checkstyle.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.2//EN" "http://www.puppycrawl.com/dtds/configuration_1_2.dtd">
<module name="Checker">
    <property name="charset" value="UTF-8"/>
    <property name="severity" value="warning" />
    <module name="TreeWalker">
        <module name="ConstantName">
            <property name="applyToPrivate" value="false" />
        </module>
        <module name="LocalFinalVariableName" />
        <module name="LocalVariableName" />
        <module name="MemberName">
            <property name="format" value="^_[a-z][a-zA-Z0-9]*$" />
            <property name="applyToPublic" value="false" />
            <property name="applyToProtected" value="false" />
        </module>
        <module name="MethodName" />
        <module name="PackageName" />
        <module name="ParameterName" />
        <module name="StaticVariableName">
            <property name="format" value="^_[a-z][a-zA-Z0-9]*$" />
            <property name="applyToPublic" value="false" />
            <property name="applyToProtected" value="false" />
        </module>
        <module name="TypeName" />
        <module name="AvoidStarImport" />
        <module name="IllegalImport" />
        <module name="RedundantImport" />
        <module name="UnusedImports" />
        <module name="MethodLength" />
        <module name="ParameterNumber" />
        <module name="EmptyForIteratorPad" />
        <module name="MethodParamPad" />
        <module name="NoWhitespaceAfter" />
        <module name="NoWhitespaceBefore" />
        <module name="OperatorWrap" />
        <module name="ParenPad" />
        <module name="TypecastParenPad" />
        <module name="WhitespaceAfter">
            <property name="tokens" value="COMMA, SEMI" />
        </module>
        <module name="WhitespaceAround">
            <property name="tokens" value="ASSIGN" />
        </module>
        <module name="RedundantModifier" />
        <module name="AvoidNestedBlocks" />
        <module name="EmptyBlock" />
        <module name="LeftCurly" />
        <module name="NeedBraces" />
        <module name="RightCurly" />
        <module name="AvoidInlineConditionals" />
        <module name="DoubleCheckedLocking" />
        <module name="EmptyStatement" />
        <module name="EqualsHashCode" />
        <module name="HiddenField" />
        <module name="IllegalInstantiation" />
        <module name="InnerAssignment" />
        <module name="MagicNumber" />
        <module name="MissingSwitchDefault" />
        <module name="RedundantThrows" />
        <module name="SimplifyBooleanExpression" />
        <module name="SimplifyBooleanReturn" />
        <module name="FinalClass" />
        <module name="HideUtilityClassConstructor" />
        <module name="InterfaceIsType" />
        <module name="VisibilityModifier">
            <property name="packageAllowed" value="true" />
            <property name="protectedAllowed" value="true" />
        </module>
        <module name="ArrayTypeStyle" />
        <module name="TodoComment" />
        <module name="UpperEll" />
        <module name="LineLength">
            <property name="max" value="120" />
        </module>
        <module name="Regexp">
            <property name="format" value=" * Copyright 2012 Anjuke Inc."/>
            <property name="duplicateLimit" value="0"/>
        </module>
        <module name="Regexp">
            <property name="format" value="System\.out\.println"/>
            <property name="illegalPattern" value="true"/>
            <property name="ignoreComments" value="true"/>
        </module>
        <module name="Regexp">
            <property name="format" value="[ \t]+$"/>
            <property name="illegalPattern" value="true"/>
            <property name="message" value="Trailing whitespace"/>
        </module>
    </module>
    <module name="FileLength" />
    <module name="FileTabCharacter" />
    <module name="RegexpSingleline">
        <property name="format" value="\s+$" />
    </module>
    <module name="NewlineAtEndOfFile">
        <property name="lineSeparator" value="lf"/>
    </module>
    <module name="Translation" />
</module>