Sign parent pom
<module>plot</module>
</modules>
+ <profiles>
+ <profile>
+ <id>release</id>
+ <activation>
+ <property>
+ <name>release</name>
+ </property>
+ </activation>
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-gpg-plugin</artifactId>
+ </plugin>
+ <plugin>
+ <groupId>org.sonatype.plugins</groupId>
+ <artifactId>nexus-staging-maven-plugin</artifactId>
+ </plugin>
+ </plugins>
+ </build>
+ </profile>
+ </profiles>
+
<build>
<pluginManagement>
<plugins>
