[hibernate-issues] [Hibernate-JIRA] Created: (HHH-4084) @UniqueConstraint(columnNames="") causes StringIndexOutOfBoundsException

[Ondra Žižka (JIRA)]

@UniqueConstraint(columnNames="") causes StringIndexOutOfBoundsException
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                 Key: HHH-4084
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4084
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.3.0.GA
            Reporter: Ondra Žižka
            Priority: Trivial


Empty string in columnNames attribute causes StringIndexOutOfBoundsException:

@Entity
@Table( name="items", uniqueConstraints=@UniqueConstraint(columnNames="") )
public class Item implements Serializable { ... }

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Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: 0
	at java.lang.String.charAt(String.java:686)
	at org.hibernate.mapping.Column.setName(Column.java:84)
	at org.hibernate.mapping.Column.<init>(Column.java:65)
	at org.hibernate.cfg.AnnotationConfiguration.buildUniqueKeyFromColumnNames(AnnotationConfiguration.java:591)
	at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:348)
	at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1148)
	at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1226)
	at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:173)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:854)
	at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:425)
	at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:131)


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