ObjectDB Change Log Version 2.8.6_06 Improved performance following a large eager fetch (issue #2694 ). Version 2.8.6_05 Added an option to view old type versions in the Explorer (-Dobjectdb.ui.debug=true) Version 2.8.6_04 Version 2.8.6_03 Restricted waiting time on closing a database on a server to 2 seconds(see issue #2686 ). Version 2.8.6_02 Version 2.8.6_01 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 #265 7). 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 #229 3). 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 #228 0). 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 deletin g 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 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 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 . Version 2.5.7 Added Refresh toolbar button and accelerator key in the Explorer. Added support of retrieving database connection details. Fixed unstable activation in Mac OS. Fixed a bug in using FETCH JOIN in criteria queries. Fixed a bug in cascading remove when orphan removal is set. Fixed an IllegalAccessError exception when using abstract non public persistable types. Fixed the result type of a sum query on a single value. Version 2.5.6 Changed merge behavior (following this forum thread ). Fixed a TomEE - ObjectDB client-server integration issue (issue #1407 ). Fixed a ClassCastException on selecting an embedded ID field in queries. Fixed an exception (NullPointerException ) in update queries (since 2.5.5_12). Fixed a NullPointerException Fixed a memory leak (Negative snapshot user count) in UPDATE queries on uncommitted changes (issue #1407 ). Fixed a memory leak in reflection mode (when using non enhanced classes). Fixed a bug of unexpected change of primary key type in UPDATE queries. Fixed some bugs in converting old ObjectDB 1.x database files to ObjectDB 2.x. Fixed a bug in comparing String based enum to NULL in queries. Fixed an activation issue with hosteurope.de (issue #1413 ). Fixed "objectdb activation" query to work properly in client-server mode. Fixed enhancing class files that use INVOKE DYNAMIC. Fixed an error message in accessing a field of an unknown type in queries (issue #1417 ). Version 2.5.5 Added support of Java 8 (JDK 1.8), see issue #1369 . Added support for deleting archive log directory when the database is open (issue #1303 ). Changed the response to starting a database server that is already running (avoiding further attempts). Fixed a memory issue with using ObjectDB with JBoss. Fixed query execution issues with using composite indexes. Fixed a bug in using LIKE operator in some combinations of different wildcards. Fixed a bug in handling dates (TemporalType.DATE ) on some time zones. Fixed log archiving to affect only "odb*.log" files. Fixed an Explorer bug in displaying Integer embedded ID fields as Long . Version 2.5.4 Added empty implementation of new JPA 2.1 methods. Implemented new JPA 2.1 EntityManagerFactory methods: createEntityManager , unwrap . Improved retrieving persistent string fields by using "".intern() for empty strings. Fixed a bug in queries on composed embedded primary key (issue #1301 ). Version 2.5.3 Added support for casting from boolean to int in queries. Changed default value of <exclude-unlisted-classes /> . Fixed a critical Explorer bug that interferes with queries on enum fields. Fixed a multithreading conflict (missing synchronization) in the JPA metamodel API. Fixed implementation of casting (as ) in criteria queries. Version 2.5.2 Added automatic creation of the log directory if it does not exist. Added support of old Spring Framework versions (with JPA 1.0). Fixed "InternalException: InterruptedException" due to application interrupts in embedded mode. Fixed a class loading conflict with Log4j. Fixed very slow processing of a composite BETWEEN query. Fixed NullPointerException when using AND TRUE in WHERE clause (issue #201). Fixed an exception when accessing an object with a closed EntityManager . Fixed a bug in viewing content of a TreeMap in the Explorer. Version 2.5.1 Added support of editing enum values in the Explorer. Added logging of type registration . Added error message when using mapped by (inverse) collections and maps of invalid types. Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated the PDF manual. Fixed a possible deadlock on Schema Update during Multithreading activity (issue #1139 ). Fixed a bug in loading mapped (inverse) to-many relationship into an array field ([]) (issue #1131 ). Fixed a bug in loading mapped (inverse) to-many relationship in embedded objects (issue #1131 , #13). Fixed a bug in automatic url switching in master-slave replication. Fixed a bug in applying orphanRemoval=true by default on mapped by (inverse) relationships. Fixed a bug in using IN expression in criteria queries Fixed processing an IN(:param) expression Version 2.5.0 Added support of nested paths in JOIN FETCH. Added support of persisting collections and maps of user defined types. Added support of Google (Guava) collections. Added support of inheritance of ID fields. Added support of disabling detachment on rollback in JPA. Added support of using entity instead of a PK in find (retrieval by example). Added support of using list of literals in an query IN expression. Added the ability to disable hollow objects . Added TRACE level logging of query execution. Added a new temporary system property ("objectdb.temp.quick-file") to accelerate db opening and closing. Improved connecting and disconnecting performance when logging is disabled. Improved closing database time when recovery is disabled. Fixed hasSingleIdAttribute for partial primary key inheritance. Fixed a bug in JOIN FETCH. Fixed a bug in loading reference primary key field of an abstract type. Fixed JDO sequence names to be fully qualified names (issue #1074 ). Fixed accessing a package level JDO sequence using getSequence (issue #1074 ). Fixed false Doctor warnings when updating the schema using external classes. Fixed Doctor's index rebuilding to use NULL values for missing values of new fields. Fixed a bug in UPDATE queries. Fixed a bug in using the LIKE operator in queries with no wildcard characters. Fixed support of embedded objects comparison in queries. Fixed an ArrayIndexOutOfBoundsException in serializing entity objects. Version 2.4.7 Fixed bugs in cascading merge and refresh. Fixed an internal java.lang.ArrayStoreException bug (com.objectdb.o.InvToOneLoadRequest). Fixed a regression bug (starting 2.4.4_13) in handling embeddable types. Fixed a performance regression (since 2.4.4_01) in query result retrieval. Added INFO level logging for indicating server start and stop. Improved error message for creating a query with a closed EntityManager (issue #1032 ). Version 2.4.6 Fixed a regression problem of version 2.4.5 in running in GlassFish. Fixed a bug in retrieving primary key fields in queries (on index merging). Fixed a bug in using a collection field index in queries. Fixed query plan selection for queries with boolean indexed field. Fixed a NullPointerException on Doctor run that removes an empty index. Fixed Doctor false alert after changing field type . Fixed an "Unexpected database state" exception when the Doctor builds a new index. Fixed a bug in setting SSL client-server connection. Added support for checking activation. Added toString implementation to queries that returns the query string. Version 2.4.5 Added support of lazy loading of mapped by (inverse) singular relationships (issue #768 ). Added support for using ObjectDB with TomEE / OpenEJB . Improved loading of eager mapped by (inverse) relationships (issue #769 ). Improved performance of database file extending. Fixed a bug in ignoring global cascade persist in an ORM file. Fixed a NullPointerException during query execution (issue #978 ). Fixed a class loading issue during automatic class scanning. Fixed a Doctor deadlock . Fixed multithreading problems when using new types simultaneously (issue #950 ). Fixed a problem of EntityManager auto closing. Fixed ArrayIndexOutOfBounds on using a no arg function in criteria queries (issue #946 ). Fixed activation when there is no MAC address. Fixed an update query error message on an attempt to update a collection (issue #943 ). Fixed a NullPointerException during persistence field access. Fixed a NullPointerException in query execution. Version 2.4.4 Improved memory management when handling very large transactions (issue #935 ). Improved the Doctor to handle additional situations. Added support in retrieving