k-9/config/checkstyle/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">
    <!--
        If you set the basedir property below, then all reported file
        names will be relative to the specified directory. See
        http://checkstyle.sourceforge.net/5.x/config.html#Checker

        <property name="basedir" value="${basedir}"/>
    -->

    <property name="severity" value="info"/>

    <!--
    <module name="SuppressionFilter">
        <property name="file" value="${checkstyle.suppressions.file}"/>
    </module>
    -->

    <module name="FileTabCharacter">
        <property name="eachLine" value="false"/>
    </module>

    <module name="NewlineAtEndOfFile"/>

    <module name="TreeWalker">
        <property name="tabWidth" value="4"/>

        <module name="AvoidStarImport"/>
        <module name="ConstantName">
            <property name="severity" value="warning"/>
        </module>
        <module name="EmptyBlock">
            <property name="option" value="text"/>
            <property name="tokens" value="LITERAL_CATCH"/>
            <property name="severity" value="warning"/>
        </module>
        <module name="EmptyForIteratorPad"/>
        <module name="EqualsHashCode">
            <property name="severity" value="warning"/>
        </module>
        <module name="OneStatementPerLine"/>

        <!-- module name="IllegalCatch"/ -->
        <module name="IllegalImport">
            <property name="severity" value="warning"/>
        </module>
        <module name="IllegalThrows">
            <property name="severity" value="warning"/>
        </module>
        <module name="InnerAssignment">
            <property name="severity" value="warning"/>
        </module>

        <module name="LeftCurly">
            <property name="option" value="eol"/>
        </module>

        <module name="LineLength">
            <property name="max" value="140"/>
        </module>

        <module name="LocalFinalVariableName">
            <property name="severity" value="warning"/>
        </module>
        <module name="LocalVariableName">
            <property name="severity" value="warning"/>
        </module>
        <module name="MemberName">
            <property name="severity" value="warning"/>
        </module>
        <module name="MethodName">
            <property name="severity" value="warning"/>
        </module>
        <module name="MethodParamPad"/>
        <module name="ModifierOrder"/>
        <module name="NeedBraces"/>
        <module name="NoWhitespaceAfter">
            <property name="tokens" value="BNOT"/>
            <property name="tokens" value="DEC"/>
            <property name="tokens" value="DOT"/>
            <property name="tokens" value="INC"/>
            <property name="tokens" value="LNOT"/>
            <property name="tokens" value="UNARY_MINUS"/>
            <property name="tokens" value="UNARY_PLUS"/>
        </module>

        <module name="NoWhitespaceBefore"/>
        <module name="NoWhitespaceBefore">
            <property name="tokens" value="DOT"/>
            <property name="allowLineBreaks" value="true"/>
        </module>

        <module name="PackageName">
            <property name="severity" value="warning"/>
        </module>
        <module name="ParameterName">
            <property name="severity" value="warning"/>
        </module>
        <module name="ParenPad"/>
        <module name="TypecastParenPad"/>
        <module name="RedundantImport"/>
        <module name="RedundantModifier"/>
        <module name="RightCurly">
            <property name="option" value="alone"/>
            <property name="tokens" value="LITERAL_ELSE"/>
        </module>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>
        <module name="TypeName">
            <property name="severity" value="warning"/>
        </module>
        <module name="UnusedImports"/>
        <module name="UpperEll"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround"/>
        <module name="GenericWhitespace"/>

        <!--
        <module name="MissingSwitchDefault"/>
        <module name="MagicNumber"/>
        <module name="Indentation"/>

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

        <module name="EqualsAvoidNull">
            <property name="severity" value="warning"/>
        </module>
        -->

        <module name="ParameterAssignment">
            <property name="severity" value="warning"/>
        </module>

        <module name="DefaultComesLast"/>
        <module name="MissingDeprecated"/>
        <module name="MissingOverride">
            <property name="javaFiveCompatibility" value="true"/>
        </module>
        <module name="OuterTypeFilename">
            <property name="severity" value="warning"/>
        </module>
    </module>
</module>