Maven Embedded Glassfish Plugin - how to set the temporary directory?

I am using the Maven Embedded Glassfish Plugin and it works great, but unfortunately it creates a temporary directory in my main project directory. I would like it to use target so that every time I clean the project, the embedded directory also gets wiped.

Is there a setting for that?

Walter

Update: According to the OP, the needed parameter is actually instanceRoot, not installRoot.

I think that you can use the installRoot instanceRoot parameter for this. Set it to the target directory:

<plugin>
  <groupId>org.glassfish</groupId>
  <artifactId>maven-embedded-glassfish-plugin</artifactId>
  <version>3.0</version>
  <configuration>
    <instanceRoot>${project.build.directory}</instanceRoot>
    <goalPrefix>glassfish</goalPrefix>
    <app>target/test.war</app>
    <port>8080</port>
    <contextRoot>test</contextRoot>
  </configuration>
  <executions>
    <execution>
      <phase>install</phase>
      <goals>
        <goal>run</goal>
      </goals>
    </execution>
  </executions>
</plugin>