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https://issues.apache.org/jira/browse/OPENJPA-367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12526849
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Albert Lee commented on OPENJPA-367:
------------------------------------
>From initial investigation, here is the call stack that shows the call path to
>CFMetaDataParser.classForName()
CFMetaDataParser.classForName(String, String, boolean, ClassLoader) line: 307
XMLPersistenceMetaDataParser(CFMetaDataParser).classForName(String, boolean)
line: 285
XMLPersistenceMetaDataParser.classForName(String) line: 1679
XMLPersistenceMetaDataParser.startClass(String, Attributes) line: 727
XMLPersistenceMetaDataParser(CFMetaDataParser).startElement(String,
Attributes) line: 108
XMLPersistenceMetaDataParser(XMLMetaDataParser).startElement(String, String,
String, Attributes) line: 432
SAXParserImpl$JAXPSAXParser(AbstractSAXParser).startElement(QName,
XMLAttributes, Augmentations) line: not available
XMLSchemaValidator.startElement(QName, XMLAttributes, Augmentations) line:
not available
XMLNSDocumentScannerImpl.scanStartElement() line: not available
XMLNSDocumentScannerImpl$NSContentDispatcher(XMLDocumentFragmentScannerImpl$FragmentContentDispatcher).dispatch(boolean)
line: not available
XMLNSDocumentScannerImpl(XMLDocumentFragmentScannerImpl).scanDocument(boolean)
line: not available
XIncludeAwareParserConfiguration(XML11Configuration).parse(boolean) line: not
available
XIncludeAwareParserConfiguration(XML11Configuration).parse(XMLInputSource)
line: not available
SAXParserImpl$JAXPSAXParser(XMLParser).parse(XMLInputSource) line: not
available
SAXParserImpl$JAXPSAXParser(AbstractSAXParser).parse(InputSource) line: not
available
SAXParserImpl.parse(InputSource, DefaultHandler) line: not available
XMLPersistenceMetaDataParser(XMLMetaDataParser).parseNewResource(Reader,
String) line: 376
XMLPersistenceMetaDataParser(XMLMetaDataParser).parse(MetaDataIterator,
boolean) line: 318
XMLPersistenceMetaDataParser(XMLMetaDataParser).parse(MetaDataIterator) line:
295
XMLPersistenceMetaDataParser(XMLMetaDataParser).parse(URL) line: 268
PersistenceMetaDataFactory.parseXML(URL, Class, int, ClassLoader) line: 247
PersistenceMetaDataFactory.load(Class, int, ClassLoader) line: 198
MetaDataRepository.getMetaDataInternal(Class, ClassLoader) line: 470
MetaDataRepository.getMetaData(Class, ClassLoader, boolean) line: 290
PCEnhancer.<init>(OpenJPAConfiguration, BCClass, MetaDataRepository,
ClassLoader) line: 242
PCEnhancer.run(OpenJPAConfiguration, String[], PCEnhancer$Flags,
MetaDataRepository, BytecodeWriter, ClassLoader) line: 4349
PCEnhancer.run(OpenJPAConfiguration, String[], Options) line: 4296
PCEnhancer.main(String[]) line: 4268
In the failing case, serp.Strings.toClass() method returns a different Class
object from the Class object used by the MetaDataRepository, as a result, the
look up of the meta data from the MetaDataRepository._meta map will not find
the meta data, even there is one in the _meta map with a different Class object
key.
If a target is passed to the enhencer, serp.Strings.toClass() returns the same
Class object, hence the look up in the MetaDataRepository succeeded.
This implies serp returns a entity Class object using a different classloader.
From what I notice, both calls (pass & fail cases) to the
serp.Strings.toClass() method uses the same TemporaryClassLoader.
Since I have no access to the Serp code, I don't know what Serp does and what
is the difference that cause the failure.
I am looking for someone who can shred some light into this problem.
Thanks.
Albert Lee.
> PCEnhancer does not find meta data for entities using pure XML annotation
> -------------------------------------------------------------------------
>
> Key: OPENJPA-367
> URL: https://issues.apache.org/jira/browse/OPENJPA-367
> Project: OpenJPA
> Issue Type: Bug
> Components: kernel
> Affects Versions: 1.0.0
> Environment: All platforms
> Reporter: Albert Lee
> Attachments: OPENJPA-367.test.jar
>
>
> When an entity is defined using pure XML (i.e. no annotation in the entity
> class), the enhancer does not recognized the meta data and no enhancing will
> take place: E.g.