metamodel without connection (feature request #896 ). Added support of disabling logging . Improved missing license notification feedback. Fixed a bug in filtering mapped by objects by type. Fixed a regression bug in using primary key fields in queries. Fixed a regression bug of duplicating new objects on merge. Fixed a Doctor bug that caused false alarms. Version 2.4.3 Added support for using ObjectDB with JBoss AS 7.1.1. Improved performance of merging managed entities. Fixed a deadlock . Changed license checks. Version 2.4.2 Fixed a bug in handling mapped super class with no primary key (issue #864 ). Fixed a bug in handling enum in the primary key (issue #852 ). Fixed an initialization of inverse (mapped by) fields by JOIN FETCH (issue #854 ). Fixed type checking of query parameters. Changed merge implementation (removed temporary object clearing). Fixed the Explorer to show null values in primitive fields (unset values in new fields) correctly. Fixed a bug in clearing embedded objects during merge. Added automatic cascading through embedded objects. Fixed a bug in clearing persistent properties of primitive types. Fixed a bug of returning managed hollow objects in query results. Fixed an error message for invalid DELETE query (issue #825 ). Version 2.4.1 Version 2.4.0 Added support of entity collections as query parameters. Added support of running ObjectDB within Eclipse 3.7 wrapper jar . Added support of sharing an identifier name for a variable and a parameter in the same query. Added support for using ObjectDB with GlassFish 3.1.2 . Added handling missing classes in agent enhancement (by catching exceptions). Added automatic restart for failed connections on unexpected network failure. Improved temporary file management including avoiding permission collision . Improved BIRT support (issue #659 ). Improved evaluation of query plans that use composite indexes . Improved processing of queries with a large number of variables (issue #607 ). Improved toString of criteria queries to use aliases (issue #12 7). Changed non loaded collections on detachment to null (rather thanempty collections ). Fixed a critical bug in handling a very large number of entity classes (issue #672 ). Fixed LockModeType.OPTIMISTIC (READ ) by handling it as OPTIMISTIC_FORCE_INCREMENT . Fixed a bug in optimistic locking on find by using LockModeType.WRITE . Fixed exception when a named query doesn't exist to IllegalArgumentException . Fixed undeploying Glassfish 3.1.1 web application (by catching unexpected exception). Fixed LEFT [OUTER] JOIN issues (including on mapped by collections). Fixed object duplication on cascading merge (issue #595 ). Fixed an InternalException in query execution (issue #739 ). Fixed a master server failure due to disconnecting a replicated slave server. Fixed NOT NULL handling for basic (non relationship) references. Fixed a bug in detecting orphan entities in reflection mode. Fixed a bug in listing inherited persistent fields (in the Metamodel API and in the Explorer). Fixed a bug in merging complex object graphs. Fixed a bug in not using LIKE's ESCAPE when an index is used. Fixed a bug in parsing time literals in queries. Fixed recovery from failure when the recovery file is empty (issue #695 ). Removed EntityManager conflict checks in NO DETACH mode . Fixed a bug in online backup of databases larger than 2GB. Fixed a bug in running queries between flush and commit. Fixed a deadlock (issue #450 ). Fixed another issue in implementing fake entity detachment (feature request #326 ). Fixed a bug in compilation of path expressions in queries. Fixed handling null values in JOIN and path expressions in queries. Fixed a possibly very slow query execution when using entity parameters. Fixed issues in navigation through detached objects . Version 2.3.7 Fixed a critical issue that may cause database corruption (issue #630 ). Initial attempt to enable navigation through lazy loading from detached objects (feature request #326 ). Improved toString of criteria queries to use aliases (issue #12 7). Fixed automatic variable naming in criteria queries (issue #640 ). Fixed a bug in handling mapped super classes. Fixed bugs in using casting in queries (including issue #642 and issue #646 ). Fixed bugs in processing JOIN queries (including issue #632 and issue #634 ). Fixed a bug in using JPQL operations (e.g. UPPER ) in DISTINCT results. Fixed an exception in handling user defined serializable classes in the Explorer (issue #647 ). Version 2.3.6 Improved performance of collection and map size evaluation in queries. Fixed a critical bug in page caching (issues #610 , #621 , #625 ). Fixed a bug in optimization of non ASCII string indexes. Fixed the new query HOUR function to return hours as 0 to 23 (using 24-hour clock). Fixed a regression bug in the default fetch policy. Fixed a new bug in retrieving byte[] (issue #624 ). Fixed a bug in LEFT OUTER JOIN. Fixed GROUP BY DATE(...) - merging AM and PM into the same date. Version 2.3.5 Added support of DATE(...) and TIME(...) methods in queries. Added new Explorer and Server exe (for Windows 7 and 64 bits). Fixed handling a Calendar parameter value in criteria queries. Fixed using type operator and literals in client server queries (issue #605 ). Fixed eager fetch issues. Fixed a bug in using type literals in queries. Fixed a bug in passing a new entity object with no id as a query argument. Fixed a bug in using TYPE in queries. Fixed a NullPointerException in query compilation (issue #599 ). Fixed an enhancement bug in reading special fields. Fixed map type parameters display in the Explorer schema window. Fixed merging a new entity object with application set primary key. Version 2.3.4 Added OSGi support. Added support of MEMBER OF for inverse (mapped by) collections. Changed logging of incomplete recovery records from WARNING to TRACE (issue #565 ). Changed main configuration elements from required to optional. Fixed the "Negative snapshot user count" bug (issue #556 ). Fixed a page cache purge deadlock (issue #559 ). Fixed handling ;drop in client-server connection url. Fixed performance issue (fetch optimization ) in range queries. Fixed cached result size evaluation to include query arguments (issue #578 ). Fixed a bug in using IS NULL in queries on new fields after schema change. Fixed an Explorer bug in using an entity class with ID class. Version 2.3.3 Improved compilation performance of OR queries with many elements. Fixed eager fetch of maps and nested embedded objects. Fixed a bug in removing a new flushed entity object before first commit (issue #562 ). Fixed a NullPointerException in accessing inverse (mapped by) collection fields with cascading persist after updating the database and before commit (issue #544 ). Fixed NullPointerException on accessing an inverse collection in an entity that has been garbage collected (issue #544 ). Added support of @Column(unique="true") and equivalent ORM XML (issue #550 ). Fixed @PrePersist on merge to be called after merging fields (issue #551 ). Fixed eager fetch of collections and maps of simple values (issue #552 ). Fixed a NullPointerException in enhancement of more than one class path root (issue #554 ). Fixed a NullPointerException on detachment of some objects. Fixed Linux "Name or service not known" error on server stop. Version 2.3.2 Fixed a bug in "p.id IN :ids" queries. Fixed a bug in handling NOT = queries (issue #536 ). Fixed ClassCastException and NullPointerException in using a composite index in queries (issue #531 ). Fixed Explorer bugs: editing embedded objects and using connection urls. Fixed a NullPointerException on using a collection in a detached objectissue #527 ). Fixed a bug of changing id type when an entity object is retrieved using find with a PK of a different type (e.g. Integer instead of Long ) and then updated. Fixed retrieval with pessimistic lock to bypass cache and to force refresh. Version 2.3.1 Added support for using ObjectDB with JBoss AS 7.0 . Sample databases (world.odb, points.odb) included in ObjectDB distribution. New default Explorer colors (apply with Tools > Options > Fonts > Reset All). New menu for accessing local databases (in $objectdb/db ) in the Explorer. Improved UnsupportedOperationException error message. Fixed a pessimistic lock timeout bug (issue #520 ). Fixed a ClassCastException in using a composite index in queries (issue #521 ). Fixed handling derived Id fields in composite PK embedded IDs. Fixed default ObjectDB home path ($objectdb ) in NetBeans RCP . Fixed a Doctor and Replication