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">
    <module name="NewlineAtEndOfFile"/>

    <module name="FileLength">
        <property name="max" value="1500"/>
    </module>

    <module name="TreeWalker">
        <module name="AvoidStarImport">
            <property name="excludes" value="java.io,java.net,java.lang.Math"/>
            <property name="allowClassImports" value="false"/>
            <property name="allowStaticMemberImports" value="true"/>
        </module>
        <module name="IllegalImport"/>
        <module name="RedundantImport"/>
        <module name="UnusedImports"/>

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

        <module name="ArrayTypeStyle"/>
        <module name="UpperEll"/>

        <module name="LineLength">
            <property name="max" value="200"/>
        </module>
        <module name="MethodLength">
            <property name="tokens" value="METHOD_DEF"/>
            <property name="max" value="50"/>
        </module>
        <module name="ParameterNumber">
            <property name="max" value="5"/>
            <property name="ignoreOverriddenMethods" value="true"/>
            <property name="tokens" value="METHOD_DEF"/>
        </module>

        <module name="MethodParamPad"/>
        <module name="TypecastParenPad"/>
        <module name="NoWhitespaceAfter"/>
        <module name="NoWhitespaceBefore"/>
        <module name="OperatorWrap"/>
        <module name="ParenPad"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround"/>

        <module name="ModifierOrder"/>
        <module name="RedundantModifier"/>

        <module name="AvoidNestedBlocks"/>
        <module name="EmptyBlock"/>
        <module name="LeftCurly"/>
        <module name="NeedBraces"/>
        <module name="RightCurly"/>

        <module name="EmptyStatement"/>
        <module name="EqualsHashCode"/>
        <module name="HiddenField">
            <property name="tokens" value="VARIABLE_DEF"/>
        </module>
        <module name="IllegalInstantiation"/>
        <module name="InnerAssignment"/>
        <module name="MissingSwitchDefault"/>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>
    </module>
</module>