Release notes

Release Notes - Hibernate ORM - Version 4.2.9 - HTML format

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Bug

[HHH-2188] - Query metadata gives NPE for polymorphic queries
[HHH-2988] - UnionSubclassEntityPersister.generateSubquery() does not use column.getQuotedName()
[HHH-3051] - NPE while query.list on a Native SQL, using L2 cache
[HHH-3453] - mess in a list of supported dialects (OracleDialect, H2Dialect, etc.)
[HHH-3482] - UnsupportedOperationException with StatelessSession
[HHH-3541] - wrong xml tags in documentation examples
[HHH-3604] - Creation of table for HiLoGenerator fails to create table of the correct to for MySQL InnoDB
[HHH-7205] - org.hibernate.ObjectNotFoundException while using Get
[HHH-7630] - JOINED classes cause exception when referenced as a Collection and using @OrderBy
[HHH-8404] - ListIndexExpression seems to be rendered incorrectly
[HHH-8638] - Unable to create unique key constraint on foreign key annotated with @UniqueConstraint
[HHH-8655] - Classloader conflicts with embedded OSGi frameworks
[HHH-8699] - Criteria API multiselect not working with Predicates
[HHH-8747] - evictQueryRegions does not evict default query region
[HHH-8765] - Column not found in Turkish locale because of toLowerCase()
[HHH-8777] - enhance-maven-plugin error : No plugin descriptor found at META-INF/maven/plugin.xml
[HHH-8779] - Bundle symbolic name error - duplicate name
[HHH-8790] - The "ESCAPE" key word is not recognized by a Hibernate filter.
[HHH-8814] - Sequence generators on HSQLDB starts by default on 0
[HHH-8822] - java.io.NotSerializableException: org.hibernate.internal.util.ValueHolder
[HHH-8850] - UnsupportedOperationException when using addScalar on querys created via NamedSQLQueryDefinition
[HHH-8863] - org.hibernate.engine.internal.StatisticalLoggingSessionEventListener not displaying properly time for partial flushes
[HHH-8864] - PostgreSQL & H2 dialect incorrect for count distinct tuples
[HHH-8900] - annotations OneToOne test fail with some sequence supporting dialects
[HHH-8922] - ClassLoaderServiceImpl introduces random classpath ordering via HashSet
[HHH-8930] - BaseCoreFunctionalTestCase#rebuildSessionFactory() not releasing sessions
[HHH-8942] - correct logging hotspots
[HHH-8983] - SQLWarning objects attached to Sybase statements contribute to significant growth in memory footprint
[HHH-8989] - Logic Mismatch Between AbstractQueryImpl and LimitHelper For setMaxResults(0)

Task

[HHH-8990] - Improve backwards compatibility of 4.2 branch by reintroducing the deleted NonFlushedChanges interface

Improvement

[HHH-2298] - Hibernate only uses info level on logger message to disencourage Hibernate Pool Manager. This should be a warning.
[HHH-5289] - Remove unnecessary security checks in property accessors
[HHH-6911] - Read/write DiscriminatorValue from/to DiscriminatorColumn when combined with InheritanceType#JOINED
[HHH-8831] - Give a better message about where a problem with a mapping could be
[HHH-8845] - More informative error message for EntityType.replace
[HHH-8878] - Improve scalability of TableGenerator: PooledLoOptimizer
[HHH-8939] - Reduce contention on initialization of ColumnNameCache instances by loaders
[HHH-8946] - Optimize JdbcCoordinatorImpl for CPU performance
[HHH-8947] - Optimize performance of ServiceRegistry for intense lookup, small contents and almost no writes
[HHH-8950] - Avoid array allocation in #getColumnSpan(Mapping)
[HHH-8954] - Avoid LockOptions allocation in LoadEvent unless strictly required
[HHH-8961] - Reduce allocation cost of org.hibernate.cache.spi.CacheKey instances
[HHH-8977] - Smarter allocation prediction for HQLQueryPlan.performList
[HHH-8984] - Remove unnecessary fields from EntityEntry
[HHH-8991] - Avoid frequent lookup of EntityPersister
[HHH-9001] - Unnecessary Stack object being allocated in org.hibernate.engine.internal.Cascade
[HHH-9003] - Avoid allocating arrays in most methods of ComponentType

Patch

[HHH-4638] - Allow hibernate connect to Firebird database without set "hibernate.dialect" property

Deprecation

[HHH-8674] - Hibernate 4.1 documentation uses method buildSessionFactory() on Configuration object despite its deprecation.

