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checkstyle-configuration.xml
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checkstyle-configuration.xml
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<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
"-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
"https://checkstyle.org/dtds/configuration_1_3.dtd">
<!--
~ Copyright (c) 2022 Goldman Sachs and others.
~ All rights reserved. This program and the accompanying materials
~ are made available under the terms of the Eclipse Public License v1.0
~ and Eclipse Distribution License v. 1.0 which accompany this distribution.
~ The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
~ and the Eclipse Distribution License is available at
~ http://www.eclipse.org/org/documents/edl-v10.php.
-->
<!-- Checkstyle is very configurable. Be sure to read the documentation at -->
<!-- http://checkstyle.sf.net (or in your downloaded distribution). -->
<!-- Most Checks are configurable, be sure to consult the documentation. -->
<!-- To completely disable a check, just comment it out or delete it from the file. -->
<module name="Checker">
<module name="SuppressionFilter">
<property name="file" value="checkstyle-suppressions.xml" />
</module>
<property name="charset" value="UTF-8" />
<property name="severity" value="error" />
<!-- Checks whether files end with a new line. -->
<!-- See http://checkstyle.sf.net/config_misc.html#NewlineAtEndOfFile -->
<module name="NewlineAtEndOfFile">
<property name="fileExtensions" value="java, xml, stg, scala" />
</module>
<module name="TreeWalker">
<property name="tabWidth" value="4" />
<module name="RequireThis" />
<module name="OuterTypeFilename" />
<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" />
<!-- Checks for Naming Conventions. -->
<!-- See http://checkstyle.sf.net/config_naming.html -->
<module name="ConstantName" />
<module name="LocalFinalVariableName" />
<module name="LocalVariableName" />
<module name="MemberName" />
<module name="MethodName">
<property name="format" value="^[a-z][a-zA-Z0-9_]*$" />
</module>
<module name="ClassTypeParameterName">
<property name="format" value="^[A-Z0-9]+$" />
</module>
<module name="MethodTypeParameterName">
<property name="format" value="^[A-Z0-9]+$" />
</module>
<module name="PackageName">
<property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$" />
</module>
<module name="ParameterName" />
<module name="StaticVariableName" />
<module name="TypeName" />
<module name="LambdaParameterName"/>
<module name="AvoidStarImport">
<property name="allowStaticMemberImports" value="true" />
</module>
<module name="IllegalImport" />
<module name="RedundantImport" />
<!-- Checks for whitespace -->
<!-- See http://checkstyle.sf.net/config_whitespace.html -->
<module name="EmptyForInitializerPad" />
<module name="EmptyForIteratorPad">
<property name="option" value="space" />
</module>
<module name="EmptyLineSeparator">
<property name="allowNoEmptyLineBetweenFields" value="true" />
<property name="allowMultipleEmptyLinesInsideClassMembers" value="false" />
</module>
<module name="GenericWhitespace" />
<module name="MethodParamPad" />
<module name="NoLineWrap" />
<module name="NoWhitespaceAfter">
<property name="tokens" value="ARRAY_INIT" />
<property name="tokens" value="AT" />
<property name="tokens" value="BNOT" />
<property name="tokens" value="DEC" />
<property name="tokens" value="DOT" />
<property name="tokens" value="INC" />
<property name="tokens" value="LNOT" />
<property name="tokens" value="UNARY_MINUS" />
<property name="tokens" value="UNARY_PLUS" />
<property name="tokens" value="ARRAY_DECLARATOR" />
<property name="tokens" value="INDEX_OP" />
<property name="tokens" value="METHOD_REF" />
</module>
<module name="NoWhitespaceBefore" />
<module name="NoWhitespaceBefore">
<property name="tokens" value="DOT" />
<property name="tokens" value="METHOD_REF" />
<property name="allowLineBreaks" value="true" />
</module>
<module name="OperatorWrap">
<property name="tokens" value="QUESTION" />
<property name="tokens" value="COLON" />
<property name="tokens" value="EQUAL" />
<property name="tokens" value="NOT_EQUAL" />
<property name="tokens" value="DIV" />
<property name="tokens" value="PLUS" />
<property name="tokens" value="MINUS" />
<property name="tokens" value="STAR" />
