Thomas Bosch ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5c19f84... ) *commented* on HHH-15929 ( https://hibernate.atlassian.net/browse/HHH-15929?atlOrigin=eyJpIjoiZjlmMD... ) Re: Mapping jsonb of different types in a class inheritance hierarchy does not work. ( https://hibernate.atlassian.net/browse/HHH-15929?atlOrigin=eyJpIjoiZjlmMD... ) @Christian Beikov This is the stack trace after removing @Type(JsonType.class) but keeping @JdbcTypeCode(SqlTypes.JSON) … You can easily reproduce the behaviour in my repo https://github.com/dickerpulli/hibernate-test-case-templates ( https://github.com/dickerpulli/hibernate-test-case-templates ) java.lang.IllegalArgumentException: Could not deserialize string to java type: BasicJavaType(org.hibernate.bugs.entities.PropertyTypeA) at org.hibernate.type.format.jackson.JacksonJsonFormatMapper.fromString(JacksonJsonFormatMapper.java:42) at org.hibernate.type.descriptor.jdbc.JsonJdbcType.fromString(JsonJdbcType.java:86) at org.hibernate.type.descriptor.jdbc.JsonJdbcType$2.doExtract(JsonJdbcType.java:140) at org.hibernate.type.descriptor.jdbc.BasicExtractor.extract(BasicExtractor.java:44) at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.readCurrentRowValues(JdbcValuesResultSetImpl.java:262) at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.advance(JdbcValuesResultSetImpl.java:243) at org.hibernate.sql.results.jdbc.internal.JdbcValuesResultSetImpl.processNext(JdbcValuesResultSetImpl.java:84) at org.hibernate.sql.results.jdbc.internal.AbstractJdbcValues.next(AbstractJdbcValues.java:29) at org.hibernate.sql.results.internal.RowProcessingStateStandardImpl.next(RowProcessingStateStandardImpl.java:62) at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:198) at org.hibernate.sql.results.spi.ListResultsConsumer.consume(ListResultsConsumer.java:33) at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.doExecuteQuery(JdbcSelectExecutorStandardImpl.java:362) at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.executeQuery(JdbcSelectExecutorStandardImpl.java:168) at org.hibernate.sql.exec.internal.JdbcSelectExecutorStandardImpl.list(JdbcSelectExecutorStandardImpl.java:93) at org.hibernate.sql.exec.spi.JdbcSelectExecutor.list(JdbcSelectExecutor.java:31) at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.lambda$new$0(ConcreteSqmSelectQueryPlan.java:109) at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.withCacheableSqmInterpretation(ConcreteSqmSelectQueryPlan.java:302) at org.hibernate.query.sqm.internal.ConcreteSqmSelectQueryPlan.performList(ConcreteSqmSelectQueryPlan.java:243) at org.hibernate.query.sqm.internal.QuerySqmImpl.doList(QuerySqmImpl.java:521) at org.hibernate.query.spi.AbstractSelectionQuery.list(AbstractSelectionQuery.java:367) at org.hibernate.query.sqm.internal.QuerySqmImpl.list(QuerySqmImpl.java:1084) at org.hibernate.query.Query.getResultList(Query.java:119) at org.hibernate.bugs.JPAUnitTestCase.findFirstOne(JPAUnitTestCase.java:65) at org.hibernate.bugs.JPAUnitTestCase.hhh15929Test(JPAUnitTestCase.java:49) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63) at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329) at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293) at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) at org.junit.runners.ParentRunner.run(ParentRunner.java:413) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:69) at com.intellij.rt.junit.IdeaTestRunner$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) Caused by: com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `org.hibernate.bugs.entities.PropertyTypeA` (although at least one Creator exists): no String-argument constructor/factory method to deserialize from String value ('{"propertyA":"foo"}') at [Source: (String)""{\"propertyA\":\"foo\"}""; line: 1, column: 1] at com.fasterxml.jackson.databind.exc.MismatchedInputException.from(MismatchedInputException.java:63) at com.fasterxml.jackson.databind.DeserializationContext.reportInputMismatch(DeserializationContext.java:1733) at com.fasterxml.jackson.databind.DeserializationContext.handleMissingInstantiator(DeserializationContext.java:1358) at com.fasterxml.jackson.databind.deser.std.StdDeserializer._deserializeFromString(StdDeserializer.java:311) at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromString(BeanDeserializerBase.java:1500) at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeOther(BeanDeserializer.java:197) at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:187) at com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:323) at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4730) at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3677) at org.hibernate.type.format.jackson.JacksonJsonFormatMapper.fromString(JacksonJsonFormatMapper.java:39) ... 52 more ( https://hibernate.atlassian.net/browse/HHH-15929#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15929#add-comment?atlOrigin=ey... 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