Hello,
we have some projects created with Hibernate 4. At moving them to Hibernate 5.2.1 we run into a problem with Mysql databases:

When the @Table name of an Entity is set to a quoted String like in the following example,
the table can be created with hibernate.
But when"javax.persistence.schema-generation.database.action" or "hibernate.hbm2ddl.auto" is set to "validate", it doesn't know the table any more.

Entity:

@Entity
@Table(name = "`Language`")
public class Language {
	
	private int id;
	private String description;

	@Id
	@GeneratedValue(strategy = GenerationType.AUTO)
	public int getId() {
		return id;
	}
	...
}

The database table for this entity is created at first application start with hibernate's schema generation without problems:

<property name="javax.persistence.schema-generation.database.action" value="create-drop" />

After switching this property to

<property name="javax.persistence.schema-generation.database.action" value="validate" />

now the schema validation doesn't find this table any more:

...
Caused by: org.hibernate.tool.schema.spi.SchemaManagementException: Schema-validation: missing table [`Language`]
	at org.hibernate.tool.schema.internal.SchemaValidatorImpl.validateTable(SchemaValidatorImpl.java:130)
	at org.hibernate.tool.schema.internal.SchemaValidatorImpl.performValidation(SchemaValidatorImpl.java:100)
	at org.hibernate.tool.schema.internal.SchemaValidatorImpl.doValidation(SchemaValidatorImpl.java:67)
...

With Hibernate 4.3, validation works for such entities.