checkstyle.xml

<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
    "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
    "http://checkstyle.sourceforge.net/dtds/configuration_1_3.dtd">

<module name="Checker">

    <module name="SuppressWarningsFilter" />

    <!--module name="NewlineAtEndOfFile"/-->
    <module name="FileLength"/>
    <module name="FileTabCharacter"/>

    <!-- Trailing spaces -->
    <module name="RegexpSingleline">
        <property name="format" value="\s+$"/>
        <property name="message" value="Line has trailing spaces."/>
    </module>

    <!-- Space after 'for' and 'if' -->
    <module name="RegexpSingleline">
        <property name="format" value="^\s*(for|if)[^ ]\("/>
        <property name="message" value="Space needed before opening parenthesis."/>
    </module>

    <!-- For each spacing -->
    <module name="RegexpSingleline">
        <property name="format" value="^\s*for \(.*?([^ ]:|:[^ ])"/>
        <property name="message" value="Space needed around ':' character."/>
    </module>

    <module name="TreeWalker">
        <!--<property name="cacheFile" value="${checkstyle.cache.file}"/>-->

        <!-- Checks for Javadoc comments.                     -->
        <!-- See http://checkstyle.sf.net/config_javadoc.html -->
        <!--module name="JavadocMethod"/-->
        <!--module name="JavadocType"/-->
        <!--module name="JavadocVariable"/-->
        <!--module name="JavadocStyle"/-->

        <module name="SuppressWarningsHolder" />

        <!-- Checks for Naming Conventions.                  -->
        <!-- See http://checkstyle.sf.net/config_naming.html -->
        <module name="ConstantName"/>
        <module name="LocalFinalVariableName"/>
        <module name="LocalVariableName"/>
        <module name="MemberName"/>
        <module name="MethodName">
            <property name="format" value="^[a-z][a-zA-Z0-9_]*$"/>
        </module>
        <module name="PackageName"/>
        <module name="ParameterName"/>
        <!--<module name="StaticVariableName"/>-->
        <module name="TypeName"/>


        <!-- Checks for imports                              -->
        <!-- See http://checkstyle.sf.net/config_import.html -->
        <module name="AvoidStarImport"/>
        <module name="IllegalImport"/>
        <module name="RedundantImport"/>
        <module name="UnusedImports">
            <property name="processJavadoc" value="true"/>
        </module>


        <!-- Checks for Size Violations.                    -->
        <!-- See http://checkstyle.sf.net/config_sizes.html -->
        <module name="LineLength">
            <property name="max" value="100"/>
        </module>
        <module name="MethodLength">
            <property name="max" value="200"/>
        </module>
        <!--<module name="ParameterNumber">-->
        <!--<property name="max" value="10"/>-->
        <!--</module>-->


        <!-- Checks for whitespace                               -->
        <!-- See http://checkstyle.sf.net/config_whitespace.html -->
        <module name="GenericWhitespace"/>
        <!--<module name="EmptyForIteratorPad"/>-->
        <module name="MethodParamPad"/>
        <module name="NoWhitespaceAfter"/>
        <module name="NoWhitespaceBefore"/>
        <module name="OperatorWrap"/>
        <module name="ParenPad"/>
        <module name="TypecastParenPad"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround"/>


        <!-- Modifier Checks                                    -->
        <!-- See http://checkstyle.sf.net/config_modifiers.html -->
        <module name="ModifierOrder"/>
        <module name="RedundantModifier"/>


        <!-- Checks for blocks. You know, those {}'s         -->
        <!-- See http://checkstyle.sf.net/config_blocks.html -->
        <module name="AvoidNestedBlocks"/>
        <module name="EmptyBlock"/>
        <module name="EmptyCatchBlock">
            <property name="exceptionVariableName" value="expected|ignore"/>
        </module>
        <module name="LeftCurly">
            <!-- No METHOD_DEF, because I think simple method can be one line -->
            <property name="tokens" value="INTERFACE_DEF, CLASS_DEF, ANNOTATION_DEF, ENUM_DEF,
            CTOR_DEF, ENUM_CONSTANT_DEF, LITERAL_WHILE, LITERAL_TRY, LITERAL_CATCH,
            LITERAL_FINALLY, LITERAL_SYNCHRONIZED, LITERAL_SWITCH, LITERAL_DO, LITERAL_IF,
            LITERAL_ELSE, LITERAL_FOR, STATIC_INIT, OBJBLOCK, LAMBDA"/>
        </module>
        <module name="NeedBraces">
            <property name="allowSingleLineStatement" value="true"/>
        </module>
        <module name="RightCurly"/>


        <!-- Checks for common coding problems               -->
        <!-- See http://checkstyle.sf.net/config_coding.html -->
        <!--module name="AvoidInlineConditionals"/-->
        <module name="CovariantEquals"/>
        <module name="EmptyStatement"/>
        <!--<module name="EqualsAvoidNull"/>-->
        <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"/>

        <!-- Checks for class design                         -->
        <!-- See http://checkstyle.sf.net/config_design.html -->
        <!--module name="DesignForExtension"/-->
        <!--module name="FinalClass"/-->
        <!--module name="HideUtilityClassConstructor"/-->
        <!--module name="InterfaceIsType"/-->
        <!--module name="VisibilityModifier"/-->


        <!-- Miscellaneous other checks.                   -->
        <!-- See http://checkstyle.sf.net/config_misc.html -->
        <!--module name="ArrayTypeStyle"/-->
        <!--module name="FinalParameters"/-->
        <!--module name="TodoComment"/-->
        <module name="UpperEll"/>
    </module>
</module>