The Forget task will execute a set of tasks sequentially as a background
       thread.  Once the thread is started, control is returned to the calling
       target.  This is useful in being able to kick off a background server process,
       such as a webserver.  This allows you to not have to use the parallel
       task to start server processes.
| Attribute | Description | Required | 
|---|---|---|
| daemon | Should the created thread be a daemon thread. That is, should the ANT program be allowed to exit if the thread is still running. | No. Defaults to true. | 
    
    <forget>
        <exec executeable="${env.CATALINA_HOME}/bin/catalina.bat}">
            <arg line="start -security" />
        </exec>
    </forget>
    <waitfor maxwait="1" maxwaitunit="minute"
                checkevery="100" checkeveryunit="millisecond">
        <http url="http://localhost:8080" />
    </waitfor>
    
    
    Would start the Tomcat webserver as a background process, then waiting
    for the server to become available.
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