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https://issues.apache.org/jira/browse/TUSCANY-1132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12475118
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Fuhwei Lwo commented on TUSCANY-1132:
-------------------------------------
Frank,
I think Kelvin meant detach the target dataobject from the tree, serialize it,
then put it back to the tree.
The problem occurs when a non-root dataobject in the middle of the tree was
serialized to a Java object, the Java object will contain info that was not
serialized which means the parents of the target dataobject won't be in the
Java object. When one reads the Java object back, the deserializer don't know
how to deal with those erroneous info. That's why we either need to make a copy
of the target dataobject or detach the target dataobject from its tree
temporarily.
What do you think?
> SDO Java serialization/deserialization throws an exception when the
> serialized data object is not the root and its container is of
> AnyTypeDataObject
> ----------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: TUSCANY-1132
> URL: https://issues.apache.org/jira/browse/TUSCANY-1132
> Project: Tuscany
> Issue Type: Bug
> Components: Java SDO Implementation
> Affects Versions: Java-SDO-M3
> Reporter: Fuhwei Lwo
> Fix For: Java-SDO-M3
>
> Attachments: tuscany-1132-testcase.patch
>
>
> With or without the patch of TUSCANY-1131 to fix the problem in
> XMLDocumentImpl.java, this problem always exists. With the fix from
> TUSCANY-1131, now I got this exception. I believe there are still some
> problem in the SDO Java serialization/deserialization code.
> org.eclipse.emf.ecore.resource.Resource$IOWrappedException: Value '[EMAIL
> PROTECTED] (eClass: [EMAIL PROTECTED] (name: DataObject) (instanceClassName:
> null) (abstract: true, interface: false))' is not legal. (http:///temp.xml,
> 3, 50)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.handleErrors(XMLLoadImpl.java:80)
> at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:275)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:666)
> at
> org.apache.tuscany.sdo.util.resource.SDOXMLResourceImpl.doLoad(SDOXMLResourceImpl.java:463)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.load(XMLResourceImpl.java:634)
> at
> org.apache.tuscany.sdo.helper.XMLDocumentImpl.load(XMLDocumentImpl.java:246)
> at
> org.apache.tuscany.sdo.helper.XMLDocumentImpl.load(XMLDocumentImpl.java:224)
> at
> org.apache.tuscany.sdo.helper.XMLHelperImpl.load(XMLHelperImpl.java:78)
> at
> org.apache.tuscany.sdo.helper.XMLHelperImpl.load(XMLHelperImpl.java:72)
> at
> org.apache.tuscany.sdo.helper.HelperProviderImpl$ResolvableImpl.readDataObject(HelperProviderImpl.java:210)
> at
> org.apache.tuscany.sdo.helper.HelperProviderImpl$ResolvableImpl.readExternal(HelperProviderImpl.java:150)
> at
> commonj.sdo.impl.ExternalizableDelegator.readExternal(ExternalizableDelegator.java:83)
> at
> java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1774)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1736)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1324)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:362)
> at
> org.apache.tuscany.sdo.helper.HelperProviderImpl$ResolvableImpl.readDataObject(HelperProviderImpl.java:219)
> at
> org.apache.tuscany.sdo.helper.HelperProviderImpl$ResolvableImpl.readExternal(HelperProviderImpl.java:150)
> at
> commonj.sdo.impl.ExternalizableDelegator.readExternal(ExternalizableDelegator.java:83)
> at
> java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1774)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1736)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1324)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:362)
> at
> org.apache.tuscany.sdo.test.JavaSerializeDeserializeTestCase.testAnyTypeContainer(JavaSerializeDeserializeTestCase.java:70)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:615)
> at junit.framework.TestCase.runTest(TestCase.java:154)
> at junit.framework.TestCase.runBare(TestCase.java:127)
> at junit.framework.TestResult$1.protect(TestResult.java:106)
> at junit.framework.TestResult.runProtected(TestResult.java:124)
> at junit.framework.TestResult.run(TestResult.java:109)
> at junit.framework.TestCase.run(TestCase.java:118)
> at junit.framework.TestSuite.runTest(TestSuite.java:208)
> at junit.framework.TestSuite.run(TestSuite.java:203)
> at
> org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)
> at
> org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> at
> org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> Caused by: org.eclipse.emf.ecore.xmi.IllegalValueException: Value '[EMAIL
> PROTECTED] (eClass: [EMAIL PROTECTED] (name: DataObject) (instanceClassName:
> null) (abstract: true, interface: false))' is not legal. (http:///temp.xml,
> 3, 50)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.setFeatureValue(XMLHandler.java:2418)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.setFeatureValue(XMLHandler.java:2403)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectFromFeatureType(XMLHandler.java:1920)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObject(XMLHandler.java:1788)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.handleFeature(XMLHandler.java:1566)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createDocumentRoot(XMLHandler.java:1234)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createObjectByType(XMLHandler.java:1162)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.createTopObject(XMLHandler.java:1244)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.processElement(XMLHandler.java:880)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:863)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.startElement(XMLHandler.java:627)
> at
> org.apache.tuscany.sdo.util.resource.SDOXMLResourceImpl$SDOXMLLoadImpl$XmlHandler.startElement(SDOXMLResourceImpl.java:289)
> at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
> at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
> at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:265)
> ... 40 more
> Caused by: java.lang.ClassCastException: The feature 'dataObject's type
> 'DataObject' does not permit a value of type 'DataObject'
> at
> org.eclipse.emf.ecore.impl.EStructuralFeatureImpl$BasicFeatureMapEntry.validate(EStructuralFeatureImpl.java:2843)
> at
> org.eclipse.emf.ecore.util.FeatureMapUtil.createEntry(FeatureMapUtil.java:146)
> at
> org.eclipse.emf.ecore.util.BasicFeatureMap.createEntry(BasicFeatureMap.java:94)
> at
> org.eclipse.emf.ecore.util.BasicFeatureMap.set(BasicFeatureMap.java:1051)
> at
> org.eclipse.emf.ecore.util.FeatureMapUtil$FeatureValue.set(FeatureMapUtil.java:1150)
> at
> org.eclipse.emf.ecore.impl.EStructuralFeatureImpl$InternalSettingDelegateFeatureMapDelegator.dynamicSet(EStructuralFeatureImpl.java:1401)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eDynamicSet(BasicEObjectImpl.java:709)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSet(BasicEObjectImpl.java:683)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSet(BasicEObjectImpl.java:654)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHelperImpl.setValue(XMLHelperImpl.java:1091)
> at
> org.eclipse.emf.ecore.xmi.impl.XMLHandler.setFeatureValue(XMLHandler.java:2413)
> ... 62 more
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