throw new MissingAttributeException( "process" );
engine = getEngine();  if ( engine == null ) { throw new MissingAttributeException( "engine" ); }  spawned = engine.spawn( getProcess() ); } else { engine  = context.getProcessEngine();  spawned = engine.spawn( getProcess(), context );
    public void doTag(XMLOutput output) throws Exception    {        if ( this.process == null )        {            throw new MissingAttributeException( "process" );        }        ProcessContext context = getProcessContext();        ProcessEngine  engine  = getProcessEngine();        engine.spawn( getProcess(),                      context );    }