Deprecated Material

src/main/java/org/bukkit/Material.java

@@ -117,7 +117,9 @@ import org.jetbrains.annotations.Nullable;
 
 /**
  * An enum of all material IDs accepted by the official server and client
+ * @deprecated Material was split up into {@link ItemType} and {@link BlockType}
  */
+@Deprecated
 public enum Material implements Keyed, Translatable {
     //<editor-fold desc="Materials" defaultstate="collapsed">
     AIR(9648, 0),

src/main/java/org/bukkit/Registry.java

@@ -129,7 +129,9 @@ public interface Registry<T extends Keyed> extends Iterable<T> {
      * Server materials.
      *
      * @see Material
+     * @deprecated Material was split up into {@link ItemType} and {@link BlockType}
      */
+    @Deprecated
     Registry<Material> MATERIAL = new SimpleRegistry<>(Material.class, (mat) -> !mat.isLegacy());
     /**
      * Server statistics.