How to Resolve the 'java.net.BindException: Address Already in Use: JVM_Bind' Error?

Resolving the "java.net.BindException: Address Already in Use: JVM_Bind" Error

When running a server application in Eclipse, it may throw an error indicating "java.net.BindException: Address already in use: JVM_Bind." This error suggests that the application cannot bind to a specific network port that is already in use.

Troubleshooting the Error

1. Identify the Process Using the Port:
To determine which process is using the port, run the command:

lsof -i:<port number></port>

Replace with the port that your server application is trying to bind to. This will list the process ID (PID) of the application occupying the port.

2. Kill the Conflicting Process:
Once you have identified the PID of the conflicting process, terminate it using the following command:

kill <pid></pid>

For example, if the process with PID 12345 is using port 8080, you can kill it by running:

kill 12345

3. Restart Your Application:
After killing the conflicting process, restart your server application to bind successfully to the desired network port.

Additional Tips:

• Check for Firewall Settings: Ensure that your firewall is not blocking the port that your application is using.
• Use a Different Port: If restarting the application does not resolve the issue, try using a different network port for your server.
• Restart Your System: As a last resort, you can restart your computer to release any system resources that may be causing the conflict.

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