regression (Type session exceeds timeout). Removed Conflicting modifiers validation check and error message. Version 2.3.0 Added the ability to edit databases in the Explorer (issue #2 ). Added the ability to execute queries in the Explorer (issue #3 ). Other small Explorer improvements. Added support of IN operator Added support of ";drop" database url parameter. Adjusted the Enhancer to the new Java 7 class file format. Improved error message for invalid mapped by (inverse) fields (issue #473 ). Improved persisting byte[] by reducing required storage space. Removed a shutdown hook that leads to memory leak (issue #453 ). Completed missing documentation (e.g. UPDATE & DELETE queries). Fixed memory leak issues. Fixed server hang and deadlock issues. Fixed several NullPointerException bugs. Fixed the "Failed to generate dynamic type" exception. Fixed a bug in query plans that use an inherited index . Fixed bugs in queries on collections. Fixed evaluation of $temp in the configuration file. Version 2.2.9 Version 2.2.8 Fixed a critical bug in extensive removal operations of large objects. Improved the performance of navigation through an inverse (mapped by) field if the owner field is indexed. Fixed a LEFT OUTER JOIN bug . Fixed a bug in parsing queries with parenthesis followed by NOT . Fixed a bug in running online backup with no arguments . Added option for running the Doctor without activating disabled indexes. Fixed a Doctor bug in fixing old (< 2.0) database files. Fixed a temporary file creation problem . Fixed a bug in size evaluation of cached query single results. Fixed internal NullPointerException -s (issues #365 , #366 , #368 ). Fixed a pessimistic locking deadlock (issue #342 ). Version 2.2.7 Version 2.2.6 Fixed the "Attempt to reuse an existing primary key value" after flush bug. Fixed a bug in tracking changes to collections of new flushed entity objects. Fixed generated value (ID allocation) bug with flush and in EJB containers. Fixed a NullPointerException on getObjectsById. Fixed a server freeze (no response) issue. Fixed a NullPointerException in metamodel with embedded ID (issue #316 ). Fixed an error message for invalid query parameter (issue @320 ). Fixed pom.xml files in the Maven tutorials to use Java 1.5 / 1.6. Version 2.2.5 Added support of navigation through collections (as a JPQL extension). Added version display to the Server and Explorer About dialog boxes. Fixed an UPDATE/DELETE query bug in client-server mode. Fixed an ArrayIndexOutOfBoundsException in retrieval of large objects. Fixed Explorer display of user defined serializable objects. Fixed a bug in using NOT NULL in criteria queries . Fixed a bug in using strings in criteria queries. Fixed a bug in collection change tracking in a new entity object. Fixed merging entity objects of another EntityManager . Fixed a bug in concurrent EntityManagerFactory instantiation . Fixed a bug in comparison of collections to values in queries. Version 2.2.4 Added support of JPA UPDATE and DELETE queries (issue #12 ). Added support of pessimistic lock timeout (javax.persistence.lock.timeout ). Added implementation of the getParameters Added exception on pessimistic locking retrieval with no active transaction. Improved support of entity objects in criteria queries . Improved Explorer performance by disabling EAGER fetch. Fixed critical bugs in using flush. Fixed bugs in cascading merge. Fixed a multithreading deadlock bug . Fixed a bug in using JOIN FETCH with DISTINCT. Fixed Metamodel API's getTypeId method to support single ID field . Version 2.2.3 Added support of @ElementCollection (for setting eager fetch of non entity collections, such as List<String> ). Improved performance of eager fetch in queries. Added Maven build enhancement to the bundled examples. Fixed a schema evolution bug in renaming user types. Fixed a bug in handling schema evolution (regression of 2.2.0). Fixed a bug in queries on large objects . Fixed a bug in using persistent properties with incomplete enhancement. Version 2.2.2 Changed log format to include date and time . Changed class loader management. Fixed handling multiple order expressions in inverse (mapped by) fields. Fixed the behavior of CacheStoreMode setting in L2 shared cache. Fixed TreeSet and TreeMap element