Upgrade the eclipse plugin from 3.8 to 4.25, with unlimited calls to the paintControl method in PaintListener

Question

I am upgrading the version of eclipse plugin from 3.8 to 4.25 and found that the paintControl method in the PaintListener I have been using before triggers infinitely, even if I do not have any UI operations.I don't know if this is due to the upgrade or an issue with my own code. Have any others experienced a similar situation, and how did you resolve it?

@Override
public void paintControl(PaintEvent e) {
    boolean preAdvanced = e.gc.getAdvanced();
    e.gc.setAdvanced(true);
    e.gc.setAntialias(SWT.ON);
    loadBinningWidgets(e.gc, new Rectangle(e.x, e.y, e.width, e.height));
    e.gc.setAdvanced(preAdvanced);
}

private void loadBinningWidgets(GC gc, final Rectangle area) {
    /*List<CellData> list = layout.getDisplayCellList(area.x, area.y, area.width,
            area.height, siteNode.getAvalibleSite());*/

    List<Integer> showSiteNo = siteNode.getShowSiteNo();
    List<CellData> list = null;
    if(showSiteNo == null){
        list = layout.getDisplayCellList(area.x, area.y, area.width,
                area.height, siteNode.getAvalibleSite());

    }else{
        list = layout.getDisplayCellList(area.x, area.y, area.width,
                area.height, listToInt(showSiteNo));
    }
    for (int i = 0; i < list.size(); i++) {
        CellData cellData = list.get(i);
        widgetList.get(cellData.getIndex()).setCellData(cellData);
        widgetList.get(cellData.getIndex()).redraw(gc);
    }
}

I think this method should only be called when there is a change in the UI