> -----------------------------------------
> C:\temp\test>runPcEnhancer.bat
> C:\temp\test>java -cp
> C:\temp\test\;C:\temp\test\openjpa-1.1.0-SNAPSHOT.jar;C:\temp\test\utils.jar;C:\temp\test\geronimo-jpa_3.0_spec-1.0.jar;C:\temp\test\geronimo-jta_1.1_spec-1.1.jar
> org.apache.openjpa.enhance.PCEnhancer
> 15 EntityUnit_JSE TRACE [main] openjpa.Runtime - Setting the following
> properties from "file:/C:/temp/test/META-INF/persistence.xml" into
> configuration: {openjpa.Id=EntityUnit_JSE, openjpa.Log=DefaultLevel=TRACE,
> openjpa.MetaDataFactory=jpa(Resources=META-INF/jpamappings.xml,
> Types=test.XMLDatatypeSupportTestEntity)}
> 31 EntityUnit_JSE TRACE [main] openjpa.Runtime - No cache marshaller found
> for id org.apache.openjpa.conf.MetaDataCacheMaintenance.
> 47 EntityUnit_JSE INFO [main] openjpa.Tool - No targets were given.
> Running on all classes in your persistent classes list, or all metadata files
> in classpath directories if you have not listed your persistent classes. Use
> -help to display tool usage information.
> 62 EntityUnit_JSE TRACE [main] openjpa.MetaData - Scanning resource
> "META-INF/jpamappings.xml" for persistent types.
> 62 EntityUnit_JSE TRACE [main] openjpa.MetaData - Scan of
> "META-INF/jpamappings.xml" found persistent types
> [Ljava.lang.String;@3a183a18.
> 62 EntityUnit_JSE TRACE [main] openjpa.MetaData - Mapping resource
> location "file:/C:/temp/test/META-INF/jpamappings.xml" to persistent types
> "[test.XMLDatatypeSupportTestEntity]".
> 62 EntityUnit_JSE TRACE [main] openjpa.MetaData - Scanning resource
> "META-INF/orm.xml" for persistent types.
> 62 EntityUnit_JSE TRACE [main] openjpa.MetaData -
> parsePersistentTypeNames() found [test.XMLDatatypeSupportTestEntity].
> 62 EntityUnit_JSE TRACE [main] openjpa.MetaData - Found 1 classes with
> metadata in 15 milliseconds.
> 62 EntityUnit_JSE TRACE [main] openjpa.Tool - Enhancer running on type
> "test.XMLDatatypeSupportTestEntity".
> 93 EntityUnit_JSE TRACE [main] openjpa.MetaData - Loading metadata for
> "class test.XMLDatatypeSupportTestEntity" under mode "[META]".
> 125 EntityUnit_JSE TRACE [main] openjpa.MetaData - Parsing resource
> "file:/C:/temp/test/META-INF/jpamappings.xml".
> 156 EntityUnit_JSE TRACE [main] openjpa.MetaData - Parsing class
> "test.XMLDatatypeSupportTestEntity".
> 172 EntityUnit_JSE TRACE [main] openjpa.MetaData - Generating default
> metadata for type "test.XMLDatatypeSupportTestEntity".
> 172 EntityUnit_JSE TRACE [main] openjpa.MetaData - Using reflection for
> metadata generation.
> 187 EntityUnit_JSE TRACE [main] openjpa.MetaData - Parsing class
> "test.XMLDatatypeSupportTestEntity".
> 187 EntityUnit_JSE TRACE [main] openjpa.MetaData - Parsing package
> "test.XMLDatatypeSupportTestEntity".
> 187 EntityUnit_JSE TRACE [main] openjpa.MetaData - Finished parsing
> metadata resource "file:/C:/temp/test/META-INF/jpamappings.xml".
> 187 EntityUnit_JSE TRACE [main] openjpa.MetaData - Parsing class
> "test.XMLDatatypeSupportTestEntity".
> 187 EntityUnit_JSE TRACE [main] openjpa.Enhance - Enhancing type "class
> test.XMLDatatypeSupportTestEntity".
> 203 EntityUnit_JSE WARN [main] openjpa.Enhance - Type "class
> test.XMLDatatypeSupportTestEntity" has no metadata; enhancing as persistence
> aware. If you intended for "class test.XMLDatatypeSupportTestEntity" to be
> persistence-capable, then this means that OpenJPA could not find any metadata
> for "class test.XMLDatatypeSupportTestEntity". This can happen if the
> directory containing your metadata is not in your CLASSPATH, or if your
> metadata files are not named properly. See the documentation on metadata
> placement for more information.
> 203 EntityUnit_JSE TRACE [main] openjpa.Tool - The class does not have
> metadata - enhanced as persistence-aware.
> -----------------------------------------
> However if the target is specified, the enhancement will occur, E.g.
