Examples of my.code.a003.equality.A7EqualsAndInheritanceAngelikaLangerSolutionFull$Point

org.eclipse.swt.internal.win32.POINT
ngelikalanger.com/Articles/JavaSolutions/SecretsOfEquals/Equals-2.html" >see here.
This example demonstrates full power of Angelika Langer solution by adding extra classes Point3D and ColorPoint3D. They form two separate hierarchy branches and despite this extra complication we are able to match them equal when common fields are equal and specific fields having default values. That is ColorPoint3D(2,3,0,Color.TRANSPARENT) is equal ColorPoint(2,3,Color.TRANSPARENT) or Point(2,3) or Point3D(2,3,0).
Full mixed type equals() variant - in this case we genuinely assume that Point and ColorPoint can be genuinely equal when (explicitly) colorless ColorPoint is equals to (intrinsicly) colorless Point. This assume that every (extra) value component (color in ColorPoint) has default value (colorless color) making comparing subclass to superclass possible even when subclass have extra value components.
This solution is fully and unarguably and 100% Liskov Substitution Principle compliant.

                               interleave);
    }


    public static long shuffle(Space space, double x, double y)
    {
        Point point = new Point(x, y);
        long[] zValues = new long[1];
        space.decompose(point, zValues);
        long z = zValues[0];
        assert z != Space.Z_NULL;
        return z;

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                    }
                    pbits.write(0, bits, 0, bits.length);
                    SIZE size = new SIZE();
                    size.cx = w;
                    size.cy = h;
                    POINT srcLoc = new POINT();
                    BLENDFUNCTION blend = new BLENDFUNCTION();
                    POINT loc = new POINT();
                    loc.x = win.getX();
                    loc.y = win.getY();
                    HWND hWnd = getHWnd(win);
                    // extract current constant alpha setting, if possible
                    ByteByReference bref = new ByteByReference();

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                pbits.write(0, bits, 0, bits.length);
                
                SIZE size = new SIZE();
                size.cx = w;
                size.cy = h;
                POINT loc = new POINT();
                loc.x = alphaWindow.getX();
                loc.y = alphaWindow.getY();
                POINT srcLoc = new POINT();
                BLENDFUNCTION blend = new BLENDFUNCTION();
                blend.SourceConstantAlpha = (byte)(alpha * 255);
                blend.AlphaFormat = User32.AC_SRC_ALPHA;
                user.UpdateLayeredWindow(hWnd, screenDC, loc, size, memDC, srcLoc, 
                                         0, blend, User32.ULW_ALPHA);

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            List sizes = new ArrayList();
            while (!pi.isDone()) {
                int type = pi.currentSegment(coords);
                if (type == PathIterator.SEG_MOVETO) {
                    size = 1;
                    points.add(new POINT((int)coords[0], (int)coords[1]));
                }
                else if (type == PathIterator.SEG_LINETO) {
                    ++size;
                    points.add(new POINT((int)coords[0], (int)coords[1]));
                }
                else if (type == PathIterator.SEG_CLOSE) {
                    sizes.add(new Integer(size));
                }
                else {
                    throw new RuntimeException("Area is not polygonal: " + area);
                }
                pi.next();
            }
            POINT[] lppt = (POINT[])new POINT().toArray(points.size());
            POINT[] pts = (POINT[])points.toArray(new POINT[points.size()]);
            for (int i=0;i < lppt.length;i++) {
                lppt[i].x = pts[i].x;
                lppt[i].y = pts[i].y;
            }

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                        pbits.write((v*ww+origin.x)*4, bits, 0, bits.length);
                    }
                    SIZE winSize = new SIZE();
                    winSize.cx = win.getWidth();
                    winSize.cy = win.getHeight();
                    POINT winLoc = new POINT();
                    winLoc.x = win.getX();
                    winLoc.y = win.getY();
                    POINT srcLoc = new POINT();
                    BLENDFUNCTION blend = new BLENDFUNCTION();
                    HWND hWnd = getHWnd(win);
                    // extract current constant alpha setting, if possible
                    ByteByReference bref = new ByteByReference();
                    IntByReference iref = new IntByReference();

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                pbits.write(0, bits, 0, bits.length);
                
                SIZE size = new SIZE();
                size.cx = w;
                size.cy = h;
                POINT loc = new POINT();
                loc.x = alphaWindow.getX();
                loc.y = alphaWindow.getY();
                POINT srcLoc = new POINT();
                BLENDFUNCTION blend = new BLENDFUNCTION();
                blend.SourceConstantAlpha = (byte)(alpha * 255);
                blend.AlphaFormat = User32.AC_SRC_ALPHA;
                user.UpdateLayeredWindow(hWnd, screenDC, loc, size, memDC, srcLoc, 
                                         0, blend, User32.ULW_ALPHA);

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        String description = "";
        if ( fdbo.getString("description") != null ) 
          description = fdbo.getString("description");
                  
        Point placemark = placemarksFolder.createAndAddPlacemark()
           .withName(fdbo.getString("title")).withOpen(Boolean.TRUE)
           .withDescription(description)
           .createAndSetPoint().addToCoordinates(-0.126236, 51.500152);
      }
    }

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      // connect to child process via MBeans
      JMXServiceURL jmxURL = extractJmxServiceUrl(pid);
      JMXConnector connector = JMXConnectorFactory.connect(jmxURL);
      MBeanServerConnection mbsc = connector.getMBeanServerConnection();
      ObjectName mbeanName = new ObjectName("my.code.a003.process:type=PrintOnRemoteRequest.MessagePrinter");
      MessagePrinterMBean printerProxy = JMX.newMBeanProxy(mbsc, mbeanName,
        MessagePrinterMBean.class, true);


      // call method on child process via MBean
      printerProxy.printMessage("Hello world!");


      // close connection to child application
      connector.close();
    } finally {
      if (childProcess != null) {

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      // connect to child process via MBeans
      JMXServiceURL jmxURL = extractJmxServiceUrl(pid);
      JMXConnector connector = JMXConnectorFactory.connect(jmxURL);
      MBeanServerConnection mbsc = connector.getMBeanServerConnection();
      ObjectName mbeanName = new ObjectName(TESTED_MBEAN_OBJECT_NAME);
      MessagePrinterMBean printerProxy = JMX.newMBeanProxy(mbsc, mbeanName,
        MessagePrinterMBean.class, true);


      // call method on child process via MBean
      printerProxy.printMessage("Hello world!");


      // close connection to child application
      connector.close();
    } finally {
      if (childProcess != null) {

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   *            contains the client coordinates to be converted.
   * @return converted point of the sreen coordinates.
   */
  public static Point clientToScreen(int handle, Point point)
  {
    POINT pt = new POINT();
    pt.x = point.x;
    pt.y = point.y;
    OS.ClientToScreen(handle, pt);
    return new Point(pt.x, pt.y);
  }

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