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                                                    <th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Change By:</th> 
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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">When enabling the schema validation through {{hibernate.hbm2ddl.auto=validate}}, starting from ORM 5.4.0.CR1 up to 5.4.5.Final, due to [HHH-12973] fix and 1db476dbd5ec4f852472b953d50a8caa073efd6d commit, the validation of a sequence not being of BIGINT type fails.<br><br>In class {{org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorLegacyImpl}}, method {{extractMetadata()}} calls {{resultSetStartValueSize()}} that in turn calls {{resultSet.getLong(column)}}.<br>If the sequence is defined as<br>{{CREATE SEQUENCE \[dbo].\[SampleSequence] }}<br>{{AS \[int]}}<br>{{START WITH 1}}<br>{{INCREMENT BY 1}}<br>{{MINVALUE 1}}<br>{{MAXVALUE 100}}<br><br><br>the underlying jdbc type will be INT, resulting in a java.lang.Integer and causing this exception during schema validation (even if that sequence is not used at all):<br><br>{{javax.persistence.PersistenceException: \[PersistenceUnit: PromagWMS] Unable to build Hibernate SessionFactory}}<br>{{at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:1012) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:938) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:56) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79) ~\[javax.persistence-api-2.2.jar:2.2]}}<br>{{... 4 more \[...]}}<br>{{Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Long}}<br>{{at com.microsoft.sqlserver.jdbc.SQLServerResultSet.getLong(SQLServerResultSet.java:2328) ~\[mssql-jdbc-7.4.1.jre8.jar:?]}}<br>{{at com.zaxxer.hikari.pool.HikariProxyResultSet.getLong(HikariProxyResultSet.java) ~\[HikariCP-3.4.1.jar:?]}}<br>{{at org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorLegacyImpl.resultSetStartValueSize(SequenceInformationExtractorLegacyImpl.java:129) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.tool.schema.extract.internal.SequenceInformationExtractorLegacyImpl.extractMetadata(SequenceInformationExtractorLegacyImpl.java:59) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.initializeSequences(DatabaseInformationImpl.java:65) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.&lt;init&gt;(DatabaseInformationImpl.java:59) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.tool.schema.internal.Helper.buildDatabaseInformation(Helper.java:155) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.tool.schema.internal.AbstractSchemaValidator.doValidation(AbstractSchemaValidator.java:61) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:192) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:73) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.internal.SessionFactoryImpl.&lt;init&gt;(SessionFactoryImpl.java:320) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:462) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:935) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:56) ~\[hibernate-core-5.4.5.Final.jar:5.4.5.Final]}}<br>{{at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79) ~\[javax.persistence-api-2.2.jar:2.2]}}<br>{{... 4 more \[...]}}<br><br><br>My workaround for MSSQL and my specific use-case, is just to change the sequence query string by using a custom dialect that converts columns into BIGINT type:<br>{{@Override}}<br>{{public String getQuerySequencesString() \{}}<br>{{return "SELECT sequence_name"}}<br>{{+ ", sequence_catalog"}}<br>{{+ ", sequence_schema"}}<br>{{+ ", CONVERT(BIGINT, start_value) start_value"}}<br>{{+ ", CONVERT(BIGINT, minimum_value) minimum_value"}}<br>{{+ ", CONVERT(BIGINT, maximum_value) maximum_value"}}<br>{{+ ", CONVERT(BIGINT, increment) increment"}}<br>{{+ " FROM INFORMATION_SCHEMA.SEQUENCES";}}<br>{{}}}<br><br><br>Since class {{SequenceInformationExtractorLegacyImpl}} just casts those columns to java.lang.Long, I think a similar approach should be taken for every possible dialect</span> <span class="diffaddedchars" style="background-color:#ddfade;">, or the explicit cast to Long should be changed to something more robust</span> <span class="diffcontext">..</span> <span class="diffremovedchars" style="background-color: #ffe7e7; text-decoration:line-through;">.</span> <span class="diffaddedchars" style="background-color:#ddfade;"><br><br></span> </td> 
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