org.hibernate.test.generatedkeys.seqidentity.SequenceIdentityTest.testSequenceIdentityGenerator

org.hibernate.test.annotations.lob.LobWithSequenceIdentityGeneratorTest.testLobInsertUpdateDeleteSelect

fail with NPE on oracle12c

Stacktrace:

java.lang.NullPointerException
	at oracle.jdbc.driver.AutoKeyInfo.initMetaDataColumnIndexes(AutoKeyInfo.java:423)
	at oracle.jdbc.driver.AutoKeyInfo.initMetaData(AutoKeyInfo.java:396)
	at oracle.jdbc.driver.OracleReturnResultSet.getMetaData(OracleReturnResultSet.java:77)
	at org.hibernate.id.IdentifierGeneratorHelper.get(IdentifierGeneratorHelper.java:122)
	at org.hibernate.id.IdentifierGeneratorHelper.getGeneratedIdentity(IdentifierGeneratorHelper.java:92)
	at org.hibernate.id.SequenceIdentityGenerator$Delegate.executeAndExtract(SequenceIdentityGenerator.java:112)
	at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2975)
	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3487)
	at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
	at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:377)
.....

https://hibernate.atlassian.net/browse/HHH-8519