Ensure bedrock inventory id is at most 100 (#3260)

core/src/main/java/org/geysermc/geyser/inventory/Inventory.java

@@ -45,7 +45,7 @@ import java.util.Arrays;
 @ToString
 public abstract class Inventory {
     @Getter
-    protected final int id;
+    protected final int javaId;
 
     /**
      * The Java inventory state ID from the server. As of Java Edition 1.18.1 this value has one instance per player.
@@ -94,15 +94,22 @@ public abstract class Inventory {
         this("Inventory", id, size, containerType);
     }
 
-    protected Inventory(String title, int id, int size, ContainerType containerType) {
+    protected Inventory(String title, int javaId, int size, ContainerType containerType) {
         this.title = title;
-        this.id = id;
+        this.javaId = javaId;
         this.size = size;
         this.containerType = containerType;
         this.items = new GeyserItemStack[size];
         Arrays.fill(items, GeyserItemStack.EMPTY);
     }
 
+    // This is to prevent conflicts with special bedrock inventory IDs.
+    // The vanilla java server only sends an ID between 1 and 100 when opening an inventory,
+    // so this is rarely needed. (certain plugins)
+    public int getBedrockId() {
+        return javaId <= 100 ? javaId : (javaId % 100) + 1;
+    }
+
     public GeyserItemStack getItem(int slot) {
         if (slot > this.size) {
             GeyserImpl.getInstance().getLogger().debug("Tried to get an item out of bounds! " + this);

core/src/main/java/org/geysermc/geyser/inventory/click/ClickPlan.java

@@ -144,7 +144,7 @@ public final class ClickPlan {
             }
 
             ServerboundContainerClickPacket clickPacket = new ServerboundContainerClickPacket(
-                    inventory.getId(),
+                    inventory.getJavaId(),
                     stateId,
                     action.slot,
                     action.click.actionType,

core/src/main/java/org/geysermc/geyser/inventory/holder/BlockInventoryHolder.java

@@ -133,7 +133,7 @@ public class BlockInventoryHolder extends InventoryHolder {
     @Override
     public void openInventory(InventoryTranslator translator, GeyserSession session, Inventory inventory) {
         ContainerOpenPacket containerOpenPacket = new ContainerOpenPacket();
-        containerOpenPacket.setId((byte) inventory.getId());
+        containerOpenPacket.setId((byte) inventory.getBedrockId());
         containerOpenPacket.setType(containerType);
         containerOpenPacket.setBlockPosition(inventory.getHolderPosition());
         containerOpenPacket.setUniqueEntityId(inventory.getHolderId());
@@ -146,7 +146,7 @@ public class BlockInventoryHolder extends InventoryHolder {
             // No need to reset a block since we didn't change any blocks
             // But send a container close packet because we aren't destroying the original.
             ContainerClosePacket packet = new ContainerClosePacket();
-            packet.setId((byte) inventory.getId());
+            packet.setId((byte) inventory.getBedrockId());
             packet.setUnknownBool0(true); //TODO needs to be changed in Protocol to "server-side" or something
             session.sendUpstreamPacket(packet);
             return;

core/src/main/java/org/geysermc/geyser/inventory/updater/ChestInventoryUpdater.java

@@ -59,7 +59,7 @@ public class ChestInventoryUpdater extends InventoryUpdater {
         }
 
         InventoryContentPacket contentPacket = new InventoryContentPacket();
-        contentPacket.setContainerId(inventory.getId());
+        contentPacket.setContainerId(inventory.getBedrockId());
         contentPacket.setContents(bedrockItems);
         session.sendUpstreamPacket(contentPacket);
     }
@@ -70,7 +70,7 @@ public class ChestInventoryUpdater extends InventoryUpdater {
             return true;
 
         InventorySlotPacket slotPacket = new InventorySlotPacket();
-        slotPacket.setContainerId(inventory.getId());
+        slotPacket.setContainerId(inventory.getBedrockId());
         slotPacket.setSlot(translator.javaSlotToBedrock(javaSlot));
         slotPacket.setItem(inventory.getItem(javaSlot).getItemData(session));
         session.sendUpstreamPacket(slotPacket);

core/src/main/java/org/geysermc/geyser/inventory/updater/ContainerInventoryUpdater.java

