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Scrapbook Bug [message #889699]

Tue, 19 June 2012 13:43

Alan Farroll

Messages: 60
Registered: June 2012

Member

Hello,

I am new to Eclipse and Java and formally from a VB background. I am following a tutorial good tutorial by Mark Dexter on the sourceforge link on Eclipse. (I am unable to post the link)

On lesson 3 it asks to highlight 2+2 in the Scrapbook and "inspect" the code but I just receive an error box stating "Unable to launch scrapbook VM". If I click on the details button it provides further information;

Cannot connect to VM
socket closed

Then in the console view the output is;

ERROR: transport error 202: connect failed: Connection refused
ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [../../../src/share/back/debugInit.c:690]
FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197

Can someone assist please.

Thanks in advance

Alan

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Re: Scrapbook Bug [message #889888 is a reply to message #889699]

Wed, 20 June 2012 07:23

Dani Megert

Messages: 3802
Registered: July 2009

Senior Member

On 19.06.2012 15:43, Alan Farroll wrote:
> Hello,
>
> I am new to Eclipse and Java and formally from a VB background. I am
> following a tutorial good tutorial by Mark Dexter on the sourceforge
> link on Eclipse. (I am unable to post the link)
> On lesson 3 it asks to highlight 2+2 in the Scrapbook and "inspect"
> the code but I just receive an error box stating "Unable to launch
> scrapbook VM". If I click on the details button it provides further
> information;
>
> Cannot connect to VM
> socket closed
>
> Then in the console view the output is;
>
> ERROR: transport error 202: connect failed: Connection refused
> ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
> JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports
> initialized [../../../src/share/back/debugInit.c:690]
> FATAL ERROR in native method: JDWP No transports initialized,
> jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197
>
> Can someone assist please.
Check whether your firewall blocks the connection.

Dani
>
> Thanks in advance
>
> Alan

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Re: Scrapbook Bug [message #889940 is a reply to message #889888]

Wed, 20 June 2012 10:17

Alan Farroll

Messages: 60
Registered: June 2012

Member

Hi Dani,

Thanks for your response.

Can you give a bit more information on this because I found some other information on the Internet about the firewall, but some suggest it is a setting actually on the Eclipse application, while others say it is a certain port number.

However, my organisation have our PC's setup where we cannot change Firewall settings and the Firewall On\Off options are disabled with the Off setting selected.

Any other help would be appreciated

Thanks you

Alan

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Re: Scrapbook Bug [message #890124 is a reply to message #889940]

Thu, 21 June 2012 08:12

Dani Megert

Messages: 3802
Registered: July 2009

Senior Member

On 20.06.2012 12:17, Alan Farroll wrote:
> Hi Dani,
>
> Thanks for your response.
>
> Can you give a bit more information on this because I found some other
> information on the Internet about the firewall, but some suggest it is
> a setting actually on the Eclipse application, while others say it is
> a certain port number.
It's not a fixed port but just one that's free at that point and it
would only be on your localhost. If this is blocked you're doomed.

Dani
>
> However, my organisation have our PC's setup where we cannot change
> Firewall settings and the Firewall On\Off options are disabled with
> the Off setting selected.
>
> Any other help would be appreciated
>
> Thanks you
>
> Alan

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Re: Scrapbook Bug [message #890209 is a reply to message #890124]

Thu, 21 June 2012 13:18

Alan Farroll

Messages: 60
Registered: June 2012

Member

Hi Dani,

As with my other problem, having my organisation allow the specific Java function to be not blocked by the organisation firewall has solved this.

Thanks again

Alan

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