当文本相同时,如何在TableCellRenderer上强制更新工具提示?

getToolTipLocation(MouseEvent)

添加或删除零宽度、不间断空间?</黑客>

尝试将CellStyle用于工具提示更新:

@Override
public CellStyle getCellStyleAt(int row, int column) {
        Object property = super.getPropertyAt(row);
        String description = property instanceof Property ? ((Property) property).getDescription() : null;
        if (!StringUtils.isBlank(description)) {
            if (description.length() > splitLength) { // Automatically split long descriptions, store results in cache map.
                String splitString = descriptionToSplit.get(description);
                if (null == splitString) {
                    splitString = StringUtils.splitToRows(description, splitLength);
                    descriptionToSplit.put(description, splitString);
                }
                cellStyle.setToolTipText(splitString);
            } else { // Optimization for short descriptions.
                cellStyle.setToolTipText(description);
            }
        } else { // If description is empty, use display name instead.
            String name = property instanceof Property ? ((Property) property).getDisplayName() : null;
            cellStyle.setToolTipText(name);
        }
        return cellStyle;
    }

    @Override
    public boolean isCellStyleOn() {
        return true;
    }

    private static final CellStyle cellStyle = new CellStyle();