public class Main {
  /**
   * Main for testing.
   *
   * @param args Program arguments
   */
  public static void main(String[] args) {
    Test myTest = Test.ONE;

    switch (myTest) {
      case ONE:
        {
          System.out.println("One");
          break;
        }
      case TWO:
        {
          System.out.println("Two");
          break;
        }
      case THREE:
        {
          System.out.println("Three");
          break;
        }
      default:
        throw new RuntimeException("Unexpected value");
    }
  }

  public enum Test {
    ONE,
    TWO,
    THREE
  }
}

<?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="TreeWalker">
        <module name="Indentation">
            <property name="basicOffset" value="2"/>
            <property name="braceAdjustment" value="0"/>
            <property name="caseIndent" value="2"/>
            <property name="throwsIndent" value="4"/>
            <property name="lineWrappingIndentation" value="4"/>
            <property name="arrayInitIndent" value="2"/>
        </module>
    </module>
</module>

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building checkstyle-playground 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-checkstyle-plugin:2.17:checkstyle (default-cli) @ checkstyle-playground ---
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Starting audit...
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:12: 'block lcurly' have incorrect indentation level 8, expected level should be 6. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:13: 'block' child have incorrect indentation level 10, expected level should be 8. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:14: 'block' child have incorrect indentation level 10, expected level should be 8. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:15: 'block rcurly' have incorrect indentation level 8, expected level should be 6. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:17: 'block lcurly' have incorrect indentation level 8, expected level should be 6. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:18: 'block' child have incorrect indentation level 10, expected level should be 8. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:19: 'block' child have incorrect indentation level 10, expected level should be 8. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:20: 'block rcurly' have incorrect indentation level 8, expected level should be 6. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:22: 'block lcurly' have incorrect indentation level 8, expected level should be 6. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:23: 'block' child have incorrect indentation level 10, expected level should be 8. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:24: 'block' child have incorrect indentation level 10, expected level should be 8. [Indentation]
[ERROR] /Users/jplace/Documents/work/checkstyle-playground/src/main/java/Main.java:25: 'block rcurly' have incorrect indentation level 8, expected level should be 6. [Indentation]
Audit done.
[INFO] There are 12 errors reported by Checkstyle 7.6 with checkstyle.xml ruleset.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.313 s
[INFO] Finished at: 2017-03-02T14:47:16-08:00
[INFO] Final Memory: 18M/309M
[INFO] ------------------------------------------------------------------------

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>checkstyle-playground</groupId>
    <artifactId>checkstyle-playground</artifactId>
    <version>1.0-SNAPSHOT</version>

    <build>
        <plugins>
            <!-- Java Compiler -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.2</version>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
            <!-- Check Java code style -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-checkstyle-plugin</artifactId>
                <version>2.17</version>
                <!--
                Force Maven to use latest version of checkstyle
                -->
                <dependencies>
                    <dependency>
                        <groupId>com.puppycrawl.tools</groupId>
                        <artifactId>checkstyle</artifactId>
                        <version>7.6</version>
                    </dependency>
                </dependencies>
                <!--
                Bind checkstyle to run as part of Maven validate phase
                -->
                <executions>
                    <execution>
                        <id>checkstyle</id>
                        <phase>validate</phase>
                        <goals>
                            <goal>check</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <configLocation>checkstyle.xml</configLocation>
                    <violationSeverity>info</violationSeverity>
                    <logViolationsToConsole>true</logViolationsToConsole>
                    <failOnViolation>true</failOnViolation>
                    <consoleOutput>true</consoleOutput>
                    <linkXRef>false</linkXRef>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>