default-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' />

        <!-- Annotations -->

        <module name='AnnotationUseStyle' />

        <!-- Block Checks -->

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

        <!-- Class Design -->

        <module name='VisibilityModifier' />
        <module name='InterfaceIsType' />

        <!-- Coding -->

        <module name='CovariantEquals' />
        <module name='EmptyStatement' />
        <module name='EqualsHashCode' />

        <module name='HiddenField'>
            <property name='ignoreConstructorParameter' value='true' />
            <property name='ignoreSetter' value='true' />
            <property name='ignoreAbstractMethods' value='true' />
        </module>

        <module name='InnerAssignment' />
        <module name='MissingSwitchDefault' />
        <module name='ModifiedControlVariable' />

        <module name='SimplifyBooleanExpression' />
        <module name='SimplifyBooleanReturn' />
        <module name='StringLiteralEquality' />
        <module name='NestedForDepth' />
        <module name='NestedIfDepth' />

        <module name='NestedTryDepth'>
            <property name='max' value='0' />
        </module>

        <module name='NoClone' />
        <module name='NoFinalizer' />

        <module name='ReturnCount'>
            <property name='max' value='4' />
        </module>

        <module name='IllegalType' />
        <module name='DeclarationOrder' />
        <module name='ParameterAssignment' />
        <module name='ExplicitInitialization' />
        <module name='DefaultComesLast' />
        <module name='FallThrough' />
        <module name='MultipleVariableDeclarations' />
        <module name='UnnecessaryParentheses' />
        <module name='OneStatementPerLine' />

        <!-- Imports -->

        <module name='IllegalImport' />
        <module name='RedundantImport' />
        <module name='UnusedImports' />

        <!-- Metrics -->

        <module name='BooleanExpressionComplexity' />
        <module name='ClassDataAbstractionCoupling' />
        <module name='ClassFanOutComplexity' />

        <module name='CyclomaticComplexity'>
            <property name='max' value='8' />
        </module>

        <module name='NPathComplexity' />
        <module name='JavaNCSS' />

        <!-- Miscellaneous -->

        <module name='UpperEll' />
        <module name='ArrayTypeStyle' />
        <module name='Indentation' />
        <module name='OuterTypeFilename' />

        <!-- Modifiers -->

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

        <!--- Naming Conventions -->

        <module name='AbstractClassName' />
        <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' />

        <!-- Size Violations -->

        <module name='ExecutableStatementCount' />

        <module name='LineLength'>
            <property name='max' value='120' />
        </module>

        <module name='MethodLength'>
            <property name='max' value='30' />
            <property name='countEmpty' value='false' />
        </module>

        <module name='AnonInnerLength' />

        <module name='ParameterNumber'>
            <property name='max' value='4' />
        </module>

        <module name='OuterTypeNumber' />

        <module name='MethodCount'>
            <property name='maxTotal' value='20' />
            <property name='maxPrivate' value='20' />
            <property name='maxPackage' value='20' />
            <property name='maxProtected' value='20' />
            <property name='maxPublic' value='20' />
        </module>

        <!-- Whitespace -->

        <module name='GenericWhitespace' />
        <module name='EmptyForInitializerPad' />
        <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'>
            <property name='tokens' value='SEMI, DOT, POST_DEC, POST_INC' />
            <property name='allowLineBreaks' value='true' />
        </module>

        <module name='OperatorWrap'>
            <property name='option' value='eol' />
        </module>

        <module name='ParenPad' />
        <module name='TypecastParenPad' />
        <module name='WhitespaceAfter' />

        <module name='WhitespaceAround'>
            <property name='allowEmptyConstructors' value='true' />
            <property name='allowEmptyMethods' value='true' />
        </module>

    </module>

    <!-- File Length -->

    <module name='FileLength'>
        <property name='max' value='300' />
    </module>

</module>