fe/check/checkstyle/checkstyle.xml - doris - Git at Google

 <?xml version="1.0"?>
 <!--
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you 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
         "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
         "https://checkstyle.org/dtds/configuration_1_3.dtd">

 <module name = "Checker">
     <property name="charset" value="UTF-8"/>
     <property name="severity" value="error"/>
     <property name="fileExtensions" value="java"/>
     <!-- Excludes all 'module-info.java' files              -->
     <!-- See https://checkstyle.org/config_filefilters.html -->
     <module name="BeforeExecutionExclusionFileFilter">
         <property name="fileNamePattern" value="module\-info\.java$"/>
     </module>

     <module name="SuppressionFilter">
         <property name="file" value="check/checkstyle/suppressions.xml"/>
         <property name="optional" value="true"/>
     </module>
     <module name="SuppressWithPlainTextCommentFilter">
         <property name="offCommentFormat" value="CHECKSTYLE OFF"/>
         <property name="onCommentFormat" value="CHECKSTYLE ON"/>
     </module>

     <module name="FileTabCharacter">
         <property name="eachLine" value="true"/>
     </module>
     <module name="Header">
         <property name="headerFile" value="check/checkstyle/checkstyle-apache-header.txt"/>
         <property name="fileExtensions" value="java"/>
     </module>
     <module name="LineLength">
         <property name="fileExtensions" value="java"/>
         <property name="max" value="120"/>
         <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
     </module>
     <module name="NewlineAtEndOfFile">
         <property name="lineSeparator" value="lf"/>
     </module>

     <module name="RegexpSingleline">
         <property name="format" value="&lt;&lt;&lt;&lt;&lt;&lt;&lt;"/>
         <property name="message" value="Merge conflicts unresolved."/>
     </module>
     <module name="RegexpSingleline">
         <property name="format" value="\s+$"/>
         <property name="message" value="Trailing whitespace found."/>
         <property name="fileExtensions" value=".java"/>
     </module>

     <module name="TreeWalker">
         <!-- filter -->
         <module name="SuppressWithNearbyCommentFilter">
             <property name="commentFormat" value="CHECKSTYLE IGNORE THIS LINE"/>
         </module>
         <!-- Annotations -->
         <module name="AnnotationLocation">
             <property name="id" value="AnnotationLocationMostCases"/>
             <property name="tokens"
                       value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF,
                       RECORD_DEF, COMPACT_CTOR_DEF"/>
         </module>
         <module name="AnnotationLocation">
             <property name="id" value="AnnotationLocationVariables"/>
             <property name="tokens" value="VARIABLE_DEF"/>
             <property name="allowSamelineMultipleAnnotations" value="true"/>
         </module>
         <module name="MissingOverride"/>

         <!-- Block Checks -->
         <module name="EmptyBlock">
             <property name="option" value="TEXT"/>
             <property name="tokens"
                       value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
         </module>
         <module name="EmptyCatchBlock">
             <property name="exceptionVariableName" value="expected"/>
         </module>
         <module name="NeedBraces">
             <property name="tokens"
                       value="LITERAL_DO, LITERAL_ELSE, LITERAL_FOR, LITERAL_IF, LITERAL_WHILE"/>
         </module>
         <module name="LeftCurly">
             <property name="tokens"
                       value="ANNOTATION_DEF, CLASS_DEF, CTOR_DEF, ENUM_CONSTANT_DEF, ENUM_DEF,
                     INTERFACE_DEF, LAMBDA, LITERAL_CASE, LITERAL_CATCH, LITERAL_DEFAULT,
                     LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF,
                     LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, METHOD_DEF,
                     OBJBLOCK, STATIC_INIT, RECORD_DEF, COMPACT_CTOR_DEF"/>
         </module>
         <module name="RightCurly">
             <property name="id" value="RightCurlySame"/>
             <property name="tokens"
                       value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE,
                     LITERAL_DO"/>
         </module>
         <module name="RightCurly">
             <property name="id" value="RightCurlyAlone"/>
             <property name="option" value="alone"/>
             <property name="tokens"
                       value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT,
                     INSTANCE_INIT, ANNOTATION_DEF, ENUM_DEF, INTERFACE_DEF, RECORD_DEF,
                     COMPACT_CTOR_DEF"/>
         </module>
         <module name="SuppressionXpathSingleFilter">
             <!-- suppresion is required till https://github.com/checkstyle/checkstyle/issues/7541 -->
             <property name="id" value="RightCurlyAlone"/>
             <property name="query" value="//RCURLY[parent::SLIST[count(./*)=1]
                                      or preceding-sibling::*[last()][self::LCURLY]]"/>
         </module>