comparison bugs. Fixed an Explorer bug in opening tables for selected rows. Fixed areplication configuration error . Version 2.2.1 Version 2.2.0 Added full support of JPA 2 Criteria Queries API (issue #10 ) Added full support of JPA 2 Metamodel API (issue #9 ) Added non optional field validation (throwing an exception on null value). Improved ObjectDB Doctor to handle additional issues. Improved query execution planner. Improved cleanup and reusing space after index deletion. Changed default configuration (enabled recovery, disabled recording). Fixed a critical database structure bug (issue #187 ). Fixed a critical bug in schema evolution of modified ancestor classes. Fixed a bug in handling indexes in a new ancestor class. Fixed a query cache bug. Fixed several bugs in query processing and running. Fixed a query execution bug when index with null keys is used. Fixed a bug in tracking field changes when a new value is the default value. Fixed a bug in creation of unnecessary nonclosed files. Fixed a ClassLoader conflict when using GlassFish. Version 2.1.1 Fixed an Explorer bug in handling listeners and callbacks. Fixed a bug in using user/password url arguments multiple times. Fixed several bugs in query processing and running. Version 2.1.0 Version 2.0.5 Fixed Java Agent / Java EE / Spring enhancement bug. Fixed a bug in merging detached entity objects. Fixed unexpected NullPointerException in client server mode. Fixed an exception in AVG query on non numeric values (issue #107 ). Fixed a bug in handling JOIN queries with primary key fields. Version 2.0.4 Added support for JTA and Java EE Containers (issue #8 ). Fixed a bug in indexing entity objects. Fixed a bug in fixing broken references in ObjectDB Doctor. Fixed a bug in modifying enhanced detached embedded objects. Fixed a spring transformer (LoadTimeWeaver) problem. Fixed a class loader issue when using GWT/Jetty. Fixed a bug in using fields of embedded primary key in JPQL queries. Version 2.0.3 Added support for serialization of inverse (mapped by) collection fields. Fixed some activations issues. Version 2.0.2 Fixed a bug in queries on embedded objects in C/S mode. Fixed a bug in setting log directory path (missing URL decoding). Fixed a bug in automatic byte code enhancement in Java EE server. Fixed a bug in multi variable queries. Version 2.0.1 Fixed a bug in lazy loading of instances of non enhanced classes. Fixed a bug in using the Replayer with no updates to the database. Fixed an activation bug. Version 2.0.0 Improved processing of some sorts of queries. Added support for using ObjectDB with JPA 1 jar in the classpath. Changed server start avoiding new process creation. Added logging for class loading and method finding problems. Fixed a bug in the results of IS [NOT] NULL queries. Fixed a bug in ObjectDB Doctor. Fixed persistence.xml C/S connection property to "javax.persistence.jdbc.user". Fixed a bug in the new log based (recording) recovery from failure mechanism. Fixed a bug in finding an entity after a failed find followed by persist. Fixed a memory leakage in eager load of large object graphs. Fixed a synchronization bug in sequence value generation. Fixed some issues in query execution. Fixed ObjectDB Doctor to activate and rebuild also inactive (new) indexes. Improved performance of database insert/update/delete operations. Changed default configuration (for improved performance). Added support for running a server with no tray icon (using a -console flag). Changed EntityManager.find to return null when no object is found. Fixed a bug in closing database files. Fixed a bug in preserving order of @EmbeddedId fields. Fixed a NullPointerException during cache cleanup. Fixed a bug in database file converter (from ObjectDB 1.0 to 2.0). Fixed a bug in handling duplicate / missing JDO metadata. New error message when persisting a reference to a new (non managed) entity object. Fixed a bug in lazy loading of instances of non enhanced classes. Added Explorer support of ID / version / inverse (mapped by) fields. Fixed Explorer bug in closing database files. Fixed cascading through inverse (mapped by) fields. Fixed some bugs in automatic schema evolution. Fixed a Server/Explorer class loading bug (after schema change). Fixed a bug in the ObjectDB Doctor Tool.
