Glassfish 3.1 CREDENTIAL_ERROR in Eclipse

Question

I can\'t start Glassfish 3.1 on Eclipse Indigo with \"Oracle Glassfish Server Tools\" plugin on Windows 7. After installing the plugin, I\'ve chosen \"New\" -> \"Server\" in

Answer 1

I got the "The Eclipse plugin cannot communicate with the GlassFish server, status is :CREDENTIAL_ERROR" error too.

I found a solution to my problem by ensuring that no other process was listening at port 8080.
To find processes that listens to port 8080, bring up a command prompt and type in the following:

netstat -a -n -o | find "8080"

1. In the far right column, you'll see a process identifier.
2. Bring up the windows task manager (hit ctrl+alt+delete and select "Start Task Manager") and go to the processes tab.
3. Look for the column named "PID" (if it is not present already go to view -> select columns... -> check PID) and find the process with the PID you found using netstat.
   -> kill the process -> try again.

It worked for me.