spring-security/etc/checkstyle/checkstyle-suppressions.xml

<?xml version="1.0"?>
<!DOCTYPE suppressions PUBLIC
		"-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
		"https://checkstyle.org/dtds/suppressions_1_2.dtd">
<suppressions>
	<suppress files=".*" checks="SimplifyBooleanExpression" />
	<suppress files=".*" checks="SimplifyBooleanReturn" />
	<suppress files=".*" checks="SpringAvoidStaticImport" />
	<suppress files=".*" checks="SpringCatch" />
	<suppress files=".*" checks="SpringHeader" />
	<suppress files=".*" checks="SpringHideUtilityClassConstructor" />
	<suppress files=".*" checks="SpringJavadoc" />
	<suppress files=".*" checks="SpringLambda" />
	<suppress files=".*" checks="SpringMethodOrder" />
	<suppress files=".*" checks="SpringMethodVisibility" />
	<suppress files=".*" checks="SpringTernary" />
	<suppress files=".*" checks="WhitespaceAfter" />
	<suppress files=".*" checks="WhitespaceAround" />
	<suppress files=".*" checks="JavadocMethod" />
	<suppress files=".*" checks="JavadocStyle" />
	<suppress files=".*" checks="JavadocTagContinuationIndentation" />
	<suppress files=".*" checks="JavadocType" />
	<suppress files=".*" checks="JavadocVariable" />
	<suppress files=".*" checks="NonEmptyAtclauseDescription" />

	<!-- Ignore third-party code -->
	<suppress files="BCrypt\.java|BCryptTests\.java" checks=".*"/>
	<suppress files="org[\\/]springframework[\\/]security[\\/]core[\\/]ComparableVersion\.java" checks=".*"/>

	<!-- InterfaceIsType rules we can't fix until a major revision due to back compatibility -->
	<suppress files="JwsAlgorithms\.java" checks="InterfaceIsType"/>
	<suppress files="JwtClaimNames\.java" checks="InterfaceIsType"/>
	<suppress files="OAuth2ErrorCodes\.java" checks="InterfaceIsType"/>
	<suppress files="OAuth2ParameterNames\.java" checks="InterfaceIsType"/>
	<suppress files="PkceParameterNames\.java" checks="InterfaceIsType"/>
	<suppress files="IdTokenClaimNames\.java" checks="InterfaceIsType"/>
	<suppress files="OidcScopes\.java" checks="InterfaceIsType"/>
	<suppress files="StandardClaimNames\.java" checks="InterfaceIsType"/>
	<suppress files="OidcParameterNames\.java" checks="InterfaceIsType"/>
	<suppress files="BearerTokenErrorCodes\.java" checks="InterfaceIsType"/>
	<suppress files="OAuth2IntrospectionClaimNames\.java" checks="InterfaceIsType"/>
	<suppress files="Saml2ErrorCodes\.java" checks="InterfaceIsType"/>
</suppressions>