org.hibernate.test.jpa.naturalid.MutableNaturalIdTest is failing also for same reason

Caused by: org.hibernate.MappingException: org.hibernate.dialect.Oracle10gDialect does not support identity key generation
at org.hibernate.dialect.Dialect.getIdentityColumnString(Dialect.java:766)
at org.hibernate.dialect.Dialect.getIdentityColumnString(Dialect.java:756)
at org.hibernate.mapping.Table.sqlCreateString(Table.java:504)

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