checkstyle.xml

<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
        "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
        "https://checkstyle.org/dtds/configuration_1_3.dtd">

<module name="Checker">
    <property name="charset" value="UTF-8"/>
    <property name="severity" value="warning"/>
    <property name="fileExtensions" value="java, properties, xml"/>

    <!-- Excludes all 'module-info.java' files -->
    <module name="BeforeExecutionExclusionFileFilter">
        <property name="fileNamePattern" value="module-info\.java$"/>
    </module>

    <!-- Checks for Size Violations. -->
    <module name="FileLength">
        <property name="max" value="2000"/>
    </module>

    <module name="TreeWalker">
        <!-- Checks for imports - focus on unused imports -->
        <module name="AvoidStarImport"/>
        <module name="RedundantImport"/>
        <module name="UnusedImports">
            <property name="processJavadoc" value="false"/>
        </module>

        <!-- Basic coding standards -->
        <module name="EmptyStatement"/>
        <module name="ModifierOrder"/>
        <module name="RedundantModifier"/>
        <module name="EmptyBlock"/>
        <module name="LeftCurly"/>
        <module name="RightCurly"/>
        <module name="NeedBraces"/>
    </module>
</module>