Extend PotionIDs Byte -> Short

src/main/java/com/falsepattern/endlessids/mixin/mixins/common/vanilla/potion/PotionMixin.java

@@ -0,0 +1,29 @@
+package com.falsepattern.endlessids.mixin.mixins.common.vanilla.potion;
+
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Mutable;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+
+import net.minecraft.potion.Potion;
+
+@Mixin(Potion.class)
+public class PotionMixin {
+
+    @Shadow
+    @Final
+    @Mutable
+    public static Potion[] potionTypes;
+
+
+    @Inject(method = "<clinit>",
+            at = @At(value = "RETURN"),
+            require = 1)
+    private static void clinit(CallbackInfo ci) {
+        potionTypes = new Potion[32767];
+    }
+}

src/main/java/com/falsepattern/endlessids/mixin/plugin/Mixin.java

@@ -46,6 +46,9 @@ public enum Mixin implements IMixin {
     GenLayerRiverMixMixin(Side.COMMON, avoid(TargetedMod.DRAGONAPI), "vanilla.worldgen.GenLayerRiverMixMixin"),
     GenLayerVoronoiZoomMixin(Side.COMMON, always(), "vanilla.worldgen.GenLayerVoronoiZoomMixin"),
     //endregion Minecraft->common->worldgen
+    //region Minecraft->common->potion
+    PotionMixin                   (Side.COMMON, always(), "vanilla.potion.PotionMixin"),
+    //endregion Minecraft->common->potion
     //endregion Minecraft->common
     //region Minecraft->client
     ChunkMixinClient(Side.CLIENT, always(), "vanilla.ChunkMixin"),