Made Chunk#getSerializedData public

src/main/java/net/minestom/server/instance/Chunk.java

@@ -240,9 +240,9 @@ public abstract class Chunk implements Viewable {
     /**
      * Serialize the chunk
      *
-     * @return the serialized chunk
+     * @return the serialized chunk, can potentially be null if this chunk cannot be serialized
      */
-    protected abstract byte[] getSerializedData();
+    public abstract byte[] getSerializedData();
 
     /**
      * Get a {@link ChunkDataPacket} which should contain the full chunk

src/main/java/net/minestom/server/instance/DynamicChunk.java

@@ -10,11 +10,13 @@ import net.minestom.server.entity.pathfinding.PFBlockDescription;
 import net.minestom.server.instance.block.CustomBlock;
 import net.minestom.server.instance.block.UpdateConsumer;
 import net.minestom.server.network.packet.server.play.ChunkDataPacket;
+import net.minestom.server.reader.ChunkReader;
 import net.minestom.server.utils.MathUtils;
 import net.minestom.server.utils.binary.BinaryWriter;
 import net.minestom.server.world.biomes.Biome;
 
 import java.util.concurrent.CopyOnWriteArraySet;
+import java.util.function.Consumer;
 
 public class DynamicChunk extends Chunk {
 
@@ -150,8 +152,15 @@ public class DynamicChunk extends Chunk {
         this.blocksStateId[blockIndex] = blockStateId;
     }
 
+    /**
+     * Serialize this {@link Chunk} based on {@link ChunkReader#readChunk(byte[], Instance, int, int, Consumer)}
+     * <p>
+     * It is also used by the default {@link IChunkLoader} which is {@link MinestomBasicChunkLoader}
+     *
+     * @return the serialized chunk data
+     */
     @Override
-    protected byte[] getSerializedData() {
+    public byte[] getSerializedData() {
 
         // Used for blocks data
         Object2ShortMap<String> typeToIndexMap = new Object2ShortOpenHashMap<>();

src/main/java/net/minestom/server/instance/StaticChunk.java

@@ -58,7 +58,7 @@ public class StaticChunk extends Chunk {
     }
 
     @Override
-    protected byte[] getSerializedData() {
+    public byte[] getSerializedData() {
         return null;
     }
 

src/main/java/net/minestom/server/reader/ChunkReader.java

@@ -20,6 +20,8 @@ public class ChunkReader {
 
     /**
      * Read a chunk from a byte array, the array should contain the whole chunk and only it
+     * <p>
+     * By default you can retrieve this byte array using {@link DynamicChunk#getSerializedData()}
      *
      * @param b        the byte array containing the chunk
      * @param instance the instance of the chunk