Jenkins - 1.6.22
Jabber plugin - 1.3.5
IM plugin - 1.3.5

Every now and then I'm getting a socket closure in the jenkins log and jenkins can no longer publish build events to our chat room on our ejabberd server. Also, there is another error message in the log when it attempts to reconnect.

The error log (stack trace)in jenkins looks like...

Exception writing closing stream element
java.net.SocketException: Connection reset by peer: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
at sun.security.ssl.OutputRecord.writeBuffer(Unknown Source)
at sun.security.ssl.OutputRecord.write(Unknown Source)
at sun.security.ssl.SSLSocketImpl.writeRecordInternal(Unknown Source)
at sun.security.ssl.SSLSocketImpl.writeRecord(Unknown Source)
at sun.security.ssl.AppOutputStream.write(Unknown Source)
at sun.nio.cs.StreamEncoder.writeBytes(Unknown Source)
at sun.nio.cs.StreamEncoder.implFlushBuffer(Unknown Source)
at sun.nio.cs.StreamEncoder.implFlush(Unknown Source)
at sun.nio.cs.StreamEncoder.flush(Unknown Source)
at java.io.OutputStreamWriter.flush(Unknown Source)
at java.io.BufferedWriter.flush(Unknown Source)
at java.io.FilterWriter.flush(Unknown Source)
at org.jivesoftware.smack.tcp.PacketWriter.writePackets(PacketWriter.java:190)
at org.jivesoftware.smack.tcp.PacketWriter.access$000(PacketWriter.java:40)
at org.jivesoftware.smack.tcp.PacketWriter$1.run(PacketWriter.java:77)

Aug 04, 2015 10:49:20 AM WARNING org.jivesoftware.smack.XMPPConnection callConnectionClosedOnErrorListener
Connection closed with error
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at sun.security.ssl.InputRecord.readFully(Unknown Source)
at sun.security.ssl.InputRecord.read(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source)
at sun.security.ssl.AppInputStream.read(Unknown Source)
at sun.nio.cs.StreamDecoder.readBytes(Unknown Source)
at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
at java.io.InputStreamReader.read(Unknown Source)
at java.io.BufferedReader.fill(Unknown Source)
at java.io.BufferedReader.read1(Unknown Source)
at java.io.BufferedReader.read(Unknown Source)
at hudson.plugins.jabber.im.LoggingFilterReader.read(LoggingFilterReader.java:29)
at org.xmlpull.mxp1.MXParser.fillBuf(MXParser.java:2992)
at org.xmlpull.mxp1.MXParser.more(MXParser.java:3046)
at org.xmlpull.mxp1.MXParser.nextImpl(MXParser.java:1144)
at org.xmlpull.mxp1.MXParser.next(MXParser.java:1093)
at org.jivesoftware.smack.tcp.PacketReader.parsePackets(PacketReader.java:291)
at org.jivesoftware.smack.tcp.PacketReader.access$000(PacketReader.java:47)
at org.jivesoftware.smack.tcp.PacketReader$1.run(PacketReader.java:81)

And the reconnect attempt error (stack trace) looks like:

Aug 04, 2015 10:49:50 AM INFO hudson.plugins.im.IMConnectionProvider$ConnectorRunnable run
Trying to reconnect
Aug 04, 2015 10:49:50 AM INFO hudson.plugins.jabber.im.transport.JabberIMConnection createConnection
Trying to connect to XMPP on /britishgas.co.uk
Aug 04, 2015 10:50:11 AM WARNING hudson.plugins.jabber.im.transport.JabberIMConnection createConnection
org.jivesoftware.smack.SmackException$ConnectionException
at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectUsingConfiguration(XMPPTCPConnection.java:436)
at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectInternal(XMPPTCPConnection.java:811)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:396)
at hudson.plugins.jabber.im.transport.JabberIMConnection.createConnection(JabberIMConnection.java:409)
at hudson.plugins.jabber.im.transport.JabberIMConnection.connect(JabberIMConnection.java:189)
at hudson.plugins.jabber.im.transport.JabberIMConnectionProvider.createConnection(JabberIMConnectionProvider.java:42)
at hudson.plugins.im.IMConnectionProvider.create(IMConnectionProvider.java:59)
at hudson.plugins.im.IMConnectionProvider.access$500(IMConnectionProvider.java:16)
at hudson.plugins.im.IMConnectionProvider$ConnectorRunnable.run(IMConnectionProvider.java:165)
at java.lang.Thread.run(Unknown Source)