Upload main jar file

<plugin>
    <groupId>org.riedelcastro</groupId>
    <artifactId>maven-gcupload-plugin</artifactId>
    <version>1.0</version>
</plugin>

or

<plugin>
    <groupId>org.riedelcastro</groupId>
    <artifactId>maven-gcupload-plugin</artifactId>
    <version>1.0</version>
    <configuration>
        <uploads>
            <upload>
                <extensions>jar</extensions>
                <labels>Type-Library,Featured</labels>
                <summary>My Library</summary>
            </upload>
        </uploads>
    </configuration>
</plugin>