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

Wed, 25 July 2012 04:37

Eclipse User

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 05:43] by Moderator

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

Thu, 26 July 2012 07:41

Eclipse User

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

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

Thu, 26 July 2012 10:08

Eclipse User

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

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

Wed, 01 August 2012 05:38

Eclipse User

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

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

Sat, 04 August 2012 07:40

Eclipse User

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 07:41] by Moderator

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