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ANT Task VMException (Could not find model) [message #1062937]

Tue, 11 June 2013 09:20

Eclipse User

Hi,

I'm trying to create an ant task to launch my ATL transformation and when I run my ant file as ant build I get this error:

run:
[atl.loadModel] Loading model UML2 from http://www.eclipse.org/uml2/2.1.0/UML
[atl.loadModel] Loading model testKDM from http://www.eclipse.org/MoDisco/kdm/code
[atl.loadModel] Loading model PRO from http://www.eclipse.org/uml2/4.0.0/UML/Profile/L3
[atl.loadModel] Loading model kdm from platform:/resource/eu.artist.m2m.componentextraction/model/petstoreEE6.kdm
[atl.loadModel] Loading model profile from platform:/resource/eu.artist.m2m.componentextraction/model/Annotation.profile.uml
  [atl.launch] Launching transformation C:\Burak\Dev\ARTIST\ARTIST-Experiments\Atos\WP8\eu.artist.m2m.componentextraction\transformation\KDMtoUML_WA.asm using EMF-specific VM
  [atl.launch] org.eclipse.m2m.atl.engine.emfvm.VMException: Could not find model kdm

BUILD FAILED
C:\Burak\Dev\ARTIST\ARTIST-Experiments\Atos\WP8\eu.artist.m2m.componentextraction\antLaunch_test.xml:14: Could not find model kdm

Here is my ant file:

<?xml version="1.0"?>
<project name="eu.artist.m2m.componentextraction" default="run" basedir=".">
	<property name="atl.launcher" value="EMF-specific VM" />
	<target name="run">
		<atl.loadModel name="UML2" metamodel="MOF" nsUri="http://www.eclipse.org/uml2/2.1.0/UML" />
		<atl.loadModel name="testKDM" metamodel="MOF" nsUri="http://www.eclipse.org/MoDisco/kdm/code" />
		<atl.loadModel name="PRO" metamodel="MOF" nsUri="http://www.eclipse.org/uml2/4.0.0/UML/Profile/L3" />

		<atl.loadModel modelhandler="testKDM" metamodel="testKDM" name="kdm" nsUri="platform:/resource/eu.artist.m2m.componentextraction/model/petstoreEE6.kdm" />
		<atl.loadModel modelhandler="PRO" metamodel="PRO" name="profile" nsUri="platform:/resource/eu.artist.m2m.componentextraction/model/Annotation.profile.uml" />
		
		<atl.launch path="transformation/KDMtoUML_WA.asm">
			<option name="supportUML2Stereotypes" value="true" />
			<inmodel name="IN" model="kdm" />
			<inmodel name="IN2" model="profile" />
			<outmodel name="OUT" model="uml" metamodel="UML2" modelhandler="UML2" />
		</atl.launch >
		<atl.saveModel model="uml" path="model/petstoreEE6_WA.uml" />
	</target>

</project>

My transformation header:

create OUT: uml from IN: kdm, IN2: profile;

Everything seems in order and kdm model is also successfully loaded (I think) but I get this error anyway. Does anyone have any idea why I might be getting this exception?

Re: ANT Task VMException (Could not find model) [message #1062966 is a reply to message #1062937]

Tue, 11 June 2013 10:37

Eclipse User

Hello,

To check that the KDM model loading is actually correct, have you tried to "save" back this model into a different file right after having loading it?

Re: ANT Task VMException (Could not find model) [message #1062968 is a reply to message #1062966]

Tue, 11 June 2013 10:40

Eclipse User

It could also come from the fact that you are using the nsURI parameter for something that looks like a file path.
You could try to use the path parameter instead (cf. the ATL ANT Tasks documentation).

Re: ANT Task VMException (Could not find model) [message #1063084 is a reply to message #1062968]

Wed, 12 June 2013 04:42

Eclipse User

Hi Hugo,

I have changed the parameter to path but I still get the same error.

By the way, the file can be saved successfully after loading. Saved file and the original one has different encodings but I don't think that might cause an error.

Re: ANT Task VMException (Could not find model) [message #1063134 is a reply to message #1063084]

Wed, 12 June 2013 08:52

Eclipse User

I've seen that you're setting the modelhandler parameter using incorrect values (cf. ATL ANT Tasks documentation).
If using the (standard) EMF-specific VM as I guess you're doing, this parameter is not valuable and so should not be set.
Does removing it improve the situation?

Re: ANT Task VMException (Could not find model) [message #1063153 is a reply to message #1063134]

Wed, 12 June 2013 09:47

Eclipse User

I still get the same error after removing the modelhandler parameters.

