Maven

pom.xml

<build>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-pmd-plugin</artifactId>
        <configuration>
            <failOnViolation>false</failOnViolation>
            <printFailingErrors>true</printFailingErrors>
        </configuration>
        <executions>
          <execution>
            <goals>
              <goal>check</goal>
            </goals>
          </execution>
        </executions>
    </plugin>
</build>

Maven (P3C rules)

<build>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-pmd-plugin</artifactId>
        <configuration>
            <failOnViolation>false</failOnViolation>
            <printFailingErrors>true</printFailingErrors>
            <rulesets>
                <ruleset>rulesets/java/ali-comment.xml</ruleset>
                <ruleset>rulesets/java/ali-concurrent.xml</ruleset>
                <ruleset>rulesets/java/ali-constant.xml</ruleset>
                <ruleset>rulesets/java/ali-exception.xml</ruleset>
                <ruleset>rulesets/java/ali-flowcontrol.xml</ruleset>
                <ruleset>rulesets/java/ali-naming.xml</ruleset>
                <ruleset>rulesets/java/ali-oop.xml</ruleset>
                <ruleset>rulesets/java/ali-orm.xml</ruleset>
                <ruleset>rulesets/java/ali-other.xml</ruleset>
                <ruleset>rulesets/java/ali-set.xml</ruleset>
            </rulesets>
        </configuration>
        <executions>
          <execution>
            <goals>
              <goal>check</goal>
            </goals>
          </execution>
        </executions>
        <dependencies>
            <dependency>
                <groupId>com.alibaba.p3c</groupId>
                <artifactId>p3c-pmd</artifactId>
                <version>2.0.1</version>
            </dependency>
        </dependencies>
    </plugin>
</build>

Report

<reporting>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-pmd-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>findbugs-maven-plugin</artifactId>
            <version>3.0.5</version>
        </plugin>
    </plugins>
</reporting>