ObjectDB Release Log

Version 2.9.4

Added support of file-size and object-count queries (feature request #2968).
Fixed issue #2964 part 2 (posts 15-...) - refresh after flush can fail.

Version 2.9.3

Fixed unstable activation issues.
Fixed issue #2954 - using IS NULL (or == null) on parameters in queries.
Fixed automatic schema update on renaming or moving an enum type.
Fixed issue #2964 (critical) - concurrent update of large objects with version-check=false.

Version 2.9.2

Added support of the Jakarta Persistence package names (jakarta.persistence).
Note: Support of javax.persistence continues in this version, using separate jar files.
Use Java 8 or above with the javax variant and Java 17 or above with the jakarta variant.
Added Java 9 module support for the ObjectDB Jakarta variant.
Added support of using ObjectDB in Jakarta EE 10.x application servers.
Added support of using ObjectDB in Spring Framework (MVC) 6.x and Spring Boot 3.x.
JDO updated to API version 3.2.1 (API only, no new functionality).
Note: JDO is not expected to be included in ObjectDB 3.0. Applications should be updated to JPA.
Removed old tutorials from the development kit distribution.

Version 2.9.1

Added support of embedded path expressions to mappedBy fields (issue #2917)
Fixed the SectionClassifier retrieval bug (issue #2912).
Fixed log file location for some server log messages (issue #2914).

Version 2.9.0

Added a new Doctor.run(srcPath, dstPath) static method.
Added an option to exclude inherited @Id fields in embeddable classes.
Added support for manual starting of online backup threads (feature request #2855).
Added support for distinct mapped-by (inverse) fields.
Improved query plan evaluation.
Improved automatic schema evolution of enum fields.
Improved exception throwing from tool threads.
Improved the error message on exception during commit, reported in issue #2882.
Fixed A NullPointException when using EntityManagerFactory with different class loaders.
Fixed a missing call to @PostUpdate when object change is detached by JDOHelper.makeDirty.
Fixed a bug of classifying inherited inverse fields as dependent.
Fixed improper use of indexes on collections of embedded objects (issues #2858 and #2859).
Fixed a java.lang.ArithmeticException: / by zero error on query execution.
Fixed a bug in applying OrderBy annotation.
Fixed opening context menu in the Explorer.

Version 2.8.9

Added support of enhancing classes with Java 11 dynamic constants.
Added a warning if an expired activation is found in the configuration (issue #2817).
Fixed the error message when required enhancement is missing (issue #2828).
Fixed recording of large transactions over 2GB in size (issue #2834).
Fixed a bug in executing compound range queries using an index (issue #2853).
Fixed a bug in automatic conversion of embedded objects to collections.
Fixed a bug in leaving a snapshot.

Version 2.8.8

Added initial support of Record entities.
Implemented a new query method: containsAnyKey.
Improved field type error and internal error messages.
Improved the Doctor output.
Fixed a bug in using inner classes for query results.
Fixed an error due to to an unused type referencing a deleted type.
Fixed a primary key query issue.
Fixed a bug in comparing embedded objects in queries (issue #2750).
Fixed an error on closing an EntityManager with non-comitted flushed transaction (issue #2794).
Fixed an enum optimization regression (issue #2794).
Fixed a temporary files locking issue on Linux (issue #2794).

Version 2.8.7

Added an option to slow backup (see feature request #2681).
Added an option to view old type versions in the Explorer (-Dobjectdb.ui.debug=true)
Improved the Doctor (see issue #2691).
Improved performance following a large eager fetch (issue #2694).
Restricted waiting time on closing a database on a server to 2 seconds(see issue #2686).
Fixed a bug in the new option to slow backup in client-server mode (see feature request #2681).
Fixed Explorer issue after schema evolution (issue #2726).
Fixed field renaming schema upgrade of previous schema versions (issue #2713).

