[news.eclipse.modeling.m2m] Re: [ATL] random crashes?

[Rene Ladan <r.c.ladan@xxxxxx>]

Rene Ladan wrote:
> William Piers wrote:
> > Hello,
> >
> > answers below (and sorry for the late...) :
> >
> > Rene Ladan a écrit :
> > > Rene Ladan wrote:
> > > > Rene Ladan wrote:
> > > > > Rene Ladan wrote:
> > > > > > Hi,
> > > > > >
> > > > > > I seem to get random crashes: the transformation is bound to 
> > > > > > crash, but the exact point differs from invocation to invocation
> >
> > Do you encounter the same issue running your transformation both 
> > programmatically and using launch configs ? I mean, do you think the 
> > error comes from your code or the ATL transformation ?
> I got the ATL perspective working again, it seems the crash comes from ATL
> itself (I'm using 2.0.0 RC4 at the moment).  When I launch the 
> configuration
> manually, I get an 'internal error' window with this trace:
>
> SEVERE: The class 'Node' is not a valid classifier
> java.lang.IllegalArgumentException: The class 'Node' is not a valid 
> classifier
>     at 
> org.eclipse.emf.ecore.impl.EFactoryImpl.create(EFactoryImpl.java:235)
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.createObject(XMLHelperImpl.java:884) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.createObject(XMLHelperImpl.java:920) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFactory(XMLHandler.java:2171) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFeatureType(XMLHandler.java:2144) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObject(XMLHandler.java:2020) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMIHandler.createObject(XMIHandler.java:131)
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleFeature(XMLHandler.java:1825) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1023) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:87) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:1001) 
>
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:712)
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMIHandler.startElement(XMIHandler.java:167)
>     at 
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
>     at 
> com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown 
> Source)
>     at 
> com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown 
> Source)
>     at javax.xml.parsers.SAXParser.parse(Unknown Source)
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:181)
>     at 
> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:180) 
>
>     at 
> org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1445) 
>
>     at 
> org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1241) 
>
>     at 
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoad(ResourceSetImpl.java:255) 
>
>     at 
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.demandLoadHelper(ResourceSetImpl.java:270) 
>
>     at 
> org.eclipse.emf.ecore.resource.impl.ResourceSetImpl.getResource(ResourceSetImpl.java:397) 
>
>     at 
> org.eclipse.m2m.atl.drivers.emf4atl.ASMEMFModel.loadASMEMFModel(ASMEMFModel.java:345) 
>
>     at 
> org.eclipse.m2m.atl.engine.AtlEMFModelHandler.loadModel(AtlEMFModelHandler.java:246) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.loadModel(AtlRegularVM.java:230) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.getSourceModels(AtlRegularVM.java:148) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:304) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:426) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.launch(AtlRegularVM.java:398) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:42) 
>
>     at 
> org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:764) 
>
>     at 
> org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:614) 
>
>     at 
> org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:827) 
>
>     at 
> org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1030)
>     at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
> SEVERE: null
> java.lang.NullPointerException
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.getSourceModels(AtlRegularVM.java:150) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:304) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.runAtlLauncher(AtlRegularVM.java:426) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlRegularVM.launch(AtlRegularVM.java:398) 
>
>     at 
> org.eclipse.m2m.atl.adt.launching.AtlLaunchConfigurationDelegate.launch(AtlLaunchConfigurationDelegate.java:42) 
>
>
>     at 
> org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:764) 
>
>     at 
> org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:614) 
>
>     at 
> org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:827) 
>
>     at 
> org.eclipse.debug.internal.ui.DebugUIPlugin$7.run(DebugUIPlugin.java:1030)
>     at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
>
>
> I don't have a node 'Node' in my input models or in the (test) 
> transformation.
> There is an abstract node 'Node' in the metamodel which has non-abstract 
> specializations,
> as part of an XML description for passing parameters.  Could this be a 
> problem (metamodel +
> parameter model attached).

The parameter model loads and validates correctly when loaded into the EMF
application, so where does the 'Node not being a valid classifier' problem
come from?
The instance model also loads and validates correctly.

> Current versions:
> Eclipse I20080502-0100 (3.4.0)
> ATL 20080610-1117 (2.0.0RC4) from p2
> EMF 20080609-1234 (2.4.0) from p2
Regards,
Rene