I also removed everything in the code and just wrote one rule to see if the problem is with the kdm model:

rule TestRule {
	from src :profile!Element
	to tgt :uml!Profile (
		name <- src.name
	)
}

then I got this error:

  [atl.launch] org.eclipse.m2m.atl.engine.emfvm.VMException: Cannot find reference model profile
  [atl.launch] 	at __matchExtensionFamilyToProfile#2(KDMtoUML_WA.atl)
  [atl.launch] 		local variables: self=KDMtoUML_WA : ASMModule
  [atl.launch] 	at __matcher__#1(KDMtoUML_WA.atl)
  [atl.launch] 		local variables: self=KDMtoUML_WA : ASMModule
  [atl.launch] 	at main#22(KDMtoUML_WA.atl)
  [atl.launch] 		local variables: self=KDMtoUML_WA : ASMModule

I guess the problem is not just the kdm input model.

Re: ANT Task VMException (Could not find model) [message #1063202 is a reply to message #1063153]

Wed, 12 June 2013 11:35

Eclipse User

OK now I think I understand better what is the problem.
A UML profile is not a metamodel, it is actually a UML model (which conforms to the UML metamodel).
Thus, in your transformation, you have to provide your UML profile as an input model (that conforms to the UML metamodel).

Re: ANT Task VMException (Could not find model) [message #1063470 is a reply to message #1063202]

Thu, 13 June 2013 05:16

Eclipse User

Changing it didn't help.

To narrow down the problem I tried something very simple:

ANT:

<?xml version="1.0"?>
<project name="eu.artist.m2m.componentextraction" default="run" basedir=".">
	<property name="atl.launcher" value="EMF-specific VM" />
	<target name="run">
		<atl.loadModel name="UML2" metamodel="MOF" nsUri="http://www.eclipse.org/uml2/4.0.0/UML" />
		<atl.loadModel metamodel="UML2" name="uml" path="model/petstoreEE6_WA.uml" />
		<atl.launch path="transformation/KDMtoUML/KDMtoUML_WA.asm">
			<inmodel name="IN" model="uml" />
			<outmodel name="OUT" model="umlout" metamodel="UML2" />
		</atl.launch >
		<atl.saveModel model="umlout" path="model/out.uml" />
	</target>
</project>

Transformation:

create OUT: umlout from IN: uml;

rule ExtensionFamilyToProfile {
	from src :uml!Class
	to tgt :umlout!Class (
		name <- src.name
	)
}

Error:

[atl.launch] org.eclipse.m2m.atl.engine.emfvm.VMException: Cannot find reference model uml
  [atl.launch] 	at __matchExtensionFamilyToProfile#2(KDMtoUML_WA.atl)
  [atl.launch] 		local variables: self=KDMtoUML_WA : ASMModule
  [atl.launch] 	at __matcher__#1(KDMtoUML_WA.atl)
  [atl.launch] 		local variables: self=KDMtoUML_WA : ASMModule
  [atl.launch] 	at main#22(KDMtoUML_WA.atl)
  [atl.launch] 		local variables: self=KDMtoUML_WA : ASMModule

This is really weird.

If it helps, I'm using Eclipse Modeling Project Version: Juno Service Release 2
Build id: 20130225-0426

Re: ANT Task VMException (Could not find model) [message #1063479 is a reply to message #1063470]

Thu, 13 June 2013 05:32

Eclipse User

Hello,

Have you tried in parallel to launch the same transformation from a standard launch configuration to see if you get a similar error?
Also, you probably have to set the "Support UML2 stereotypes application" and "Allow inter-model references" EMF VM parameters to true.

Re: ANT Task VMException (Could not find model) [message #1063546 is a reply to message #1063479]

Thu, 13 June 2013 07:56

Eclipse User

Hi,

Thanks for your suggestions Hugo.

Yes I tried and standard launch configurations work perfectly. As for ANT tasks, setting those properties to true didn't change the result for me.

Re: ANT Task VMException (Could not find model) [message #1063605 is a reply to message #1063546]

Thu, 13 June 2013 09:46

Eclipse User

Problem solved. The issue is about inconsistency between the ATL header and the ANT task. Thanks for your suggestions Hugo.

I'll rewrite the working version of the simple example above for future reference to the people who may have a similar problem.

ANT:

<?xml version="1.0"?>
<project name="eu.artist.m2m.componentextraction" default="run" basedir=".">
	<property name="atl.launcher" value="EMF-specific VM" />
	<target name="run">
		<atl.loadModel name="UML2" metamodel="MOF" nsUri="http://www.eclipse.org/uml2/4.0.0/UML" />
		<atl.loadModel metamodel="UML2" name="uml" path="model/petstoreEE6_WA.uml" />
		<atl.launch path="transformation/KDMtoUML/KDMtoUML_WA.asm">
			<inmodel name="IN" model="uml" />
			<outmodel name="OUT" model="umlout" metamodel="UML2" />
		</atl.launch >
		<atl.saveModel model="umlout" path="model/out.uml" />
	</target>
</project>

Transformation:

create OUT: UML2 from IN: UML2;

rule SimpleRule {
	from src :UML2!Class
	to tgt :UML2!Class (
		name <- src.name
	)
}

Re: ANT Task VMException (Could not find model) [message #1063664 is a reply to message #1063605]

Thu, 13 June 2013 12:20

Eclipse User

Great, thanks!

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