Version 2.8.6

Fixed an issue with viewing class Ids in the Explorer (see issue #2677).
Fixed a regression bug (in version 2.8.5) in using AS in JOIN (issue #2666).
Fixed a connection pool issue related to memory release (issue #2663).
Fixed an Enhancer issue in supporting Java 9 modules and packages (issue #2657).
Fixed a regression bug in handling missing obsolete entity classes (issue #2650).
Added logging for server connections (see issue #2645).
Changed how the server handles stop requests (see issue #2645).

Version 2.8.5

Fixed a bug in using AS in SELECT NEW (breaks some Spring Data JPA queries).
Fixed a bug in tracking changes to new collections after flush (issue #2640).
Fixed a StackOverflowError on no access permission to objectdb.conf (issue #2643).
Fixed a bug in managing pessimistic locks after using LockModeType.NONE.
Fixed a bug in recovery from an exception during inverse (mapped-by) retrieval.
Improved recovery from partial deletion of class hierarchy in the Explorer.

Version 2.8.4

Fixed a critical bug that may cause collisions between schema versions (issue #2621).
Fixed unsupported unwrap to throw _PersistenceException (a subclass of PersistenceException).
Fixed an Explorer bug in presenting composite IDs.
Fixed a bug in using date and time query parameters in the Explorer (issue #2587).
Fixed a bug in using local dates with BETWEEN in queries (issue #2583).
Fixed an "Activator requires Java 6 or above" error on some JDKs (issue #2604).
Improved the process of creating objects in the Explorer (feature request #2602).
Fixed a performance issue in viewing class instances in the Explorer (issue #2601).
Fixed an Explorer bug of viewing query results in tables (issue #2600).
Fixed a bug in using trailing '_' wildcard in LIKE queries (issue #2576).
Removed exceptions due to closing the database connection during index update (issue #2571).
Added support for a new query hint for setting a preferred variable processing order (issue #2379)

Version 2.8.3

Added support of Java 8 date and time types (issues #1495, #2564).
Added information in the Explorer on consumed database space (feature request #2540).
Fixed handling enum types that implement interfaces in the Explorer (Issue #2542).
Improved memory cleaning when entity objects with embeddable elements are detached.
Improved handling query results that include managed hollow objects.
Removed false alarms by the Doctor.
Fixed a deadlock (issue #2512) on closing EntityManager and its factory concurrently.
Solved a possible issue with closing the ODB-WeakRefPurger daemon thread.

Version 2.8.2

Added support of deleting classes in the Explorer.
Improved memory cleaning when entity objects with embeddable elements are detached.
Improved handling query results that include managed hollow objects.
Removed false alarms by the Doctor.
Fixed a deadlock (issue #2512) on closing EntityManager and its factory concurrently.
Solved a possible issue with closing the ODB-WeakRefPurger daemon thread.

Version 2.8.1

Improved query plan evaluation (including for selecting composite indexes).
Fixed new statistics collection for queries.
Fixed a bug in LEFT OUTER JOIN queries (issue #2438).

Version 2.8.0

Improved query plan evaluation and selection (issue #2379, issue #2 417).
Increased the number of combinations examined by the query planner (issue #2379).
Excludes old unused classes in the database from licence limits (issue #2412).
Added an option to select a query plan using a query hint (see issue #2379).
Added logging when the number of allowed entity classes is exceeded (feature request #2412).
Added logging to diagnose unexpected duplicate index entry (issue #2403).
Fixed a bad optimisation in query execution (issue #2432).
Fixed an activation issue with some Java versions.
Fixed an InternalException (issue #2153, see also issue #2027).
Fixed long compilation time of queries with many (>10) JOINs (issue #2423)
Fixed the new option in 2.7.6_01 to select a query plan using a query hint (see issue #2379).
Fixed a critical bug in index based query execution (issue #2414).
Fixed a bug in loading a TreeSet lazily (issue #2407).
Fixed an unexpected internal exception in query result cache (issue #2406).

