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">
    <property name="charset" value="UTF-8"/>
    <module name="FileLength">
        <property name="max" value="5000"/>
    </module>
    <module name="FileTabCharacter"/>
    <module name="RegexpSingleline">
        <property name="format" value="System.out"/>
        <property name="message" value="Use of System.out is prohibited."/>
    </module>
    <module name="LineLength">
        <property name="max" value="180"/>
        <property name="ignorePattern" value="^ *\* .+$|^ *\/\/.*$"/>
        <property name="fileExtensions" value="java"/>
    </module>
    <module name="SuppressWarningsFilter"/>
    <module name="TreeWalker">
        <module name="SuppressionCommentFilter"/>
        <module name="SuppressWarningsHolder"/>
        <module name="ConstantName">
            <property name="applyToPrivate" value="false"/>
        </module>
        <module name="PackageName"/>
        <module name="TypeName"/>
        <module name="AvoidStarImport"/>
        <module name="IllegalImport"/>
        <module name="IllegalImport">
            <property name="illegalPkgs" value="clover, junit.framework, io.swagger.models"/>
        </module>
        <module name="RedundantImport"/>
        <module name="EmptyForIteratorPad"/>
        <module name="GenericWhitespace"/>
        <module name="MethodParamPad"/>
        <module name="NoWhitespaceAfter"/>
        <module name="NoWhitespaceBefore"/>
        <module name="ParenPad"/>
        <module name="TypecastParenPad"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround">
            <property name="tokens"
                      value="BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, EQUAL, GE, GT, LAND, LE, LITERAL_ASSERT, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF, LITERAL_RETURN, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN, NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, SL, SLIST, SL_ASSIGN, SR, SR_ASSIGN, STAR, STAR_ASSIGN, TYPE_EXTENSION_AND"/>
        </module>
        <module name="ModifierOrder"/>
        <module name="RedundantModifier">
            <property name="tokens" value="VARIABLE_DEF, ANNOTATION_FIELD_DEF"/>
        </module>
        <module name="EmptyBlock">
            <property name="option" value="text"/>
        </module>
        <module name="LeftCurly"/>
        <module name="NeedBraces"/>
        <module name="RightCurly"/>
        <module name="EmptyStatement"/>
        <module name="EmptyLineSeparator">
            <property name="allowNoEmptyLineBetweenFields" value="true"/>
            <property name="allowMultipleEmptyLines" value="false"/>
            <property name="allowMultipleEmptyLinesInsideClassMembers" value="false"/>
        </module>
        <module name="EqualsHashCode"/>
        <module name="IllegalInstantiation"/>
        <module name="MissingSwitchDefault"/>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>
        <module name="ArrayTypeStyle"/>
        <module name="UpperEll"/>
        <module name="FinalLocalVariable">
            <property name="tokens" value="VARIABLE_DEF,PARAMETER_DEF"/>
        </module>
        <module name="Indentation">
            <property name="arrayInitIndent" value="8"/>
        </module>
        <module name="CommentsIndentation"/>
        <module name="EmptyCatchBlock">
            <property name="commentFormat" value="Expected"/>
        </module>
        <module name="HideUtilityClassConstructor"/>
        <module name="UnnecessaryParentheses">
            <property name="tokens"
                      value="EXPR,IDENT,NUM_DOUBLE,NUM_FLOAT,NUM_INT,NUM_LONG,STRING_LITERAL,
                      LITERAL_NULL,LITERAL_FALSE,LITERAL_TRUE,ASSIGN,BAND_ASSIGN,BOR_ASSIGN,
                      BSR_ASSIGN,BXOR_ASSIGN,DIV_ASSIGN,MINUS_ASSIGN,MOD_ASSIGN,PLUS_ASSIGN,
                      SL_ASSIGN,SR_ASSIGN,STAR_ASSIGN,LAMBDA,TEXT_BLOCK_LITERAL_BEGIN,LAND,
                      GT,LT,GE,LE,EQUAL,NOT_EQUAL,UNARY_MINUS,UNARY_PLUS,INC,DEC,LNOT,BNOT,
                      POST_INC,POST_DEC"/>
        </module>
        <module name="UnusedImports"/>
        <module name="VariableDeclarationUsageDistance"/>
    </module>
</module>