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 the server view and clicked on GlassFish 3.1 and downloaded the installation through Eclipse.

Every time I try to start it, I've the following message:

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

I've found out that the initial password is 'changeit' and I've changed it to my own, on the command line:

bin/asadmin change-master-password  domain1
Enter the current master password>
Enter the new master password>
Enter the new master password again>
Command change-master-password executed successfully.

I've changed it accordingly in GlasshFish 3.1 configuration screen within Eclipse in the section Application Server (Admin Password).

The ports listed (8080, 4848) seems compatible with domain.xml configuration:

<network-listeners>
    <network-listener port="8080" protocol="http-listener-1" transport="tcp" name="http-listener-1" thread-pool="http-thread-pool"></network-listener>
    <network-listener port="8181" protocol="http-listener-2" transport="tcp" name="http-listener-2" thread-pool="http-thread-pool"></network-listener>
    <network-listener port="4848" protocol="admin-listener" transport="tcp" name="admin-listener" thread-pool="admin-thread-pool"></network-listener>
</network-listeners>

However, in my .log I find the following:

!ENTRY oracle.eclipse.tools.glassfish 4 1 2011-08-04 11:38:43.925
!MESSAGE GlassFish: error 
!STACK 0
java.net.ConnectException: Connection refused: connect
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
    at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
    at java.net.Socket.connect(Socket.java:525)
    at java.net.Socket.connect(Socket.java:475)
    at sun.net.NetworkClient.doConnect(NetworkClient.java:163)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:394)
    at sun.net.www.http.HttpClient.openServer(HttpClient.java:529)
    at sun.net.www.http.HttpClient.<init>(HttpClient.java:233)
    at sun.net.www.http.HttpClient.New(HttpClient.java:306)
    at sun.net.www.http.HttpClient.New(HttpClient.java:323)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:860)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:801)
    at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:726)
    at com.sun.enterprise.jst.server.sunappsrv.commands.CommandRunner.call(CommandRunner.java:607)
    at com.sun.enterprise.jst.server.sunappsrv.commands.CommandRunner.call(CommandRunner.java:1)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
    at java.util.concurrent.FutureTask.run(FutureTask.java:138)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
    at java.lang.Thread.run(Thread.java:619)

!ENTRY oracle.eclipse.tools.glassfish 4 150 2011-08-04 11:38:43.928
!MESSAGE The Eclipse plugin cannot communicate with the GlassFish server, status is :CREDENTIAL_ERROR
!STACK 0
java.lang.RuntimeException: The Eclipse plugin cannot communicate with the GlassFish server.Status is :CREDENTIAL_ERROR
    at com.sun.enterprise.jst.server.sunappsrv.SunAppServerLaunch.launch(SunAppServerLaunch.java:163)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:854)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:703)
    at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:696)
    at org.eclipse.wst.server.core.internal.Server.startImpl2(Server.java:3404)
    at org.eclipse.wst.server.core.internal.Server.startImpl(Server.java:3342)
    at org.eclipse.wst.server.core.internal.Server$StartJob.run(Server.java:363)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

So it seems that the error message shown in the interface is misleading, it should be a connection problem, not password problem, as far as I understand. Anyone knows how to solve this problem?

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.

Answer 2

On Mac OS 10.6 I had many of the same problems described above:

1. First I had the CREDENTIAL_ERROR.

2. I tried creating a new server, as suggested in answer 2. However, I accidentally added the wrong password (it should be left blank), and started getting "wrong user name or password" messages. I was not able to change the password.

3. I then started getting the CREDENTIAL_ERROR again.

4. The solution was suggested by answer 3, that there is another process running. I decided to try completely deleting all of the servers on my Eclipse setup, and then adding a new server, as described in answer 2.

That worked beautifully, and I was immediately up and running (remembering to leave the password blank this time through)