checkstyle.xml
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN" "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
<module name="Checker">
<module name="FileTabCharacter"/>
<module name="NewlineAtEndOfFile">
<property name="lineSeparator" value="lf"/>
</module>
<module name="LineLength">
<property name="max" value="140"/>
</module>
<module name="TreeWalker">
<module name="Indentation">
<property name="basicOffset" value="4"/>
<property name="arrayInitIndent" value="8"/>
</module>
<module name="NoWhitespaceAfter"/>
</module>
</module>