checkstyle.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
<module name="Checker">
    <!-- Require Javadoc for each package in a package-info.java file -->
    <module name="JavadocPackage" />
    <module name="Header">
        <property name="headerFile" value="java.header" />
        <property name="fileExtensions" value="java" />
    </module>
    <module name="TreeWalker">
        <!-- Require Javadoc for each type -->
        <module name="JavadocType">
            <property name="severity" value="warning"/>
            <property name="authorFormat"
                value="(Mike Bryant \(http(s)?://github.com/mikesname(/)?\)|Ben Companjen \(http(s)?://github.com/bencomp(/)?\)|Linda Reijnhoudt \(http(s)?://github.com/lindareijnhoudt(/)?\)|Paul Boon \(http(s)?://github.com/(paulboon|PaulBoon)(/)?\))" />
        </module>
        <module name="AvoidStarImport" />
        <module name="EmptyBlock" />
    </module>
</module>