code: @Nullable
  	public SerializedValue<TaskInformation> getSerializedTaskInformation() {
  		if (serializedTaskInformation instanceof NonOffloaded) {
  			NonOffloaded<TaskInformation> taskInformation =
  				(NonOffloaded<TaskInformation>) serializedTaskInformation;
  			return taskInformation.serializedValue;
  		} else {
  			throw new IllegalStateException(
  				"Trying to work with offloaded serialized job information.");
  		}
  	}
docs: Return the sub task's serialized task information.
  
  @return serialized task information (may be <tt>null</tt> before a call to {@link
  #loadBigData(PermanentBlobService)}).