         <!-- Class Design -->
         <module name="OneTopLevelClass"/>

         <!-- Coding -->
         <module name="DeclarationOrder"/>
         <module name="FallThrough"/>
         <module name="IllegalTokenText">
             <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
             <property name="format"
                       value="\\u00(09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)"/>
             <property name="message"
                       value="Consider using special escape sequence instead of octal value or Unicode escaped value."/>
         </module>
         <module name="MissingSwitchDefault"/>
         <module name="MultipleVariableDeclarations"/>
         <module name="NoFinalizer"/>
         <module name="OneStatementPerLine"/>
         <module name="OverloadMethodsDeclarationOrder"/>

         <module name="StringLiteralEquality"/>
         <module name="UnusedLocalVariable"/>

         <!-- Headers -->
         <!-- Imports -->
         <module name="AvoidStarImport"/>
         <module name="AvoidStaticImport"/>
         <module name="CustomImportOrder">
             <property name="sortImportsInGroupAlphabetically" value="true"/>
             <property name="separateLineBetweenGroups" value="true"/>
             <property name="customImportOrderRules" value="SAME_PACKAGE(3)###THIRD_PARTY_PACKAGE###STANDARD_JAVA_PACKAGE"/>
             <property name="tokens" value="IMPORT, STATIC_IMPORT, PACKAGE_DEF"/>
         </module>
         <module name="ImportControl">
             <property name="file" value="check/checkstyle/import-control.xml"/>
         </module>
         <module name="RedundantImport"/>
         <module name="UnusedImports"/>
         <module name="EmptyStatement"/>
         <!-- Disallow the use of commons-lang -->
         <module name="Regexp">
             <property name="format" value="org\.apache\.commons\.lang\."/>
             <property name="illegalPattern" value="true"/>
             <property name="message" value="Use commons-lang3 instead of commons-lang."/>
         </module>
         <!-- Disallow the use of commons-collections -->
         <module name="Regexp">
             <property name="format" value="org\.apache\.commons\.collections\."/>
             <property name="illegalPattern" value="true"/>
             <property name="message" value="Use commons-collections4 instead of commons-collections."/>
         </module>

         <!-- Javadoc Comments -->
         <module name="AtclauseOrder">
             <property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
             <property name="target"
                       value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
         </module>
         <module name="InvalidJavadocPosition"/>
         <module name="JavadocMethod">
             <property name="id" value="ProductionScope"/>
             <property name="accessModifiers" value="public"/>
             <property name="allowMissingParamTags" value="true"/>
             <property name="allowMissingReturnTag" value="true"/>
             <property name="allowedAnnotations" value="Override, Test"/>
             <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF, COMPACT_CTOR_DEF"/>
         </module>

         <module name="JavadocTagContinuationIndentation"/>
         <module name="MissingJavadocMethod">
             <property name="scope" value="public"/>
             <property name="minLineCount" value="5"/>
             <property name="allowedAnnotations" value="Override, Test"/>
             <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF, COMPACT_CTOR_DEF"/>
         </module>
         <module name="MissingJavadocType">
             <property name="scope" value="protected"/>
             <property name="tokens"
                       value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, RECORD_DEF, ANNOTATION_DEF"/>
             <property name="excludeScope" value="nothing"/>
         </module>
         <module name="NonEmptyAtclauseDescription"/>
         <module name="SummaryJavadoc">
             <property name="forbiddenSummaryFragments"
                       value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>
             <property name="period" value=""/>
         </module>
         <module name="SingleLineJavadoc"/>

         <!-- Metrics -->
         <!-- Miscellaneous -->
         <module name="ArrayTypeStyle"/>
         <module name="AvoidEscapedUnicodeCharacters">
             <property name="allowEscapesForControlCharacters" value="true"/>
             <property name="allowByTailComment" value="true"/>
             <property name="allowNonPrintableEscapes" value="true"/>
         </module>
         <module name="CommentsIndentation">
             <property name="tokens" value="SINGLE_LINE_COMMENT, BLOCK_COMMENT_BEGIN"/>
         </module>
         <module name="Indentation">
             <property name="basicOffset" value="4"/>
             <property name="braceAdjustment" value="4"/>
             <property name="caseIndent" value="4"/>
             <property name="throwsIndent" value="8"/>
             <property name="lineWrappingIndentation" value="8"/>
             <property name="arrayInitIndent" value="4"/>
         </module>
         <module name="OuterTypeFilename"/>
         <module name="UpperEll"/>

