Support NOWAIT for "SELECT ... FOR UPDATE" with JPA interfaces
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          Key: HHH-5009
          URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5009
        Project: Hibernate Core
      Issue Type: Improvement
  Affects Versions: 3.5.0-CR-2
     Environment: Oracle / Derby
       Reporter: Sergey Vladimirov


Test case description:
- DERBY dialect extended to add /* +NOWAIT */ SQL comment to check if it's actually used.
- if it's working, log should contain
--- "org.hibernate.SQL         DEBUG select entity0_.id as id0_0_, entity0_.value as value0_0_ from entities entity0_ where entity0_.id=? for update with rs /* +NOWAIT */"
-- but currently it
--- "org.hibernate.SQL         DEBUG select entity0_.id as id0_0_, entity0_.value as value0_0_ from entities entity0_ where entity0_.id=? for update with rs"

It seems LockOptions (like "javax.persistence.lock.timeout") are lost when converting from JPA to Hibernate. The possible place of error, from my point of view, is loadFromDatasource() (DefaultLoadEventListener:499), where persister is loaded depending only on LockMode without paying attention to lockOptions (including timeout).

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