checkstyle.xml

<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
<module name="Checker">
    <property name="charset" value="UTF-8"/>

    <module name="NewlineAtEndOfFile">
        <property name="lineSeparator" value="lf"/>
    </module>
    <module name="FileLength"/>
    <module name="FileTabCharacter"/>
    <module name="Translation"/>

    <module name="TreeWalker">
        <module name="ConstantName"/>
        <module name="LocalFinalVariableName"/>
        <module name="LocalVariableName"/>
        <module name="MemberName"/>
        <module name="MethodName"/>
        <module name="ParameterName"/>
        <module name="StaticVariableName"/>
        <module name="TypeName"/>

        <module name="AvoidStarImport"/>
        <module name="IllegalImport"/>
        <module name="RedundantImport"/>
        <module name="UnusedImports">
            <property name="processJavadoc" value="true"/>
        </module>

        <module name="LineLength">
            <property name="max" value="200"/>
        </module>
        <module name="MethodLength"/>

        <module name="GenericWhitespace"/>
        <module name="EmptyForIteratorPad"/>
        <module name="MethodParamPad"/>
        <module name="NoWhitespaceAfter">
            <property name="tokens" value="BNOT, DEC, DOT, INC, LNOT, UNARY_MINUS, UNARY_PLUS"/>
        </module>
        <module name="NoWhitespaceBefore"/>
        <module name="ParenPad"/>
        <module name="TypecastParenPad"/>
        <module name="WhitespaceAround">
            <property name="allowEmptyConstructors" value="true"/>
            <property name="allowEmptyMethods" value="true"/>
            <property name="allowEmptyTypes" value="true"/>
            <property name="allowEmptyLoops" value="true"/>
        </module>
        <module name="SingleSpaceSeparator">
            <property name="validateComments" value="true"/>
        </module>

        <module name="ModifierOrder"/>
        <module name="RedundantModifier"/>

        <module name="CovariantEquals"/>
        <module name="EmptyStatement"/>
        <module name="EqualsAvoidNull"/>
        <module name="EqualsHashCode"/>
        <module name="IllegalInstantiation"/>
        <module name="MissingSwitchDefault"/>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>

        <module name="FinalClass"/>
        <module name="InterfaceIsType"/>
        <module name="ArrayTypeStyle"/>
        <module name="UpperEll"/>
        <module name="Indentation">
            <property name="basicOffset" value="2"/>
            <property name="caseIndent" value="2"/>
            <property name="throwsIndent" value="2"/>
            <property name="arrayInitIndent" value="2"/>
            <property name="lineWrappingIndentation" value="2"/>
        </module>
        <module name="CommentsIndentation"/>

        <module name="StringLiteralEquality"/>

        <module name="NestedIfDepth">
            <property name="max" value="3"/>
        </module>
        <module name="NestedTryDepth">
            <property name="max" value="2"/>
        </module>
    </module>
</module>