@@ -47,7 +47,7 @@ public class ContainerInventoryUpdater extends InventoryUpdater {
         }
 
         InventoryContentPacket contentPacket = new InventoryContentPacket();
-        contentPacket.setContainerId(inventory.getId());
+        contentPacket.setContainerId(inventory.getBedrockId());
         contentPacket.setContents(Arrays.asList(bedrockItems));
         session.sendUpstreamPacket(contentPacket);
     }
@@ -58,7 +58,7 @@ public class ContainerInventoryUpdater extends InventoryUpdater {
             return true;
 
         InventorySlotPacket slotPacket = new InventorySlotPacket();
-        slotPacket.setContainerId(inventory.getId());
+        slotPacket.setContainerId(inventory.getBedrockId());
         slotPacket.setSlot(translator.javaSlotToBedrock(javaSlot));
         slotPacket.setItem(inventory.getItem(javaSlot).getItemData(session));
         session.sendUpstreamPacket(slotPacket);

core/src/main/java/org/geysermc/geyser/inventory/updater/HorseInventoryUpdater.java

@@ -47,7 +47,7 @@ public class HorseInventoryUpdater extends InventoryUpdater {
         }
 
         InventoryContentPacket contentPacket = new InventoryContentPacket();
-        contentPacket.setContainerId(inventory.getId());
+        contentPacket.setContainerId(inventory.getBedrockId());
         contentPacket.setContents(Arrays.asList(bedrockItems));
         session.sendUpstreamPacket(contentPacket);
     }

core/src/main/java/org/geysermc/geyser/translator/inventory/BeaconInventoryTranslator.java

@@ -62,7 +62,7 @@ public class BeaconInventoryTranslator extends AbstractBlockInventoryTranslator
             @Override
             public void openInventory(InventoryTranslator translator, GeyserSession session, Inventory inventory) {
                 if (!((BeaconContainer) inventory).isUsingRealBlock()) {
-                    InventoryUtils.closeInventory(session, inventory.getId(), false);
+                    InventoryUtils.closeInventory(session, inventory.getJavaId(), false);
                     return;
                 }
                 super.openInventory(translator, session, inventory);

core/src/main/java/org/geysermc/geyser/translator/inventory/BrewingInventoryTranslator.java

@@ -43,7 +43,7 @@ public class BrewingInventoryTranslator extends AbstractBlockInventoryTranslator
     public void openInventory(GeyserSession session, Inventory inventory) {
         super.openInventory(session, inventory);
         ContainerSetDataPacket dataPacket = new ContainerSetDataPacket();
-        dataPacket.setWindowId((byte) inventory.getId());
+        dataPacket.setWindowId((byte) inventory.getBedrockId());
         dataPacket.setProperty(ContainerSetDataPacket.BREWING_STAND_FUEL_TOTAL);
         dataPacket.setValue(20);
         session.sendUpstreamPacket(dataPacket);
@@ -52,7 +52,7 @@ public class BrewingInventoryTranslator extends AbstractBlockInventoryTranslator
     @Override
     public void updateProperty(GeyserSession session, Inventory inventory, int key, int value) {
         ContainerSetDataPacket dataPacket = new ContainerSetDataPacket();
-        dataPacket.setWindowId((byte) inventory.getId());
+        dataPacket.setWindowId((byte) inventory.getBedrockId());
         switch (key) {
             case 0:
                 dataPacket.setProperty(ContainerSetDataPacket.BREWING_STAND_BREW_TIME);

core/src/main/java/org/geysermc/geyser/translator/inventory/EnchantingInventoryTranslator.java

@@ -127,7 +127,7 @@ public class EnchantingInventoryTranslator extends AbstractBlockInventoryTransla
             // Slot should be determined as 0, 1, or 2
             return rejectRequest(request);
         }
-        ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getId(), javaSlot);
+        ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getJavaId(), javaSlot);
         session.sendDownstreamPacket(packet);
         return acceptRequest(request, makeContainerEntries(session, inventory, IntSets.emptySet()));
     }

core/src/main/java/org/geysermc/geyser/translator/inventory/Generic3X3InventoryTranslator.java

