How to set JYMSG on netbean?

I've tried and found the error like the following :confused:

Attempting login
java.io.InterruptedIOException: Login timed out
Input Exception thrown
Input Exception thrown
Input Exception thrown
Input Exception thrown
Input Exception thrown
at ymsg.network.Session.login (Unknown Source)
at YahooClient.login (YahooClient.java: 248)
at YahooClient.actionPerformed (YahooClient.java: 315)
at javax.swing.AbstractButton.fireActionPerformed (AbstractButton.java: 1995)
at javax.swing.AbstractButton $ Handler.actionPerformed (AbstractButton.java: 2318)
at javax.swing.DefaultButtonModel.fireActionPerformed (DefaultButtonModel.java: 387)
at javax.swing.DefaultButtonModel.setPressed (DefaultButtonModel.java: 242)
at javax.swing.plaf.basic.BasicButtonListener.mouseRe leased (BasicButtonListener.java: 236)
Input Exception thrown
Input Exception thrown
Input Exception thrown
Input Exception thrown
Input Exception thrown
Input Exception thrown

Thanks for helping! :)