src/test/resources/com/puppycrawl/tools/checkstyle/configurationloader/InputConfigurationLoaderChecks.xml

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.1//EN"
    "http://checkstyle.sourceforge.net/dtds/configuration_1_1.dtd">

<module name="Checker">
    <metadata name="any-possible-value" value="just smth"/>
    
    <property name="tabWidth" value="4" />
    <property name="basedir" value="${checkstyle.basedir}" />
    <module name="TreeWalker">
        <module name="AvoidStarImport"/>
        <module name="MemberName">
            <property name="format" value="^m_[a-zA-Z0-9]*$"/>
        </module>
        <property name="testName" value="testValue" />
        <module name="ConstantName"/>
        <module name="EmptyBlock"/>
        <module name="EqualsHashCode"/>
        <module name="FileLength"/>
        <module name="NoWhitespaceAfter">
            <property name="tokens" value="DOT"/>
            <property name="allowLineBreaks" value="true"/>
        </module>
        <module name="GenericIllegalRegexp">
            <property name="format" value="System.out.println"/>
        </module>
    </module>
    <module name="JavadocPackage"/>
    <module name="Translation"/>
</module>