The configuration for maven gpg plugin in a pom.xml

pom.xml

            <plugin>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-gpg-plugin</artifactId>
              <version>1.5</version>
              <executions>
                <execution>
                  <id>sign-artifacts</id>
                  <phase>verify</phase>
                  <goals>
                    <goal>sign</goal>
                  </goals>
                </execution>
              </executions>
            </plugin>