run task with maven after specific phace

how run a task post maven eclipse:eclipse phase ?

<groupId>org.codehaus.mojo</groupId>

<artifactId>exec-maven-plugin</artifactId>

<version>1.2</version>

<executions>

    <execution>

        <phase>eclipse:eclipse</phase>

        <goals>

            <goal>java</goal>

        </goals>

        <configuration>

            <executable>java</executable>

            <mainClass>a.b.c.Main</mainClass>

        </configuration>

    </execution>

</executions>

this configuration seems not ok.