Here is the logs.
06-16 03:20:31.187: W/PacketWriter(1576): Exception writing closing stream element
06-16 03:20:31.187: W/PacketWriter(1576): java.net.SocketException: Socket closed
06-16 03:20:31.187: W/PacketWriter(1576): at libcore.io.Posix.sendtoBytes(Native Method)
06-16 03:20:31.187: W/PacketWriter(1576): at libcore.io.Posix.sendto(Posix.java:155)
06-16 03:20:31.187: W/PacketWriter(1576): at libcore.io.BlockGuardOs.sendto(BlockGuardOs.java:177)
06-16 03:20:31.187: W/PacketWriter(1576): at libcore.io.IoBridge.sendto(IoBridge.java:466)
06-16 03:20:31.187: W/PacketWriter(1576): at java.net.PlainSocketImpl.write(PlainSocketImpl.java:507)
06-16 03:20:31.187: W/PacketWriter(1576): at java.net.PlainSocketImpl.access$100(PlainSocketImpl.java:46)
06-16 03:20:31.187: W/PacketWriter(1576): at java.net.PlainSocketImpl$PlainSocketOutputStream.write(PlainSocketImpl.java:269 )
06-16 03:20:31.187: W/PacketWriter(1576): at java.io.OutputStreamWriter.flushBytes(OutputStreamWriter.java:167)
06-16 03:20:31.187: W/PacketWriter(1576): at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:158)
06-16 03:20:31.187: W/PacketWriter(1576): at java.io.BufferedWriter.flush(BufferedWriter.java:124)
06-16 03:20:31.187: W/PacketWriter(1576): at org.jivesoftware.smack.tcp.PacketWriter.writePackets(PacketWriter.java:190)
06-16 03:20:31.187: W/PacketWriter(1576): at org.jivesoftware.smack.tcp.PacketWriter.access$000(PacketWriter.java:40)
06-16 03:20:31.187: W/PacketWriter(1576): at org.jivesoftware.smack.tcp.PacketWriter$1.run(PacketWriter.java:77)
06-16 03:20:50.299: W/System.err(1576): org.jivesoftware.smack.SmackException$NoResponseException
06-16 03:20:50.299: W/System.err(1576): at org.jivesoftware.smack.XMPPConnection.throwConnectionExceptionOrNoResponse(XMPP Connection.java:543)
06-16 03:20:50.299: W/System.err(1576): at org.jivesoftware.smack.tcp.XMPPTCPConnection.throwConnectionExceptionOrNoRespon se(XMPPTCPConnection.java:855)
06-16 03:20:50.299: W/System.err(1576): at org.jivesoftware.smack.tcp.PacketReader.startup(PacketReader.java:114)
06-16 03:20:50.299: W/System.err(1576): at org.jivesoftware.smack.tcp.XMPPTCPConnection.initConnection(XMPPTCPConnection.j ava:477)
06-16 03:20:50.299: W/System.err(1576): at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectUsingConfiguration(XMPPTCPC onnection.java:435)
06-16 03:20:50.299: W/System.err(1576): at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectInternal(XMPPTCPConnection. java:799)
06-16 03:20:50.299: W/System.err(1576): at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:391)
06-16 03:20:50.303: W/System.err(1576): at com.example.newthingstest.ActivityChat$1.run(ActivityChat.java:55)
06-16 03:20:50.303: W/System.err(1576): at java.lang.Thread.run(Thread.java:841)