Cannot invoke "org.hibernate.boot.spi.MetadataBuildingContext.getMetadataCollector()" because "this.metadataBuildingContext" is null

Hibernate ORM
1

Hi Team, I upgraded the spring boot project and hibernate. I use postgresdb and have some entities with ENUM-type columns.

like:-
@Enumerated(EnumType.STRING)
@Column(columnDefinition = "status_enum")
@Type(PostgreSQLEnumType.class)
 private Status status

package -  import com.vladmihalcea.hibernate.type.basic.PostgreSQLEnumType

and on start it is throwing NULL pointer exception. I am sharing stack trace and MVN tree dependency. Please suggest or let me know if I am doing something wrong here.

stack trace:- Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaSharedEM_entityManagerFactory': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:377)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:135)
	at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:688)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:512)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1332)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1162)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:560)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:365)
	... 95 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Cannot invoke "org.hibernate.boot.spi.MetadataBuildingContext.getMetadataCollector()" because "this.metadataBuildingContext" is null
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1770)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:598)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:520)
	at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:365)
	... 107 common frames omitted
Caused by: java.lang.NullPointerException: Cannot invoke "org.hibernate.boot.spi.MetadataBuildingContext.getMetadataCollector()" because "this.metadataBuildingContext" is null
	at org.hibernate.type.spi.TypeConfiguration$Scope.getDialect(TypeConfiguration.java:459)
	at org.hibernate.type.EnumType$LocalJdbcTypeIndicators.getDialect(EnumType.java:516)
	at org.hibernate.type.descriptor.jdbc.VarcharJdbcType.shouldUseMaterializedLob(VarcharJdbcType.java:90)
	at org.hibernate.type.descriptor.jdbc.VarcharJdbcType.resolveIndicatedType(VarcharJdbcType.java:79)
	at org.hibernate.type.descriptor.java.BasicJavaType.getRecommendedJdbcType(BasicJavaType.java:33)
	at org.hibernate.type.descriptor.java.StringJavaType.getRecommendedJdbcType(StringJavaType.java:56)
	at org.hibernate.type.EnumType.configureUsingReader(EnumType.java:180)
	at org.hibernate.type.EnumType.setParameterValues(EnumType.java:142)
	at com.vladmihalcea.hibernate.type.basic.PostgreSQLEnumType.setParameterValues(PostgreSQLEnumType.java:46)
	at org.hibernate.mapping.MappingHelper.injectParameters(MappingHelper.java:111)
	at org.hibernate.mapping.BasicValue.setExplicitCustomType(BasicValue.java:836)
	at org.hibernate.boot.model.internal.BasicValueBinder.fillSimpleValue(BasicValueBinder.java:1363)
	at org.hibernate.boot.model.internal.SetBasicValueTypeSecondPass.doSecondPass(SetBasicValueTypeSecondPass.java:27)
	at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1870)
	at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1815)
	at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:331)
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1380)
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1451)
	at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:75)
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:376)
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409)
	at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396)
	at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:352)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1817)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1766)
	... 114 common frames omitted

