Jef VDD ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=601ab51... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMmY2N2IxYTZk... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16268?atlOrigin=eyJpIjoiMmY2N2... ) HHH-16268 ( https://hibernate.atlassian.net/browse/HHH-16268?atlOrigin=eyJpIjoiMmY2N2... ) Exception thrown in named query with List parameter after Spring Boot 3/Hibernate 6 upgrade ( https://hibernate.atlassian.net/browse/HHH-16268?atlOrigin=eyJpIjoiMmY2N2... ) Issue Type: Bug Affects Versions: 6.1.7 Assignee: Unassigned Created: 08/Mar/2023 05:59 AM Priority: Major Reporter: Jef VDD ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=601ab51... ) I have a named query with List parameter that gets recognised as StringJavaType. example query: @NamedQueries({ @NamedQuery(name = "Test_findDistinctCustomerNames", query = "SELECT DISTINCT account.customerName " + "FROM Account account " + "WHERE UPPER(account.customerName) LIKE CONCAT('%',UPPER(:filter),'%') " + "AND (:accountNames IS NULL OR account.accountName IN (:accountNames)) " + "ORDER BY account.customerName"), }) This throws org.springframework.orm.jpa.JpaSystemException: Unknown wrap conversion requested: java.util.ArrayList to java.lang.String : org.hibernate.type.descriptor.java.StringJavaType (java.lang.String). It does not seem to fail with every execution (about 30% fail rate?). Looping over the query either fails or runs multiple times successfully in the same test. example: @Test public void findCustumerWithHibernate_noFilter() { ArrayList<String> accountNames = new ArrayList<>(); accountNames.add("accountX"); accountService.findDistinctCustomerNames(getCurrentSession(), accountNames, null); log.info("test done"); } public List<String> findDistinctCustomerNames(Session session, List<String> accountNames, String filter) { session.beginTransaction(); Query<String> findDistinctCustomerNames = session.createNamedQuery("Test_findDistinctCustomerNames", String.class); findDistinctCustomerNames.setParameter("accountNames", accountNames); findDistinctCustomerNames.setParameter("filter", filter); return findDistinctCustomerNames.getResultList(); } having a non null list of accountNames. Expected -------- I expect the test to work everytime. Additional info --------------- Project with failing test Spring/Hibernate github project with error ( https://github.com/Jef-VDD/hibernate-demo ) StackTrace: org.hibernate.HibernateException: Unknown wrap conversion requested: java.util.ArrayList to java.lang.String : org.hibernate.type.descriptor.java.StringJavaType (java.lang.String) org.hibernate.HibernateException: Unknown wrap conversion requested: java.util.ArrayList to java.lang.String : `org.hibernate.type.descriptor.java.StringJavaType` (java.lang.String) at org.hibernate.type.descriptor.java.JavaTypeHelper.unknownWrap(JavaTypeHelper.java:23) at org.hibernate.type.descriptor.java.AbstractClassJavaType.unknownWrap(AbstractClassJavaType.java:115) at org.hibernate.type.descriptor.java.StringJavaType.wrap(StringJavaType.java:103) at org.hibernate.type.descriptor.java.StringJavaType.coerce(StringJavaType.java:121) at org.hibernate.type.descriptor.java.StringJavaType.coerce(StringJavaType.java:27) at org.hibernate.query.internal.QueryParameterBindingImpl.coerce(QueryParameterBindingImpl.java:144) at org.hibernate.query.internal.QueryParameterBindingImpl.setBindValue(QueryParameterBindingImpl.java:111) at org.hibernate.query.spi.AbstractCommonQueryContract.setParameter(AbstractCommonQueryContract.java:860) at org.hibernate.query.spi.AbstractSelectionQuery.setParameter(AbstractSelectionQuery.java:708) at org.hibernate.query.sqm.internal.QuerySqmImpl.setParameter(QuerySqmImpl.java:1263) at org.hibernate.query.sqm.internal.QuerySqmImpl.setParameter(QuerySqmImpl.java:131) at be.jvdd.hibernatedemo.service.AccountService.findDistinctCustomerNames(AccountService.java:27) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) at java.base/java.lang.reflect.Method.invoke(Method.java:578) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:343) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:698) at be.jvdd.hibernatedemo.service.AccountService$$SpringCGLIB$$0.findDistinctCustomerNames(<generated>) at be.jvdd.hibernatedemo.test.HibernateAccountTest.findCustumerWithHibernate(HibernateAccountTest.java:31) at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104) at java.base/java.lang.reflect.Method.invoke(Method.java:578) at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:727) at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131) at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:156) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:147) at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:86) at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(InterceptingExecutableInvoker.java:103) at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.lambda$invoke$0(InterceptingExecutableInvoker.java:93) at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45) at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37) at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:92) at org.junit.jupiter.engine.execution.InterceptingExecutableInvoker.invoke(InterceptingExecutableInvoker.java:86) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$7(TestMethodTestDescriptor.java:217) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:213) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:138) at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:68) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:151) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:147) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:127) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:90) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:55) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:102) at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:54) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:235) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:54) ( https://hibernate.atlassian.net/browse/HHH-16268#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16268#add-comment?atlOrigin=ey... ) Get Jira notifications 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