https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/util/Vector.html#toLocation(org.bukkit.World)
and
https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/util/Vector.html#toLocation(org.bukkit.World,float,float)
require a NotNull World
but https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/Location.html#%3Cinit%3E(org.bukkit.World,double,double,double)
allows for Nullable world

i believe Vectors should allow Nullable world on toLocation methods