@@ -52,7 +52,7 @@ public class Generic3X3InventoryTranslator extends AbstractBlockInventoryTransla
     @Override
     public void openInventory(GeyserSession session, Inventory inventory) {
         ContainerOpenPacket containerOpenPacket = new ContainerOpenPacket();
-        containerOpenPacket.setId((byte) inventory.getId());
+        containerOpenPacket.setId((byte) inventory.getBedrockId());
         // Required for opening the real block - otherwise, if the container type is incorrect, it refuses to open
         containerOpenPacket.setType(((Generic3X3Container) inventory).isDropper() ? com.nukkitx.protocol.bedrock.data.inventory.ContainerType.DROPPER : com.nukkitx.protocol.bedrock.data.inventory.ContainerType.DISPENSER);
         containerOpenPacket.setBlockPosition(inventory.getHolderPosition());

core/src/main/java/org/geysermc/geyser/translator/inventory/InventoryTranslator.java

@@ -804,7 +804,7 @@ public abstract class InventoryTranslator {
      */
     //TODO: compatibility for simulated inventory (ClickPlan)
     private static int findTempSlot(Inventory inventory, GeyserItemStack item, boolean emptyOnly, int... slotBlacklist) {
-        int offset = inventory.getId() == 0 ? 1 : 0; //offhand is not a viable temp slot
+        int offset = inventory.getJavaId() == 0 ? 1 : 0; //offhand is not a viable temp slot
         HashSet<GeyserItemStack> itemBlacklist = new HashSet<>(slotBlacklist.length + 1);
         itemBlacklist.add(item);
 

core/src/main/java/org/geysermc/geyser/translator/inventory/LecternInventoryTranslator.java

@@ -99,10 +99,10 @@ public class LecternInventoryTranslator extends BaseInventoryTranslator {
         LecternContainer lecternContainer = (LecternContainer) inventory;
         if (session.isDroppingLecternBook()) {
             // We have to enter the inventory GUI to eject the book
-            ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getId(), 3);
+            ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getJavaId(), 3);
             session.sendDownstreamPacket(packet);
             session.setDroppingLecternBook(false);
-            InventoryUtils.closeInventory(session, inventory.getId(), false);
+            InventoryUtils.closeInventory(session, inventory.getJavaId(), false);
         } else if (lecternContainer.getBlockEntityTag() == null) {
             CompoundTag tag = book.getNbt();
             // Position has to be the last interacted position... right?
@@ -150,9 +150,9 @@ public class LecternInventoryTranslator extends BaseInventoryTranslator {
                 BlockEntityUtils.updateBlockEntity(session, blockEntityTag, position);
                 session.getLecternCache().add(position);
                 // Close the window - we will reopen it once the client has this data synced
-                ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(lecternContainer.getId());
+                ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(lecternContainer.getJavaId());
                 session.sendDownstreamPacket(closeWindowPacket);
-                InventoryUtils.closeInventory(session, inventory.getId(), false);
+                InventoryUtils.closeInventory(session, inventory.getJavaId(), false);
             }
         }
     }

core/src/main/java/org/geysermc/geyser/translator/inventory/LoomInventoryTranslator.java

@@ -147,7 +147,7 @@ public class LoomInventoryTranslator extends AbstractBlockInventoryTranslator {
         // Java's formula: 4 * row + col
         // And the Java loom window has a fixed row/width of four
         // So... Number / 4 = row (so we don't have to bother there), and number % 4 is our column, which leads us back to our index. :)
-        ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getId(), index);
+        ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getJavaId(), index);
         session.sendDownstreamPacket(packet);
 
         GeyserItemStack inputCopy = inventory.getItem(0).copy(1);

core/src/main/java/org/geysermc/geyser/translator/inventory/StonecutterInventoryTranslator.java

@@ -68,7 +68,7 @@ public class StonecutterInventoryTranslator extends AbstractBlockInventoryTransl
             ItemStack javaOutput = craftingData.output();
 
