.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'>

    <module name='TreeWalker'>

        <property name='tabWidth' value='4' />

        <!-- Block Checks -->

        <module name='EmptyBlock' />
        <module name='LeftCurly' />
        <module name='NeedBraces' />
        <module name='RightCurly' />
        <module name='AvoidNestedBlocks' />

        <!-- Miscellaneous -->
        <module name='Indentation' />

        <!--- Naming Conventions -->

        <module name='ClassTypeParameterName' />
        <module name='ConstantName' />
        <module name='LocalFinalVariableName' />
        <module name='LocalVariableName' />
        <module name='MemberName' />
        <module name='MethodName' />
        <module name='MethodTypeParameterName' />

        <module name='PackageName'>
            <property name='format' value='^[a-z]+(\.[a-z][a-z0-9]*)*$' />
        </module>

        <module name='ParameterName' />
        <module name='StaticVariableName' />
        <module name='TypeName' />

    </module>

    <!-- File Length -->

    <module name='FileLength'>
        <property name='max' value='1000' />
    </module>

</module>