Error jar hell in installing my own elastic plugin

Elastic Stack Elasticsearch
1

Hi! I have a problem while installing my authentication plugin on elasticsearch. I get below error:

image
image.png1871×529 45.3 KB

thanks for helping me!
@elastic

2

Please don't post images of text as they are hardly readable and not searchable.

Instead paste the text and format it with </> icon. Check the preview window.

3

Apparently you are embedding Jackson within your plugin which you should not do.

4

I'm sorry, i didn't notice! I will consider your tip from now on!

5

I import Jackson in my .pom file because I wanna use some of its modules! what should i do instead?
I remove the Jackson dependency but the error just didn't go away!

6

Jackson is already provided by elasticsearch. Just don't add it.
What is the error when you remove this dependency?