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Release notes - Hibernate ORM - Version 4.2.9
                
<h2>        Bug
</h2>
<ul>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-2188'>HHH-2188</a>] -         Query metadata gives NPE for polymorphic queries
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-2988'>HHH-2988</a>] -         UnionSubclassEntityPersister.generateSubquery() does not use column.getQuotedName()
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-3051'>HHH-3051</a>] -         NPE while query.list on a Native SQL, using L2 cache
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-3453'>HHH-3453</a>] -         mess in a list of supported dialects (OracleDialect, H2Dialect, etc.)
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-3482'>HHH-3482</a>] -         UnsupportedOperationException with StatelessSession
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-3541'>HHH-3541</a>] -         wrong xml tags in documentation examples
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-3604'>HHH-3604</a>] -         Creation of  table for HiLoGenerator fails to create table of the correct to for MySQL InnoDB
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-7205'>HHH-7205</a>] -         org.hibernate.ObjectNotFoundException while using Get
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-7630'>HHH-7630</a>] -         JOINED classes cause exception when referenced as a Collection and using @OrderBy
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8404'>HHH-8404</a>] -         ListIndexExpression seems to be rendered incorrectly
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8638'>HHH-8638</a>] -         Unable to create unique key constraint on foreign key annotated with @UniqueConstraint
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8655'>HHH-8655</a>] -         Classloader conflicts with embedded OSGi frameworks
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8699'>HHH-8699</a>] -         Criteria API multiselect not working with Predicates
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8747'>HHH-8747</a>] -         evictQueryRegions does not evict default query region
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8765'>HHH-8765</a>] -         Column not found in Turkish locale because of toLowerCase()
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8777'>HHH-8777</a>] -         enhance-maven-plugin error : No plugin descriptor found at META-INF/maven/plugin.xml
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8779'>HHH-8779</a>] -         Bundle symbolic name error - duplicate name
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8790'>HHH-8790</a>] -         The &quot;ESCAPE&quot; key word is not recognized by a Hibernate filter.
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8814'>HHH-8814</a>] -         Sequence generators on HSQLDB starts by default on 0
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8822'>HHH-8822</a>] -         java.io.NotSerializableException: org.hibernate.internal.util.ValueHolder
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8850'>HHH-8850</a>] -         UnsupportedOperationException when using addScalar on querys created via NamedSQLQueryDefinition
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8863'>HHH-8863</a>] -         org.hibernate.engine.internal.StatisticalLoggingSessionEventListener not displaying properly time for partial flushes
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8864'>HHH-8864</a>] -         PostgreSQL &amp; H2 dialect incorrect for count distinct tuples
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8900'>HHH-8900</a>] -         annotations OneToOne test fail with some sequence supporting dialects
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8922'>HHH-8922</a>] -         ClassLoaderServiceImpl introduces random classpath ordering via HashSet
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8930'>HHH-8930</a>] -         BaseCoreFunctionalTestCase#rebuildSessionFactory() not releasing sessions
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8942'>HHH-8942</a>] -         correct logging hotspots
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8983'>HHH-8983</a>] -         SQLWarning objects attached to Sybase statements contribute to significant growth in memory footprint
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8989'>HHH-8989</a>] -         Logic Mismatch Between AbstractQueryImpl and LimitHelper For setMaxResults(0)
</li>
</ul>
            
<h2>        Task
</h2>
<ul>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8990'>HHH-8990</a>] -         Improve backwards compatibility of 4.2 branch by reintroducing the deleted NonFlushedChanges interface
</li>
</ul>
    
<h2>        Improvement
</h2>
<ul>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-2298'>HHH-2298</a>] -         Hibernate only uses info level on logger message to disencourage Hibernate Pool Manager. This should be a warning.
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-5289'>HHH-5289</a>] -         Remove unnecessary security checks in property accessors
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-6911'>HHH-6911</a>] -         Read/write DiscriminatorValue from/to DiscriminatorColumn when combined with InheritanceType#JOINED
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8831'>HHH-8831</a>] -         Give a better message about where a problem with a mapping could be
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8845'>HHH-8845</a>] -         More informative error message for EntityType.replace 
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8878'>HHH-8878</a>] -         Improve scalability of TableGenerator: PooledLoOptimizer
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8939'>HHH-8939</a>] -         Reduce contention on initialization of ColumnNameCache instances by loaders
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8946'>HHH-8946</a>] -         Optimize JdbcCoordinatorImpl for CPU performance
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8947'>HHH-8947</a>] -         Optimize performance of ServiceRegistry for intense lookup, small contents and almost no writes
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8950'>HHH-8950</a>] -         Avoid array allocation in #getColumnSpan(Mapping)
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8954'>HHH-8954</a>] -         Avoid LockOptions allocation in LoadEvent unless strictly required
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8961'>HHH-8961</a>] -         Reduce allocation cost of org.hibernate.cache.spi.CacheKey instances
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8977'>HHH-8977</a>] -         Smarter allocation prediction for HQLQueryPlan.performList
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8984'>HHH-8984</a>] -         Remove unnecessary fields from EntityEntry
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8991'>HHH-8991</a>] -         Avoid frequent lookup of EntityPersister
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-9001'>HHH-9001</a>] -         Unnecessary Stack object being allocated in org.hibernate.engine.internal.Cascade
</li>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-9003'>HHH-9003</a>] -         Avoid allocating arrays in most methods of ComponentType
</li>
</ul>
    
<h2>        Patch
</h2>
<ul>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-4638'>HHH-4638</a>] -         Allow hibernate connect to Firebird database without set &quot;hibernate.dialect&quot; property
</li>
</ul>
    
<h2>        Deprecation
</h2>
<ul>
<li>[<a href='https://hibernate.atlassian.net/browse/HHH-8674'>HHH-8674</a>] -         Hibernate 4.1 documentation uses method buildSessionFactory() on Configuration object despite its deprecation.
</li>
</ul>