checkstyle.cfg

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.0//EN"
    "http://www.puppycrawl.com/dtds/configuration_1_0.dtd">
<module name="Checker">
  <module name="TreeWalker">
    <property name="tabWidth" value="4"/>
    <!-- code conventions -->
    <!-- license header -->
    <module name="RegexpHeader">
      <property name="headerFile" value="checkstyle.header"/>
    </module>
    <!-- naming conventions -->
    <module name="ConstantName"/>
    <module name="MethodName"/>
    <module name="LocalFinalVariableName"/>
    <module name="LocalVariableName"/>
    <module name="MemberName"/>
    <module name="ParameterName"/>
    <module name="TypeName"/>
    <module name="StaticVariableName"/>
    <module name="PackageName"/>
    <!-- code layout -->
    <module name="RightCurly"/>
    <module name="LeftCurly"/>
    <module name="NeedBraces">
      <property name="tokens" value="LITERAL_DO, LITERAL_FOR, LITERAL_WHILE"/>
    </module>
    <module name="OperatorWrap"/>
    <!-- standard whitespace settings -->
    <module name="ParenPad"/>
    <module name="NoWhitespaceAfter"/>
    <module name="NoWhitespaceBefore"/>
    <module name="WhitespaceAfter">
      <property name="tokens" value="COMMA, SEMI"/>
    </module>
    <module name="WhitespaceAround"/>
    <!-- JavaDoc guidelines -->
    <module name="JavadocMethod">
      <property name="scope" value="protected"/>
    </module>
    <module name="JavadocType">
      <property name="authorFormat" value="\S"/>
    </module>
    <module name="JavadocVariable">
      <property name="scope" value="protected"/>
    </module>
    <!-- JLS -->
    <module name="RedundantModifier"/>
    <module name="ModifierOrder"/>
    <module name="UpperEll"/>
    <!-- Api Doc -->
    <!-- override hashCode whenever you override equals() -->
    <module name="EqualsHashCode"/>
    <!-- don't create new instances of Boolean,
         use Boolean.TRUE/FALSE or Boolean.valueOf() instead -->
    <module name="IllegalInstantiation">
      <property name="classes" value="java.lang.Boolean"/>
    </module>
    <!-- best practices -->
    <!-- don't allow empty blocks (in particular catch blocks) -->
    <module name="EmptyBlock">
      <property name="option" value="text"/>
    </module>
    <!-- avoid inner assignments -->
    <module name="InnerAssignment"/>
    <!-- don't allow imports from the sun.* package hierarchy -->
    <module name="IllegalImport"/>
    <!-- don't allow public members -->
    <module name="VisibilityModifier">
      <property name="protectedAllowed" value="true"/>
    </module>
    <!-- simplify your code -->
    <module name="AvoidStarImport"/>
    <module name="RedundantImport"/>
    <module name="UnusedImports"/>
    <module name="SimplifyBooleanExpression"/>
    <module name="SimplifyBooleanReturn"/>
    <!-- flag reminder comments -->
    <module name="TodoComment"/>
    <!-- enforce default length limits -->
    <module name="LineLength">
      <property name="max" value="100"/>
    </module>
    <module name="MethodLength"/>
    <module name="FileLength"/>
    <!-- don't allow tabs -->
    <module name="TabCharacter"/>
  </module>
  <!-- enforce package documentation -->
  <module name="PackageHtml"/>
</module>