             // Getting the index of the item in the Java stonecutter list
-            ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getId(), button);
+            ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getJavaId(), button);
             session.sendDownstreamPacket(packet);
             container.setStonecutterButton(button);
             if (inventory.getItem(1).getJavaId() != javaOutput.getId()) {

core/src/main/java/org/geysermc/geyser/translator/inventory/chest/DoubleChestInventoryTranslator.java

@@ -130,7 +130,7 @@ public class DoubleChestInventoryTranslator extends ChestInventoryTranslator {
     @Override
     public void openInventory(GeyserSession session, Inventory inventory) {
         ContainerOpenPacket containerOpenPacket = new ContainerOpenPacket();
-        containerOpenPacket.setId((byte) inventory.getId());
+        containerOpenPacket.setId((byte) inventory.getBedrockId());
         containerOpenPacket.setType(ContainerType.CONTAINER);
         containerOpenPacket.setBlockPosition(inventory.getHolderPosition());
         containerOpenPacket.setUniqueEntityId(inventory.getHolderId());
@@ -143,7 +143,7 @@ public class DoubleChestInventoryTranslator extends ChestInventoryTranslator {
             // No need to reset a block since we didn't change any blocks
             // But send a container close packet because we aren't destroying the original.
             ContainerClosePacket packet = new ContainerClosePacket();
-            packet.setId((byte) inventory.getId());
+            packet.setId((byte) inventory.getBedrockId());
             packet.setUnknownBool0(true); //TODO needs to be changed in Protocol to "server-side" or something
             session.sendUpstreamPacket(packet);
             return;

core/src/main/java/org/geysermc/geyser/translator/inventory/furnace/AbstractFurnaceInventoryTranslator.java

@@ -43,7 +43,7 @@ public abstract class AbstractFurnaceInventoryTranslator extends AbstractBlockIn
     @Override
     public void updateProperty(GeyserSession session, Inventory inventory, int key, int value) {
         ContainerSetDataPacket dataPacket = new ContainerSetDataPacket();
-        dataPacket.setWindowId((byte) inventory.getId());
+        dataPacket.setWindowId((byte) inventory.getBedrockId());
         switch (key) {
             case 0:
                 dataPacket.setProperty(ContainerSetDataPacket.FURNACE_LIT_TIME);

core/src/main/java/org/geysermc/geyser/translator/inventory/horse/ChestedHorseInventoryTranslator.java

@@ -105,7 +105,7 @@ public abstract class ChestedHorseInventoryTranslator extends AbstractHorseInven
         }
 
         InventoryContentPacket horseContentsPacket = new InventoryContentPacket();
-        horseContentsPacket.setContainerId(inventory.getId());
+        horseContentsPacket.setContainerId(inventory.getBedrockId());
         horseContentsPacket.setContents(Arrays.asList(horseItems));
         session.sendUpstreamPacket(horseContentsPacket);
     }

core/src/main/java/org/geysermc/geyser/translator/protocol/bedrock/BedrockContainerCloseTranslator.java

@@ -40,23 +40,23 @@ public class BedrockContainerCloseTranslator extends PacketTranslator<ContainerC
 
     @Override
     public void translate(GeyserSession session, ContainerClosePacket packet) {
-        byte windowId = packet.getId();
+        byte bedrockId = packet.getId();
 
         //Client wants close confirmation
         session.sendUpstreamPacket(packet);
         session.setClosingInventory(false);
 
-        if (windowId == -1 && session.getOpenInventory() instanceof MerchantContainer) {
+        if (bedrockId == -1 && session.getOpenInventory() instanceof MerchantContainer) {
             // 1.16.200 - window ID is always -1 sent from Bedrock
-            windowId = (byte) session.getOpenInventory().getId();
+            bedrockId = (byte) session.getOpenInventory().getBedrockId();
         }
 
         Inventory openInventory = session.getOpenInventory();
         if (openInventory != null) {
-            if (windowId == openInventory.getId()) {
+            if (bedrockId == openInventory.getBedrockId()) {
-                ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(windowId);
+                ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(openInventory.getJavaId());
                 session.sendDownstreamPacket(closeWindowPacket);
-                InventoryUtils.closeInventory(session, windowId, false);
+                InventoryUtils.closeInventory(session, openInventory.getJavaId(), false);
             } else if (openInventory.isPending()) {
                 InventoryUtils.displayInventory(session, openInventory);
                 openInventory.setPending(false);

core/src/main/java/org/geysermc/geyser/translator/protocol/bedrock/BedrockInventoryTransactionTranslator.java

