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Change reports for the latest versions of Ehcache are available here.
| Version | Date | Description |
|---|---|---|
| 2.4.3 | 2011-04 | Bug fixes |
| 2.4.2 | 2011-04 | Bug fixes |
| 2.4.1 | 2011-03-25 | Bug fixes |
| 2.4.0 | 2011-02-15 | Major release |
| 2.3.2 | 2011-02-15 | Bug fixes |
| 2.3.1 | ?? | Bug fixes |
| 2.3.0 | 2010-10-15 | Major release with new features |
| 2.2.1 | 2010-10-11 | Bug fixes |
| 2.2.0 | 2010-07-16 | Bug fixes |
| 2.1.0 | 2010-05-19 | Major release with new features |
| 2.1.0-beta | 2010-04-21 | Beta for 2.1.0 a major release with new features |
| 2.0.1 | 2010-04-05 | Bug fixes |
| 2.0.0 | 2010-3-4 | Major release with new features |
| 2.0.0-beta | 2010-1-29 | Major release with new features |
| 1.7.2 | 2010-1-11 | Maintenance and bug fixes |
| 1.7.1 | 2009-11-30 | Maintenance and enablement of modularisation |
| 1.7.0 | 2009-10-5 | This is a beta release of Ehcache 1.7. |
| 1.6.2 | 2009-8-23 | This is a maintenance release to Ehcache 1.6.0 |
| 1.6.1 | 2009-7-27 | This is a maintenance release to Ehcache 1.6.0. |
| 1.6.0 | 2009-6-17 | This release introduces a new high performance cache core, which is two orders of magnitude faster. |
| 1.6.0-rc1 | 2009-6-12 | This release introduces a new high performance cache core, which is two orders of magnitude faster. |
| 1.6.0-beta5 | 2009-5-10 | This release introduces new high perforamnce cache core, which is two orders of magnitude faster. |
| 1.6.0-beta4 | 2009-4-7 | This release introduces new high perforamnce cache core, which is two orders of magnitude faster. |
| 1.6.0-beta3 | 2009-1-28 | This release breaks JCache into its own ehcache-jcache module and removes all dependencies other than the JDK. |
| 1.6.0-beta2 | 2008-12-24 | The focus of this release is enabling multiple replication schemes in the same configuration. |
| 1.6.0-beta1 | 2008-10-19 | The 1.6 release is a cleanup release which sets the foundation for future development. It updates the required Java version to 1.5, removes consequently redundant libraries and removes long deprecated methods. It also fine tunes some of the newer API behaviours. |
| 1.5.0 | 2008-07-12 | 1.5.0 Maintenance release |
| 1.5.0-beta2 | 2008-06-7 | Second beta of 1.5.0 Maintenance release |
| 1.5.0-beta1 | 2008-05-13 | Maintenance release |
| 1.4.1 | 2008-02-21 | Maintenance release |
| 1.4.0 | 2008-1-31 | 1.4 release |
| 1.4.0-beta2 | 2008-01-01 | 1.4.0 beta2 release |
| 1.4.0-beta | 2007-08-26 | 1.4 beta release |
| 1.3.0 | 2007-06-11 | 1.3 release |
| 1.3.0-beta3 | 2007-05-27 | Beta 3 for 1.3 release |
| 1.3.0-beta2 | 2007-5-1 | Beta 2 for 1.3 release |
| 1.3-beta1 | 2007-3-9 | Beta for 1.3 release |
| 1.2.4 | 2006-12-31 | Final 1.2.4 release |
| 1.2.4RC | 2006-11-26 | Minor release |
| 1.2.3 | 2006-9-2 | Maintenance release |
| 1.2.2 | 2006-7-17 | Maintenance release to ehcache-1.2.1 |
| 1.2.1 | 2006-7-2 | ehcache-1.2.1 |
| 1.2.1RC | 2006-6-4 | ehcache-1.2.1RC |
| 1.2 | 2006-4-25 | ehcache-1.2. ehcache-1.2 represents the addition of many new features while remaining backward compatible with 1.1. |
| 1.2rc1 | 2006-4-17 | ehcache-1.2 release candidate 1. ehcache-1.2 represents the addition of many new features while remaining backward compatible with 1.1. |
| 1.2beta5 | 2006-3-26 | Covers beta1 - beta 5 releases. ehcache-1.2 represents the addition of many new features while remaining backward compatible with 1.1. |
| 1.1 | 2004-11-23 | Maintenance release |
| 1.0 | 2004-9-28 | Stable release |
| 0.9 | 2004-7-5 | Additional release |
| 0.8 | 2004-5-15 | Additional features |
| 0.7 | 2004-1-2 | Bug fix release |
| 0.6 | 2003-12-8 | Bug fix release |
