Block.setType(Material.END_CRYSTAL) throws NullPointerException

[uprial]

Expected behavior

block.setType(Material.END_CRYSTAL)

works

Observed/Actual behavior

code throws an exception:

[14:47:44 ERROR]: Could not pass event EntityDamageByEntityEvent to RailNet v0.1.2
java.lang.NullPointerException: null
	at java.base/java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1693) ~[?:?]
	at org.bukkit.craftbukkit.block.data.CraftBlockData.newData(CraftBlockData.java:576) ~[paper-1.21.3.jar:1.21.3-83-d6c81da]
	at org.bukkit.craftbukkit.CraftServer.createBlockData(CraftServer.java:2842) ~[paper-1.21.3.jar:1.21.3-83-d6c81da]
	at org.bukkit.craftbukkit.CraftServer.createBlockData(CraftServer.java:2817) ~[paper-1.21.3.jar:1.21.3-83-d6c81da]
	at org.bukkit.Bukkit.createBlockData(Bukkit.java:2463) ~[paper-api-1.21.3-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.Material.createBlockData(Material.java:4984) ~[paper-api-1.21.3-R0.1-SNAPSHOT.jar:?]
	at org.bukkit.craftbukkit.block.CraftBlock.setType(CraftBlock.java:182) ~[paper-1.21.3.jar:1.21.3-83-d6c81da]
	at org.bukkit.craftbukkit.block.CraftBlock.setType(CraftBlock.java:176) ~[paper-1.21.3.jar:1.21.3-83-d6c81da]
	at RailNet-0.1.2.jar/com.gmail.uprial.railnet.listeners.NastyEnderDragonListener.onEntityDamageByEntity(NastyEnderDragonListener.java:146) ~[RailNet-0.1.2.jar:?]

Steps/models to reproduce

If I replace
block.setType(Material.END_CRYSTAL);
to
block.setType(Material.GOLD_BLOCK);

then everything works fine: block type is set properly.

Plugin and Datapack List

my own plugin

Paper version

paper-1.21.3-83

Other

No response

[Siebrenvde]

End Crystals are entities, not blocks

[lynxplay]

The only thing we could do here is improve the error message but yea, Material#END_CRYSTAL refers to the item, it is not backed by a block.

[Doc94]

The only thing we could do here is improve the error message but yea, Material#END_CRYSTAL refers to the item, it is not backed by a block.

just for reference... NPE is only in that version since 0a04c3f throws a better message for non-block Material