@@ -114,7 +114,7 @@ public class BedrockInventoryTransactionTranslator extends PacketTranslator<Inve
                                 changedItem = Int2ObjectMaps.singleton(hotbarSlot, itemStack.getItemStack());
                             }
                             ServerboundContainerClickPacket dropPacket = new ServerboundContainerClickPacket(
-                                    inventory.getId(), inventory.getStateId(), hotbarSlot, clickType.actionType, clickType.action,
+                                    inventory.getJavaId(), inventory.getStateId(), hotbarSlot, clickType.actionType, clickType.action,
                                     inventory.getCursor().getItemStack(), changedItem);
                             session.sendDownstreamPacket(dropPacket);
                             return;
@@ -371,7 +371,7 @@ public class BedrockInventoryTransactionTranslator extends PacketTranslator<Inve
                                         changedSlots.put(bedrockHotbarSlot, armorSlotItem.getItemStack());
 
                                         ServerboundContainerClickPacket clickPacket = new ServerboundContainerClickPacket(
-                                                playerInventory.getId(), playerInventory.getStateId(), armorSlot,
+                                                playerInventory.getJavaId(), playerInventory.getStateId(), armorSlot,
                                                 click.actionType, click.action, null, changedSlots);
                                         session.sendDownstreamPacket(clickPacket);
                                     }

core/src/main/java/org/geysermc/geyser/translator/protocol/bedrock/BedrockLecternUpdateTranslator.java

@@ -68,9 +68,9 @@ public class BedrockLecternUpdateTranslator extends PacketTranslator<LecternUpda
 
             if (lecternContainer.getCurrentBedrockPage() == packet.getPage()) {
                 // The same page means Bedrock is closing the window
-                ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(lecternContainer.getId());
+                ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(lecternContainer.getJavaId());
                 session.sendDownstreamPacket(closeWindowPacket);
-                InventoryUtils.closeInventory(session, lecternContainer.getId(), false);
+                InventoryUtils.closeInventory(session, lecternContainer.getJavaId(), false);
             } else {
                 // Each "page" Bedrock gives to us actually represents two pages (think opening a book and seeing two pages)
                 // Each "page" on Java is just one page (think a spiral notebook folded back to only show one page)
@@ -82,12 +82,12 @@ public class BedrockLecternUpdateTranslator extends PacketTranslator<LecternUpda
                 // is a byte when transmitted over the network and therefore this stops us at 128
                 if (newJavaPage > currentJavaPage) {
                     for (int i = currentJavaPage; i < newJavaPage; i++) {
-                        ServerboundContainerButtonClickPacket clickButtonPacket = new ServerboundContainerButtonClickPacket(session.getOpenInventory().getId(), 2);
+                        ServerboundContainerButtonClickPacket clickButtonPacket = new ServerboundContainerButtonClickPacket(session.getOpenInventory().getJavaId(), 2);
                         session.sendDownstreamPacket(clickButtonPacket);
                     }
                 } else {
                     for (int i = currentJavaPage; i > newJavaPage; i--) {
-                        ServerboundContainerButtonClickPacket clickButtonPacket = new ServerboundContainerButtonClickPacket(session.getOpenInventory().getId(), 1);
+                        ServerboundContainerButtonClickPacket clickButtonPacket = new ServerboundContainerButtonClickPacket(session.getOpenInventory().getJavaId(), 1);
                         session.sendDownstreamPacket(clickButtonPacket);
                     }
                 }

core/src/main/java/org/geysermc/geyser/translator/protocol/java/inventory/JavaContainerCloseTranslator.java

