Remote debugging a Java application
To remotely debug a Java application, you need to start the application with the
java command and the
-agentlib:jdwp option. The
-agentlib:jdwp option enables the Java Debug Wire Protocol (JDWP) agent, which allows a debugger to attach to the application and control its execution.
Here is an example of starting a Java application with the
java -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 MyApplication
In this example, the JDWP agent is configured to use the socket transport with the
dt_socket option, to listen for connections on port 5005 with the
address=5005 option, and to start the application immediately without waiting for a debugger to attach with the
To attach a debugger to the application, you need to use a debugger that supports JDWP, such as the Eclipse debugger or the
jdb command-line debugger.
For example, to attach the Eclipse debugger to the application, you can follow these steps:
- Open the Debug perspective in Eclipse.
- Select the "Remote Java Application" launch configuration from the Debug Configurations dialog.
- Enter the hostname and port of the application in the "Connect tab".
- Click the "Debug" button to attach the debugger to the application.
I hope this helps. Let me know if you have any questions.