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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/HV" style="color: #3b73af; text-decoration: none">Hibernate Validator</a> / <a href="https://hibernate.atlassian.net/browse/HV-1504" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-de9862ea-34cb-4b6d-987f-303f324d0140" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HV-1504" style="color: #3b73af; text-decoration: none">HV-1504</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/HV-1504" style="color: #3b73af; text-decoration: none">ClassCastException when validating input of Spring MVC mapping in Weblogic 12c</a> </span> </td>
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<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="mihalcin.patrik" id="email_mihalcin.patrik" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=mihalcin.patrik" style="color:#6c797f;; color: #3b73af; text-decoration: none">Patrik Mihalcin</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">I have Spring Boot (1.5.7.RELEASE) web application, which contains spring-boot-starter-web dependency, which transitively pulls in org.hibernate:hibernate-validator:5.3.5.Final<br><br>I have Spring MVC mapping<br>{code:java}<br>public ... processEvent(@Valid @RequestBody UpstreamEvent event) {}<br>{code}<br><br>When the application is deployed to Tomcat, validation works.<br>When the application is deployed to Weblogic, the application throws ClassCastException<br><br>When the web request comes in, the input gets validated by Validator and uses hibernate validator (HV) to get the job done.<br>HV calls <br>{code:java}<br>Persistence.getPersistenceUtil().isLoaded( traversableObject, traversableProperty.getName() );<br>{code}<br> in <br>{code:java}<br>JPATraversableResolver.isReachable<br>{code}<br>Then <br>{code:java}<br>Persistence.getProviders();<br>{code}<br> is called, whereas in Tomcat there is only 1 Hibernate provider, in weblogic there are 4 (hibernate one kept atop):<br>* org.hibernate.jpa.HibernatePersistenceProvider<br>* org.eclipse.persistence.jpa.PersistenceProvider<br>* org.apache.openjpa.persistence.PersistenceProviderImpl<br>* kodo.persistence.PersistenceProviderImpl<br><br>Code in Persistence#PersistenceUtil<br><br>{code:java}<br> new PersistenceUtil() {<br> public boolean isLoaded(Object entity, String attributeName) {<br> List<PersistenceProvider> providers = Persistence.getProviders();<br> for ( PersistenceProvider provider : providers ) {<br> final LoadState state = provider.getProviderUtil().isLoadedWithoutReference( entity, attributeName );<br> if ( state == LoadState.UNKNOWN ) continue;<br> return state == LoadState.LOADED;<br> }<br> for ( PersistenceProvider provider : providers ) {<br> final LoadState state = provider.getProviderUtil().isLoadedWithReference( entity, attributeName );<br> if ( state == LoadState.UNKNOWN ) continue;<br> return state == LoadState.LOADED;<br> }<br> return true;<br> }<br>{code}<br><br>tries to iterate through all providers, but second one blows up with exceptions:<br><br>{noformat}<br>javax.validation.ValidationException: HV000041: Call to TraversableResolver.isReachable() threw an exception.<br> at org.hibernate.validator.internal.engine.ValidatorImpl.isReachable(ValidatorImpl.java:1652)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.isValidationRequired(ValidatorImpl.java:1628)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validateMetaConstraint(ValidatorImpl.java:612)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:583)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraintsForSingleDefaultGroupElement(ValidatorImpl.java:527)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraintsForDefaultGroup(ValidatorImpl.java:495)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:460)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:410)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.validate(ValidatorImpl.java:207)<br> at org.springframework.validation.beanvalidation.SpringValidatorAdapter.validate(SpringValidatorAdapter.java:118)<br> at org.springframework.boot.autoconfigure.web.WebMvcValidator.validate(WebMvcValidator.java:69)<br> at org.springframework.validation.DataBinder.validate(DataBinder.java:891)<br>{noformat}<br><br><br>{noformat}<br>Caused by: java.lang.ClassCastException: org.eclipse.persistence.jpa.PersistenceProvider cannot be cast to javax.persistence.spi.PersistenceProvider<br> at javax.persistence.Persistence$1.isLoaded(Persistence.java:110)<br> at org.hibernate.validator.internal.engine.resolver.JPATraversableResolver.isReachable(JPATraversableResolver.java:47)<br> at org.hibernate.validator.internal.engine.resolver.DefaultTraversableResolver.isReachable(DefaultTraversableResolver.java:128)<br> at org.hibernate.validator.internal.engine.resolver.CachingTraversableResolverForSingleValidation.isReachable(CachingTraversableResolverForSingleValidation.java:36)<br> at org.hibernate.validator.internal.engine.ValidatorImpl.isReachable(ValidatorImpl.java:1643)<br>{noformat}<br><br>The prioritization of classes in weblogic.xml doesn't help out here.<br>For the sake of completeness, I also provide my weblogic.xml content:<br><br>{noformat}<br><?xml version='1.0' encoding='UTF-8'?><br><weblogic-web-app xmlns="http://xmlns.oracle.com/weblogic/weblogic-web-app"<br> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"<br> xsi:schemaLocation="http://xmlns.oracle.com/weblogic/weblogic-web-app<br> http://xmlns.oracle.com/weblogic/weblogic-web-app/1.4/weblogic-web-app.xsd"><br><br> <container-descriptor><br> <prefer-web-inf-classes>false</prefer-web-inf-classes><br> <prefer-application-packages><br> <package-name>com.google.*</package-name><br> <package-name>javax.persistence.*</package-name><br> <package-name>javax.persistence.spi*</package-name><br> <package-name>org.apache.commons.*</package-name><br> <package-name>org.hibernate.*</package-name><br> <package-name>javax.validation.*</package-name><br> <package-name>org.jboss.logging.*</package-name><br> <package-name>com.fasterxml.classmate.*</package-name><br> <package-name>org.joda.*</package-name><br> <package-name>org.springframework.*</package-name><br> <package-name>org.slf4j.*</package-name><br> <package-name>ch.qos.logback.*</package-name><br> <package-name>org.objectweb.asm.*</package-name><br> <package-name>antlr.*</package-name><br> <package-name>javassist.*</package-name><br> </prefer-application-packages><br> </container-descriptor><br><br> <context-root>/mer-web/</context-root><br><br> <charset-params><br> <input-charset><br> <resource-path>*</resource-path><br> <java-charset-name>UTF-8</java-charset-name><br> </input-charset><br> </charset-params><br><br></weblogic-web-app><br>{noformat}<br><br>I added similar issue on StackOverflow: https://stackoverflow.com/questions/46894495/hibernate-validator-weblogic-12c-classcastexception-when-validating-spring-mvc</span> <span class="diffaddedchars" style="background-color:#ddfade;"><br><br>Do you happen to know how to overcome this issue?<br>My assumption is that HV could look up persistence providers in different way.</span> </td>
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