Fix compile

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

@@ -75,8 +75,7 @@ import org.jetbrains.annotations.Nullable;
  *  @see #wrap(World)
  *  @see #create(WorldCreator)
  */
-public class AsyncWorld
+public class AsyncWorld extends PassthroughExtent implements World {
-    extends PassthroughExtent implements World {
 
     private World parent;
     private BukkitImplAdapter adapter;
@@ -927,6 +926,16 @@ public class AsyncWorld
         return parent.canGenerateStructures();
     }
 
+    @Override
+    public void setHardcore(boolean hardcore) {
+        parent.setHardcore(hardcore);
+    }
+
+    @Override
+    public boolean isHardcore() {
+        return parent.isHardcore();
+    }
+
     @Override
     public long getTicksPerAnimalSpawns() {
         return parent.getTicksPerAnimalSpawns();

worldedit-core/src/main/java/com/boydti/fawe/FaweAPI.java

@@ -4,6 +4,7 @@ import com.boydti.fawe.beta.IQueueExtent;
 import com.boydti.fawe.config.Settings;
 import com.boydti.fawe.object.RegionWrapper;
 import com.boydti.fawe.object.changeset.DiskStorageHistory;
+import com.boydti.fawe.object.changeset.SimpleChangeSetSummary;
 import com.boydti.fawe.object.exception.FaweException;
 import com.boydti.fawe.object.extent.LightingExtent;
 import com.boydti.fawe.regions.FaweMaskManager;

worldedit-core/src/main/java/com/boydti/fawe/object/changeset/AbstractDelegateChangeSet.java

@@ -8,6 +8,7 @@ import com.sk89q.worldedit.history.change.BlockChange;
 import com.sk89q.worldedit.history.change.Change;
 import com.sk89q.worldedit.history.change.EntityCreate;
 import com.sk89q.worldedit.history.change.EntityRemove;
+import com.sk89q.worldedit.history.changeset.ChangeSetSummary;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.world.World;
@@ -117,6 +118,11 @@ public class AbstractDelegateChangeSet extends AbstractChangeSet {
         parent.delete();
     }
 
+    @Override
+    public ChangeSetSummary summarize(Region region, boolean shallow) {
+        return parent.summarize(region, shallow);
+    }
+
     @Override
     public EditSession toEditSession(Player player) {
         return parent.toEditSession(player);

worldedit-core/src/main/java/com/boydti/fawe/object/changeset/CFIChangeSet.java

@@ -7,11 +7,16 @@ import com.boydti.fawe.object.change.CFIChange;
 import com.boydti.fawe.util.MainUtil;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.worldedit.history.change.Change;
+import com.sk89q.worldedit.history.changeset.ChangeSetSummary;
+import com.sk89q.worldedit.regions.Region;
 import com.sk89q.worldedit.world.biome.BiomeType;
+import com.sk89q.worldedit.world.block.BlockState;
+
 import java.io.File;
 import java.io.IOException;
 import java.util.Collections;
 import java.util.Iterator;
+import java.util.Map;
 import java.util.UUID;
 
 public class CFIChangeSet extends AbstractChangeSet {

worldedit-core/src/main/java/com/sk89q/worldedit/history/changeset/ChangeSet.java

@@ -98,12 +98,14 @@ public interface ChangeSet extends Closeable {
     default void delete() {}
 
     /**
-     * Get a summary of this changeset
+     * Get a summary of this changeset (or null)
      * @param region
      * @param shallow
      * @return
      */
-    ChangeSetSummary summarize(Region region, boolean shallow);
+    default ChangeSetSummary summarize(Region region, boolean shallow) {
+        return null;
+    }
 
     /**
      * Get if the changeset is empty (i.e. size == 0)