Using a Suppressions Filter

Checkstyle allows the definition of a list of files and their line ranges that should be suppressed from reporting any violations (known as a suppressions filter ).

Example: checkstyle-suppressions.xml

<?xml version="1.0"?>

<!DOCTYPE suppressions PUBLIC
     "-//Puppy Crawl//DTD Suppressions 1.0//EN"
     "http://www.puppycrawl.com/dtds/suppressions_1_0.dtd">

<suppressions>
  <suppress checks="JavadocStyleCheck"
             files="GeneratedObject.java"
             lines="50-9999"/>
  <suppress checks="MagicNumberCheck"
             files="LegacyDatasetConvertor.java"
             lines="221,250-295"/>
</suppressions>

Example: pom.xml - Specifies the suppressions filter that Checkstyle should use.

<project>
  ...
  <reporting>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-checkstyle-plugin</artifactId>
        <version>2.13-SNAPSHOT</version>
        <configuration>
          <configLocation>checkstyle.xml</configLocation>
          <suppressionsLocation>checkstyle-suppressions.xml</suppressionsLocation>
          <suppressionsFileExpression>checkstyle.suppressions.file</suppressionsFileExpression>
        </configuration>
      </plugin>
    </plugins>
  </reporting>
  ...
</project>