modules/controls/src/main/java/javafx/scene/control/skin/VirtualFlow.java

*** 1823,1835 ****
      }
  
      private void positionCell(T cell, double position) {
          if (isVertical()) {
              cell.setLayoutX(0);
!             cell.setLayoutY(snapSize(position));
          } else {
!             cell.setLayoutX(snapSize(position));
              cell.setLayoutY(0);
          }
      }
  
      private void resizeCellSize(T cell) {
--- 1823,1835 ----
      }
  
      private void positionCell(T cell, double position) {
          if (isVertical()) {
              cell.setLayoutX(0);
!             cell.setLayoutY(snapSizeY(position));
          } else {
!             cell.setLayoutX(snapSizeX(position));
              cell.setLayoutY(0);
          }
      }
  
      private void resizeCellSize(T cell) {
*** 2214,2225 ****
          return barVisibilityChanged;
      }
  
      private void updateViewportDimensions() {
          final boolean isVertical = isVertical();
!         final double breadthBarLength = snapSize(isVertical ? hbar.prefHeight(-1) : vbar.prefWidth(-1));
!         final double lengthBarBreadth = snapSize(isVertical ? vbar.prefWidth(-1) : hbar.prefHeight(-1));
  
          setViewportBreadth((isVertical ? getWidth() : getHeight()) - (needLengthBar ? lengthBarBreadth : 0));
          setViewportLength((isVertical ? getHeight() : getWidth()) - (needBreadthBar ? breadthBarLength : 0));
      }
  
--- 2214,2225 ----
          return barVisibilityChanged;
      }
  
      private void updateViewportDimensions() {
          final boolean isVertical = isVertical();
!         final double breadthBarLength = isVertical ? snapSizeY(hbar.prefHeight(-1)) : snapSizeX(vbar.prefWidth(-1));
!         final double lengthBarBreadth = isVertical ? snapSizeX(vbar.prefWidth(-1)) : snapSizeY(hbar.prefHeight(-1));
  
          setViewportBreadth((isVertical ? getWidth() : getHeight()) - (needLengthBar ? lengthBarBreadth : 0));
          setViewportLength((isVertical ? getHeight() : getWidth()) - (needBreadthBar ? breadthBarLength : 0));
      }
  
*** 2406,2417 ****
                  hbar.resize(hbar.getWidth()-vbar.getWidth(), hbar.getHeight());
                  vbar.resize(vbar.getWidth(), vbar.getHeight()-hbar.getHeight());
              }
          }
  
!         clipView.resize(snapSize(isVertical ? viewportBreadth : viewportLength),
!                 snapSize(isVertical ? viewportLength : viewportBreadth));
  
          // If the viewportLength becomes large enough that all cells fit
          // within the viewport, then we want to update the value to match.
          if (getPosition() != lengthBar.getValue()) {
              lengthBar.setValue(getPosition());
--- 2406,2417 ----
                  hbar.resize(hbar.getWidth()-vbar.getWidth(), hbar.getHeight());
                  vbar.resize(vbar.getWidth(), vbar.getHeight()-hbar.getHeight());
              }
          }
  
!         clipView.resize(snapSizeX(isVertical ? viewportBreadth : viewportLength),
!                         snapSizeY(isVertical ? viewportLength : viewportBreadth));
  
          // If the viewportLength becomes large enough that all cells fit
          // within the viewport, then we want to update the value to match.
          if (getPosition() != lengthBar.getValue()) {
              lengthBar.setValue(getPosition());