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NPE on transformation. [message #21720]

Fri, 03 July 2009 14:15

Juan Pedro Silva

Messages: 258
Registered: July 2009

Senior Member

Hi Dimitris, I'm trying to make the composition/transformation that we
were talking about in the other thread.
However, I'm getting a NPE when running it (whole stack below).
For what I see, the problem is while saving the results (I cleaned all
ConcurrentModificationExceptions thrown by the transf. after realizing
that where cause by opposite references).
So my guess is that the transformation should be ok.
The resulting file is created, although it's empty. The target metamodel
was previously registered.
Do you have any ideas of which could be the cause of such exception?.
Does Epsilon has any restrictions on the use of library (Ecore, UML,
XSD) types?, I believe I've seen similar error messages in other tools,
related to the use of external types . I'm using Ecore primitive types
in the target metamodel.
Regards,
Juan Pedro

java.lang.NullPointerException
at
org.eclipse.emf.ecore.impl.BasicEObjectImpl.eURIFragmentSegm ent(BasicEObjectImpl.java:294)
at
org.eclipse.emf.ecore.resource.impl.ResourceImpl.getURIFragm ent(ResourceImpl.java:671)
at
org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.getURIFragmen t(XMLResourceImpl.java:422)
at
org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.getURIFragment( XMLHelperImpl.java:718)
at
org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.getIDREF(XMLHel perImpl.java:753)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveIDRefSingle(X MLSaveImpl.java:1954)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveFeatures(XMLS aveImpl.java:1300)
at
org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElementID(XML SaveImpl.java:2667)
at
org.eclipse.emf.ecore.xmi.impl.XMISaveImpl.writeTopObjects(X MISaveImpl.java:90)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.traverse(XMLSaveI mpl.java:592)
at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.save(XMLSaveImpl. java:256)
at
org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doSave(XMLRes ourceImpl.java:205)
at
org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(Resour ceImpl.java:1344)
at
org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(Resour ceImpl.java:986)
at org.eclipse.epsilon.emc.emf.EmfModel.store(EmfModel.java:202 )
at org.eclipse.epsilon.eol.models.Model.dispose(Model.java:153)
at
org.eclipse.epsilon.emc.emf.AbstractEmfModel.dispose(Abstrac tEmfModel.java:464)
at
org.eclipse.epsilon.eol.models.ModelRepository.dispose(Model Repository.java:217)
at
org.eclipse.epsilon.eol.dt.launching.EclipseContextManager.t eardown(EclipseContextManager.java:55)
at
org.eclipse.epsilon.eml.dt.launching.EmlLaunchConfigurationD elegate.launch(EmlLaunchConfigurationDelegate.java:91)
at
org.eclipse.debug.internal.core.LaunchConfiguration.launch(L aunchConfiguration.java:764)
at
org.eclipse.debug.internal.core.LaunchConfiguration.launch(L aunchConfiguration.java:614)
at
org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(D ebugUIPlugin.java:880)
at
org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlu gin.java:1083)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

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Re: NPE on transformation. [message #21765 is a reply to message #21720]

Fri, 03 July 2009 14:17

Dimitrios Kolovos

Messages: 1776
Registered: July 2009

Senior Member

Hi Juan Pedro,

Could you please attach your programs/metamodels/models (or a minimal
subset that reproduces the problem) so that I can have a look?

Cheers,
Dimitris

Juan Pedro Silva wrote:
> Hi Dimitris, I'm trying to make the composition/transformation that we
> were talking about in the other thread.
> However, I'm getting a NPE when running it (whole stack below).
> For what I see, the problem is while saving the results (I cleaned all
> ConcurrentModificationExceptions thrown by the transf. after realizing
> that where cause by opposite references).
> So my guess is that the transformation should be ok.
> The resulting file is created, although it's empty. The target metamodel
> was previously registered.
> Do you have any ideas of which could be the cause of such exception?.
> Does Epsilon has any restrictions on the use of library (Ecore, UML,
> XSD) types?, I believe I've seen similar error messages in other tools,
> related to the use of external types . I'm using Ecore primitive types
> in the target metamodel.
> Regards,
> Juan Pedro
>
>
> java.lang.NullPointerException
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eURIFragmentSegm ent(BasicEObjectImpl.java:294)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceImpl.getURIFragm ent(ResourceImpl.java:671)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.getURIFragmen t(XMLResourceImpl.java:422)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.getURIFragment( XMLHelperImpl.java:718)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.getIDREF(XMLHel perImpl.java:753)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveIDRefSingle(X MLSaveImpl.java:1954)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveFeatures(XMLS aveImpl.java:1300)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElementID(XML SaveImpl.java:2667)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMISaveImpl.writeTopObjects(X MISaveImpl.java:90)
>
> at
> org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.traverse(XMLSaveI mpl.java:592)
> at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.save(XMLSaveImpl. java:256)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doSave(XMLRes ourceImpl.java:205)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(Resour ceImpl.java:1344)
>
> at
> org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(Resour ceImpl.java:986)
>
> at org.eclipse.epsilon.emc.emf.EmfModel.store(EmfModel.java:202 )
> at org.eclipse.epsilon.eol.models.Model.dispose(Model.java:153)
> at
> org.eclipse.epsilon.emc.emf.AbstractEmfModel.dispose(Abstrac tEmfModel.java:464)
>
> at
> org.eclipse.epsilon.eol.models.ModelRepository.dispose(Model Repository.java:217)
>
> at
> org.eclipse.epsilon.eol.dt.launching.EclipseContextManager.t eardown(EclipseContextManager.java:55)
>
> at
> org.eclipse.epsilon.eml.dt.launching.EmlLaunchConfigurationD elegate.launch(EmlLaunchConfigurationDelegate.java:91)
>
> at
> org.eclipse.debug.internal.core.LaunchConfiguration.launch(L aunchConfiguration.java:764)
>
> at
> org.eclipse.debug.internal.core.LaunchConfiguration.launch(L aunchConfiguration.java:614)
>
> at
> org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(D ebugUIPlugin.java:880)
>
> at
> org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlu gin.java:1083)
> at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

