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https://issues.apache.org/jira/browse/MCHECKSTYLE-329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15681401#comment-15681401
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Guillaume Boué commented on MCHECKSTYLE-329:
--------------------------------------------
I don't think there is an issue here. The number of violations is visible in
the error message. With your configuration, on a sample project, the build
fails with:
{noformat}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-checkstyle-plugin:2.17:check (default-cli) on
project ...: You have 2 Checkstyle violations.
{noformat}
which gives the number of violations.
This number can be different than the number of Checkstyle errors shown in the
logs at the end of the Checkstyle invocation, which looks like {{[INFO] There
are 2 errors reported by Checkstyle 6.11.2 with ...}}. This log line shows how
many checkstyle errors have been reported by Checkstyle, but there can be more
violations if there are also checkstyle warnings and
{{<violationSeverity>warning</violationSeverity>}} is set.
Put another way, with {{<property name="severity" value="warning"/>}}, you're
telling Checkstyle to emit warnings instead of errors, so that log line will
not appear.
> Checkstyle plugin does not show the number of errors if the severity is
> configured to be 'warning'.
> ---------------------------------------------------------------------------------------------------
>
> Key: MCHECKSTYLE-329
> URL: https://issues.apache.org/jira/browse/MCHECKSTYLE-329
> Project: Maven Checkstyle Plugin
> Issue Type: Bug
> Affects Versions: 2.17
> Reporter: Tran Hoang Chuong
> Priority: Minor
>
> I have configured the maven checkstyle module as follow:
> {noformat}
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-checkstyle-plugin</artifactId>
> <version>2.17</version>
> <configuration>
> <includeTestSourceDirectory>false</includeTestSourceDirectory>
> <violationSeverity>warning</violationSeverity>
> <checkstyleRules>
> <module name="Checker">
> <property name="severity" value="warning"/>
> <module name="TreeWalker">
> <property name="fileExtensions" value="java"/>
> <module name="JavadocMethod">
> <property name="scope"
> value="protected"/>
> <property name="validateThrows"
> value="true"/>
> <property name="allowedAnnotations"
> value="Override,
> Test, Before, BeforeClass, After, AfterClass"/>
> <property
> name="allowThrowsTagsForSubclasses" value="true"/>
> </module>
> <module name="MissingOverride"/>
> <module name="MissingDeprecated"/>
> <module name="AvoidStarImport"/>
> <module name="UnusedImports">
> <property name="processJavadoc"
> value="true"/>
> </module>
> <module name="ModifierOrder"/>
> <module name="RedundantModifier">
> <property name="tokens"
> value="INTERFACE_DEF"/>
> </module>
> <module name="OneTopLevelClass"/>
> </module>
> <module name="Header">
> <property name="header" value="/*"/>
> <property name="fileExtensions" value="java"/>
> </module>
> <module name="RegexpSingleline">
> <property name="severity" value="info"/>
> <property name="message" value="Line has
> trailing spaces."/>
> <property name="format" value="\s+$"/>
> <property name="fileExtensions" value="java"/>
> </module>
> </module>
> </checkstyleRules>
> </configuration>
> </plugin>
> {noformat}
> Executing mvn checkstyle:check does not give me the number of violations.
> However, it does give me the number if I comment out these
> lines:{{<violationSeverity>warning</violationSeverity>}}
> {{<property name="severity" value="warning"/>}}
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