checkstyle.xml

<?xml version="1.0" encoding="UTF-8"?><!--~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  ~ Copyright (c) 2020 the qc-atlas contributors.
  ~
  ~ See the NOTICE file(s) distributed with this work for additional
  ~ information regarding copyright ownership.
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
  ~
  ~     http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~-->

<!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="FileLength"/>
    <module name="LineLength">
        <property name="max" value="150"/>
    </module>
    <module name="FileTabCharacter"/>
    <module name="TreeWalker">
        <module name="AvoidStarImport">
            <property name="severity" value="warning"/>
        </module>
        <module name="AvoidNestedBlocks">
            <property name="allowInSwitchCase" value="true"/>
        </module>
        <module name="EmptyBlock">
            <property name="tokens" value="LITERAL_DEFAULT"/>
        </module>
        <module name="EmptyCatchBlock">
            <property name="exceptionVariableName" value="expected|ignore"/>
        </module>
        <module name="FinalClass"/>
        <module name="HideUtilityClassConstructor"/>
        <module name="InnerTypeLast"/>
        <module name="InterfaceIsType"/>
        <module name="OneTopLevelClass"/>
        <module name="ThrowsCount"/>
        <module name="VisibilityModifier"/>
        <module name="AvoidNoArgumentSuperConstructorCall"/>
        <module name="CovariantEquals"/>
        <module name="DeclarationOrder"/>
        <module name="DefaultComesLast"/>
        <module name="EmptyStatement"/>
        <module name="EqualsAvoidNull"/>
        <module name="EqualsHashCode"/>
        <module name="ExplicitInitialization"/>
        <module name="FallThrough"/>
        <module name="FinalLocalVariable"/>
        <module name="IllegalCatch"/>
        <module name="IllegalThrows"/>
        <module name="IllegalToken"/>
        <module name="IllegalType"/>
        <module name="InnerAssignment"/>
        <module name="MagicNumber"/>
        <module name="MissingSwitchDefault"/>
        <module name="ModifiedControlVariable"/>
        <module name="MultipleVariableDeclarations"/>
        <module name="NestedForDepth"/>
        <module name="NestedIfDepth"/>
        <module name="NestedTryDepth"/>
        <module name="NoArrayTrailingComma"/>
        <module name="NoClone"/>
        <module name="NoEnumTrailingComma"/>
        <module name="NoFinalizer"/>
        <module name="OneStatementPerLine"/>
        <module name="OverloadMethodsDeclarationOrder"/>
        <module name="PackageDeclaration"/>
        <module name="ParameterAssignment"/>
        <module name="SimplifyBooleanExpression"/>
        <module name="SimplifyBooleanReturn"/>
        <module name="StringLiteralEquality"/>
        <module name="SuperClone"/>
        <module name="SuperFinalize"/>
        <module name="UnnecessaryParentheses"/>
        <module name="UnnecessarySemicolonAfterTypeMemberDeclaration"/>
        <module name="UnnecessarySemicolonInEnumeration"/>
        <module name="UnnecessarySemicolonInTryWithResources"/>
        <module name="VariableDeclarationUsageDistance"/>
        <module name="CustomImportOrder">
            <property name="customImportOrderRules"
                      value="STATIC###STANDARD_JAVA_PACKAGE###SPECIAL_IMPORTS###THIRD_PARTY_PACKAGE"/>
            <property name="specialImportsRegExp" value="^org\."/>
            <property name="thirdPartyPackageRegExp" value="^com\."/>
            <property name="sortImportsInGroupAlphabetically" value="true"/>
            <property name="separateLineBetweenGroups" value="true"/>
        </module>

        <module name="RedundantImport"/>
        <module name="UnusedImports"/>
        <module name="BooleanExpressionComplexity"/>
        <module name="CommentsIndentation"/>
<!--        <module name="Indentation"/>-->
        <module name="OuterTypeFilename"/>
        <module name="TodoComment"/>
        <module name="TrailingComment"/>
        <module name="ModifierOrder"/>
        <module name="ParameterNumber"/>
        <module name="GenericWhitespace"/>
        <module name="NoWhitespaceAfter"/>
        <module name="NoWhitespaceBefore"/>
        <module name="EmptyLineSeparator"/>
        <module name="GenericWhitespace"/>
        <module name="MethodParamPad"/>
        <module name="NoLineWrap"/>
        <module name="NoWhitespaceAfter"/>
        <module name="NoWhitespaceBefore">
            <property name="allowLineBreaks" value="true"/>
        </module>
        <module name="ParenPad">
            <property name="option" value="nospace"/>
        </module>
        <module name="SingleSpaceSeparator"/>
        <module name="TypecastParenPad"/>
        <module name="WhitespaceAfter"/>
        <module name="WhitespaceAround"/>
    </module>

</module>