checkstyle.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
        "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">

<module name="Checker">
  <property name="severity" value="warning" />
  <module name="SuppressWarningsFilter" />
  <module name="TreeWalker">
    <module name="SuppressWarningsHolder" />
    <module name="AvoidStarImport" />
    <module name="UnusedImports">
      <property name="processJavadoc" value="true" />
    </module>
    <module name="ConstantName">
      <property name="format" value="^(log|[A-Z][A-Z0-9]*(_[A-Z0-9]+)*)$" />
      <property name="applyToPackage" value="true" />
      <property name="applyToProtected" value="true" />
      <property name="applyToPrivate" value="true" />
    </module>
    <module name="LocalFinalVariableName" />
    <module name="LocalVariableName" />
    <module name="MemberName" />
    <module name="MethodName">
      <property name="format" value="^(test[a-zA-Z0-9_]*|[a-z][a-zA-Z0-9]*$)"/>
    </module>
    <module name="PackageName" />
    <module name="ParameterName" />
    <module name="StaticVariableName" />
    <module name="TypeName" />
    <module name="IllegalImport">
      <property name="severity" value="error" />
    </module>
    <module name="RedundantImport" />
    <module name="LineLength">
      <property name="max" value="100" />
      <property name="tabWidth" value="2" />
      <property name="severity" value="error" />
      <property name="ignorePattern" value="^import .*$"/>
    </module>
    <module name="MethodLength" />
    <module name="ParameterNumber" />
    <module name="EmptyForIteratorPad" />
    <module name="MethodParamPad" />
    <module name="NoWhitespaceAfter">
      <property name="tokens" value="BNOT,DEC,DOT,INC,LNOT,UNARY_MINUS,UNARY_PLUS" />
    </module>
    <module name="OperatorWrap">
      <property name="option" value="eol" />
    </module>
    <module name="ParenPad" />
    <module name="TypecastParenPad" />
    <module name="WhitespaceAfter" />
    <module name="WhitespaceAround" />
    <module name="ModifierOrder" />
    <module name="RedundantModifier" />
    <module name="AvoidNestedBlocks" />
    <module name="EmptyBlock" />
    <module name="LeftCurly" />
    <module name="NeedBraces" />
    <module name="RightCurly" />
    <module name="AvoidInlineConditionals" />
    <module name="EmptyStatement" />
    <module name="EqualsHashCode" />
    <module name="IllegalInstantiation" />
    <module name="InnerAssignment" />
    <module name="MissingSwitchDefault" />
    <module name="SimplifyBooleanExpression" />
    <module name="SimplifyBooleanReturn" />
    <module name="FinalClass" >
      <property name="severity" value="ignore" />
    </module>
    <module name="DesignForExtension">
      <property name="severity" value="ignore" />
    </module>
    <module name="HideUtilityClassConstructor" />
    <module name="InterfaceIsType" />
    <module name="VisibilityModifier">
      <property name="packageAllowed" value="true" />
    </module>
    <module name="ArrayTypeStyle" />
    <module name="TodoComment">
      <property name="severity" value="ignore" />
      <metadata name="net.sf.eclipsecs.core.lastEnabledSeverity" value="inherit" />
    </module>
    <module name="UpperEll" />
    <module name="RegexpSinglelineJava">
      <property name="severity" value="error" />
      <property name="format" value="\t+"/>
      <property name="message"
                value="Line has tab characters; indentation should be performed with spaces."/>
    </module>
  </module>
  <module name="RegexpMultiline">
    <property name="severity" value="error" />
    <property name="format" value="\r\n$" />
  </module>
</module>