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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-8689" style="color: #3b73af; text-decoration: none"><img src="https://hibernate.atlassian.net/images/icons/issuetypes/bug.png" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-8689" style="color: #3b73af; text-decoration: none">HHH-8689</a>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-8689" style="color: #3b73af; text-decoration: none">Cannot determine java-type from given member [null] with "properties" in Hibernate 4.2</a> </span>
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Issue Type:
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Affects Versions:
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4.2.0.Final
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Unassigned
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Attachments:
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hibernateissue.zip, server.log
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Components:
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core, entity-manager, metamodel
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Created:
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08/Nov/13 1:10 PM
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Priority:
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Reporter:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="ghu" id="email_ghu" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=ghu" style="color:#6c797f;; color: #3b73af; text-decoration: none">Gary Hu</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">When a "properties" element is defined in the mapping file, for example:</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"><properties name="refkey"><br /> <property name="field1" type="java.lang.String" column="column3" not-null="true" length="20" /><br /> <property name="field2" type="java.lang.String" column="column4" not-null="true" /><br /> </properties></p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The system throws errors:</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">14:36:32,052 TRACE <span class="error">[org.hibernate.ejb.metamodel.AttributeFactory]</span> (ServerService Thread Pool – 48) Starting attribute metadata determination <span class="error">[refkey]</span><br /> 14:36:32,052 TRACE <span class="error">[org.hibernate.ejb.metamodel.AttributeFactory]</span> (ServerService Thread Pool – 48) Determined member <span class="error">[null]</span><br /> 14:36:32,052 TRACE <span class="error">[org.hibernate.ejb.metamodel.AttributeFactory]</span> (ServerService Thread Pool – 48) Determined type [name=component<span class="error">[field1,field2]</span>, class=org.hibernate.type.EmbeddedComponentType]<br /> 14:36:32,053 TRACE <span class="error">[org.hibernate.ejb.metamodel.MetadataContext]</span> (ServerService Thread Pool – 48) Completed entity <span class="error">[org.hibernate.issue.EntityClass1]</span><br /> 14:36:32,053 ERROR <span class="error">[org.jboss.msc.service.fail]</span> (ServerService Thread Pool – 48) MSC000001: Failed to start service jboss.persistenceunit."hibernateissue-jar-0.0.1-SNAPSHOT.jar#myPU": org.jboss.msc.service.StartException in service jboss.persistenceunit."hibernateissue-jar-0.0.1-SNAPSHOT.jar#myPU": java.lang.IllegalArgumentException: Cannot determine java-type from given member <span class="error">[null]</span><br /> at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:103) <span class="error">[jboss-as-jpa-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]</span><br /> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) <span class="error">[rt.jar:1.6.0_37]</span><br /> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) <span class="error">[rt.jar:1.6.0_37]</span><br /> at java.lang.Thread.run(Thread.java:662) <span class="error">[rt.jar:1.6.0_37]</span><br /> at org.jboss.threads.JBossThread.run(JBossThread.java:122) <span class="error">[jboss-threads-2.1.0.Final-redhat-1.jar:2.1.0.Final-redhat-1]</span><br /> Caused by: java.lang.IllegalArgumentException: Cannot determine java-type from given member <span class="error">[null]</span><br /> at org.hibernate.ejb.metamodel.AttributeFactory$BaseAttributeMetadata.<init>(AttributeFactory.java:589)<br /> at org.hibernate.ejb.metamodel.AttributeFactory$SingularAttributeMetadataImpl.<init>(AttributeFactory.java:677)<br /> at org.hibernate.ejb.metamodel.AttributeFactory$SingularAttributeMetadataImpl.<init>(AttributeFactory.java:667)<br /> at org.hibernate.ejb.metamodel.AttributeFactory.determineAttributeMetadata(AttributeFactory.java:531)<br /> at org.hibernate.ejb.metamodel.AttributeFactory.buildAttribute(AttributeFactory.java:98)<br /> at org.hibernate.ejb.metamodel.MetadataContext.wrapUp(MetadataContext.java:212)<br /> at org.hibernate.ejb.metamodel.MetamodelImpl.buildMetamodel(MetamodelImpl.java:88)<br /> at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:104)<br /> at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:920)<br /> at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:904)<br /> at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:92)<br /> at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.createContainerEntityManagerFactory(PersistenceUnitServiceImpl.java:200) <span class="error">[jboss-as-jpa-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]</span><br /> at org.jboss.as.jpa.service.PersistenceUnitServiceImpl.access$600(PersistenceUnitServiceImpl.java:57) <span class="error">[jboss-as-jpa-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]</span><br /> at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:99) <span class="error">[jboss-as-jpa-7.2.1.Final-redhat-10.jar:7.2.1.Final-redhat-10]</span><br /> ... 4 more</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This issue is very similar to <a href="https://hibernate.atlassian.net/browse/HHH-4870" class="external-link" rel="nofollow" style="color: #3b73af; text-decoration: none">https://hibernate.atlassian.net/browse/HHH-4870</a> </p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">But in this case it's really regarding to the <properties> element.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The fix for <a href="https://hibernate.atlassian.net/browse/HHH-4870" title="Cannot determine java-type from given member [null]" class="issue-link" data-issue-key="HHH-4870" style="color: #3b73af; text-decoration: none"></a></p>
<del>
HHH-4870
</del> introduced a new method for Property.<br /> public boolean isSynthetic() { return false; }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The SyntheticProperty, Backref and IndexBackref all implemented <br /> @Override<br /> public boolean isSynthetic() </p> { return true; }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The "properties" seems to not be interpreted as any of SyntheticProperty, Backref and IndexBackref. </p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This is the code in org.hibernate.ejb.metamodel.AttributeFactory.java:</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">@SuppressWarnings(</p> { "unchecked" }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">)<br /> public <X, Y> AttributeImplementor<X, Y> buildAttribute(AbstractManagedType<X> ownerType, Property property) {<br /> if ( property.isSynthetic() ) </p> { // hide synthetic/virtual properties (fabricated by Hibernate) from the JPA metamodel. LOG.tracef( "Skipping synthetic property %s(%s)", ownerType.getJavaType().getName(), property.getName() ); return null; }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> LOG.trace("Building attribute <span class="error">[" + ownerType.getJavaType().getName() + "." + property.getName() + "]</span>");<br /> final AttributeContext<X> attributeContext = wrap( ownerType, property );<br /> final AttributeMetadata<X,Y> attributeMetadata =<br /> determineAttributeMetadata( attributeContext, NORMAL_MEMBER_RESOLVER );<br /> ...</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Since "properties" is not synthetic, it continue to trigger the call determineAttributeMetadata. </p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The following the code that throws the error in AttributeFactory.java:</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> // we can support method or field members here. Is there really any other valid type?<br /> if ( Field.class.isInstance( member ) ) </p> { declaredType = ( (Field) member ).getType(); }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> else if ( Method.class.isInstance( member ) ) </p> { declaredType = ( (Method) member ).getReturnType(); }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0"> else </p> { throw new IllegalArgumentException( "Cannot determine java-type from given member [" + member + "]" ); }
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Obviously, there's no any "type" associated with the "properties":<br /> <properties name="refkey"></p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I think the issue here is why the "properties" is not interpreted as synthetic so that it can escape the call determineAttributeMetadata.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I'm attaching a simple maven project with deployment archive as well as the server.log for you reference.</p>
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