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ECommandService in Workbench.init() is null [message #565501]

Tue, 08 December 2009 05:24

Eclipse User

Hello,

i made an application oriented on the contacts demo. Just a window with a part containing a TableViewer and an exit command. But when i try to start the application i get a NullPointerException at line 313 in the Workbench.init(). This means that the ECommandService is null when trying to define a category:

ECommandService cs = (ECommandService) workbenchContext.get(ECommandService.class.getName());
Category cat = cs.defineCategory(MApplication.class.getName(), "Application Category", null);

I also tried the e4 tuorial from Lars Vogel and get the same error but the contacts demo works great. Maybe somebody can help me on that. Thanks in advance.

I'm using Eclipse 3.6M3 with e4M2 as target platform.

jens

Re: ECommandService in Workbench.init() is null [message #565532 is a reply to message #565501]

Tue, 08 December 2009 05:36

Eclipse User

Are you sure the equinox.ds stuff is part of your launch config? The
problem with ds is that no plugin has a dependency on it and so you need
to add it manually to the launch.

We discussed in our last e4 call a better error handling to help users
find the problem.

Tom

jens schrieb:
> Hello,
>
> i made an application oriented on the contacts demo. Just a window with
> a part containing a TableViewer and an exit command. But when i try to
> start the application i get a NullPointerException at line 313 in the
> Workbench.init(). This means that the ECommandService is null when
> trying to define a category:
>
> ECommandService cs = (ECommandService)
> workbenchContext.get(ECommandService.class.getName());
> Category cat = cs.defineCategory(MApplication.class.getName(),
> "Application Category", null);
>
> I also tried the e4 tuorial from Lars Vogel and get the same error but
> the contacts demo works great. Maybe somebody can help me on that.
> Thanks in advance.
>
> I'm using Eclipse 3.6M3 with e4M2 as target platform.
>
> jens

Re: ECommandService in Workbench.init() is null [message #567489 is a reply to message #565501]

Thu, 14 January 2010 00:45

Eclipse User

>> I also tried the e4 tuorial from Lars Vogel and get the same error but
>> the contacts demo works great. Maybe somebody can help me on that.
>> Thanks in advance.
>>
>> I'm using Eclipse 3.6M3 with e4M2 as target platform.
>>
>> jens

Hi Jens,

my blog entry / tutorial was a little outdated. I updated the tutorial
to the Eclipse e4 milestone from 15.01.2010 (coming Friday):
http://www.vogella.de/articles/EclipseE4/article.html

Cheers, Lars

--
http://www.vogella.de/ - Eclipse plugin and Eclipse RCP Tutorials
http://www.twitter.com/vogella - vogella on Twitter

Re: ECommandService in Workbench.init() is null [message #567533 is a reply to message #567489]

Thu, 14 January 2010 03:08

Eclipse User

Thanks for this update and also your other excellent tutorials. They helped me a lot working with Eclipse RCP.

Jens Keller

Re: ECommandService in Workbench.init() is null [message #567559 is a reply to message #567533]

Thu, 14 January 2010 14:58

Eclipse User

Hello Jens,

I'm happy to hear this. :) Cheers, Lars

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