spotbugsExcludeFilter.xml

<?xml version="1.0" encoding="UTF-8"?>
<FindBugsFilter
    xmlns="https://github.com/spotbugs/filter/3.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="https://github.com/spotbugs/filter/3.0.0 https://raw.githubusercontent.com/spotbugs/spotbugs/3.1.0/spotbugs/etc/findbugsfilter.xsd">
    
    <!-- Disable errors
     EI_EXPOSE_REP (https://spotbugs.readthedocs.io/en/stable/bugDescriptions.html#ei-may-expose-internal-representation-by-returning-reference-to-mutable-object-ei-expose-rep)
     EI_EXPOSE_REP2 (https://spotbugs.readthedocs.io/en/stable/bugDescriptions.html#ei2-may-expose-internal-representation-by-incorporating-reference-to-mutable-object-ei-expose-rep2)
     as it's not a simple code change to make the objects immutable.
     
     Also, as this nags on methods and objects from interfaces and this will be user provided code anyway, it doesn't
     make much sense to enforce immutables objects here.
    -->
    <Match>
        <Bug code="EI,EI2" />
    </Match>
    
    <!-- ignore all bugs in test classes, except for those bugs specifically relating to JUnit tests -->
    <!-- i.e. filter bug if ( classIsJUnitTest && ! bugIsRelatedToJUnit ) -->
    <Match>
        <!-- the Match filter is equivalent to a logical 'And' -->
        
        <Class name="~.*\.*Test" />
        <!-- test classes are suffixed by 'Test' -->
        
        <Not>
            <Bug code="IJU" /> <!-- 'IJU' is the code for bugs related to JUnit test code -->
        </Not>
    </Match>
</FindBugsFilter>