I hate when md_5 actually decides to do stuff.

worldedit-bukkit/src/main/java/com/boydti/fawe/bukkit/wrapper/AsyncChunk.java

@@ -8,6 +8,7 @@ import org.bukkit.Chunk;
 import org.bukkit.ChunkSnapshot;
 import org.bukkit.World;
 import org.bukkit.block.BlockState;
+import org.bukkit.block.data.BlockData;
 import org.bukkit.entity.Entity;
 import org.bukkit.plugin.Plugin;
 import org.jetbrains.annotations.NotNull;
@@ -191,4 +192,20 @@ public class AsyncChunk implements Chunk {
     public Collection<Plugin> getPluginChunkTickets() {
         return world.getPluginChunkTickets(this.getX(), this.getZ());
     }
+
+    @Override
+    public long getInhabitedTime() {
+        return 0; //todo
+    }
+
+    @Override
+    public void setInhabitedTime(long ticks) {
+        //todo
+    }
+
+    @Override
+    public boolean contains(@NotNull BlockData block) {
+        //todo
+        return false;
+    }
 }