[hibernate-issues] [Hibernate-JIRA] Resolved: (HV-524) java.util.NoSuchElementException in type level validation using EclipseLink

java.util.NoSuchElementException in type level validation using EclipseLink --------------------------------------------------------------------------- Key: HV-524 URL: https://hibernate.onjira.com/browse/HV-524 Project: Hibernate Validator Issue Type: Bug Components: validators Affects Versions: 4.2.0.Final Environment: EclipseLink 2.2.0 Reporter: sinuhepop Assignee: Hardy Ferentschik Fix For: 4.3.0.Alpha1 Attachments: HV-524.zip, logShowingProblem.txt When EclipseLink obtains an entity from database, it does a validation. It works ok with field level validators, but throws an exception with type level ones. The problem is that _SingleThreadCachedTraversableResolver_ sends an "empty" _pathToTraversableObject_ to EL's BeanValidationListener, who finally fails when calling {code} pathToTraversableObject.iterator().next().getName() {code} I don't know who (HV or EL) is responsible of the issue, but it worked with HV-4.0.2.GA. Thanks for your effort. Sinuhé. {noformat} Caused by: javax.validation.ValidationException: Call to TraversableResolver.isReachable() threw an exception at org.hibernate.validator.engine.ValidatorImpl.isValidationRequired(ValidatorImpl.java:1251) ~[hibernate-validator-4.2.0.Final.jar:4.2.0.Final] at org.hibernate.validator.engine.ValidatorImpl.validateConstraint(ValidatorImpl.java:448) ~[hibernate-validator-4.2.0.Final.jar:4.2.0.Final] at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForDefaultGroup(ValidatorImpl.java:397) ~[hibernate-validator-4.2.0.Final.jar:4.2.0.Final] at org.hibernate.validator.engine.ValidatorImpl.validateConstraintsForCurrentGroup(ValidatorImpl.java:361) ~[hibernate-validator-4.2.0.Final.jar:4.2.0.Final] at org.hibernate.validator.engine.ValidatorImpl.validateInContext(ValidatorImpl.java:313) ~[hibernate-validator-4.2.0.Final.jar:4.2.0.Final] at org.hibernate.validator.engine.ValidatorImpl.validate(ValidatorImpl.java:139) ~[hibernate-validator-4.2.0.Final.jar:4.2.0.Final] at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener.validateOnCallbackEvent(BeanValidationListener.java:84) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener.preUpdate(BeanValidationListener.java:72) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.descriptors.DescriptorEventManager.notifyListener(DescriptorEventManager.java:671) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.descriptors.DescriptorEventManager.notifyEJB30Listeners(DescriptorEventManager.java:641) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.descriptors.DescriptorEventManager.executeEvent(DescriptorEventManager.java:200) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.descriptors.changetracking.DeferredChangeDetectionPolicy.calculateChanges(DeferredChangeDetectionPolicy.java:85) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.descriptors.changetracking.DeferredChangeDetectionPolicy.calculateChangesForExistingObject(DeferredChangeDetectionPolicy.java:54) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.calculateChanges(UnitOfWorkImpl.java:623) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitToDatabaseWithChangeSet(UnitOfWorkImpl.java:1496) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.commitRootUnitOfWork(RepeatableWriteUnitOfWork.java:264) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.commitAndResume(UnitOfWorkImpl.java:1130) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commitInternal(EntityTransactionImpl.java:84) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] ... 73 common frames omitted Caused by: java.util.NoSuchElementException: null at java.util.Collections$EmptyIterator.next(Unknown Source) ~[na:1.7.0] at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener$AutomaticLifeCycleValidationTraversableResolver.isRootObjectPath(BeanValidationListener.java:180) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.eclipse.persistence.internal.jpa.metadata.listeners.BeanValidationListener$AutomaticLifeCycleValidationTraversableResolver.isReachable(BeanValidationListener.java:123) ~[eclipselink-2.2.0.jar:2.2.0.v20110202-r8913] at org.hibernate.validator.engine.resolver.SingleThreadCachedTraversableResolver.isReachable(SingleThreadCachedTraversableResolver.java:46) ~[hibernate-validator-4.2.0.Final.jar:4.2.0.Final] at org.hibernate.validator.engine.ValidatorImpl.isValidationRequired(ValidatorImpl.java:1242) ~[hibernate-validator-4.2.0.Final.jar:4.2.0.Final] ... 90 common frames omitted {noformat}