         <!-- Modifiers -->
         <module name="ModifierOrder"/>

         <!-- Naming Conventions -->
         <module name="AbbreviationAsWordInName">
             <property name="ignoreFinal" value="false"/>
             <property name="allowedAbbreviationLength" value="4"/>
             <property name="tokens"
                       value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, ANNOTATION_DEF, ANNOTATION_FIELD_DEF,
                     PARAMETER_DEF, VARIABLE_DEF, METHOD_DEF, PATTERN_VARIABLE_DEF, RECORD_DEF,
                     RECORD_COMPONENT_DEF"/>
         </module>
         <module name="CatchParameterName">
             <property name="format" value="^([a-z0-9][a-zA-Z0-9]*)?$"/>
             <message key="name.invalidPattern"
                      value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="ClassTypeParameterName">
             <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*$)"/>
             <message key="name.invalidPattern"
                      value="Class type name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="InterfaceTypeParameterName">
             <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*$)"/>
             <message key="name.invalidPattern"
                      value="Interface type name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="LambdaParameterName">
             <property name="format" value="^([a-z][a-zA-Z0-9]*)?$"/>
             <message key="name.invalidPattern"
                      value="Lambda parameter name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="LocalVariableName">
             <property name="format" value="^([a-z0-9][a-zA-Z0-9]*)?$"/>
             <message key="name.invalidPattern"
                      value="Local variable name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="MemberName">
             <property name="format" value="^([a-z][a-zA-Z0-9]*)?$"/>
             <message key="name.invalidPattern"
                      value="Member name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="MethodName">
             <property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>
             <message key="name.invalidPattern"
                      value="Method name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="MethodTypeParameterName">
             <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*$)"/>
             <message key="name.invalidPattern"
                      value="Method type name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="PackageName">
             <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
             <message key="name.invalidPattern"
                      value="Package name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="ParameterName">
             <property name="format" value="^([a-z0-9][a-zA-Z0-9]*)?$"/>
             <message key="name.invalidPattern"
                      value="Parameter name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="PatternVariableName">
             <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
             <message key="name.invalidPattern"
                      value="Pattern variable name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="RecordComponentName">
             <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
             <message key="name.invalidPattern"
                      value="Record component name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="RecordTypeParameterName">
             <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*$)"/>
             <message key="name.invalidPattern"
                      value="Record type name ''{0}'' must match pattern ''{1}''."/>
         </module>
         <module name="TypeName">
             <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
                     ANNOTATION_DEF, RECORD_DEF"/>
             <message key="name.invalidPattern"
                      value="Type name ''{0}'' must match pattern ''{1}''."/>
         </module>

