The Eclipse plugin cannot communicate with the GlassFish server, status is :CREDENTIAL_ERROR

Question

I am able to start Glassfish through command line. However, when I try to start the server through Eclipse I encounter the following error:

The Ecli

Answer 1

In the "Servers" view, right-click on the glassfish server and choose "Open"

Within the section "Application Server", ensure that "Use Anonymous Connection for Administrator Commands" is NOT checked off.

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Application Server

You can edit some runtime properties fro the Application Server(GlassFish or Sun)

Domain Directory

Admin Name

Admin Password

Admin Server Port Number

_ Use Anonumous Connection for admin Commands.

^

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If checked, eclipse plugin does not use your login credentials (admin/adminadmin) .

Answer 2

There is another service at 8080 (or your port definition in GF settings). For me, stop this service and try start GF by Eclipse. Check for Tomcat running, or others apps.

Answer 3

In my case, i did "ps -ef | grep java" and realized there was a glassfish process already running. I think it started as part of the installation. I killed it and started the server from Eclipse again and it worked like a charm

Answer 4

As has been stated a few times here, the port conflict will cause this. I found that I could not edit the port information in Eclipse, I had to edit the domain.xml file. I searched for 8080, which took me straight to the tag. In here, i changed http-listener-1 form 8080 to 8000.

I then had to remove the GlassFish Server from the Servers tab in eclipse, and re-add it back. (this was many times faster than restarting Eclipse). now the new port is identified, and I was able to start GlassFish server.

Note: I am using the Oracle Enterprise Pack for Eclipse, not the generic eclipse plug-in.

Answer 5

Here is what worked for me - after some googling I saw a post saying the error message is misleading and it might be a port conflict. In my Eclipse I have a proxy server entry which uses port 8080 (same as GF). So I changed port to 9090 in domain.xml and GF started no problem. My system is Win7x64, Eclipse 3.7.1, GF 3.1.1

Answer 6

I had the problem. Fixed by changing permissions of the domain folder to be writable.