<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
"-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
"https://checkstyle.org/dtds/configuration_1_3.dtd">
<!--
Checkstyle configuration that checks the sun coding conventions from:
- the Java Language Specification at
https://docs.oracle.com/javase/specs/jls/se11/html/index.html
- the Sun Code Conventions at https://www.oracle.com/java/technologies/javase/codeconventions-contents.html
- the Javadoc guidelines at
https://www.oracle.com/technical-resources/articles/java/javadoc-tool.html
- the JDK Api documentation https://docs.oracle.com/en/java/javase/11/
- some best practices
Checkstyle is very configurable. Be sure to read the documentation at
https://checkstyle.org (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.
To suppress certain violations please review suppression filters.
Finally, it is worth reading the documentation.
-->
<module name="Checker">
<!--
If you set the basedir property below, then all reported file
names will be relative to the specified directory. See
https://checkstyle.org/config.html#Checker
<property name="basedir" value="${basedir}"/>
-->
<property name="severity" value="error"/>
<property name="fileExtensions" value="java, properties, xml"/>
<!-- Excludes all 'module-info.java' files -->
<!-- See https://checkstyle.org/filefilters/index.html -->
<module name="BeforeExecutionExclusionFileFilter">
<property name="fileNamePattern" value="module\-info\.java$"/>
</module>
<!-- https://checkstyle.org/filters/suppressionfilter.html -->
<module name="SuppressionFilter">
<property name="file" value="${org.checkstyle.sun.suppressionfilter.config}"
default="checkstyle-suppressions.xml" />
<property name="optional" value="true"/>
</module>
<!-- Checks that a package-info.java file exists for each package. -->
<!-- See https://checkstyle.org/checks/javadoc/javadocpackage.html#JavadocPackage -->
<module name="JavadocPackage"/>
<!-- Checks whether files end with a new line. -->
<!-- See https://checkstyle.org/checks/misc/newlineatendoffile.html -->
<module name="NewlineAtEndOfFile"/>
<!-- Checks that property files contain the same keys. -->
<!-- See https://checkstyle.org/checks/misc/translation.html -->
<module name="Translation"/>
<!-- Checks for Size Violations. -->
<!-- See https://checkstyle.org/checks/sizes/index.html -->
<module name="FileLength"/>
<module name="LineLength">
<property name="fileExtensions" value="java"/>
</module>
<!-- Checks for whitespace -->
<!-- See https://checkstyle.org/checks/whitespace/index.html -->
<module name="FileTabCharacter"/>
<!-- Miscellaneous other checks. -->
<!-- See https://checkstyle.org/checks/misc/index.html -->
<module name="RegexpSingleline">
<property name="format" value="\s+$"/>
<property name="minimum" value="0"/>
<property name="maximum" value="0"/>
<property name="message" value="Line has trailing spaces."/>
</module>
<!-- Checks for Headers -->
<!-- See https://checkstyle.org/checks/header/index.html -->
<!-- <module name="Header"> -->
<!-- <property name="headerFile" value="${checkstyle.header.file}"/> -->
<!-- <property name="fileExtensions" value="java"/> -->
<!-- </module> -->
<module name="TreeWalker">
<!-- Checks for Javadoc comments. -->
<!-- See https://checkstyle.org/checks/javadoc/index.html -->
<module name="InvalidJavadocPosition"/>
<module name="JavadocMethod"/>
<module name="JavadocType"/>
<module name="JavadocVariable"/>
<module name="JavadocStyle"/>
<module name="MissingJavadocMethod"/>
<!-- Checks for Naming Conventions. -->
<!-- See https://checkstyle.org/checks/naming/index.html -->
<module name="ConstantName"/>
<module name="LocalFinalVariableName"/>
<module name="LocalVariableName"/>
<module name="MemberName"/>
<module name="MethodName"/>
<module name="PackageName"/>
<module name="ParameterName"/>
<module name="StaticVariableName"/>
<module name="TypeName"/>
<!-- Checks for imports -->
<!-- See https://checkstyle.org/checks/imports/index.html -->
<module name="AvoidStarImport"/>
<module name="IllegalImport"/> <!-- defaults to sun.* packages -->
<module name="RedundantImport"/>
<module name="UnusedImports">
<property name="processJavadoc" value="false"/>
</module>
<!-- Checks for Size Violations. -->
<!-- See https://checkstyle.org/checks/sizes/index.html -->
<module name="MethodLength"/>
<module name="ParameterNumber"/>
<!-- Checks for whitespace -->
<!-- See https://checkstyle.org/checks/whitespace/index.html -->
<module name="EmptyForIteratorPad"/>
<module name="GenericWhitespace"/>
<module name="MethodParamPad"/>
<module name="NoWhitespaceAfter"/>
<module name="NoWhitespaceBefore"/>
<module name="OperatorWrap"/>
<module name="ParenPad"/>
<module name="TypecastParenPad"/>
<module name="WhitespaceAfter"/>
<module name="WhitespaceAround"/>
<!-- Modifier Checks -->
<!-- See https://checkstyle.org/checks/modifier/index.html -->
<module name="ModifierOrder"/>
<module name="RedundantModifier"/>
<!-- Checks for blocks. You know, those {}'s -->
<!-- See https://checkstyle.org/checks/blocks/index.html -->
<module name="AvoidNestedBlocks"/>
<module name="EmptyBlock"/>
<module name="LeftCurly"/>
<module name="NeedBraces"/>
<module name="RightCurly"/>
<!-- Checks for common coding problems -->
<!-- See https://checkstyle.org/checks/coding/index.html -->
<module name="EmptyStatement"/>
<module name="EqualsHashCode"/>
<module name="HiddenField"/>
<module name="IllegalInstantiation"/>
<module name="InnerAssignment"/>
<module name="MagicNumber"/>
<module name="MissingSwitchDefault"/>
<module name="MultipleVariableDeclarations"/>
<module name="SimplifyBooleanExpression"/>
<module name="SimplifyBooleanReturn"/>
<!-- Checks for class design -->
<!-- See https://checkstyle.org/checks/design/index.html -->
<module name="DesignForExtension"/>
<module name="FinalClass"/>
<module name="HideUtilityClassConstructor"/>
<module name="InterfaceIsType"/>
<module name="VisibilityModifier"/>
<!-- Miscellaneous other checks. -->
<!-- See https://checkstyle.org/checks/misc/index.html -->
<module name="ArrayTypeStyle"/>
<module name="FinalParameters"/>
<module name="TodoComment"/>
<module name="UpperEll"/>
<!-- https://checkstyle.org/filters/suppressionxpathfilter.html -->
<module name="SuppressionXpathFilter">
<property name="file" value="${org.checkstyle.sun.suppressionxpathfilter.config}"
default="checkstyle-xpath-suppressions.xml" />
<property name="optional" value="true"/>
</module>
</module>
</module>