Class org.bukkit.Material

Removed Methods
<any> getDefaultAttributeModifiers(EquipmentSlot)	Return an immutable copy of all default Attributes and their AttributeModifiers for a given EquipmentSlot.
float getSlipperiness()	Returns a value that represents how 'slippery' the block is.

 

Added Methods
<any> getItemAttributes(EquipmentSlot)	Returns an immutable multimap of attributes for the slot.
ItemRarity getItemRarity()	Returns the item rarity for the item.
String getTranslationKey()	Return the translation key for the Material, so the client can translate it into the active locale when using a TranslatableComponent.
boolean isEmpty()	@return If the type is either AIR, CAVE_AIR or VOID_AIR