         <!-- Regexp -->
         <!-- Size Violations -->
         <!-- Whitespace -->
         <module name="EmptyLineSeparator">
             <property name="id" value="exceptForNereids"/>
             <property name="tokens"
                       value="PACKAGE_DEF, IMPORT, STATIC_IMPORT, CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
                     STATIC_INIT, INSTANCE_INIT, METHOD_DEF, CTOR_DEF, VARIABLE_DEF, RECORD_DEF,
                     COMPACT_CTOR_DEF"/>
             <property name="allowNoEmptyLineBetweenFields" value="true"/>
         </module>
         <module name="EmptyLineSeparator">
             <property name="id" value="forNereids"/>
             <property name="tokens"
                       value="PACKAGE_DEF, IMPORT, STATIC_IMPORT, CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
                     STATIC_INIT, INSTANCE_INIT, METHOD_DEF, CTOR_DEF, VARIABLE_DEF, RECORD_DEF,
                     COMPACT_CTOR_DEF"/>
             <property name="allowMultipleEmptyLines" value="false"/>
             <property name="allowMultipleEmptyLinesInsideClassMembers" value="false"/>
             <property name="allowNoEmptyLineBetweenFields" value="true"/>
         </module>
         <module name="GenericWhitespace">
             <message key="ws.followed"
                      value="GenericWhitespace ''{0}'' is followed by whitespace."/>
             <message key="ws.preceded"
                      value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
             <message key="ws.illegalFollow"
                      value="GenericWhitespace ''{0}'' should followed by whitespace."/>
             <message key="ws.notPreceded"
                      value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
         </module>
         <module name="MethodParamPad">
             <property name="tokens"
                       value="CTOR_DEF, LITERAL_NEW, METHOD_CALL, METHOD_DEF,
                     SUPER_CTOR_CALL, ENUM_CONSTANT_DEF, RECORD_DEF"/>
         </module>
         <module name="NoLineWrap">
             <property name="tokens" value="PACKAGE_DEF, IMPORT, STATIC_IMPORT"/>
         </module>
         <module name="NoWhitespaceBefore">
             <property name="tokens"
                       value="COMMA, SEMI, POST_INC, POST_DEC, DOT,
                     LABELED_STAT, METHOD_REF"/>
             <property name="allowLineBreaks" value="true"/>
         </module>
         <module name="NoWhitespaceBeforeCaseDefaultColon"/>
         <module name="OperatorWrap">
             <property name="option" value="NL"/>
             <property name="tokens"
                       value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR,
                     LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR, METHOD_REF,
                     TYPE_EXTENSION_AND "/>
         </module>
         <module name="ParenPad">
             <property name="tokens"
                       value="ANNOTATION, ANNOTATION_FIELD_DEF, CTOR_CALL, CTOR_DEF, DOT, ENUM_CONSTANT_DEF,
                     EXPR, LITERAL_CATCH, LITERAL_DO, LITERAL_FOR, LITERAL_IF, LITERAL_NEW,
                     LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_WHILE, METHOD_CALL,
                     METHOD_DEF, QUESTION, RESOURCE_SPECIFICATION, SUPER_CTOR_CALL, LAMBDA,
                     RECORD_DEF"/>
         </module>
         <module name="SeparatorWrap">
             <property name="id" value="SeparatorWrapDot"/>
             <property name="tokens" value="DOT"/>
             <property name="option" value="nl"/>
         </module>
         <module name="SeparatorWrap">
             <property name="id" value="SeparatorWrapComma"/>
             <property name="tokens" value="COMMA"/>
             <property name="option" value="EOL"/>
         </module>
         <module name="SeparatorWrap">
             <!-- ELLIPSIS is EOL until https://github.com/google/styleguide/issues/259 -->
             <property name="id" value="SeparatorWrapEllipsis"/>
             <property name="tokens" value="ELLIPSIS"/>
             <property name="option" value="EOL"/>
         </module>
         <module name="SeparatorWrap">
             <!-- ARRAY_DECLARATOR is EOL until https://github.com/google/styleguide/issues/258 -->
             <property name="id" value="SeparatorWrapArrayDeclarator"/>
             <property name="tokens" value="ARRAY_DECLARATOR"/>
             <property name="option" value="EOL"/>
         </module>
         <module name="SeparatorWrap">
             <property name="id" value="SeparatorWrapMethodRef"/>
             <property name="tokens" value="METHOD_REF"/>
             <property name="option" value="nl"/>
         </module>
         <module name="SingleSpaceSeparator"/>
         <module name="WhitespaceAfter">
             <property name="tokens"
                       value="COMMA, SEMI, TYPECAST, LITERAL_IF, LITERAL_ELSE,
                     LITERAL_WHILE, LITERAL_DO, LITERAL_FOR, DO_WHILE"/>
         </module>
         <module name="WhitespaceAround">
             <property name="allowEmptyConstructors" value="true"/>
             <property name="allowEmptyLambdas" value="true"/>
             <property name="allowEmptyMethods" value="true"/>
             <property name="allowEmptyTypes" value="true"/>
             <property name="allowEmptyLoops" value="true"/>
             <property name="ignoreEnhancedForColon" value="false"/>
             <property name="tokens"
                       value="ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR,
                     BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, DO_WHILE, EQUAL, GE, GT, LAMBDA, LAND,
                     LCURLY, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY,
                     LITERAL_FOR, LITERAL_IF, LITERAL_RETURN, LITERAL_SWITCH, LITERAL_SYNCHRONIZED,
                     LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN,
                     NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, RCURLY, SL, SLIST, SL_ASSIGN, SR,
                     SR_ASSIGN, STAR, STAR_ASSIGN, LITERAL_ASSERT, TYPE_EXTENSION_AND"/>
             <message key="ws.notFollowed"
                      value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)"/>
             <message key="ws.notPreceded"
                      value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
         </module>

         <module name="PackageDeclaration">
             <property name="matchDirectoryStructure" value="true"/>
         </module>

         <!-- filter -->
         <!-- https://checkstyle.org/config_filters.html#SuppressionXpathFilter -->
         <module name="SuppressionXpathFilter">
             <property name="file" value="${org.checkstyle.google.suppressionxpathfilter.config}"
                       default="checkstyle-xpath-suppressions.xml" />
             <property name="optional" value="true"/>
         </module>
     </module>
 </module>
	<?xml version="1.0"?>
	<!--
	Licensed to the Apache Software Foundation (ASF) under one
	or more contributor license agreements. See the NOTICE file
	distributed with this work for additional information
	regarding copyright ownership. The ASF licenses this file
	to you 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
	"-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
	"https://checkstyle.org/dtds/configuration_1_3.dtd">

