Network monitoring tool in java (netbeans 7.0)

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Java

I want to develop network monitoring tool(in netbeans 7.0) in java to implement and analyze a server monitoring tool.A computer application that can intercept and log traffic passing over a digital network or part of a network.server monitoring tool is used by network administrators to manage the traffic,load and monitor any abnormal usage.it may also help in maintaining overall performance of network.
i want it to trace:
time stamp
source mac
destination mac
source IP
destination IP
source port
destination port
packet length

so i need help for this,i am unaware to initiate it.

What I have tried:

I have tried to develop this through java networking and using jnetpcap for windows os.
Is there any better way to develop the tool without using jnetpcap library.If yes then tell about that,if no then guide me more about these