[news.eclipse.modeling.mdt.uml2] Re: Add classes to my UML2 model via ja

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[news.eclipse.modeling.mdt.uml2] Re: Add classes to my UML2 model via java code

From: p.tamisier@xxxxxxxxxxxxxx (Pierre )
Date: Fri, 5 Sep 2008 09:27:39 +0000 (UTC)
Newsgroups: eclipse.modeling.mdt.uml2
Organization: Eclipse
User-agent: NewsPortal/0.36 (http://florian-amrhein.de/newsportal)

Thanks Rafael. I used the example provided at the end of http://www.eclipse.org/newsportal/thread.php?group=eclipse.modeling.mdt.uml2

I want to do exactly the same thing but instead of creating a new model, I want to load an existing one. So I created this method :

	protected static org.eclipse.uml2.uml.Model loadModel(URI uri) {
		org.eclipse.uml2.uml.Model model_ = null;

		try {
			Resource resource = RESOURCE_SET.getResource(uri, true);

			model_ = (org.eclipse.uml2.uml.Model) EcoreUtil
				.getObjectByType(resource.getContents(),
					UMLPackage.Literals.MODEL);
		} catch (WrappedException we) {
			err(we.getMessage());
			System.exit(1);
		}

		return model_;
	}

And in my Main method, I do :

Model model = loadModel(URI.createFileURI("D:/workspace/EMFP/model/modeltest.uml"));

But I get this exception :

Exception in thread "main" java.lang.NullPointerException at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFeatureType(XMLHandler.java:2132) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObject(XMLHandler.java:2010) at org.eclipse.emf.ecore.xmi.impl.XMIHandler.createObject(XMIHandler.java:131) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleFeature(XMLHandler.java:1789) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1013) at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:87) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:991) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:711) 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.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$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:1414) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getPackageForURI(XMLHandler.java:2516) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getFactoryForPrefix(XMLHandler.java:2397) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1275) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1444) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1009) at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:87) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:991) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:711) 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.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$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:1414) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getPackageForURI(XMLHandler.java:2516) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getFactoryForPrefix(XMLHandler.java:2397) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1275) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1444) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1009) at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:87) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:991) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:711) 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.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$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:1414) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getPackageForURI(XMLHandler.java:2516) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.getFactoryForPrefix(XMLHandler.java:2397) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1275) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1444) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:1009) at org.eclipse.emf.ecore.xmi.impl.XMIHandler.processElement(XMIHandler.java:87) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:991) at org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:711) 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.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$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:1414) at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1210) 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 UML2Article.loadModel(UML2Article.java:114) at GettingStartedWithUML2.main(GettingStartedWithUML2.java:223)

Notice that the line "Resource resource = RESOURCE_SET.getResource(uri, true);" is very long to execute in debug mode. And the exception is got at this line.

Any hint would be very appreciated.
Thanks !

Regards,

P.

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  - From: Pierre
- [news.eclipse.modeling.mdt.uml2] Re: Add classes to my UML2 model via java code
  - From: Rafael Chaves

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