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="error"/>

    <module name="SuppressionFilter">
        <property name="file" value="checkstyle-suppressions.xml"/>
    </module>

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

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

    <module name="FileLength">
        <property name="fileExtensions" value="java"/>
    </module>

    <module name="RegexpHeader">
        <property name="headerFile" value="checkstyle-header.txt"/>
        <property name="fileExtensions" value="jelly, properties, java" />
        <property name="id" value="header"/>
    </module>

    <module name="FileTabCharacter" />

    <module name="RegexpSingleline">
        <property name="format" value="\s+$"/>
        <property name="minimum" value="0"/>
        <property name="maximum" value="0"/>
    </module>

    <!-- Filter out Checkstyle warnings that have been suppressed with the @SuppressWarnings annotation -->
    <module name="SuppressWarningsFilter" />

    <module name="TreeWalker">
        <!-- Make the @SuppressWarnings annotations available to Checkstyle -->
        <module name="SuppressWarningsHolder" />

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

        <module name="ConstantName"/>
        <module name="EmptyBlock"/>
        <module name="EmptyForIteratorPad"/>
        <module name="EqualsHashCode"/>
        <module name="OneStatementPerLine"/>

        <module name="IllegalImport"/>
        <module name="IllegalInstantiation"/>
        <module name="IllegalThrows"/>
        <module name="InnerAssignment"/>
        <module name="JavadocType">
            <property name="authorFormat" value="\S"/>
        </module>
        <module name="JavadocStyle">
            <property name="scope" value="public"/>
        </module>

        <module name="LeftCurly">
            <property name="option" value="eol"/>
            <property name="tokens" value="CLASS_DEF"/>
            <property name="tokens" value="CTOR_DEF"/>
            <property name="tokens" value="INTERFACE_DEF"/>
            <property name="tokens" value="METHOD_DEF"/>
            <property name="tokens" value="LITERAL_CATCH"/>
            <property name="tokens" value="LITERAL_DO"/>
            <property name="tokens" value="LITERAL_ELSE"/>
            <property name="tokens" value="LITERAL_FINALLY"/>
            <property name="tokens" value="LITERAL_FOR"/>
            <property name="tokens" value="LITERAL_IF"/>
            <property name="tokens" value="LITERAL_SWITCH"/>
            <property name="tokens" value="LITERAL_SYNCHRONIZED"/>
            <property name="tokens" value="LITERAL_TRY"/>
            <property name="tokens" value="LITERAL_WHILE"/>
        </module>

        <module name="OuterTypeNumber"/>

        <module name="LocalFinalVariableName"/>
        <module name="LocalVariableName"/>
        <module name="MemberName">
            <property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
        </module>
        <module name="MethodLength">
            <property name="max" value="160"/>
            <property name="countEmpty" value="false"/>
        </module>
        <module name="MethodParamPad"/>
        <module name="ModifierOrder"/>
        <module name="NeedBraces"/>

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

        <module name="PackageName"/>
        <module name="ParameterName">
            <property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
        </module>
        <module name="ParameterNumber">
            <property name="id" value="paramNum"/>
        </module>
        <module name="TypecastParenPad"/>
        <module name="RedundantImport"/>
        <module name="RedundantModifier"/>
        <module name="RightCurly">
            <property name="option" value="same"/>
        </module>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>
        <module name="StaticVariableName">
            <property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
        </module>
        <module name="TypeName"/>
        <module name="UnusedImports"/>
        <module name="UpperEll"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround"/>
        <module name="GenericWhitespace"/>
        <module name="FinalClass"/>
        <module name="MissingSwitchDefault"/>
        <!--module name="MagicNumber"/-->
        <module name="Indentation">
          <property name="caseIndent" value="0"/>
        </module>
        <module name="ArrayTrailingComma"/>
        <module name="EqualsAvoidNull"/>
        <module name="ParameterAssignment"/>

        <!-- Generates quite a few errors -->
        <module name="CyclomaticComplexity">
            <property name="severity" value="ignore"/>
        </module>

        <module name="NestedForDepth">
            <property name="max" value="2"/>
        </module>
        <module name="NestedIfDepth">
            <property name="max" value="4"/>
        </module>
        <module name="NestedTryDepth">
            <property name="max" value="2"/>
        </module>
        <!--module name="ExplicitInitialization"/-->
        <module name="AnnotationUseStyle"/>
        <module name="MissingDeprecated"/>
        <module name="MissingOverride">
            <property name="javaFiveCompatibility" value="true"/>
        </module>
        <module name="PackageAnnotation"/>
        <module name="SuppressWarnings"/>
        <module name="OuterTypeFilename"/>
        <module name="HideUtilityClassConstructor"/>
    </module>
</module>