cros reference between classes in diferent packages

hy all.
i´m needing to compile two clases located in diferent packages
and each one refer the other by one attribute (i show am example bellow)

package a;

public class A{
  public b.B bbb;
}



package b;

public class B{
  public a.A aaa;
}

plese, anyone has any idea of how can i do this classes compilation using janino?