Why is my program hanging on a system.out.print of DatagramPacket.getData()

Why is my program hanging on a system.out.print of DatagramPacket.getData()

References

Reference NO 1

http://stackoverflow.com/questions/13652944/why-is-my-program-hanging-on-a-system-out-print-of-datagrampacket-getdata

Reference NO 2

http://stackoverflow.com/questions/5484213/this-program-hangs-networking

Reference NO 3

http://www.java-database.org/article/5038907/Ping+Server

Reference NO 4

http://www.grlira.com/?tag=hang

Reference NO 5

http://www.java2s.com/Questions_And_Answers/Java-Network/Network/Network-2.htm

Reference NO 6

http://aelinik.online.fr/Applets/CH9.HTM

Reference NO 7

http://www.cis.fiu.edu/~czhang/teaching/cop6611/slides/UDP_Socket.htm

Reference NO 8

http://www.webbasedprogramming.com/Developing-Professional-Java-Applets/ch9.htm