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NoClassDefFound on programmatic launch of the families2persons example [message #897763]

Wed, 25 July 2012 08:37

Stefan L

Messages: 13
Registered: July 2012

Junior Member

Hi,

I'm getting a NoClassDefFoundError when running the famlies2persons example from http://www.eclipse.org/forums/index.php/m/632793/. I just use exactly the same source code and got my paths right. There is no problem when I run the transformation via the atl run configuration manually!

As im rather new to atl i would be pleased if someone could help me on this issue. The error at occurs at amh.createModelLoader();:

//AtlModelHandler and ModelLoader init
    		AtlModelHandler.registerDefaultHandler("EMF", new AtlEMFModelHandler());   		
	    	AtlModelHandler amh = AtlModelHandler.getDefault("EMF");
	    	ModelLoader ml = amh.createModelLoader();

I'm using the atl 3.3 jars as user library in my java application project.

Error message in detail:

Exception in thread "main" java.lang.NoClassDefFoundError: org/eclipse/core/runtime/Platform
	at org.eclipse.m2m.atl.drivers.emf4atl.EMFModelLoader.<clinit>(EMFModelLoader.java:61)
	at org.eclipse.m2m.atl.drivers.emf4atl.AtlEMFModelHandler.createModelLoader(AtlEMFModelHandler.java:43)
	at Families2Persons.main(Families2Persons.java:21)

Regards
Stefan

[Updated on: Wed, 25 July 2012 09:43]

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Re: NoClassDefFound on programmatic launch of the families2persons example [message #898437 is a reply to message #897763]

Thu, 26 July 2012 11:41

Ronan B

Messages: 273
Registered: July 2009

Senior Member

Hi Stefan,
It sounds like your environment is not set up properly. See http://wiki.eclipse.org/ATL_Howtos#How_do_I_launch_transformations_programmatically.3F

From the error it is pretty clear the ATL jars don't have a hamdle to the eclipse runtime.
Regards,
Ronan

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Re: NoClassDefFound on programmatic launch of the families2persons example [message #898520 is a reply to message #898437]

Thu, 26 July 2012 14:08

Stefan L

Messages: 13
Registered: July 2012

Junior Member

Thanks alot Ronan Smile

I just had to include the emf and eclipse jars into my user library and it is working fine now!

Stefan

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Re: NoClassDefFound on programmatic launch of the families2persons example [message #899523 is a reply to message #898520]

Wed, 01 August 2012 09:38

Emwedish Endargachew

Messages: 27
Registered: April 2011

Junior Member

Hi Stefan,

It is not still working for me, can you tell me what version of the EMF and Eclipse jars you added?

thanks in advance,
Emwedish

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Re: NoClassDefFound on programmatic launch of the families2persons example [message #900130 is a reply to message #899523]

Sat, 04 August 2012 11:40

Stefan L

Messages: 13
Registered: July 2012

Junior Member

Hi Emwedish,

I'm using the latest Juno Eclipse, JDK 1.7 as Compiler. Besides ATL Version 3.3, I copied and added the following Jars from the eclipse plugin folder to my user library in my project folder:

http:// i.imgur.com/wAeH0.jpg (please remove the whitespace after // in the link.

Hope it helps.

Greetings
Stefan

[Updated on: Sat, 04 August 2012 11:41]

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