Version 2.7.6

Added support of an option to disable broken reference cleaning in the Doctor (feature request #2341).
Added support of cascading delete using JDO (feature request #2329).
Added logging for "Failed to read from file" error (issue #2322).
Added an option for eager background purge of weak references (issue #2302).
Added support of filtering mapped-by (inverse) relationship results using a constraint.
Changed to-one mapped-by (inverse) relationship with multiple matching to always take the first.
Changed query optimisation to prefer set retrieval during query execution.
Improved eager fetch mechanism to avoid unnecessary repeated operations.
Improved performance of reflection mode (no enhancement) by minimising tracking backups.
Improved concurrency by using lock free Synchronization (issue #2327).
Fixed a regression optimistic lock exception bug (due to fix of issue #2280).
Fixed a regression bug on remove and persist of an object in the same transaction (issue #2027).
Fixed a bug in UPDATE queries that modify more than 10000 objects (issue #2355).
Fixed a NullPointerException (issue #2302 , post 43).

Version 2.7.5

Improved recovery from failure when recovery is enabled with no sync (issue #2293).
Added support of using JDO listeners with JPA EntityManager.
Added debug logging got persist cascading (issue #2299).
Fixed a bug in restricting server access to a range of IPs (issue #2292).
Fixed a bug in comparing array fields against parameters in queries (issue #2289).
Fixed a bug in retrieving new objects of other transactions after flush (issue #2280).
Fixed a bug in version 2.7.4 in automatic primary key setting.
Fixed a disabled delete for null values in the Explorer (issue #2249).
Fixed a ClassCastException in using Tuple.get on a criteria query path (issue #2200).

Version 2.7.4

Fixed a bug in persisting objects with same ids in a class hierarchy in one transaction.
Fixed a bug in using JDO Extent of a super class with shared primary key values in subclasses.
Added a warning if a JDO SingleFieldIdentity class is used as a primary key field type.

Version 2.7.3

Fixed a bug in query execution optimization (issue #2170).
Fixed cascading delete through unloaded (lazy) relationships.
Fixed a NullPointerException when using "objectdb.temp.page-file" (issue #2163)
Added logging and suspend exception for issue #2153.
Fixed a bug in using SIZE with <= on dates in queries.
Fixed a bug in schema evolution of indexes.
Fixed a new false alarm of the Doctor, since 2.7.2 in index checking.
Fixed a bug in activating a new composite index on new embedded objects.
Fixed a bug in queries with duplicate values in an IN constraint (issue #1107).

Version 2.7.2

Added initial support for Java 9.
Attempt to fix (currently a workaround) and log the nested section key bug (issue #2127).
Fixed a bug in queries of the form "SELECT o FROM ... WHERE o == :arg"
Fixed a bug in displaying inverse (mapped by) relations in the Explorer.
Fixed a bug in reusing database space after removing an index.
Improved error message on attempt to enhance a class in a jar file in place.
Fixed a ClassCastException in query selection of embedded object and array fields.
Fixed an InternalException on some JDO delete queries.
Fixed a bug in processing a new index definition to a new defined embeddable class.
Fixed a possible collision of using multiple servers with a shared temp directory.
Fixed an error message in processing an invalid index.
Fixed index definitions change exception.
Fixed reflection mode issues (issue #2086, issue #2087).
Fixed an Explorer bug in adding objects to collections (issue #2078).
Fixed a Doctor error message on mismatching index entries.
Improved using em.find with mismatching (but convertible) key type.
Added an option for possibly improved concurrent database file access.
Added automatic logging of query details on internal errors.
Added configuration path writing to log on database opening.

Version 2.7.1

Fixed a critical bug that may cause database corruption (issue #1977).
Improved error messages on entity operation exceptions.
Fixed a NullPointerException on cascading persist throw an unloaded collection (issue #2049).
Fixed the location of a temporary file for index update (issue #2050).
Fixed a bug in schema evolution of non entity class to entity class in multi level hierarchy.

