Sequential Task

## Sequential

### Description

`Sequential` is a container task—it can contain other Apache Ant tasks. The nested tasks are simply executed in sequence. Sequential's primary use is to support the sequential execution of a subset of tasks within the parallel task

The `sequential` task has no attributes and does not support any nested elements apart from Ant tasks. Any valid Ant task may be embedded within the sequential task.

### Example

    <parallel>
      <wlrun ... >
      <sequential>
        <sleep seconds="30"/>
        <junit ... >
        <wlstop/>
      </sequential>
    </parallel>

This example shows how the `sequential` task is used to execute three tasks in sequence, while another task is being executed in a separate thread.