Provisional API: This interface is part of an interim API that is still
under development and expected to change significantly before reaching
stability.
Corresponds to the JPA annotation
javax.persistence.UniqueConstraint
Provisional API: This interface is part of an interim API that is still
under development and expected to change significantly before reaching
stability.
Something in Java has changed (typically either the compilation unit's
source code or the Java classpath); update the JPA compilation unit's
state to be in synch with the source code etc.