Version 2.7.0

Extended maximum supported entity object size to nearly 2GB.
Added a temporary system property to disable "enhancement ... is old" checks.
Fixed a bug in handling remove and persist of the same object in one transaction (issue #2027).
Fixed objectdb.jar to include META-INF/MANIFEST.MF as the first entry (required by Apache Karaf).
Fixed a cache bug in repeating some sorts of LIKE queries with different parameters.
Fixed a NullPointerException bug in automatic building of new indexes.
Fixed a NullPointerException in running the Doctor when new indexes have to be built (issue #1959).
Fixed a schema evolution bug in handling hierarchy change.
Fixed setting JDO's "javax.jdo.option.IgnoreCache".
Fixed JDO exception on invoking currentTransaction on a closed PersistenceManager.
Fixed an "Enhancement ... is old" bug on overriding persistent properties with a different return type.
Fixed a bug in using java.lang.Enum as a field/property type (and not a specific enum type).
Fixed a critical "Enhancement ... is old" bug when using property access mode (making enhancement unusable).
Fixed an "Attempt to modify a primary key" bug when using property access mode.
Fixed a bug in allowing page sizes larger than 64KB (which are not supported by ObjectDB).
Fixed an issue of very slow online backup.

Version 2.6.9

Added support for integration with WebSphere / Liberty application server.
Fixed deleting large transaction temporary files (in the experimental large transactions feature).
Fixed empty log directory creation when logging is disabled.
Fixed a bug in using nested embedded objects.
Fixed a query cache InternalException.
Fixed JDO PersistenceManager's newObjectIdInstance to support classes with no ID class.
Fixed a NullPointerException due to unexpected null SharedCacheMode in PersistenceUnitInfo.
Fixed a bug in removing a modified flushed entity object.

Version 2.6.8

Added JPA XML validation schema files to Maven/JEE objectdb.jar.
Added automatic release of pessimistic locks on client-server connection failure.
Fixed an OptimisticLockException bug on commit after flushing a removed modified entity object.
Fixed a NullPointerExeption on new index building.
Fixed a NullPointerExeption on flush (issue #1840).
Fixed a bug in using temporary files in large transactions.
Reverts a change in 2.6.6_08 that may cause issue #1839.
Attempt to fix a bug in using temporary files in large transactions.

Version 2.6.7

Added an option to write javaagent enhanced classes to file (for diagnosis).
Extended temporary files support to update queries (issue #1658).
Improved performance of handling multi activations configuration.
Fixed a synchronization bug in using temporary files in large transactions.
Fixed a bug in using @TableGenerator / GenerationType.TABLE.
Fixed handling classes with no persistent fields in new automatic activation of indexes.
Fixed a regression bug due to changing references to weak in 2.6.4_04 (issue #1658).
Fixed a bug in enhancing an entity class with static reference to Log4j.
Fixed a bug in loading TreeSet and TreeMap fields.
Fixed Explorer to show error message on non existing referenced objects.
Fixed a bug in stopping an ObjectDB Server in SSL mode from another process (issue #1804).

Version 2.6.6

Added support of automatic activation of new indexes (issue #19).
Fixed a bug in multi variable queries (issue #1801).
Fixed an Explorer exception when a field in a summary view is not included in the tree/table view.
Fixed a bug in caching Criteria query programs with IN operator.
Fixed a bug in handling embedded objects in queries.
Fixed a bug in ordering query result by an expression that is used in IN operator.
Fixed a bug in handling pure date and time values.
Fixed a bug in handling some types of collection and map queries in version 2.6.5.

