How to dispose of System.Windows.Media.MediaPlayer

Question

The question is simple and can be summed up by:

How can I get this while loop to exit?

System.Windows.Media.MediaPlayer player = new System.Windows.Media.MediaPlayer();
WeakReference test = new WeakReference(player);

player.Close();
player = null;

while (test.IsAlive && test.Target != null)
{
    System.GC.Collect();
}

I have searched the documentation and have found no way to dispose of this object, the while loop never exits.

Answer 1

I am surprised that neither the C# documentation nor the Java documentation describes it that clearly:

If there is no memory pressure, a WeakReference will not be collected.

This MSDN article might be helpful:

A weak reference permits the garbage collector to collect the object while still allowing the application to access the object.

Permission is not a requirement. It may do so, but it needn't.

Wikipedia gets it right under Variations (for Java, but Java and C# are quite similar):

[...] the GC may decide not to do so if it believes the JVM can spare the memory (e.g. the JVM has lots of unused heap space)