<property name="tokens" value="MOD" />
<property name="tokens" value="SR" />
<property name="tokens" value="BSR" />
<property name="tokens" value="GE" />
<property name="tokens" value="GT" />
<property name="tokens" value="SL" />
<property name="tokens" value="LE" />
<property name="tokens" value="LT" />
<property name="tokens" value="BXOR" />
<property name="tokens" value="BOR" />
<property name="tokens" value="LOR" />
<property name="tokens" value="BAND" />
<property name="tokens" value="LAND" />
<property name="tokens" value="TYPE_EXTENSION_AND" />
<property name="tokens" value="LITERAL_INSTANCEOF" />
<property name="tokens" value="METHOD_REF" />
<property name="option" value="nl" />
</module>
<module name="OperatorWrap">
<property name="tokens" value="ASSIGN" />
<property name="tokens" value="DIV_ASSIGN" />
<property name="tokens" value="PLUS_ASSIGN" />
<property name="tokens" value="MINUS_ASSIGN" />
<property name="tokens" value="STAR_ASSIGN" />
<property name="tokens" value="MOD_ASSIGN" />
<property name="tokens" value="SR_ASSIGN" />
<property name="tokens" value="BSR_ASSIGN" />
<property name="tokens" value="SL_ASSIGN" />
<property name="tokens" value="BXOR_ASSIGN" />
<property name="tokens" value="BOR_ASSIGN" />
<property name="tokens" value="BAND_ASSIGN" />
<property name="option" value="eol" />
</module>
<module name="ParenPad" />
<module name="SeparatorWrap">
<property name="id" value="SeparatorWrapNl" />
<property name="tokens" value="DOT" />
<property name="tokens" value="AT" />
<property name="tokens" value="METHOD_REF" />
<property name="option" value="nl" />
</module>
<module name="SeparatorWrap">
<property name="id" value="SeparatorWrapEol" />
<property name="tokens" value="COMMA" />
<property name="tokens" value="RPAREN" />
<property name="tokens" value="RBRACK" />
<property name="tokens" value="ARRAY_DECLARATOR" />
<property name="tokens" value="ELLIPSIS" />
<property name="tokens" value="SEMI" />
<property name="option" value="EOL" />
</module>
<module name="TypecastParenPad" />
<module name="WhitespaceAfter" />
<module name="WhitespaceAround">
<property name="allowEmptyConstructors" value="true" />
<property name="allowEmptyMethods" value="true" />
<property name="allowEmptyTypes" value="true" />
<property name="allowEmptyLoops" value="true" />
</module>
<module name="Indentation">
<property name="lineWrappingIndentation" value="8"/>
</module>
<module name="CommentsIndentation" />
<module name="SingleSpaceSeparator">
<property name="validateComments" value="false" />
</module>
<!-- Modifier Checks -->
<!-- See http://checkstyle.sf.net/config_modifiers.html -->
<module name="ModifierOrder" />
<module name="RedundantModifier" />
<module name="LeftCurly">
<property name="option" value="nl" />
<!--TODO: Remove this, to include the LAMBDA token-->
<property name="tokens" value="INTERFACE_DEF, CLASS_DEF, ANNOTATION_DEF, ENUM_DEF, CTOR_DEF, METHOD_DEF, ENUM_CONSTANT_DEF, LITERAL_WHILE, LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_SYNCHRONIZED, LITERAL_SWITCH, LITERAL_DO, LITERAL_IF, LITERAL_ELSE, LITERAL_FOR, STATIC_INIT, OBJBLOCK"/>
</module>
<module name="NeedBraces" />
<module name="RightCurly">
<property name="option" value="alone" />
</module>
<!-- Checks for common coding problems -->
<!-- See http://checkstyle.sf.net/config_coding.html -->
<module name="EmptyStatement" />
<module name="EmptyBlock">
<property name="tokens"
value="LITERAL_WHILE, LITERAL_TRY, LITERAL_FINALLY, LITERAL_DO, LITERAL_IF, LITERAL_ELSE, LITERAL_FOR, INSTANCE_INIT, STATIC_INIT, LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_CASE, LITERAL_DEFAULT" />
</module>
<!-- Effective Java Item 8 - Always override hashCode when you override equals -->
<module name="EqualsHashCode" />
<module name="HiddenField">
<property name="severity" value="warning" />
<property name="ignoreSetter" value="true" />
<property name="ignoreConstructorParameter" value="true" />
</module>
<!-- Effective Java Item 4 - Avoid creating duplicate objects -->
<module name="IllegalInstantiation">
<property name="severity" value="warning" />
<property
name="classes"
value="java.lang.Boolean,java.lang.Integer,java.lang.Long,java.lang.Short,java.lang.Character,java.lang.Byte,java.util.Timer,java.util.TimerTask" />
</module>
<module name="SimplifyBooleanExpression" />