	<module name = "Checker">
	<property name="charset" value="UTF-8"/>
	<property name="severity" value="error"/>
	<property name="fileExtensions" value="java"/>
	<!-- Excludes all 'module-info.java' files -->
	<!-- See https://checkstyle.org/config_filefilters.html -->
	<module name="BeforeExecutionExclusionFileFilter">
	<property name="fileNamePattern" value="module\-info\.java$"/>
	</module>

	<module name="SuppressionFilter">
	<property name="file" value="check/checkstyle/suppressions.xml"/>
	<property name="optional" value="true"/>
	</module>
	<module name="SuppressWithPlainTextCommentFilter">
	<property name="offCommentFormat" value="CHECKSTYLE OFF"/>
	<property name="onCommentFormat" value="CHECKSTYLE ON"/>
	</module>

	<module name="FileTabCharacter">
	<property name="eachLine" value="true"/>
	</module>
	<module name="Header">
	<property name="headerFile" value="check/checkstyle/checkstyle-apache-header.txt"/>
	<property name="fileExtensions" value="java"/>
	</module>
	<module name="LineLength">
	<property name="fileExtensions" value="java"/>
	<property name="max" value="120"/>
	<property name="ignorePattern" value="^package.\|^import.\|a href\|href\|http://\|https://\|ftp://"/>
	</module>
	<module name="NewlineAtEndOfFile">
	<property name="lineSeparator" value="lf"/>
	</module>

	<module name="RegexpSingleline">
	<property name="format" value="<<<<<<<"/>
	<property name="message" value="Merge conflicts unresolved."/>
	</module>
	<module name="RegexpSingleline">
	<property name="format" value="\s+$"/>
	<property name="message" value="Trailing whitespace found."/>
	<property name="fileExtensions" value=".java"/>
	</module>

	<module name="TreeWalker">
	<!-- filter -->
	<module name="SuppressWithNearbyCommentFilter">
	<property name="commentFormat" value="CHECKSTYLE IGNORE THIS LINE"/>
	</module>
	<!-- Annotations -->
	<module name="AnnotationLocation">
	<property name="id" value="AnnotationLocationMostCases"/>
	<property name="tokens"
	value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF,
	RECORD_DEF, COMPACT_CTOR_DEF"/>
	</module>
	<module name="AnnotationLocation">
	<property name="id" value="AnnotationLocationVariables"/>
	<property name="tokens" value="VARIABLE_DEF"/>
	<property name="allowSamelineMultipleAnnotations" value="true"/>
	</module>
	<module name="MissingOverride"/>

	<!-- Block Checks -->
	<module name="EmptyBlock">
	<property name="option" value="TEXT"/>
	<property name="tokens"
	value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
	</module>
	<module name="EmptyCatchBlock">
	<property name="exceptionVariableName" value="expected"/>
	</module>
	<module name="NeedBraces">
	<property name="tokens"
	value="LITERAL_DO, LITERAL_ELSE, LITERAL_FOR, LITERAL_IF, LITERAL_WHILE"/>
	</module>
	<module name="LeftCurly">
	<property name="tokens"
	value="ANNOTATION_DEF, CLASS_DEF, CTOR_DEF, ENUM_CONSTANT_DEF, ENUM_DEF,
	INTERFACE_DEF, LAMBDA, LITERAL_CASE, LITERAL_CATCH, LITERAL_DEFAULT,
	LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF,
	LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, METHOD_DEF,
	OBJBLOCK, STATIC_INIT, RECORD_DEF, COMPACT_CTOR_DEF"/>
	</module>
	<module name="RightCurly">
	<property name="id" value="RightCurlySame"/>
	<property name="tokens"
	value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE,
	LITERAL_DO"/>
	</module>
	<module name="RightCurly">
	<property name="id" value="RightCurlyAlone"/>
	<property name="option" value="alone"/>
	<property name="tokens"
	value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT,
	INSTANCE_INIT, ANNOTATION_DEF, ENUM_DEF, INTERFACE_DEF, RECORD_DEF,
	COMPACT_CTOR_DEF"/>
	</module>
	<module name="SuppressionXpathSingleFilter">
	<!-- suppresion is required till https://github.com/checkstyle/checkstyle/issues/7541 -->
	<property name="id" value="RightCurlyAlone"/>
	<property name="query" value="//RCURLY[parent::SLIST[count(./*)=1]
	or preceding-sibling::*[last()][self::LCURLY]]"/>
	</module>

