Fixed crash on very large packages

fabric/src/main/java/net/tonimatasdev/packetfixerfabric/mixin/SizePrependerMixin.java

@@ -0,0 +1,14 @@
+package net.tonimatasdev.packetfixerfabric.mixin;
+
+import net.minecraft.network.SizePrepender;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.Constant;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+
+@Mixin(SizePrepender.class)
+public class SizePrependerMixin {
+    @ModifyConstant(method = "encode(Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;Lio/netty/buffer/ByteBuf;)V", constant = @Constant(intValue = 3))
+    private int newSize(int value) {
+        return 8;
+    }
+}

fabric/src/main/java/net/tonimatasdev/packetfixerfabric/mixin/SplitterHandlerMixin.java

@@ -0,0 +1,14 @@
+package net.tonimatasdev.packetfixerfabric.mixin;
+
+import net.minecraft.network.SplitterHandler;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.Constant;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+
+@Mixin(SplitterHandler.class)
+public class SplitterHandlerMixin {
+    @ModifyConstant(method = "decode(Lio/netty/channel/ChannelHandlerContext;Lio/netty/buffer/ByteBuf;Ljava/util/List;)V", constant = @Constant(intValue = 3))
+    private int newSize(int value) {
+        return 8;
+    }
+}

fabric/src/main/resources/packetfixer.mixins.json

@@ -12,6 +12,8 @@
     "NbtTagSizeTrackerMixin",
     "PacketEncoderMixin",
     "PacketInflaterMixin",
+    "SizePrependerMixin",
+    "SplitterHandlerMixin",
     "compat.connectivity.PacketInflaterMixin",
     "compat.immersiveportals.CustomPayloadS2CPacketMixin"
   ],