groovy-core/cruise/reporting-app/checkstyle.xml

<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.1//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_1.dtd">

<module name="Checker">
    <module name="Translation"/>   
    <module name="TreeWalker">
        <property name="cacheFile" value="target/checkstyle.cache"/>
        <property name="tabWidth" value="4"/>

        <!-- Naming conventions -->
        <module name="ConstantName"/>
        <module name="LocalFinalVariableName"/>
        <module name="LocalVariableName"/>
        <module name="MemberName"/>
        <module name="MethodName"/>
        <module name="PackageName">
            <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
        </module>
        <module name="ParameterName"/>
        <module name="StaticVariableName"/>
        <module name="TypeName"/>

        <!-- Imports -->
        <module name="AvoidStarImport"/>
        <module name="IllegalImport"/>
        <module name="RedundantImport"/>
        <module name="UnusedImports"/>

        <!-- Size violations -->
        <module name="FileLength"/>
        <module name="LineLength">
            <property name="max" value="120"/>
        </module>
        <module name="MethodLength"/>
        <module name="ParameterNumber"/>

        <!-- Whitespace -->
        <module name="NoWhitespaceAfter">
            <property name="tokens"
                value="BNOT, DEC, DOT, INC, LNOT, UNARY_MINUS, UNARY_PLUS"/>
        </module>
        <module name="NoWhitespaceBefore"/>
        <module name="OperatorWrap"/>
        <module name="ParenPad"/>
        <module name="TabCharacter"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround"/>

        <!-- Modifiers -->
        <module name="ModifierOrder"/>

        <!-- Blocks -->
        <module name="EmptyBlock">
            <property name="tokens"
                value="LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_TRY, LITERAL_WHILE, STATIC_INIT"/>
        </module>
        <module name="LeftCurly"/>
        <module name="NeedBraces"/>
        <module name="RightCurly"/>
        <module name="AvoidNestedBlocks"/>

        <!-- Checks for coding problems -->
        <module name="DoubleCheckedLocking"/>
        <module name="HiddenField">
            <property name="tokens" value="VARIABLE_DEF"/>
        </module>
        <module name="InnerAssignment"/>
        <module name="MissingSwitchDefault"/>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>
        
        <!-- Design checks -->
        <module name="VisibilityModifier">
            <property name="publicMemberPattern" value="^[a-zA-Z0-9]*$"/>
        </module>
        <module name="FinalClass"/>
        <module name="InterfaceIsType"/>
        <module name="HideUtilityClassConstructor"/>

        <!-- Miscellaneous -->
        <module name="UpperEll"/>
        <module name="ArrayTypeStyle"/>        
    </module>
</module>