenu::new);
         screenHandlerFactories.put("enchantment", EnchantmentMenu::new);
         screenHandlerFactories.put("furnace", FurnaceMenu::new);
-        screenHandlerFactories.put("generic_3x3", ((syncId, playerInventory) -> new ChestMenu(GENERIC_3x3, syncId, playerInventory, new SimpleContainer(9), 1)));
-        screenHandlerFactories.put("generic_9x1", ((syncId, playerInventory) -> new ChestMenu(GENERIC_9x1, syncId, playerInventory, new SimpleContainer(9), 1)));
-        screenHandlerFactories.put("generic_9x2", ((syncId, playerInventory) -> new ChestMenu(GENERIC_9x2, syncId, playerInventory, new SimpleContainer(9 * 2), 2)));
-        screenHandlerFactories.put("generic_9x3", ((syncId, playerInventory) -> new ChestMenu(GENERIC_9x3, syncId, playerInventory, new SimpleContainer(9 * 3), 3)));
-        screenHandlerFactories.put("generic_9x4", ((syncId, playerInventory) -> new ChestMenu(GENERIC_9x4, syncId, playerInventory, new SimpleContainer(9 * 4), 4)));
-        screenHandlerFactories.put("generic_9x5", ((syncId, playerInventory) -> new ChestMenu(GENERIC_9x5, syncId, playerInventory, new SimpleContainer(9 * 5), 5)));
-        screenHandlerFactories.put("generic_9x6", ((syncId, playerInventory) -> new ChestMenu(GENERIC_9x6, syncId, playerInventory, new SimpleContainer(9 * 6), 6)));
+        screenHandlerFactories.put("generic_3x3", (syncId, playerInventory) -> new ChestMenu(GENERIC_3x3, syncId, playerInventory, new SimpleContainer(9), 1));
+        screenHandlerFactories.put("generic_9x1", (syncId, playerInventory) -> new ChestMenu(GENERIC_9x1, syncId, playerInventory, new SimpleContainer(9), 1));
+        screenHandlerFactories.put("generic_9x2", (syncId, playerInventory) -> new ChestMenu(GENERIC_9x2, syncId, playerInventory, new SimpleContainer(9 * 2), 2));
+        screenHandlerFactories.put("generic_9x3", (syncId, playerInventory) -> new ChestMenu(GENERIC_9x3, syncId, playerInventory, new SimpleContainer(9 * 3), 3));
+        screenHandlerFactories.put("generic_9x4", (syncId, playerInventory) -> new ChestMenu(GENERIC_9x4, syncId, playerInventory, new SimpleContainer(9 * 4), 4));
+        screenHandlerFactories.put("generic_9x5", (syncId, playerInventory) -> new ChestMenu(GENERIC_9x5, syncId, playerInventory, new SimpleContainer(9 * 5), 5));
+        screenHandlerFactories.put("generic_9x6", (syncId, playerInventory) -> new ChestMenu(GENERIC_9x6, syncId, playerInventory, new SimpleContainer(9 * 6), 6));
         screenHandlerFactories.put("grindstone", GrindstoneMenu::new);
         screenHandlerFactories.put("hopper", HopperMenu::new);
         screenHandlerFactories.put("lectern", (syncId, playerInventory) -> new LecternMenu(syncId, new SimpleContainer(1), new SimpleContainerData(1)));

src/main/java/carpet/script/value/ValueConversions.java

@@ -149,9 +149,9 @@ public class ValueConversions
 
     public static Level dimFromValue(Value dimensionValue, MinecraftServer server)
     {
-        if (dimensionValue instanceof EntityValue)
+        if (dimensionValue instanceof final EntityValue entityValue)
         {
-            return ((EntityValue) dimensionValue).getEntity().level();
+            return entityValue.getEntity().level();
         }
         else if (dimensionValue instanceof BlockValue bv)
         {
@@ -175,7 +175,7 @@ public class ValueConversions
                     ResourceKey<Level> dim = null;
                     Identifier id = Identifier.parse(dimString);
                     // not using RegistryKey.of since that one creates on check
-                    for (ResourceKey<Level> world : (server.levelKeys()))
+                    for (ResourceKey<Level> world : server.levelKeys())
                     {
                         if (id.equals(world.identifier()))
                         {
@@ -419,6 +419,7 @@ public class ValueConversions
         }
     }
 
+    @SuppressWarnings("DoubleBraceInitialization")
     private static final Int2ObjectMap<SlotParam> slotIdsToSlotParams = new Int2ObjectOpenHashMap<>()
     {{
         int n;

src/main/java/carpet/utils/Messenger.java

@@ -257,10 +257,10 @@ public class Messenger
         MutableComponent previousComponent = null;
         for (Object o: fields)
         {
-            if (o instanceof MutableComponent)
+            if (o instanceof final MutableComponent mutableComponent)
             {
-                message.append((MutableComponent)o);
-                previousComponent = (MutableComponent)o;
+                message.append(mutableComponent);
+                previousComponent = mutableComponent;
                 continue;
             }
             String txt = o.toString();
@@ -300,7 +300,7 @@ public class Messenger
     public static void print_server_message(MinecraftServer server, String message)
     {
         if (server == null)
-            LOG.error("Message not delivered: "+message);
+            LOG.error("Message not delivered: {}", message);
         server.sendSystemMessage(Component.literal(message));
         Component txt = c("gi "+message);
         for (ServerPlayer entityplayer : server.getPlayerList().getPlayers())
@@ -311,7 +311,7 @@ public class Messenger
     public static void print_server_message(MinecraftServer server, Component message)
     {
         if (server == null)
-            LOG.error("Message not delivered: "+message.getString());
+            LOG.error("Message not delivered: {}", message.getString());
         server.sendSystemMessage(message);
         for (ServerPlayer entityplayer : server.getPlayerList().getPlayers())
         {