[OPENJPA-1046] Unique Constraint on MappedSupperClass causes NullPointerException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0-beta
• Component/s: jpa
• Assignee: Pinaki Poddar
• Reporter: Pinaki Poddar
• Created: 22/Apr/09 23:39
• Updated: 09/Mar/10 18:31
• Resolved: 12/Nov/09 08:16

Description

Defining UniqueConstraint on MappedSuperClass fails with NPE [1]

@MappedSuperclass
@Table(uniqueConstraints={@UniqueConstraint(columnNames=

{"ATTR_NAME", "OWNER"}

)})
public abstract class Attribute<T> {

While it is debatable a @Table annotation is appropriate for @MappedSuperClass, the situation must be detected and warned more gracefully than a NPE.

Also investigate whether UniqueConstraint on a MappedSuperClass should be supported.

[1] http://n2.nabble.com/UniqueConstraint-in-a-MappedSuperclass-not-working-tc2633410.html