import org.realityforge.arez.annotations.Container;
import org.realityforge.arez.annotations.ContainerId;
import org.realityforge.arez.annotations.Observable;

@Container
public class ContainerIdNotFinalModel
{
  @ContainerId
  private long getId()
  {
    return 0;
  }

  @Observable
  public long getField()
  {
    return 0;
  }

  @Observable
  public void setField( final long field )
  {
  }
}

@@ -225,16 +225,8 @@
 d%0A  
-private 
 long

Fix sample data