Guys I am getting error when using ItemStack puste = new ItemStack(Material.YELLOW_STAINED_GLASS_PANE, 1); I am using 1.18 API with 1.8.8 Paper, already tried STAINED_GLASS_PANE, amount, short etc. Sorry for my bad English.
@timtower it's not possible in Intellij Idea, there is 1.12+ but I use 1.8.8 paper EDIT: changed the api version to 1.8, glass still not working tho EDIT by Moderator: merged posts, please use the edit button instead of double posting.