ICE Can not quit

[linkman]

I write a program with ice, when click quit button, sometimes the program can not quit.
follow is log info:

......
15:02:32.625 T2900 ICELOG: (Protocol) sending close connection 
message type = 4 (close connection)
compression status = 1 (not compressed; compress response, if any)
message size = 14
15:02:32.625 T2900 ICELOG: (Protocol) sending close connection 
message type = 4 (close connection)
compression status = 1 (not compressed; compress response, if any)
message size = 14
15:02:32.625 T2900 ICELOG: (Protocol) sending close connection 
message type = 4 (close connection)
compression status = 1 (not compressed; compress response, if any)
message size = 14
15:02:32.625 T2900 ICELOG: (Protocol) sending close connection 
message type = 4 (close connection)
compression status = 1 (not compressed; compress response, if any)
message size = 14
15:02:32.625 T2900 ICELOG: (Protocol) sending close connection 
message type = 4 (close connection)
compression status = 1 (not compressed; compress response, if any)
message size = 14
15:02:32.625 T4464 ICELOG: (Network) closing tcp connection
local address = 172.16.128.15:4497
remote address = 172.16.129.14:10006
15:02:32.625 T5404 ICELOG: (Network) closing tcp connection
local address = 172.16.128.15:1243
remote address = 172.16.128.15:21014
15:02:32.625 T4464 ICELOG: (Network) closing tcp connection
local address = 192.168.152.1:1249
remote address = 192.168.152.1:10020
15:02:32.625 T5404 ICELOG: (Network) closing tcp connection
local address = 172.16.128.15:4494
remote address = 172.16.129.27:10006
15:03:32.404 T5572 ICELOG: (ThreadPool) shrinking Ice.ThreadPool.Server: Size = 2
15:03:32.404 T1100 ICELOG: (ThreadPool) shrinking Ice.ThreadPool.Server: Size = 1
15:03:32.638 T5404 ICELOG: (ThreadPool) shrinking Ice.ThreadPool.Client: Size = 1

[linkman]

I will give up ICE completely, for it is unstable. I will choose some others. bye-bye ICE, bye-bye ZeroC.