| 0.5 | 2003-11-18 | Hibernate compatibility release |
| 0.4 | 2003-11-13 | First public release |
| Type | Changes | By |
|---|---|---|
| Update | NotSerializableException when Ehcache tries overflow data to disk in XA Mode Fixes EHC-853. | Ludovic Orban |
| Update | Timestamper.next() can loop a billion times or more Fixes EHC-853. | Alex Snaps |
| Update | Give access to attribute name within the Extractor classes in search Fixes EHC-846. | Tim Eck |
| Update | Pass properties when constructing attribute extractors instances Fixes EHC-848. | Tim Eck |
| Type | Changes | By |
|---|---|---|
| Fix | CompoundStore.putWithWriter doesn't follow contract regarding return value Fixes EHC-845. | Chris Dennis |
| Type | Changes | By |
|---|---|---|
| Fix | Disallow a cache from being configured for overflowToOffHeap and terracottaClustered Fixes EHC-840. | Chris Dennis |
| Fix | JMX interface needs to translate InvalidConfigurationException throw by SampledCacheMBean.setCoherent(true) to plain RuntimeException Fixes EHC-830. | Gary Keim |
| Fix | Create improved toString method on ResultImpl Fixes EHC-838. | Tim Eck |
| Type | Changes | By |
|---|---|---|
| Add | Search. Caches can now be indexed and searched by key, value or attribute extracted from values. This is a major new API and feature for Ehcache. | Tim Eck |
| Add | Transactions support rework. Introduced 'local' and 'xa' modes, renamed old 'xa' mode into 'xa_strict'. | Ludovic Orban |
| Fix | SelfPopulatingCache will always release the lock on failure during the CacheEntryFactory.createEntry Fixes EHC-773. | Alex Snaps |
| Add | Update slf4j to 1.6.1 | Hung Huynh |
| Add | Add new consistency modes - strong and eventual. Deprecated old coherent settings ("true", "false") for Terracotta distributed caches. | Abhishek Sanoujam |
| Add | Add rejoin feature for Terracotta distributed caches. | Abhishek Sanoujam |
| Add | Move nonstop functionality from a decorator to ehcache-core. | Abhishek Sanoujam |
| Add | Add explicit-locking API to Ehcache. | Abhishek Sanoujam |
| Type | Changes | By |
|---|---|---|
| Fix | Blocking cache can create several StripedReadWriteLockSync Fixes EHC-805. | Chris Dennis |
| Type | Changes | By |
|---|---|---|
| Add | Introduced ElementValueComparator to make element value comparison used in replace() and remove() atomic methods pluggable. | Ludovic Orban |
| Type | Changes | By |
|---|---|---|
| Add | Additional statistics that break out missNotFound into missInMemory, missOffHeap, and missOnDisk. | Gary Keim |
| Add | Extend Ehcache existing in-memory and on-disk concepts to include off-heap as an additional possible location. | Chris Dennis |
| Add | Add the ability for store implementations to return a store specific MBean implementation that is exposed in the same manner as the existing Ehcache MBeans. | Chris Dennis |
| Add | Restore support for the disk access stripes configuration property in the disk store implementation. Fixes EHC-778. | Chris Dennis |
| Fix | EHC-740. Pick up "Read timed out" in RMI UnmarshalException. | Greg Luck |
| Fix | Throw an InvalidConfigurationException when a cache is created from CacheConfiguration without specifying a name. | Greg Luck |
| Update | Add support for JMX registration of ManagedCacheManagerPeerProviders. Thanks to Eric Dalquist for this contribution. | Greg Luck |
| Fix | Fix MemoryEfficientByteArrayOutputStream to return a correctly sized byte array to prevent network/disk wastage in ehcache-server/disk stores respectively. Fixes EHC-754. | Chris Dennis |
| Add | Added timeout to cache.getWithLoader. Fixes EHC-764. | Ludovic Orban |
| Fix | Fix exception message to do with Element.getValue(). Thanks to Ken Dombeck for reporting this. Fixes EHC-763. | Greg Luck |
