Checkstyle

  • | Last Published: 2026-08-30
  • |Version: 14.1.0
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  • About
  • Checkstyle
  • Release Notes
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  • Documentation
  • Getting Started
  • Configuration
    • Property Types
    • System Properties
    • XPath
  • Running
    • Ant Task
    • Command Line
    • Result Reports
  • Checks
    • Annotations
    • Block Checks
    • Class Design
    • Coding
      • ArrayTrailingComma
      • AvoidDoubleBraceInitialization
      • AvoidInlineConditionals
      • AvoidNoArgumentSuperConstructorCall
      • ConstructorsDeclarationGrouping
      • CovariantEquals
      • DeclarationOrder
      • DefaultComesLast
      • EmptyStatement
      • EqualsAvoidNull
      • EqualsHashCode
      • ExplicitInitialization
      • ExpressionOverBlockLambda
      • FallThrough
      • FinalLocalVariable
      • HiddenField
      • IllegalCatch
      • IllegalInstantiation
      • IllegalSymbol
      • IllegalThrows
      • IllegalToken
      • IllegalTokenText
      • IllegalType
      • InnerAssignment
      • MagicNumber
      • MatchXpath
      • MissingCtor
      • MissingNullCaseInSwitch
      • MissingSwitchDefault
      • ModifiedControlVariable
      • MultipleStringLiterals
      • MultipleVariableDeclarations
      • NestedForDepth
      • NestedIfDepth
      • NestedTryDepth
      • NoArrayTrailingComma
      • NoClone
      • NoEnumTrailingComma
      • NoFinalizer
      • OneStatementPerLine
      • OverloadMethodsDeclarationOrder
      • PackageDeclaration
      • ParameterAssignment
      • PatternVariableAssignment
      • RequireThis
      • ReturnCount
      • SimplifyBooleanExpression
      • SimplifyBooleanReturn
      • StringLiteralEquality
      • SuperClone
      • SuperFinalize
      • TextBlockGoogleStyle
      • UnnecessaryNullCheckWithInstanceOf
      • UnnecessaryParentheses
      • UnnecessarySemicolonAfterOuterTypeDeclaration
      • UnnecessarySemicolonAfterTypeMemberDeclaration
      • UnnecessarySemicolonInEnumeration
      • UnnecessarySemicolonInTryWithResources
      • UnnecessaryTypeArgumentsWithRecordPattern
      • UnusedCatchParameterShouldBeUnnamed
      • UnusedLambdaParameterShouldBeUnnamed
      • UnusedLocalVariable
      • UnusedPrivateField
      • UnusedTryResourceShouldBeUnnamed
      • UseEnhancedSwitch
      • VariableDeclarationUsageDistance
      • WhenShouldBeUsed
    • Headers
    • Imports
    • Javadoc Comments
    • Metrics
    • Miscellaneous
    • Modifiers
    • Modules
    • Naming Conventions
    • Regexp
    • Size Violations
    • Whitespace
  • Filters
  • File Filters
  • Style Configurations
    • Google's Style
    • OpenJDK's Style
    • Sun's Style
    • Documentation Comments Style
  • Developers
  • Extending Checkstyle
    • Writing Checks
    • Writing Javadoc Checks