Using these class definitions>

---------- Package 1 -------------
package package1;

public class ADS {
  public ADS () {}
  
  public AmsAddr getAmsAddr() {
    return new AmsAddr();
  }
}

class AmsAddr {
  public short port;
  public short getPort(){
    return port;
  }
}

--------- Package 2 -------------------------------

package package2;

import package1.*;

public class TestFrame {
  private TestFrame () {}
  private void aaa() {
    ADS myADS = new ADS();
    System.out.println("ADS AmsAddr.port: "+myADS.getAmsAddr().getPort());
    System.out.println("ADS AmsAddr.port: "+myADS.getAmsAddr().port);
  }
}
-----------------------------

The fastjavac does throw error only at the second Sys.out line, but it should
throw two errors on both Sys.out lines.