Version 2.6.5

Added optional (experimental) support of using clients with different object model versions.
Changed references to new flushed objects from ObjectDB to weak references.
Cancelled an exception on cascading removal of an already removed object.
Renamed internal Enhancer hidden methods to non property method names.
Fixed a bug in retrieving pure time values (java.sql.Time).
Fixed a bug in MEMBER OF queries on embedded objects.
Fixed a bug in querying indexed nested embedded objects.
Fixed a bug in querying enhanced embeddable classes.
Fixed server crash on exceeding maximum number of connections specified in configuration.
Fixed optimistic lock exception on removing of a flushed modified entity in the same transaction.
Fixed temporary file management for very large transactions (feature request #1658).
Fixed a bug in persisting dates (TemporalType.DATE) based on time close to clock change.
Fixed a bug in indexing java.sql.Date fields during time / time zone change.
Fixed a bug in detachment of embedded objects (if enabled).

Version 2.6.4

Added memory only database mode.
Added an option to cascade detachment to embedded objects.
Added an option to disable reuse of database page objects.
Improved release of query resources.
Improved memory management in multi flush transactions.
Extended detachment of embedded objects to collections.
Fixed large transaction temporary files implementation (feature request #1658).
Fixed a bug in handling large objects with long primary keys as query results (issue #1717).
Fixed detachment of embedded objects to collections.
Fixed database page objects reuse to release to be cleared on EntityManagerFactory close.
Fixed a bug in hierarchy schema upgrade.
Fixed a bug in schema upgrade that includes both class and field renaming.

Version 2.6.3

Added an option to disable some query execution optimizations.
Added an option to exclude persistence aware enhancement (feature request #1683).
Added an option to use temporary files for very large transactions (feature request #1658).
Fixed an online backup bug (no access during backup operation).
Fixed JOIN FETCH bugs.
Fixed a performance issue with mapped by fetch.
Fixed the ObjectDB Maven repository and Maven examples to work with TomEE.
Fixed handling merge of an entity with PK == 0 (issue #1667).

Version 2.6.2

Added support of entity classes with missing implemented interfaces in the Explorer.
Added method com.objectdb.Utilities.newTrackable(em, cls) for improved performance.
Added a temporary workaround for NullPointerException on query after flush (issue #1623).
Improved title of query result windows in the Explorer.
Changed the Enhancer to return non zero exist code on errors (issue #1635).
Fixed a NullPointerException on concurrent access of first object of an entity class.
Fixed bug in using EnumType.STRING based enum collection as a query parameter (issue #1639).
Fixed a synchronization bug (issue #1643).
Fixed a regression of build 2.6.1_03 in supporting interfaces in the Explorer.
Fixed a bug in updating a collection field after GC of the containing entity (issue #1620).
Fixed a bug in queries on map fields.
Fixed a bug in updating an embedded object after GC of the containing entity (issue #1620).
Fixed a bug incascading detach through unloaded inverse (mapped by) collection.

Version 2.6.1

Added an option to disable temporary file deletion.
Added support of using entity classes with missing dependent types.
Added support of composite indexes with components of different lengths.
Fixed a bug in reflection mode in detecting changes after flush (issue #1602).
Fixed a NullPointerException is merging objects of new types.
Fixed a bug in managing inverse (mapped by) collections and maps in reflection mode.

Version 2.6.0

Added support of JPA 2.1 persistence.xml and orm.xml formats.
Added implementation of equals to JPA Metamodel attributes.
Fixed ObjectDB OSGi bundle to support enhanced classes.
Fixed handling class loader switch (avoiding automatic database close and reopen).
Fixed a NullPointerException on cascading persistence through a mapped by collection (issue #1563).
Fixed a bug in using enhanced entity classes with is (boolean) persistent properties (issue #1561).
Fixed porting to Java 8 of database file withunexpected HashMap.Entry as a listed type.
Fixed return type of SUM queries on BigDecimal field (issue #1556).
Fixed a client activation issue when accessing JPA Metamodel before connecting to a server.
Fixed a NullPointerException during close (issue 1531).
Fixed refresh of a new managed entity object after flush.