| Fix | Monitoring solutions (Ganglia, Advent Manage Engine, Hyperic) typically allow a JMX property to be polled and graphs produced, using percentages. Add basic percentages for cache statistics. Fixes EHC-538. | Greg Luck |
| Add | Added support for cacheDecorators in defaultCache. Fixes EHC-729. | Abhishek Sanoujam |
| Add | Added support for cacheDecorators replacing the original cache when decorated cache has same name as the cache. For use-cases like Hibernate where it helps to replace the original cache declared in the config with the decorated cache. This can be used by making the CacheDecoratorFactory return the decorated cache with same name as the cache. | Abhishek Sanoujam |
| Type | Changes | By |
|---|---|---|
| Fix | Ehcache evictor not clearing objects as expected | Alex Snaps |
| Type | Changes | By |
|---|---|---|
| Fix | Renamed TerracottaConfigConfiguration to TerracottaClientConfiguration. | Geert Bevin |
| Fix | Creating a new cache manager ready to talk to terracotta is way too verbose Fixes EHC-736. | Geert Bevin |
| Fix | The CacheWriter init method is only called when it was declared through config since that code triggers when the CacheManager inits the cache Fixes EHC-742. | Geert Bevin |
| Fix | Support getCurrentNode and waitUntilNodeJoins in Ehcache cluster API Fixes EHC-733. | Geert Bevin |
| Add | Added new attribute "storageStrategy" for Terracotta Clustered Caches. This attribute is optional with default value "classic". The other allowed value is "DCV2" and only available for enterprise users. storageStrategy=DCV2 provides far greater scale and throughput. | Abhishek Sanoujam |
| Fix | Cleaned up Configuration Generator, accessible using cacheManager.get[Active/Original]ConfigurationText method(s). Can be used independently giving greater control over output format - indentation, newlines, suppressing default values etc. Fixes EHC-713. | Abhishek Sanoujam |
| Fix | Better exception message when adding a decorated cache/already initialized cache to CacheManager | Abhishek Sanoujam |
| Add | Added new attribute "concurrency" for Terracotta Clustered Caches. Its a non-negative integer that can be used to specify the number of segments that will be used by the map underneath the Terracotta Store. Its optional and has default value of 0 - which means will use default values based on the internal Map being used underneath the store (based on storageStrategy). | Abhishek Sanoujam |
| Type | Changes | By |
|---|---|---|
| Fix | closing a chache the WriteBehindManager attached to the queue does not by default finish flushing Fixes EHC-701. | Geert Bevin |
| Fix | Properly register MBeans for Terracotta clustered caches when they're added programmatically as the first clustered caches for a cache manager. Fixes EHC-641. | Geert Bevin |
| Add | Cache decorators can now be configured through config using "cacheDecoratorFactory" tag inside the "cache" tag. | Abhishek Sanoujam |
| Update | Ehcache 2.1.0 JTA support with Atomikos requires Atomikos 3.6.5. Fixes EHC-693. | Fiona O'Shea |
| Update | A meaningful log message, rather than an NPE is emitted if you configure RMI replication without configuring a net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory in ehcache.xml. This is apparently a relatively common configuration error. Fixes EHC-621. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Change the internal store structures to be fully coherent. This allows for the addition of concurrent map like methods (e.g. putIfAbsent) and also for JTA caching in unclustered caches. Fixes EHC-450. | Chris Dennis |
