can I get away with empty classes?

desktopRuntime/resources/assets/minecraft/lang/en_US.lang

@@ -1582,7 +1582,8 @@ item.prismarineShard.name=Prismarine Shard
 item.prismarineCrystals.name=Prismarine Crystals
 item.iceball.name=Iceball
 item.rock.name=Rock
-item.crystalStaff.name=Crystal Staff
+item.crystal_staff.name=Crystal Staff
+item.magic_book.name=Book Of Wizardry
 
 container.inventory=Inventory
 container.hopper=Item Hopper

desktopRuntime/resources/assets/minecraft/models/item/magic_book.json

@@ -0,0 +1,18 @@
+{
+    "parent": "builtin/generated",
+    "textures": {
+        "layer0": "items/magic_book"
+    },
+    "display": {
+        "thirdperson": {
+            "rotation": [ -90, 0, 0 ],
+            "translation": [ 0, 1, -3 ],
+            "scale": [ 0.55, 0.55, 0.55 ]
+        },
+        "firstperson": {
+            "rotation": [ 0, -135, 25 ],
+            "translation": [ 0, 4, 2 ],
+            "scale": [ 1.7, 1.7, 1.7 ]
+        }
+    }
+}

src/main/java/net/ice/gui/BookGUI.java

@@ -0,0 +1,5 @@
+package net.ice.gui;
+
+public class BookGUI {
+
+}

src/main/java/net/ice/spell/Spell.java

@@ -0,0 +1,5 @@
+package net.ice.spell;
+
+public class Spell {
+
+}

src/main/java/net/minecraft/client/renderer/entity/RenderItem.java

@@ -1061,6 +1061,7 @@ public ModelResourceLocation getModelLocation(ItemStack var1) {
 		this.registerItem(Items.iceball, "iceball");
 		this.registerItem(Items.crystal_staff, "crystal_staff");
 		this.registerItem(Items.rock, "rock");
+		this.registerItem(Items.magic_book, "magic_book");
 		this.registerItem(Items.record_13, "record_13");
 		this.registerItem(Items.record_cat, "record_cat");
 		this.registerItem(Items.record_blocks, "record_blocks");

src/main/java/net/minecraft/init/Items.java

@@ -208,6 +208,7 @@ public class Items {
 	public static Item iceball;
 	public static Item crystal_staff;
 	public static Item rock;
+	public static Item magic_book;
 	public static Item ruby;
 	public static Item record_13;
 	public static Item record_cat;
@@ -409,6 +410,7 @@ static void doBootstrap() {
 			iceball = getRegisteredItem("iceball");
 			crystal_staff = getRegisteredItem("crystal_staff");
 			rock = getRegisteredItem("rock");
+			magic_book = getRegisteredItem("magic_book");
 			record_13 = getRegisteredItem("record_13");
 			record_cat = getRegisteredItem("record_cat");
 			record_blocks = getRegisteredItem("record_blocks");

src/main/java/net/minecraft/item/Item.java

@@ -1036,6 +1036,7 @@ public String apply(ItemStack itemstack) {
 		registerItem(434, (String) "rock", (new ItemRock()).setUnlocalizedName("rock"));
 		registerItem(436, (String) "ruby",
 				(new Item()).setUnlocalizedName("ruby").setCreativeTab(CreativeTabs.tabMaterials));
+		registerItem(437, (String) "magic_book", (new ItemMagicBook()).setUnlocalizedName("magicBook"));
 		registerItem(2256, (String) "record_13", (new ItemRecord("13")).setUnlocalizedName("record"));
 		registerItem(2257, (String) "record_cat", (new ItemRecord("cat")).setUnlocalizedName("record"));
 		registerItem(2258, (String) "record_blocks", (new ItemRecord("blocks")).setUnlocalizedName("record"));

src/main/java/net/minecraft/item/ItemMagicBook.java

@@ -0,0 +1,48 @@
+package net.minecraft.item;
+
+import java.util.List;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.inventory.Slot;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.nbt.NBTTagList;
+import net.minecraft.nbt.NBTTagString;
+import net.minecraft.network.play.server.S2FPacketSetSlot;
+import net.minecraft.stats.StatList;
+import net.minecraft.util.ChatComponentProcessor;
+import net.minecraft.util.ChatComponentText;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraft.util.IChatComponent;
+import net.minecraft.util.StatCollector;
+import net.minecraft.util.StringUtils;
+import net.minecraft.world.World;
+
+/**+
+ * This portion of EaglercraftX contains deobfuscated Minecraft 1.8 source code.
+ * 
+ * Minecraft 1.8.8 bytecode is (c) 2015 Mojang AB. "Do not distribute!"
+ * Mod Coder Pack v9.18 deobfuscation configs are (c) Copyright by the MCP Team
+ * 
+ * EaglercraftX 1.8 patch files (c) 2022-2024 lax1dude, ayunami2000. All Rights Reserved.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+public class ItemMagicBook extends Item {
+	public ItemMagicBook() {
+		this.setMaxStackSize(1);
+	}
+	public boolean hasEffect(ItemStack var1) {
+		return true;
+	}
+}