How to generate Baseline file?

[scscgit]

I wasn't able to find any documentation with steps how to generate the baseline file, which we define under

spotbugs {
    baselineFile = file("spotbugs-baseline.xml")
}

There are two issues about using it, but nothing about how it's generated.

• how to use baseline.xml? for example? #768
• Create baseline to detect diff #348

When I copy all <BugInstance> elements inside

<?xml version="1.0" encoding="UTF-8"?>
<FindBugsFilter
        xmlns="https://github.com/spotbugs/filter/4.8.4"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="https://github.com/spotbugs/filter/4.8.4 https://raw.githubusercontent.com/spotbugs/spotbugs/4.8.4/spotbugs/etc/findbugsfilter.xsd">
</FindBugsFilter>

(which by the way I'd like to turn into local paths for schema resolution against Gradle dependency)

I'm still getting the following error:

The following errors occurred during analysis:
  Unable to read filter: C:\Project\spotbugs-baseline.xml : Failing reading C:\Project\spotbugs-baseline.xml
    org.dom4j.DocumentException: Failing reading C:\Project\spotbugs-baseline.xml
      At edu.umd.cs.findbugs.SortedBugCollection.readXML(SortedBugCollection.java:279)

I'm not even sure if it should have syntax from https://spotbugs.readthedocs.io/en/stable/filter.html

I was thinking if the SpotBugs IntelliJ IDEA Plugin could support creating baseline similar to FindBugs mentioned by https://stackoverflow.com/a/48072089, but the plugin is broken, so I can't even try.