@@ -38,6 +38,6 @@ public class JavaContainerCloseTranslator extends PacketTranslator<ClientboundCo
     public void translate(GeyserSession session, ClientboundContainerClosePacket packet) {
         // Sometimes the server can request a window close of ID 0... when the window isn't even open
         // Don't confirm in this instance
-        InventoryUtils.closeInventory(session, packet.getContainerId(), (session.getOpenInventory() != null && session.getOpenInventory().getId() == packet.getContainerId()));
+        InventoryUtils.closeInventory(session, packet.getContainerId(), (session.getOpenInventory() != null && session.getOpenInventory().getJavaId() == packet.getContainerId()));
     }
 }

core/src/main/java/org/geysermc/geyser/translator/protocol/java/inventory/JavaMerchantOffersTranslator.java

@@ -54,7 +54,7 @@ public class JavaMerchantOffersTranslator extends PacketTranslator<ClientboundMe
     @Override
     public void translate(GeyserSession session, ClientboundMerchantOffersPacket packet) {
         Inventory openInventory = session.getOpenInventory();
-        if (!(openInventory instanceof MerchantContainer merchantInventory && openInventory.getId() == packet.getContainerId())) {
+        if (!(openInventory instanceof MerchantContainer merchantInventory && openInventory.getJavaId() == packet.getContainerId())) {
             return;
         }
 

core/src/main/java/org/geysermc/geyser/translator/protocol/java/inventory/JavaOpenScreenTranslator.java

@@ -49,7 +49,7 @@ public class JavaOpenScreenTranslator extends PacketTranslator<ClientboundOpenSc
         // No translator exists for this window type. Close all windows and return.
         if (newTranslator == null) {
             if (openInventory != null) {
-                InventoryUtils.closeInventory(session, openInventory.getId(), true);
+                InventoryUtils.closeInventory(session, openInventory.getJavaId(), true);
             }
             ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(packet.getContainerId());
             session.sendDownstreamPacket(closeWindowPacket);
@@ -64,7 +64,7 @@ public class JavaOpenScreenTranslator extends PacketTranslator<ClientboundOpenSc
             // In rare cases, inventories can do funny things where it keeps the same window type up but change the contents.
             if (openInventory.getContainerType() != packet.getType()) {
                 // Sometimes the server can double-open an inventory with the same ID - don't confirm in that instance.
-                InventoryUtils.closeInventory(session, openInventory.getId(), openInventory.getId() != packet.getContainerId());
+                InventoryUtils.closeInventory(session, openInventory.getJavaId(), openInventory.getJavaId() != packet.getContainerId());
             }
         }
 

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

@@ -90,7 +90,7 @@ public class InventoryUtils {
             if (translator instanceof DoubleChestInventoryTranslator && !((Container) inventory).isUsingRealBlock()) {
                 session.scheduleInEventLoop(() -> {
                     Inventory openInv = session.getOpenInventory();
-                    if (openInv != null && openInv.getId() == inventory.getId()) {
+                    if (openInv != null && openInv.getJavaId() == inventory.getJavaId()) {
                         translator.openInventory(session, inventory);
                         translator.updateInventory(session, inventory);
                     } else if (openInv != null && openInv.isPending()) {
@@ -108,11 +108,11 @@ public class InventoryUtils {
         }
     }
 
-    public static void closeInventory(GeyserSession session, int windowId, boolean confirm) {
+    public static void closeInventory(GeyserSession session, int javaId, boolean confirm) {
         session.getPlayerInventory().setCursor(GeyserItemStack.EMPTY, session);
         updateCursor(session);
 
-        Inventory inventory = getInventory(session, windowId);
+        Inventory inventory = getInventory(session, javaId);
         if (inventory != null) {
             InventoryTranslator translator = session.getInventoryTranslator();
             translator.closeInventory(session, inventory);
@@ -124,12 +124,12 @@ public class InventoryUtils {
         session.setOpenInventory(null);
     }
 
-    public static Inventory getInventory(GeyserSession session, int windowId) {
+    public static Inventory getInventory(GeyserSession session, int javaId) {
-        if (windowId == 0) {
+        if (javaId == 0) {
             return session.getPlayerInventory();
         } else {
             Inventory openInventory = session.getOpenInventory();
-            if (openInventory != null && windowId == openInventory.getId()) {
+            if (openInventory != null && javaId == openInventory.getJavaId()) {
                 return openInventory;
             }
             return null;