tcc-transaction 与Dubbo整合后，三层事务方法，底层服务无法confirm或cancel的问题 about tcc-transaction

[bigcoder84]

示例代码如下：

@DubboService(timeout = 900000000, cluster = "failfast")
public class AService implements IAService { 
    
    @DubboReference
    private IBService bService;

    @Override
    @Compensable(confirmMethod = "confirmOrder", cancelMethod = "cancelOrder")
    public int placeOrder(OrderDTO orderDTO) {
        // ...
        int result = bService.placeOrder(inventoryOrderDTO);
        return 0;
    }
}

public interface IBService {

    @EnableTcc
    int placeOrder(InventoryOrderDTO orderDTO);
}

@DubboService(timeout = 900000000, cluster = "failfast")
public class BService implements IBService {
    @DubboReference
    private cService cService;
    
    @Override
    @Compensable(confirmMethod = "confirmOrder", cancelMethod = "cancelOrder", transactionContextEditor = DubboTransactionContextEditor.class)
    public int placeOrder(InventoryOrderDTO inventoryOrderDTO) {
        log.info("tryOrder");
        cService.placeOrder(redpackOrderDTO);
        return 0;
    }

}

public interface ICService {

    @EnableTcc
    int placeOrder(InventoryOrderDTO orderDTO);
}

@DubboService(timeout = 900000000, cluster = "failfast")
public class CService implements ICService {
    
    @Override
    @Compensable(confirmMethod = "confirmOrder", cancelMethod = "cancelOrder", transactionContextEditor = DubboTransactionContextEditor.class)
    public int placeOrder(InventoryOrderDTO inventoryOrderDTO) {
        log.info("tryOrder");
        return 0;
    }

}

[bigcoder84]

#334 PR中修复了该问题

[changmingxie]

@bigcoder84 在1.8.0版中修复。