<module name="SimplifyBooleanReturn" />
<module name="HideUtilityClassConstructor" />
<!-- Effective Java Item 17 - Use interfaces only to define types -->
<module name="InterfaceIsType">
<property name="severity" value="warning" />
</module>
<module name="ArrayTrailingComma" />
<!-- Miscellaneous other checks. -->
<!-- See http://checkstyle.sf.net/config_misc.html -->
<module name="ArrayTypeStyle" />
<module name="Regexp">
<property name="illegalPattern" value="true" />
<property name="format" value="[’“”]" />
<property name="message" value="Curly quotes aren't allowed." />
</module>
<module name="Regexp">
<property name="illegalPattern" value="true" />
<property name="format" value="[ ]+$" />
<property name="message" value="Line has trailing spaces." />
</module>
<module name="RegexpSinglelineJava">
<property name="ignoreComments" value="true" />
<property
name="format"
value="System\.out\.println" />
<property
name="message"
value="System.out.println." />
</module>
<module name="RegexpSinglelineJava">
<property name="ignoreComments" value="true" />
<property
name="format"
value="System\.err\.println" />
<property
name="message"
value="System.err.println." />
</module>
<module name="RegexpSinglelineJava">
<property name="ignoreComments" value="true" />
<property
name="format"
value=", \w+,\n" />
<property
name="message"
value="Comma separated list should have one item per line, or be all on a single line." />
</module>
<module name="RegexpSinglelineJava">
<property name="ignoreComments" value="true" />
<property
name="format"
value="\(\w+,\n" />
<property
name="message"
value="Comma separated list should have one item per line, or be all on a single line." />
</module>
<!-- Effective Java Item 6 - Avoid finalizers -->
<module name="NoFinalizer" />
<module name="AnnotationLocation">
<property name="id" value="AnnotationLocationMostCases" />
<property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, 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="EmptyCatchBlock">
<property name="exceptionVariableName" value="ignored" />
</module>
<module name="IllegalThrows" />
<module name="UpperEll" />
<module name="SuperFinalize" />
<module name="SuperClone">
<property name="severity" value="warning" />
</module>
<module name="CovariantEquals" />
<module name="AvoidStaticImport">
<property name="excludes"
value="org.junit.Assert.*,org.junit.Assume.*,org.hamcrest.CoreMatchers.*,org.hamcrest.Matchers.*,org.hamcrest.MatcherAssert.*,org.eclipse.collections.impl.test.Verify.*,org.eclipse.collections.impl.factory.Iterables.*,org.eclipse.collections.test.IterableTestCase.*" />
</module>
<module name="MissingDeprecated" />
<module name="AnnotationUseStyle" />
<module name="DeclarationOrder" />
<module name="DefaultComesLast" />
<module name="FallThrough" />
<module name="ImportOrder">
<property name="groups" value="java,javax" />
<property name="separated" value="true" />
<property name="sortStaticImportsAlphabetically" value="true" />
<property name="option" value="bottom" />
</module>
<module name="MultipleVariableDeclarations" />
<module name="MutableException" />
<module name="PackageDeclaration" />
<module name="MissingOverride">
<property name="javaFiveCompatibility" value="true" />
</module>
<module name="OneTopLevelClass" />
<module name="UnusedImports">
<property name="processJavadoc" value="true" />
</module>
<module name="UnusedLocalVariable" />
<module name="OneStatementPerLine" />
<!--Suppressing this check as in newer version of checkstyle parenthesis around expressions are getting triggered-->
<!-- <module name="UnnecessaryParentheses" />-->
</module>
<module name="RegexpHeader">
<property name="headerFile" value="java.header" />
<property name="multiLines" value="11, 12, 13, 15, 16" />
<property name="fileExtensions" value="java, scala" />
</module>
<module name="FileTabCharacter" />
<module name="RegexpMultiline">
<property name="format" value="\{\n\n" />
<property name="message" value="First line after opening a scope may not be blank." />
</module>
<module name="RegexpMultiline">
<property name="format" value="\n\n[ ]*\}" />
<property name="message" value="Last line before closing a scope may not be blank." />
</module>
<module name="RegexpMultiline">
<property name="format" value="\n\n\n" />
<property name="message" value="Extra newline." />
</module>
</module>