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Java Network Q&A » Network » jpcap 

1. JPCAP: Network Device Information Display    forums.oracle.com

Following is exception i am getting.. [root@localhost bin]# java jpcap_example Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at jpcap_example$2.actionPerformed(jpcap_example.java:94) at javax.swing.JComboBox.fireActionEvent(JComboBox.java:1259) at javax.swing.JComboBox.setSelectedItem(JComboBox.java:586) at javax.swing.JComboBox.setSelectedIndex(JComboBox.java:622) at javax.swing.plaf.basic.BasicComboPopup$Handler.mouseReleased(BasicComboPopup.java:831) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:290) at java.awt.Component.processMouseEvent(Component.java:6108) at javax.swing.JComponent.processMouseEvent(JComponent.java:3276) at javax.swing.plaf.basic.BasicComboPopup$1.processMouseEvent(BasicComboPopup.java:497) at java.awt.Component.processEvent(Component.java:5873) at java.awt.Container.processEvent(Container.java:2105) at java.awt.Component.dispatchEventImpl(Component.java:4469) at java.awt.Container.dispatchEventImpl(Container.java:2163) at java.awt.Component.dispatchEvent(Component.java:4295) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4461) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4125) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4055) at java.awt.Container.dispatchEventImpl(Container.java:2149) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4295) at java.awt.EventQueue.dispatchEvent(EventQueue.java:604) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200) ...

2. Jpcap and network device    forums.oracle.com

Hey guys, i've been stuck with Jpcap for quite some time. Everything compiles from the tutorial, but the program simply refuse to pick up packets from an open connection(*where there is no connection to a network*). I am asking as i am doing my final year project and i'm clueless to where went wrong and what i've missed out. I also ...

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