> -----------------------------------------
> C:\temp\test>runPcEnhancer.bat test.XMLDatatypeSupportTestEntity
> C:\temp\test>java -cp
> C:\temp\test\;C:\temp\test\openjpa-1.1.0-SNAPSHOT.jar;C:\temp\test\utils.jar;C:\temp\test\geronimo-jpa_3.0_spec-1.0.jar;C:\temp\test\geronimo-jta_1.1_spec-1.1.jar
> org.apache.openjpa.enhance.PCEnhancer test.XMLDatatypeSupportTestEntity
> 15 EntityUnit_JSE TRACE [main] openjpa.Runtime - Setting the following
> properties from "file:/C:/temp/test/META-INF/persistence.xml" into
> configuration: {openjpa.Id=EntityUnit_JSE, openjpa.Log=DefaultLevel=TRACE,
> openjpa.MetaDataFactory=jpa(Resources=META-INF/jpamappings.xml,
> Types=test.XMLDatatypeSupportTestEntity)}
> 47 EntityUnit_JSE TRACE [main] openjpa.Runtime - No cache marshaller found
> for id org.apache.openjpa.conf.MetaDataCacheMaintenance.
> 78 EntityUnit_JSE TRACE [main] openjpa.Runtime - No cache marshaller found
> for id org.apache.openjpa.conf.MetaDataCacheMaintenance.
> 94 EntityUnit_JSE TRACE [main] openjpa.Tool - Enhancer running on type
> "class test.XMLDatatypeSupportTestEntity".
> 125 EntityUnit_JSE TRACE [main] openjpa.MetaData - Loading metadata for
> "class test.XMLDatatypeSupportTestEntity" under mode "[META]".
> 125 EntityUnit_JSE TRACE [main] openjpa.MetaData - Scanning resource
> "META-INF/jpamappings.xml" for persistent types.
> 125 EntityUnit_JSE TRACE [main] openjpa.MetaData - Scan of
> "META-INF/jpamappings.xml" found persistent types
> [Ljava.lang.String;@20962096.
> 140 EntityUnit_JSE TRACE [main] openjpa.MetaData - Mapping resource
> location "file:/C:/temp/test/META-INF/jpamappings.xml" to persistent types
> "[test.XMLDatatypeSupportTestEntity]".
> 140 EntityUnit_JSE TRACE [main] openjpa.MetaData - Scanning resource
> "META-INF/orm.xml" for persistent types.
> 140 EntityUnit_JSE TRACE [main] openjpa.MetaData -
> parsePersistentTypeNames() found [test.XMLDatatypeSupportTestEntity].
> 140 EntityUnit_JSE TRACE [main] openjpa.MetaData - Found 1 classes with
> metadata in 15 milliseconds.
> 156 EntityUnit_JSE TRACE [main] openjpa.MetaData - Parsing resource
> "file:/C:/temp/test/META-INF/jpamappings.xml".
> 187 EntityUnit_JSE TRACE [main] openjpa.MetaData - Parsing class
> "test.XMLDatatypeSupportTestEntity".
> 187 EntityUnit_JSE TRACE [main] openjpa.MetaData - Generating default
> metadata for type "test.XMLDatatypeSupportTestEntity".
> 187 EntityUnit_JSE TRACE [main] openjpa.MetaData - Using reflection for
> metadata generation.
> 203 EntityUnit_JSE TRACE [main] openjpa.MetaData - Parsing class
> "test.XMLDatatypeSupportTestEntity".
> 219 EntityUnit_JSE TRACE [main] openjpa.MetaData - Finished parsing
> metadata resource "file:/C:/temp/test/META-INF/jpamappings.xml".
> 219 EntityUnit_JSE TRACE [main] openjpa.MetaData - Set persistence-capable
> superclass of "test.XMLDatatypeSupportTestEntity" to "null".
> 219 EntityUnit_JSE TRACE [main] openjpa.MetaData - Resolving metadata for
> "[EMAIL PROTECTED]".
> 219 EntityUnit_JSE TRACE [main] openjpa.MetaData - Resolving field
> "[EMAIL PROTECTED]".
> 219 EntityUnit_JSE TRACE [main] openjpa.MetaData - Resolving field
> "[EMAIL PROTECTED]".
> 250 EntityUnit_JSE TRACE [main] openjpa.MetaData - Preparing mapping for
> "test.XMLDatatypeSupportTestEntity".
> 250 EntityUnit_JSE TRACE [main] openjpa.MetaData - Resolving mapping for
> "[EMAIL PROTECTED]".
> 250 EntityUnit_JSE TRACE [main] openjpa.Enhance - Enhancing type "class
> test.XMLDatatypeSupportTestEntity".
> 312 EntityUnit_JSE TRACE [main] openjpa.MetaData - Clearing metadata
> repository "[EMAIL PROTECTED]".
> -----------------------------------------
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