	<!-- Class Design -->
	<module name="OneTopLevelClass"/>

	<!-- Coding -->
	<module name="DeclarationOrder"/>
	<module name="FallThrough"/>
	<module name="IllegalTokenText">
	<property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
	<property name="format"
	value="\\u00(09\|0(a\|A)\|0(c\|C)\|0(d\|D)\|22\|27\|5(C\|c))\|\\(0(10\|11\|12\|14\|15\|42\|47)\|134)"/>
	<property name="message"
	value="Consider using special escape sequence instead of octal value or Unicode escaped value."/>
	</module>
	<module name="MissingSwitchDefault"/>
	<module name="MultipleVariableDeclarations"/>
	<module name="NoFinalizer"/>
	<module name="OneStatementPerLine"/>
	<module name="OverloadMethodsDeclarationOrder"/>

	<module name="StringLiteralEquality"/>
	<module name="UnusedLocalVariable"/>

	<!-- Headers -->
	<!-- Imports -->
	<module name="AvoidStarImport"/>
	<module name="AvoidStaticImport"/>
	<module name="CustomImportOrder">
	<property name="sortImportsInGroupAlphabetically" value="true"/>
	<property name="separateLineBetweenGroups" value="true"/>
	<property name="customImportOrderRules" value="SAME_PACKAGE(3)###THIRD_PARTY_PACKAGE###STANDARD_JAVA_PACKAGE"/>
	<property name="tokens" value="IMPORT, STATIC_IMPORT, PACKAGE_DEF"/>
	</module>
	<module name="ImportControl">
	<property name="file" value="check/checkstyle/import-control.xml"/>
	</module>
	<module name="RedundantImport"/>
	<module name="UnusedImports"/>
	<module name="EmptyStatement"/>
	<!-- Disallow the use of commons-lang -->
	<module name="Regexp">
	<property name="format" value="org\.apache\.commons\.lang\."/>
	<property name="illegalPattern" value="true"/>
	<property name="message" value="Use commons-lang3 instead of commons-lang."/>
	</module>
	<!-- Disallow the use of commons-collections -->
	<module name="Regexp">
	<property name="format" value="org\.apache\.commons\.collections\."/>
	<property name="illegalPattern" value="true"/>
	<property name="message" value="Use commons-collections4 instead of commons-collections."/>
	</module>

	<!-- Javadoc Comments -->
	<module name="AtclauseOrder">
	<property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
	<property name="target"
	value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
	</module>
	<module name="InvalidJavadocPosition"/>
	<module name="JavadocMethod">
	<property name="id" value="ProductionScope"/>
	<property name="accessModifiers" value="public"/>
	<property name="allowMissingParamTags" value="true"/>
	<property name="allowMissingReturnTag" value="true"/>
	<property name="allowedAnnotations" value="Override, Test"/>
	<property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF, COMPACT_CTOR_DEF"/>
	</module>

	<module name="JavadocTagContinuationIndentation"/>
	<module name="MissingJavadocMethod">
	<property name="scope" value="public"/>
	<property name="minLineCount" value="5"/>
	<property name="allowedAnnotations" value="Override, Test"/>
	<property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF, COMPACT_CTOR_DEF"/>
	</module>
	<module name="MissingJavadocType">
	<property name="scope" value="protected"/>
	<property name="tokens"
	value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, RECORD_DEF, ANNOTATION_DEF"/>
	<property name="excludeScope" value="nothing"/>
	</module>
	<module name="NonEmptyAtclauseDescription"/>
	<module name="SummaryJavadoc">
	<property name="forbiddenSummaryFragments"
	value="^@return the *\|^This method returns \|^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>
	<property name="period" value=""/>
	</module>
	<module name="SingleLineJavadoc"/>

	<!-- Metrics -->
	<!-- Miscellaneous -->
	<module name="ArrayTypeStyle"/>
	<module name="AvoidEscapedUnicodeCharacters">
	<property name="allowEscapesForControlCharacters" value="true"/>
	<property name="allowByTailComment" value="true"/>
	<property name="allowNonPrintableEscapes" value="true"/>
	</module>
	<module name="CommentsIndentation">
	<property name="tokens" value="SINGLE_LINE_COMMENT, BLOCK_COMMENT_BEGIN"/>
	</module>
	<module name="Indentation">
	<property name="basicOffset" value="4"/>
	<property name="braceAdjustment" value="4"/>
	<property name="caseIndent" value="4"/>
	<property name="throwsIndent" value="8"/>
	<property name="lineWrappingIndentation" value="8"/>
	<property name="arrayInitIndent" value="4"/>
	</module>
	<module name="OuterTypeFilename"/>
	<module name="UpperEll"/>