| Update | Change the ehcache-core Hibernate dependency to the newly released 3.5.0-Final. Fixes EHC-621. | Chris Dennis |
| Fix | Change CacheLockProvider lock method to support reentrant acquires. Add a lock state query method, and update BlockingCache accordingly. Fixes EHC-633. | Chris Dennis |
| Change caches to have statistics disabled by default. Fixes EHC-673. | Chris Dennis | |
| Fix | Allow Elements in clustered caches to be serialized, and hence enable replication of clustered caches. Fixes EHC-674. | Chris Dennis |
| Add | Caches can now be configured to be copyOnRead and copyOnWrite, with user provided copy strategy or the default serialization one. Configuration on the Terracotta config is now deprecated... Fixes EHC-668. | Alex Snaps |
| Fix | XA transactional Caches now automatically set copyOnRead on terracotta clustered stores properly Fixes EHC-650. | Alex Snaps |
| Add | Actual copyOnRead and copyOnWrite implementation Fixes EHC-628. | Alex Snaps |
| Add | Added putIfAbsent(Element), replace(Element), replace(Element, Element) and removeElement(Element) methods to Cache Fixes EHC-368. | Chris Dennis, Alex Snaps |
| Add | Added addCacheIfAbsent method to CacheManager, implied removing races in managing Cache's and Ehcache's in the CacheManager's implementation. Fixes EHC-234. | Alex Snaps |
| Add | XA Transactional caches are now also supported with non clustered caches. | Alex Snaps |
| Fix | Fixed issue to support BTM and Atomikos TransactionManager's suspend/resume cycles | Alex Snaps |
| Fix | Fixed NPE when no DefaultCache is provided at CacheManager's instantiation Fixes EHC-687. | Alex Snaps |
| Fix | Updated to latest slf4j 1.5.11 Fixes EHC-686. | Alex Snaps |
| Type | Changes | By |
|---|---|---|
| Fix | RegisteredEventListeners.unregisterListener(CacheEventListener cacheEventListener) throws java.lang.UnsupportedOperationException Fixes EHC-653. | Geert Bevin |
| Fix | Clustered Ehcache Hibernate caches are not set to minimalPut=true by default Fixes EHC-647. | Chris Dennis |
| Fix | Interleaving txn not support in EhcacheXAResource when the TM is Atomiko Fixes EHC-658. | Ludovic Orban |
| Fix | Fix JTA version system Fixes EHC-657. | Alex Snaps |
| Fix | JTA prepared transaction for which keys are to be inserted (previously absent) aren't unlocked when rolled Fixes EHC-645. | Alex Snaps |
| Fix | Fix JTA Deadlock Fixes EHC-644. | Alex Snaps |
| Fix | EhcacheXAResourceImpl.equals is only based on Cache's name Fixes EHC-642. | Alex Snaps |
| Fix | Default constructor for CacheConfiguration was removed in 2.0. Put back. Fixes EHC-665. | Greg Luck |
| Fix | Enabled loading the Ehcache config file in EhCacheRegionFactory from an URL Fixes EHC-660. | Alex Snaps |
| Type | Changes | By |
|---|---|---|
| Fix | Changed Store.put() to return boolean instead of void. cache.put() can be more efficient by relying on this return value instead of doing a separate containsKey() check for each cache.put(). Fixes EHC-625. | Abhishek Sanoujam |
| Add | Added AbstractCacheWriter class for convenience. Fixes EHC-632. | Geert Bevin |
| Fix | Changed delete and deleteAll CacheWriter methods to take a newly introduced CacheEntry type that contains a key and possibly the element that belongs to it. | Geert Bevin |
| Add | Added support for cluster topology event listeners. | Geert Bevin |
| Add | Added support for cluster topology information retrieval to Cache. | Geert Bevin |
| Add | Added distributed cache events for clustered Terracotta caches through TerracottaCacheEventReplicationFactory and TerracottaCacheEventReplication. | Geert Bevin |
| Add | Added support for local and remote filtering for the cache event listeners. | Geert Bevin |
