Serialize a runnable object

Question

Is it possible to serialize a runnable object in java6? I want to store the runnable object into a file.

If not, is there any other way to achieve this?

I have this class:

public abstract class SerializableRunnable implements Serializable, Runnable
{

    private static final long serialVersionUID = 6217172014399079306L;

    @Override
    public abstract void run();

}

Then I have another class that container the previous one:

public class Action implements Serializable
{
    ...
    private SerializableRunnable m_runnable;

    @Override
    public void Write(DataOutputStream dout) throws IOException
    {
        ...
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(baos);
        oos.writeObject(m_runnable);
        oos.close();

        byte[] m_runnableBytes = baos.toByteArray();
        dout.writeInt(m_runnableBytes.length);
        dout.write(m_runnableBytes);
    }
...
}

The problem is that I get a java.io.NotSerializableException in this line of code:

oos.writeObject(m_runnable);

Stack trace:

java.io.NotSerializableException:
  [r]   at java.io.ObjectOutputStream.writeObject0(Unknown Source)
  [r]   at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
  [r]   at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
  [r]   at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
  [r]   at java.io.ObjectOutputStream.writeObject0(Unknown Source)
  [r]   at java.io.ObjectOutputStream.writeObject(Unknown Source)
  [r]   at mypackage.Action.Write(Action.java:52)

Runnable creation:

EventManager.addAction(new Action(false, EventManager.ON_EVENT_X, 
    new SerializableRunnable()
    {
         @Override
         public void run()
         {
             // Do whatever
         }
    }));

Thanks in advance

EDIT: added sample code
EDIT2: added stack trace
EDIT3: added runnable creation

Answer 1

Thanks all for your comments.

The issue was related to what @KDM said. The class wasn't really SerializableRunnable but an anonymous class and therefore the enclosing class must be serializable too.