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Re: NPE on transformation. [message #21810 is a reply to message #21765]

Fri, 03 July 2009 15:11

Juan Pedro Silva

Messages: 258
Registered: July 2009

Senior Member

I just sent it to your private email box.
Regards,
Juan Pedro

Dimitris Kolovos escribió:
> Hi Juan Pedro,
>
> Could you please attach your programs/metamodels/models (or a minimal
> subset that reproduces the problem) so that I can have a look?
>
> Cheers,
> Dimitris
>
> Juan Pedro Silva wrote:
>> Hi Dimitris, I'm trying to make the composition/transformation that
>> we were talking about in the other thread.
>> However, I'm getting a NPE when running it (whole stack below).
>> For what I see, the problem is while saving the results (I cleaned
>> all ConcurrentModificationExceptions thrown by the transf. after
>> realizing that where cause by opposite references).
>> So my guess is that the transformation should be ok.
>> The resulting file is created, although it's empty. The target
>> metamodel was previously registered.
>> Do you have any ideas of which could be the cause of such exception?.
>> Does Epsilon has any restrictions on the use of library (Ecore, UML,
>> XSD) types?, I believe I've seen similar error messages in other
>> tools, related to the use of external types . I'm using Ecore
>> primitive types in the target metamodel.
>> Regards,
>> Juan Pedro
>>
>>
>> java.lang.NullPointerException
>> at
>> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eURIFragmentSegm ent(BasicEObjectImpl.java:294)
>>
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceImpl.getURIFragm ent(ResourceImpl.java:671)
>>
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.getURIFragmen t(XMLResourceImpl.java:422)
>>
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.getURIFragment( XMLHelperImpl.java:718)
>>
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.getIDREF(XMLHel perImpl.java:753)
>>
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveIDRefSingle(X MLSaveImpl.java:1954)
>>
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveFeatures(XMLS aveImpl.java:1300)
>>
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.saveElementID(XML SaveImpl.java:2667)
>>
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMISaveImpl.writeTopObjects(X MISaveImpl.java:90)
>>
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.traverse(XMLSaveI mpl.java:592)
>>
>> at org.eclipse.emf.ecore.xmi.impl.XMLSaveImpl.save(XMLSaveImpl. java:256)
>> at
>> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doSave(XMLRes ourceImpl.java:205)
>>
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(Resour ceImpl.java:1344)
>>
>> at
>> org.eclipse.emf.ecore.resource.impl.ResourceImpl.save(Resour ceImpl.java:986)
>>
>> at org.eclipse.epsilon.emc.emf.EmfModel.store(EmfModel.java:202 )
>> at org.eclipse.epsilon.eol.models.Model.dispose(Model.java:153)
>> at
>> org.eclipse.epsilon.emc.emf.AbstractEmfModel.dispose(Abstrac tEmfModel.java:464)
>>
>> at
>> org.eclipse.epsilon.eol.models.ModelRepository.dispose(Model Repository.java:217)
>>
>> at
>> org.eclipse.epsilon.eol.dt.launching.EclipseContextManager.t eardown(EclipseContextManager.java:55)
>>
>> at
>> org.eclipse.epsilon.eml.dt.launching.EmlLaunchConfigurationD elegate.launch(EmlLaunchConfigurationDelegate.java:91)
>>
>> at
>> org.eclipse.debug.internal.core.LaunchConfiguration.launch(L aunchConfiguration.java:764)
>>
>> at
>> org.eclipse.debug.internal.core.LaunchConfiguration.launch(L aunchConfiguration.java:614)
>>
>> at
>> org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(D ebugUIPlugin.java:880)
>>
>> at
>> org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlu gin.java:1083)
>>
>> at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

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