FTP connection not recovered after ftp server failure/recovery

If I shut down the FTP server, simulating a failure, connection is never restablished when server comes online again. Throwing some exception:

ERROR - PollingComponentSupport - Caught exception while polling: java.net.SocketException: Software caused connection abort: socket write error
java.net.SocketException: Software caused connection abort: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:65)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:123)
at org.apache.commons.net.telnet.TelnetClient._flushOutputStream(TelnetClient.java:77)
at org.apache.commons.net.telnet.TelnetOutputStream.flush(TelnetOutputStream.java:137)
at java.io.FilterOutputStream.flush(FilterOutputStream.java:123)
at sun.nio.cs.StreamEncoder$CharsetSE.implFlush(StreamEncoder.java:410)
at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:152)
at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:213)
at java.io.BufferedWriter.flush(BufferedWriter.java:236)
at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:442)
at org.apache.commons.net.ftp.FTP.sendCommand(FTP.java:520)
at org.apache.commons.net.ftp.FTP.port(FTP.java:849)
at org.apache.commons.net.ftp.FTPClient.openDataConnection(FTPClient.java:477)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2390)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2364)
at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2141)
at org.apache.servicemix.components.net.FTPPoller.poll(FTPPoller.java:61)
at org.apache.servicemix.components.util.PollingComponentSupport.run(PollingComponentSupport.java:62)
at org.apache.geronimo.connector.work.WorkerContext.run(WorkerContext.java:291)
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Thread.java:595)

I tried to stop/shutdown and restart my FTP component through jmx without sucess. Only rebooting smx will recover the connection.