| Add | Implemented rate limiting support for write-behind. | Geert Bevin |
| Add | Made batch operation type ordering predictable, ie. writes always happen before deletes. | Geert Bevin |
| Add | Added statistics cache attribute. If set to false, statistics overhead is avoided giving a significant performance improvement in standalone ehcache. By default statistics are on. | Chris Dennis |
| Fix | Fixed performance regression which occurred in 1.7.0 when sampling statistics was added. For maximum performance statistics can now be turned off in config and during cache construction. Fixes EHC-419. | Chris Dennis |
| Fix | Changed meaning of maxElementsInMemory=0 for MemoryStore to be unlimited. This puts it in-line with DiskStore and ClusteredStore. This also means that a cache configuration defining no in-memory capacity limit gets a functioning but unlimited capacity cache. This is not expected to cause practical problems because in previous versions, when 0 meant 0, a warning was issued and performance was halved. Fixes EHC-610. | Chris Dennis |
| Add | Add necessary methods to make the Hibernate RegionFactory implementations forward compatible with the upcoming Hibernate 3.5 release. Fixes EHC-620. | Chris Dennis |
| Fix | Switch to using millisecond precision for access timestamps in unclustered Ehcache elements. Fixes EHC-622. | Chris Dennis |
| Fix | Modified DiskStore to be configurable to use multiple RandomAccessFile instances to read the data file. Reduced the scope of synchronization on reading from the DiskStore. Fixes EHC-537. | James Abley, Chris Dennis |
| Fix | Blocking now allows for concurrent reads on the same key (i.e. same striped lock). Fixes EHC-554. | Alex Snaps |
| Type | Changes | By |
|---|---|---|
| Add | Refactored Cache constructors to allow the use of a fluent interface instead of a series of constructor arguments. Existing constructors remain exactly the same for backward compatibility. | Geert Bevin |
| Add | Added support for CacheWriters with write-through and write-behind modes. | Geert Bevin |
| Add | Added support for fast bulk-loading with incoherent mode when clustered with Terracotta. Turning on incoherent mode with cache.setCoherent(false) improves performance for bulk loading. | Abhishek Sanoujam |
| Add | New attribute for Terracotta clustered-caches, synchronousWrites=true|false -- support for Terracotta's Synchronous Write locking level in cache. Synchronous Write locking level gives greater guarantees, but comes at high cost in terms of scale/latency. | Abhishek Sanoujam |
| Add | Added XA transaction, using JTA API. Configured through the transactionalMode attribute of a cache in your configuration xml file. Currently only supported on caches clustered using Terracotta's serialized value mode. | Alex Snaps |
| Fix | Implemented correct cluster wide locking for Terracotta clustered Ehcache Hibernate caches. Fixes EHC-573. | Chris Dennis |
| Add | Added dynamic configuration support for Terracotta clustered and unclustered Ehcache instances. TTI, TTL, and maximum in-memory and on-disk capacities can be modified at runtime by accessing and mutating the Cache object's CacheConfiguration. Fixes EHC-570. | Chris Dennis |
| Add | Added Hibernate 3.3+ API cache region factories supporting both singleton and non-singleton cache managers. The new API provides for concurrency improvements that were not possible with the pre-3.3 provider API. Fixes EHC-560. | Chris Dennis |
| Add | Add support for all tim-distributed-cache configuration options to the terracotta ehcache configuration element. Fixes EHC-584. | Chris Dennis |
