The provided source code package is missing files

I am using version 5.2.2 of the service and downloaded the source code of version 5.2.2 from the tag. I found that there were a few missing files under `org. graylog. plugins. ipelineprocessor. parser`, which caused problems with project startup. I had to find the classes of these missing files in the jar package of the graylog Docker image, decompile them into Java files, and put them in the source code project to start the service normally. Please check the missing files and upload them to the repository to avoid similar problems for others.