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NullPointerException during emfcode generation phase [message #1734501]

Wed, 08 June 2016 23:33

Arseniy Isakov

Messages: 118
Registered: May 2012

Senior Member

Hello
I am trying to generate classes from ecore model. During generation I get NullPointer exception.
Can you please take a look. Archive of my project is attached
Thanks
Arseniy Isakov

Attachment: org.tura.metamodel.zip
(Size: 811.83KB, Downloaded 88 times)

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Re: NullPointerException during emfcode generation phase [message #1734502 is a reply to message #1734501]

Thu, 09 June 2016 00:01

Eclipse User

I am not sure if this is the answer: You use URL addresses in all ECore metamodels (in EMF form) except domain.emf. In domain.emf, you import from your project space, not from the registered packages, which are accessible via URL. Try to change the import statements in domain.emf to those URLs.

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Re: NullPointerException during emfcode generation phase [message #1734569 is a reply to message #1734502]

Thu, 09 June 2016 13:12

Arseniy Isakov

Messages: 118
Registered: May 2012

Senior Member

I have tried to change import to my local disk but it doesn't help
Arseniy Isakov

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Re: NullPointerException during emfcode generation phase [message #1734698 is a reply to message #1734569]

Fri, 10 June 2016 12:05

Antonio Garcia-Dominguez

Messages: 594
Registered: January 2010
Location: Birmingham, UK

Senior Member

The NPE is due to the fact that EMF's code generator is trying to find the GenModel for one of the imported EPackages (Artifact) and is not finding it in the domain.genmodel file. It works when you open the .genmodel file manually, right-click on the top element and then use "Generate Editor code", so the "EMF Generator" editor must be applying some kind of secret sauce that Eugenia does not know about Smile

.

Could you open a bug report about this, so I can have a look at it when I can? Here:

https://bugs.eclipse.org/bugs/enter_bug.cgi?product=epsilon

[Updated on: Fri, 10 June 2016 19:13]

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Re: NullPointerException during emfcode generation phase [message #1734744 is a reply to message #1734698]

Fri, 10 June 2016 23:11

Arseniy Isakov

Messages: 118
Registered: May 2012

Senior Member

I have created bug
https://bugs.eclipse.org/bugs/show_bug.cgi?id=495925

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Re: NullPointerException during emfcode generation phase [message #1735112 is a reply to message #1734744]

Wed, 15 June 2016 15:30

Antonio Garcia-Dominguez

Messages: 594
Registered: January 2010
Location: Birmingham, UK

Senior Member

I fixed the bug the other day - please feel free to upgrade to the latest interim and try it out. If it still does not work, let me know!

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Re: NullPointerException during emfcode generation phase [message #1735155 is a reply to message #1735112]

Wed, 15 June 2016 23:00

Arseniy Isakov

Messages: 118
Registered: May 2012

Senior Member

Hi Antonio
I have updated my version of epsilon from http://download.eclipse.org/epsilon/interim/
But if I run my build.xml still getting NPE.
Thanks
Arseniy Isakov

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