/// <summary>
/// Attempt to release an item to a <see cref="Resource"/> on behalf
/// of some client <see cref="Task"/>.
/// </summary>
/// <exception cref="ArgumentException">
/// If <paramref name="activator"/> is not a <see cref="Task"/>
/// instance.
/// </exception>
/// <param name="activator">
/// The object that activated this <see cref="ReleaseResource"/> task.
/// </param>
/// <param name="data">Not used.</param>
protected override void ExecuteTask(object activator, object data)
{
Task owner = activator as Task;
if (owner == null)
{
throw new ArgumentException("'activator' not a Task instance.");
}
Blocker.ReturnResource(owner, _itemToRelease);
ResumeAll(Blocker, null);
}