style.xml

<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
          "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
          "http://checkstyle.sourceforge.net/dtds/configuration_1_3.dtd">

<module name="Checker">
	<!-- If you set the basedir property below, then all reported file names 
		will be relative to the specified directory. See http://checkstyle.sourceforge.net/5.x/config.html#Checker 
		<property name="basedir" value="${basedir}"/> -->

	<property name="fileExtensions" value="java, properties, xml" />

	<!-- Checks whether files end with a new line. -->
	<!-- See http://checkstyle.sf.net/config_misc.html#NewlineAtEndOfFile -->
	<module name="NewlineAtEndOfFile">
        <property name="lineSeparator" value="lf" />
    </module>

	<property name="severity" value="warning" />

	<!-- Checks that property files contain the same keys. -->
	<!-- See http://checkstyle.sf.net/config_misc.html#Translation -->
	<module name="Translation" />

	<!-- Checks for Size Violations. -->
	<!-- See http://checkstyle.sf.net/config_sizes.html -->
	<module name="FileLength" />

	<!-- Checks for whitespace -->
	<!-- See http://checkstyle.sf.net/config_whitespace.html -->
	<module name="FileTabCharacter" />

	<!-- Miscellaneous other checks. -->
	<!-- See http://checkstyle.sf.net/config_misc.html -->
	<module name="RegexpSingleline">
		<property name="format" value="\s{2,}$" />
		<property name="minimum" value="0" />
		<property name="maximum" value="0" />
		<property name="message" value="Line has trailing spaces." />
	</module>

	<module name="TreeWalker">
		<module name="SuppressionCommentFilter">
			<property name="offCommentFormat" value="CHECKSTYLE: ([\w\|]+) OFF" />
			<property name="onCommentFormat" value="CHECKSTYLE: ([\w\|]+) ON" />
			<property name="checkFormat" value="$1" />
		</module>
		<!-- Checks for Javadoc comments. -->
		<!-- See http://checkstyle.sf.net/config_javadoc.html -->
		<module name="JavadocMethod">
			<property name="scope" value="protected" />
		</module>
		<module name="JavadocType">
			<property name="scope" value="protected" />
		</module>
		<module name="JavadocVariable">
			<property name="scope" value="protected" />
		</module>
		<module name="JavadocStyle" />

		<!-- 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" />
		<module name="PackageName" />
		<module name="ParameterName" />
		<module name="StaticVariableName" />
		<module name="TypeName" />

		<!-- Checks for imports -->
		<!-- See http://checkstyle.sf.net/config_import.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 whitespace -->
		<!-- See http://checkstyle.sf.net/config_whitespace.html -->
		<module name="EmptyForIteratorPad" />
		<module name="GenericWhitespace" />
		<module name="MethodParamPad" />
		<module name="NoWhitespaceAfter">
			<property name="tokens"
				value="BNOT,DEC,DOT,INC,LNOT,UNARY_MINUS,UNARY_PLUS" />
		</module>
		<module name="NoWhitespaceBefore" />
		<module name="OperatorWrap" />
		<module name="ParenPad" />
		<module name="TypecastParenPad" />
		<module name="WhitespaceAfter" />
		<module name="WhitespaceAround" />

		<!-- Modifier Checks -->
		<!-- See http://checkstyle.sf.net/config_modifiers.html -->
		<module name="ModifierOrder" />
		<module name="RedundantModifier" />

		<!-- Checks for blocks. You know, those {}'s -->
		<!-- See http://checkstyle.sf.net/config_blocks.html -->
		<module name="AvoidNestedBlocks" />
		<module name="EmptyBlock" />
		<module name="LeftCurly" />
		<module name="NeedBraces" />
		<module name="RightCurly" />

		<!-- Checks for common coding problems -->
		<!-- See http://checkstyle.sf.net/config_coding.html -->
		<module name="EmptyStatement" />
		<module name="EqualsHashCode" />
		<module name="IllegalInstantiation" />
		<module name="InnerAssignment" />
		<module name="MagicNumber">
			<property name="ignoreNumbers"
				value="-0.5, -1, 0, 0.5, 1, 2, 3, 4, 8, 10, 16, 32, 64, 90, 100, 180, 360, 1000" />
		</module>
		<module name="MissingSwitchDefault" />
		<module name="SimplifyBooleanExpression" />
		<module name="SimplifyBooleanReturn" />

		<!-- Checks for class design -->
		<!-- See http://checkstyle.sf.net/config_design.html -->
		<module name="DesignForExtension" />
		<module name="FinalClass" />
		<module name="HideUtilityClassConstructor" />
		<module name="InterfaceIsType" />
		<module name="VisibilityModifier" />

		<!-- Miscellaneous other checks. -->
		<!-- See http://checkstyle.sf.net/config_misc.html -->
		<module name="ArrayTypeStyle" />
		<module name="FinalParameters" />
		<module name="TodoComment" />
		<module name="UpperEll" />
	</module>
</module>