There are some unit tests that are failing on non-default dialects due to things like:

• DDL containing reserved words (e.g. "User", "key");
• tests that use ID generators not available in all dialects;
• column in primary key that is nullable (fails on DB22).

Tests:

org.hibernate.jpa.test.criteria.enumcollection.EnumIsMemberTest.testQueryEnumCollection
org.hibernate.test.type.converter.ElementCollectionTests.testSimpleConvertUsage
org.hibernate.test.annotations.indexcoll.IndexedCollectionTest.testEmbeddableWithEntityKey
org.hibernate.jpa.test.graphs.EntityGraphUsingFetchGraphTest.fetchAttributeNodeFromSubgraph
org.hibernate.jpa.test.graphs.EntityGraphUsingFetchGraphTest.fetchSubGraphFromSubgraph
org.hibernate.jpa.test.graphs.EntityGraphUsingFetchGraphTest.fetchUsingHql