NullPointerException (Client) when using BlockTexture about particlelib

[ByteZ1337]

Hey!

I didn't know not adding "api-version" will lead to an issues sorry about that. Is there a specific reason to change it to 1.14, not 1.16?

[kaonashi97]

Hi, thanks for your fast response.

When I tested it seems that not using this will active Spigots compatibility mode for plugins of older versions. This enforces the Material enum to delegate it's calls to OBC CraftLegacy class.
Thus only calls with the "old" legacy materials (e.g. Material.LEGACY_GLASS) are working. I've never seen that myself before so I don't know exactly how it behaves.
I saw this message in log written by Spigot on startup.

[2020-10-10 22:13:42] [WARN]: Initializing Legacy Material Support. Unless you have legacy plugins and/or data this is a bug!
[2020-10-10 22:13:45] [WARN]: Legacy plugin ParticleLib v1.5.1 does not specify an api-version.

That seems to be my fault as I copied it from another plugin to test if it would break things, when using Spigot 1.16 on 1.14... but as far as I tested it worked. The earliest version is 1.13 and the latest is 1.16. I think you should take the version the most you tested. It seems that api-version tells which Materials, Blocks, etc. your plugin is supporting and older ones aren't allowed anymore. I think taking the lower most is fine as you provide an API and not a specific content aware plugin.

This should not count for Spigot versions below 1.13 as they don't know about this flag.

[ByteZ1337]

I added api-version: 1.14 to the latest ParticleLib-Plugin.jar release.
Let me know if it fixes your issue.

[kaonashi97]

I've tested with the same code as above on 1.16.3 Spigot and it worked perfectly.
Thanks for this fast fix!