4719 Common patchset for jdk1.7 support preparation

*** 489,499 ****
                  DateTimeDialog.this.setMidnight();
              }
              else
                 if (e.getSource() == help) {
                  if (hd != null)
!                   hd.show();
                  else {
                    hd = new
                      HelpDialog(DateTimeDialog.this.parent,
                          getString("Help for Date and Time Dialog"), false);
                    hd.setVisible(true);
--- 489,499 ----
                  DateTimeDialog.this.setMidnight();
              }
              else
                 if (e.getSource() == help) {
                  if (hd != null)
!                   hd.setVisible(true);
                  else {
                    hd = new
                      HelpDialog(DateTimeDialog.this.parent,
                          getString("Help for Date and Time Dialog"), false);
                    hd.setVisible(true);