1. start Jetty server under debug mode via mvn jetty:run

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2. In Eclipse, create a new Debug configuration->Remote Java Application

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Specify Host as localhost and port 8000:

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Click debug button:

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You should observe that the Jetty server listening to port 8000 has accepted this debug request and start application via localhost:8080 now:

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3. go to localhost:8080, perform action to trigger the breakpoint:

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And now in Eclipse, breakpoint is triggered!

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Note: if you meet with error message “bind error, address already in use”, please first use “netstat -lp” to find the process id which occupies the address and kill that process by kill -9 <pid>.

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If still does not work, restart the virtual machine instance.

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