opensource network monitoring tools developed in java

Question

Hi i want to know the best opensource network monitoring tool developed in java with very good support via forums and which should have the following features ..

• Fault and Alert mgmt
• Performance Poll graphs
• inventory mgmt
• config management

Answer 1

You could try JNM JNM

Answer 2

Check out Hyperic. http://www.hyperic.com/ Sounds like it will fit all your requirements and you can get commercial support should you need or want it.