mvn tree:- 
+- org.springframework.boot:spring-boot-starter-web:jar:3.1.4:compile
+- org.postgresql:postgresql:jar:42.4.1:runtime
 |  \- org.checkerframework:checker-qual:jar:3.5.0:runtime
+- com.vladmihalcea:hibernate-types-60:jar:2.21.1:compile
 |  +- javax.xml.bind:jaxb-api:jar:2.3.0:compile
 |  \- jakarta.xml.bind:jakarta.xml.bind-api:jar:4.0.1:compile
 |     \- jakarta.activation:jakarta.activation-api:jar:2.1.2:compile
 +- org.hibernate.orm:hibernate-core:jar:6.3.1.Final:compile
 |  +- jakarta.persistence:jakarta.persistence-api:jar:3.1.0:compile
 |  +- jakarta.transaction:jakarta.transaction-api:jar:2.0.1:compile
 |  +- org.jboss.logging:jboss-logging:jar:3.5.3.Final:compile
 |  +- io.smallrye:jandex:jar:3.1.2:runtime
 |  +- com.fasterxml:classmate:jar:1.5.1:compile
 |  +- net.bytebuddy:byte-buddy:jar:1.14.8:runtime
 |  +- org.glassfish.jaxb:jaxb-runtime:jar:4.0.3:runtime
 |  |  \- org.glassfish.jaxb:jaxb-core:jar:4.0.3:runtime
 |  |     +- org.eclipse.angus:angus-activation:jar:2.0.1:runtime
 |  |     +- org.glassfish.jaxb:txw2:jar:4.0.3:runtime
 |  |     \- com.sun.istack:istack-commons-runtime:jar:4.1.2:runtime
 |  +- jakarta.inject:jakarta.inject-api:jar:2.0.1:runtime
 |  \- org.antlr:antlr4-runtime:jar:4.10.1:compile
 +- org.hibernate.common:hibernate-commons-annotations:jar:6.0.6.Final:compile
 +- io.hypersistence:hypersistence-utils-hibernate-62:jar:3.5.3:compile
 |  \- io.hypersistence:hypersistence-tsid:jar:2.1.1:compile
 +- org.hibernate.validator:hibernate-validator:jar:8.0.1.Final:compile
 |  \- jakarta.validation:jakarta.validation-api:jar:3.0.2:compile
2

Hibernate 6.3 has support for native enums out of the box. Try removing @Type(PostgreSQLEnumType.class)

3

@beikov Thanks. I tried removing the @Type
and its saying

Caused by: org.postgresql.util.PSQLException: ERROR: operator does not exist: status_enum = character varying
4

Well, then stop comparing apples to oranges :wink:

What query are you executing?

5

It is a simple select query. Query Like SELECT * FROM USER WHERE status = 'ACTIVE' here status is enum type.

Before upgrading it was working fine. We were using <dependency> <groupId>com.vladmihalcea</groupId> <artifactId>hibernate-types-52</artifactId> <version>2.21.1</version> </dependency> which support for PostgreSQLEnumType with Hibernate @TypeDefs

import com.vladmihalcea.hibernate.type.basic.PostgreSQLEnumType;
 @TypeDef(name = "pgsql_enum", typeClass = PostgreSQLEnumType.class)

 @Type(type = "pgsql_enum")
 @Column(name = "status", columnDefinition = "status_enum")
private Status status;

TypeDef is deprecated now.
And regarding the same problem, I found one stack overflow postgresql - Hibernate 6+ Unable to map java enum to postgres enum - Stack Overflow where someone said adding ```

Type(PostgreSQLEnumType.class)


And if I am lowering the hibernate version to 6.2.9. then getting the exception.

`Caused by: org.hibernate.tool.schema.spi.SchemaManagementException: Schema-validation: wrong column type encountered in column [status] in table [user]; found ["status_enum" (Types#VARCHAR)], but expecting [status_enum (Types#OTHER)]`
6

Your query is wrong and just worked by accident before because prior to Hibernate 6 there was no proper type validation for comparison predicates. Use a query like from User u where u.status = Status.ACTIVE

7

@beikov Sorry!! My bad.

In our case, tables have - a database-specific Enumerated column type. That is the reason for importing PostgreSQLEnumType.class from hypersistence-utils-hibernate.

Yes, Passing the params(enum - Status.ACTIVE ) to the repository find query the same way you mentioned.
Other queries are working fine, Only queries having an enum field throw that org.postgresql.util.PSQLException: ERROR: operator does not exist: status_enum = character varying

8

Remove the use of PostgreSQLEnumType, with Hibernate 6.3 you don’t need that anymore. If you fix your query like I showed you, this should work just fine.

9

@beikov ok, I will remove that. I will try Hibernate 6.3 as you said removing PostgreSQLEnumType will work and support our custom enum datatype between the spring application and database communication. Right?

10

Yes, that is correct