Connection Manager Bug?

I met problem about CM connect to openfire .I used openfire(3.6.4) and connection manager(3.6.3).

If connection CM to OF is broken, CM will never connect to openfire forever. Why? Below is CM log.

2012.01.04 12:30:37 Error delivering raw text

org.jivesoftware.multiplexer.net.SocketConnection@19d03a4e socket: Socket[addr=/213.158.165.254,port=5223,localport=60935]

java.net.SocketException: Broken pipe

at java.net.SocketOutputStream.socketWrite0(Native Method)

at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)

at java.net.SocketOutputStream.write(SocketOutputStream.java:136)

at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)

at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)

at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:276)

at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:122)

at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:212)

at java.io.BufferedWriter.flush(BufferedWriter.java:236)

at org.jivesoftware.multiplexer.net.SocketConnection.deliverRawText(SocketConnecti on.java:570)

at org.jivesoftware.multiplexer.ServerSurrogate$1.run(ServerSurrogate.java:97)

2012.01.04 12:30:51 CM - Trying to connect to server at 213.158.165.254:5223

2012.01.04 12:30:51 CM - Plain connection to server at 213.158.165.254:5223 successful

2012.01.04 12:30:51 OS - Sent handshake to host: localhost id: c9459906

2012.01.04 12:30:51 OS - Handshake was SUCCESSFUL with host: localhost id: c9459906

2012.01.04 12:31:05 CM - Trying to connect to server at 213.158.165.254:5223

2012.01.04 12:31:05 CM - Plain connection to server at 213.158.165.254:5223 successful

2012.01.04 12:31:05 OS - Sent handshake to host: localhost id: f9652abc

2012.01.04 12:31:05 OS - Handshake was SUCCESSFUL with host: localhost id: f9652abc

2012.01.04 12:31:16 IQ stanza of type RESULT was discarded:

2012.01.04 12:31:26 IQ stanza of type RESULT was discarded:

2012.01.04 12:31:36 IQ stanza of type RESULT was discarded:

2012.01.04 12:31:46 IQ stanza of type RESULT was discarded:

2012.01.04 12:31:56 IQ stanza of type RESULT was discarded:

2012.01.04 12:32:06 IQ stanza of type RESULT was discarded:

2012.01.04 12:32:16 IQ stanza of type RESULT was discarded:

2012.01.04 12:32:26 IQ stanza of type RESULT was discarded:

2012.01.04 12:32:36 IQ stanza of type RESULT was discarded:

2012.01.04 12:32:47 IQ stanza of type RESULT was discarded:

2012.01.04 12:33:07 IQ stanza of type RESULT was discarded:

2012.01.04 12:35:44 IQ stanza of type RESULT was discarded: