I had followed the same steps as you did.
Today I started netbeans ide again(after pc reboot).
I had no servers running. I tried to start glassfish v3 Domain and got the
same errors.
Then I started Tomcat and it started.
I ran a sample JSP project 'hello1' and it ran fine under Tomcat.
I am OK with Tomcat now, but just wondering whether using glassfish is a
must for this online course.
Also, why the course administration have provided to servers.

On Tue, Jan 19, 2010 at 10:58 AM, Marco Rieger <marco.rie...@gmx.de> wrote:

> Hi John,
>
> I have tried to reproduce your steps and have installed Tomcat via
> netbeans-6.8-ml-windows.exe. I selected ONLY Tomcat so that the rest of my
> Netbeans 6.8 installation with GlassFish v3 would not be overwritten.
> Afterwards I added the server in Netbeans 6.8 under services -> server with
> add server (or likely, I use the german version). If you need help with
> that, just ask for the specific steps.
>
> I could not reproduce your problem, but maybe it's because you have the
> tomcat running. You can't run both tomcat and glassfish on a single machine
> without further modifications. I did not get your error message but a server
> address blocked error message, so that might be a similar problem.
>
> I hope that helps you with your problem, just try to run only a single
> server. Otherwise, a full uninstall and reinstall of the netbeans package
> might help.
>
> Cheers
>
> Marco Rieger
>
> Brockhofer Str. 18
> 59597 Erwitte
>
> Mobil:    +49-(0)176-5327 0214
> Telefon:  +49-(0)2943-870 145
> Fax:      +49-(0)2943-535 786
> Email:    marco.rie...@gmx.de
>
>
> Am 18.01.2010 22:10, schrieb John Smith:
>
>  Hi All
>> I installed netneans IDE 6.8 GlassFish v3 Domain was automatically
>> installed. Everything was fine until I installed Tomcat from
>> netbeans-6.8-ml-java-windows.exe file.
>> I had to install Tomcat to go thru LAB-4002 Exercise 2.
>> After I installed Tomcat, I restarted the netbeans, but GlassFish
>> would not restart. It gave following error in server log
>>
>> Could not create the Java virtual machine.
>> Unrecognized VM option '+UnlockDiagnosticVMOptio'
>>
>> Please help.
>> John Smith
>>
>>
>
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