	<!-- Modifiers -->
	<module name="ModifierOrder"/>

	<!-- Naming Conventions -->
	<module name="AbbreviationAsWordInName">
	<property name="ignoreFinal" value="false"/>
	<property name="allowedAbbreviationLength" value="4"/>
	<property name="tokens"
	value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, ANNOTATION_DEF, ANNOTATION_FIELD_DEF,
	PARAMETER_DEF, VARIABLE_DEF, METHOD_DEF, PATTERN_VARIABLE_DEF, RECORD_DEF,
	RECORD_COMPONENT_DEF"/>
	</module>
	<module name="CatchParameterName">
	<property name="format" value="^([a-z0-9][a-zA-Z0-9]*)?$"/>
	<message key="name.invalidPattern"
	value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="ClassTypeParameterName">
	<property name="format" value="(^[A-Z][0-9]?)$\|([A-Z][a-zA-Z0-9]*$)"/>
	<message key="name.invalidPattern"
	value="Class type name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="InterfaceTypeParameterName">
	<property name="format" value="(^[A-Z][0-9]?)$\|([A-Z][a-zA-Z0-9]*$)"/>
	<message key="name.invalidPattern"
	value="Interface type name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="LambdaParameterName">
	<property name="format" value="^([a-z][a-zA-Z0-9]*)?$"/>
	<message key="name.invalidPattern"
	value="Lambda parameter name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="LocalVariableName">
	<property name="format" value="^([a-z0-9][a-zA-Z0-9]*)?$"/>
	<message key="name.invalidPattern"
	value="Local variable name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="MemberName">
	<property name="format" value="^([a-z][a-zA-Z0-9]*)?$"/>
	<message key="name.invalidPattern"
	value="Member name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="MethodName">
	<property name="format" value="^[a-z][a-z0-9][a-zA-Z0-9_]*$"/>
	<message key="name.invalidPattern"
	value="Method name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="MethodTypeParameterName">
	<property name="format" value="(^[A-Z][0-9]?)$\|([A-Z][a-zA-Z0-9]*$)"/>
	<message key="name.invalidPattern"
	value="Method type name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="PackageName">
	<property name="format" value="^[a-z]+(\.[a-z][a-z0-9])$"/>
	<message key="name.invalidPattern"
	value="Package name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="ParameterName">
	<property name="format" value="^([a-z0-9][a-zA-Z0-9]*)?$"/>
	<message key="name.invalidPattern"
	value="Parameter name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="PatternVariableName">
	<property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
	<message key="name.invalidPattern"
	value="Pattern variable name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="RecordComponentName">
	<property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
	<message key="name.invalidPattern"
	value="Record component name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="RecordTypeParameterName">
	<property name="format" value="(^[A-Z][0-9]?)$\|([A-Z][a-zA-Z0-9]*$)"/>
	<message key="name.invalidPattern"
	value="Record type name ''{0}'' must match pattern ''{1}''."/>
	</module>
	<module name="TypeName">
	<property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
	ANNOTATION_DEF, RECORD_DEF"/>
	<message key="name.invalidPattern"
	value="Type name ''{0}'' must match pattern ''{1}''."/>
	</module>

