Examples of my.code.a003.equality.A6EqualsAndInheritanceSimpleReversingSolution$Point

org.eclipse.swt.internal.win32.POINT
ngelikalanger.com/Articles/JavaSolutions/SecretsOfEquals/Equals-2.html" >article. about her much complex full hierarchy traversing solution.
The solution is simple. Ensure that equality is compare always in one set direction. This way symmetry contract is enforced. If compared class is subclass of this class, not same class but a subclass, the simply reverse direction by calling equals() on the compared object. Subclass has always better knowledge what and how it needs to be compared, it know about all extra fields.
Restricted mixed type equals() - in this case we genuinely assume here that ColorPoint of any color is not equal intrinsicly colorless Point even if they have got the same coordinates. However any class extending Point but not adding value component should be equal having the same coordinates. In that sense it is 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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