fix: markDirty abstract method exception

src/main/java/dev/tilera/auracore/api/research/ResearchTableExtension.java

@@ -1,17 +1,26 @@
 package dev.tilera.auracore.api.research;
 
 import java.lang.ref.WeakReference;
+import java.lang.reflect.Method;
 
 import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.inventory.IInventory;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.world.World;
 
 public abstract class ResearchTableExtension {
 
     public WeakReference<IResearchTable>  researchTable;
+    private Method markDirty;
 
     public ResearchTableExtension(IResearchTable researchTable) {
         this.researchTable = new WeakReference<>(researchTable);
+        Class<? extends ResearchTableExtension> impl = this.getClass();
+        try {
+            markDirty = impl.getDeclaredMethod("markDirty", new Class[0]);
+        } catch (Exception e) {
+            markDirty = null;
+        }
     }
 
     public World getWorld() {
@@ -44,7 +53,17 @@ public abstract class ResearchTableExtension {
 
     public abstract void onTick();
 
-    public abstract void markDirty();
+    public void extMarkDirty() {
+        if (this instanceof IInventory) {
+            ((IInventory)this).markDirty();
+        } else if (markDirty != null) {
+            try {
+                markDirty.invoke(this);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
 
     public abstract boolean openGUI(EntityPlayer player);
 

src/main/java/dev/tilera/auracore/mixins/MixinTileResearchTable.java

@@ -70,7 +70,7 @@ public abstract class MixinTileResearchTable extends TileThaumcraft implements I
     @Inject(method = "markDirty", at = @At("TAIL"))
     public void onMarkDirty(CallbackInfo ci) {
         if (extension != null) {
-            extension.markDirty();
+            extension.extMarkDirty();
         }
     }