	<!-- Regexp -->
	<!-- Size Violations -->
	<!-- Whitespace -->
	<module name="EmptyLineSeparator">
	<property name="id" value="exceptForNereids"/>
	<property name="tokens"
	value="PACKAGE_DEF, IMPORT, STATIC_IMPORT, CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
	STATIC_INIT, INSTANCE_INIT, METHOD_DEF, CTOR_DEF, VARIABLE_DEF, RECORD_DEF,
	COMPACT_CTOR_DEF"/>
	<property name="allowNoEmptyLineBetweenFields" value="true"/>
	</module>
	<module name="EmptyLineSeparator">
	<property name="id" value="forNereids"/>
	<property name="tokens"
	value="PACKAGE_DEF, IMPORT, STATIC_IMPORT, CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
	STATIC_INIT, INSTANCE_INIT, METHOD_DEF, CTOR_DEF, VARIABLE_DEF, RECORD_DEF,
	COMPACT_CTOR_DEF"/>
	<property name="allowMultipleEmptyLines" value="false"/>
	<property name="allowMultipleEmptyLinesInsideClassMembers" value="false"/>
	<property name="allowNoEmptyLineBetweenFields" value="true"/>
	</module>
	<module name="GenericWhitespace">
	<message key="ws.followed"
	value="GenericWhitespace ''{0}'' is followed by whitespace."/>
	<message key="ws.preceded"
	value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
	<message key="ws.illegalFollow"
	value="GenericWhitespace ''{0}'' should followed by whitespace."/>
	<message key="ws.notPreceded"
	value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
	</module>
	<module name="MethodParamPad">
	<property name="tokens"
	value="CTOR_DEF, LITERAL_NEW, METHOD_CALL, METHOD_DEF,
	SUPER_CTOR_CALL, ENUM_CONSTANT_DEF, RECORD_DEF"/>
	</module>
	<module name="NoLineWrap">
	<property name="tokens" value="PACKAGE_DEF, IMPORT, STATIC_IMPORT"/>
	</module>
	<module name="NoWhitespaceBefore">
	<property name="tokens"
	value="COMMA, SEMI, POST_INC, POST_DEC, DOT,
	LABELED_STAT, METHOD_REF"/>
	<property name="allowLineBreaks" value="true"/>
	</module>
	<module name="NoWhitespaceBeforeCaseDefaultColon"/>
	<module name="OperatorWrap">
	<property name="option" value="NL"/>
	<property name="tokens"
	value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR,
	LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR, METHOD_REF,
	TYPE_EXTENSION_AND "/>
	</module>
	<module name="ParenPad">
	<property name="tokens"
	value="ANNOTATION, ANNOTATION_FIELD_DEF, CTOR_CALL, CTOR_DEF, DOT, ENUM_CONSTANT_DEF,
	EXPR, LITERAL_CATCH, LITERAL_DO, LITERAL_FOR, LITERAL_IF, LITERAL_NEW,
	LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_WHILE, METHOD_CALL,
	METHOD_DEF, QUESTION, RESOURCE_SPECIFICATION, SUPER_CTOR_CALL, LAMBDA,
	RECORD_DEF"/>
	</module>
	<module name="SeparatorWrap">
	<property name="id" value="SeparatorWrapDot"/>
	<property name="tokens" value="DOT"/>
	<property name="option" value="nl"/>
	</module>
	<module name="SeparatorWrap">
	<property name="id" value="SeparatorWrapComma"/>
	<property name="tokens" value="COMMA"/>
	<property name="option" value="EOL"/>
	</module>
	<module name="SeparatorWrap">
	<!-- ELLIPSIS is EOL until https://github.com/google/styleguide/issues/259 -->
	<property name="id" value="SeparatorWrapEllipsis"/>
	<property name="tokens" value="ELLIPSIS"/>
	<property name="option" value="EOL"/>
	</module>
	<module name="SeparatorWrap">
	<!-- ARRAY_DECLARATOR is EOL until https://github.com/google/styleguide/issues/258 -->
	<property name="id" value="SeparatorWrapArrayDeclarator"/>
	<property name="tokens" value="ARRAY_DECLARATOR"/>
	<property name="option" value="EOL"/>
	</module>
	<module name="SeparatorWrap">
	<property name="id" value="SeparatorWrapMethodRef"/>
	<property name="tokens" value="METHOD_REF"/>
	<property name="option" value="nl"/>
	</module>
	<module name="SingleSpaceSeparator"/>
	<module name="WhitespaceAfter">
	<property name="tokens"
	value="COMMA, SEMI, TYPECAST, LITERAL_IF, LITERAL_ELSE,
	LITERAL_WHILE, LITERAL_DO, LITERAL_FOR, DO_WHILE"/>
	</module>
	<module name="WhitespaceAround">
	<property name="allowEmptyConstructors" value="true"/>
	<property name="allowEmptyLambdas" value="true"/>
	<property name="allowEmptyMethods" value="true"/>
	<property name="allowEmptyTypes" value="true"/>
	<property name="allowEmptyLoops" value="true"/>
	<property name="ignoreEnhancedForColon" value="false"/>
	<property name="tokens"
	value="ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR,
	BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, DO_WHILE, EQUAL, GE, GT, LAMBDA, LAND,
	LCURLY, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY,
	LITERAL_FOR, LITERAL_IF, LITERAL_RETURN, LITERAL_SWITCH, LITERAL_SYNCHRONIZED,
	LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN,
	NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, RCURLY, SL, SLIST, SL_ASSIGN, SR,
	SR_ASSIGN, STAR, STAR_ASSIGN, LITERAL_ASSERT, TYPE_EXTENSION_AND"/>
	<message key="ws.notFollowed"
	value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)"/>
	<message key="ws.notPreceded"
	value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
	</module>

	<module name="PackageDeclaration">
	<property name="matchDirectoryStructure" value="true"/>
	</module>

	<!-- filter -->
	<!-- https://checkstyle.org/config_filters.html#SuppressionXpathFilter -->
	<module name="SuppressionXpathFilter">
	<property name="file" value="${org.checkstyle.google.suppressionxpathfilter.config}"
	default="checkstyle-xpath-suppressions.xml" />
	<property name="optional" value="true"/>
	</module>
	</module>
	</module>