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<td class="page-title-pattern-first-line " style="padding: 0; 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-12873" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-b5a5acf4-91bd-4c8c-9731-ae4bab770044" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-12873" style="color: #3b73af; text-decoration: none">HHH-12873</a> </td>
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<td style="vertical-align: top;; padding: 0; 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-12873" style="color: #3b73af; text-decoration: none">Spring Boot 2.0 and orm.xml: Duplicate XML entry</a> </span> </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="jonasvonandrian" id="email_jonasvonandrian" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=jonasvonandrian" style="color:#6c797f;; color: #3b73af; text-decoration: none">Jonas von Andrian</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <span class="diffcontext">Spring Boot 2.0 builds a fat jar and the orm.xml is stored in the jar file under<br><br>/BOOT-INF/classes/META-INF/orm.xml<br><br>This leads hibernate to load the orm.xml twice. See https://github.com/spring-projects/spring-boot/issues/10363 for another case, with an easy to reproduce test.<br><br>Details: <br>The Persistence unit is as follows<br><br>{noformat}<br>PersistenceUnitInfo [<br> name: default<br> persistence provider classname: null<br> classloader: org.springframework.boot.loader.LaunchedURLClassLoader@1810399e<br> excludeUnlistedClasses: true<br> JTA datasource: null<br> Non JTA datasource: HikariDataSource (HikariPool-1)<br> Transaction type: RESOURCE_LOCAL<br> PU root URL: file:path to jar.jar<br> Shared Cache Mode: UNSPECIFIED<br> Validation Mode: AUTO<br> Jar files URLs []<br> Managed classes names [<br>... snip ...<br> ]<br> Mapping files names [<br> META-INF/orm.xml]<br> Properties []<br>{noformat}<br><br><br>The scanner finds the orm in the jar file, but the logic inside `org.hibernate.boot.model.process.internal.ScanningCoordinator#applyScanResultsToManagedResources` leads to the file being loaded a second time, causing this exception.<br><br>{noformat}<br>Caused by: java.lang.IllegalStateException: Duplicate XML entry for foo.Bar<br> at org.hibernate.cfg.annotations.reflection.XMLContext.addClass(XMLContext.java:150) ~[hibernate-core-5.3.3.Final.jar!/:5.3.3.Final]<br> at org.hibernate.cfg.annotations.reflection.XMLContext.addDocument(XMLContext.java:115) ~[hibernate-core-5.3.3.Final.jar!/:5.3.3.Final]<br> at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.<init>(AnnotationMetadataSourceProcessorImpl.java:95) ~[hibernate-core-5.3.3.Final.jar!/:5.3.3.Final]<br> at org.hibernate.boot.model.process.spi.MetadataBuildingProcess$1.<init>(MetadataBuildingProcess.java:156) ~[hibernate-core-5.3.3.Final.jar!/:5.3.3.Final]<br> at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:150) ~[hibernate-core-5.3.3.Final.jar!/:5.3.3.Final]<br> at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:904) ~[hibernate-core-5.3.3.Final.jar!/:5.3.3.Final]<br> at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:935) ~[hibernate-core-5.3.3.Final.jar!/:5.3.3.Final]<br> at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:57) ~[spring-orm-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]<br> at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]<br> at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:390) ~[spring-orm-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]<br> at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:377) ~[spring-orm-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]<br> at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]<br> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1758) ~[spring-beans-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]<br> at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1695) ~[spring-beans-5.0.8.RELEASE.jar!/:5.0.8.RELEASE]<br> ... 169 common frames omitted<br><br>{noformat}<br><br>This can be fixed with a custom scanner:<br><br>{code:</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">kotlin</span> <span class="diffaddedchars" style="background-color:#ddfade;">java</span> <span class="diffcontext">}<br></span> <span class="diffaddedchars" style="background-color:#ddfade;">// kotlin code<br></span> <span class="diffcontext">class StandardScannerFixed(descriptor: ArchiveDescriptorFactory) : StandardScanner(descriptor) {<br> constructor() : this(StandardArchiveDescriptorFactory.INSTANCE)<br><br> override fun scan(environment: ScanEnvironment?, options: ScanOptions?, parameters: ScanParameters?): ScanResult {<br> val scan = super.scan(environment, options, parameters)<br> return ScanResultImpl(<br> scan.locatedPackages,<br> scan.locatedClasses,<br> scan.locatedMappingFiles.map {<br> MappingFileDescriptorImpl(it.name.removePrefix("BOOT-INF/classes/"), it.streamAccess)<br> }.toSet()<br> )<br> }<br>}<br>{code}<br><br><br></span> </td>
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{
"@context": "http://schema.org",
"@type": "EmailMessage",
"description": "View Issue",
"potentialAction": {
"@type": "ViewAction",
"target": "https://hibernate.atlassian.net/browse/HHH-12873?inbox=true&",
"name": "View Issue"
},
"publisher": {
"@type": "Organization",
"name": "Atlassian",
"url": "https://www.atlassian.com"
}
}
</script>
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