| Fix | Rewrite of MemoryStore to prevent bugs whereby the parallel key data structure became inconsistent with the underlying map, and therefore caused errors during capacity eviction. Fixes EHC-569. | Chris Dennis |
| Fix | Disabled caches now return null on get rather than returning a potential stale value. This is important now that caches can be disabled at runtime when they may not be empty. Fixes EHC-576. | Chris Dennis |
| Add | Added "copyOnRead" setting for terracotta clustered caches. At a high level this setting will return distinct value objects upon every get() to a cache. The main driver for this feature is to support caches that are accessed by disparate OSGi bundles | Tim Eck |
| Type | Changes | By |
|---|---|---|
| Fix | Replaced single threaded use of StringBuffer with StringBuilder. Switched to using valueOf methods for creative primitive wrapper instances instead of new'ing them. Fixes EHC-435. | Chris Dennis |
| Fix | Added a non-transient cache name field to the Statistics class so that cache names persist after passing through serialization. Fixes EHC-513. | Chris Dennis |
| Fix | Added the Exception causing the issue to the CacheException. The message now includes the key, rather than null. Fixes EHC-518. | Alex Snaps |
| Fix | Made "stopped" variable volatile in MulticastKeepaliveHeartbeatSender/Receiver to make it thread-safe Fixes EHC-549. | Abhishek Sanoujam |
| Fix | Make ExecutorService's use custom ThreadFactory so that pool threads have meaningful names. Fixes EHC-561. | Abhishek Sanoujam |
| Fix | Use UUID rather than RMI's UID which does not work in GAE. Fixes EHC-434. | Greg Luck |
| Add | Added CacheManager.clearAllStartingWith(String): void that clears all Caches associated with the cache manager, if the cache name matches the prefix profided Fixes EHC-242. | Alex Snaps |
| Type | Changes | By |
|---|---|---|
| Update | Enable cache loaders to work with Google App Engine. | Greg Luck |
| Fix | Fixed Cache.toString() bug introduced in 1.7.0. Fixes EHC-???. | Greg Luck |
| Fix | Fixed ttl bug introduced in 1.7.0. TTL or TTI values > Integer.MAX_VALUE were incorrectly downcast causing negative values. Most commonly, setting a TTI or TTL of Long.MAX_VALUE caused an exception to be thrown. Fixes EHC-342. | Alex Miller |
| Fix | Fixed memory visiblity issues with fields in MemoryStore. Made maximumSize and useKeySample final as they never change. Made status and policy volatile as they change but weren't guaranteeing visibility. Fixes EHC-449. | Alex Miller |
| Fix | Fixed a race that can cause an NPE when evicting with key samples during put. This can happen if there is a concurrent clear() that wipes the map as the keyArray is not updated under the same lock. This happens in tests a lot but is probably less common in actual user code. Fixes EHC-427. | Alex Miller |
| Fix | Fixed a number of latent visibility bugs in the Cache class. Fixes EHC-443. | Chris Dennis |
| Fix | Fixed a number of latent visibility bugs in the Element class. Notably updates to the hitCount field are now coherent across multiple threads through the use of an AtomicLongFieldUpdater. Fixes EHC-445. | Chris Dennis |
| Fix | Fixed bug to avoid any limit on the number of caches that can be configured for replication. Earlier there was a limit on the number of caches that can be configured for replication as the heartbeat size was exceeding the MTU when the number of caches were high and/or the caches had long names. Fixed to break up into multiple payloads in case the heartbeat size exceeds the MTU. Fixes EHC-424. | Abhishek Sanoujam |
| Fix | Fixed MemoryStore to use sufficient initial capacity for the internal ConcurrentHashMap so that it can accommodate the maximumSize of the store. Fixes EHC-446. | Abhishek Sanoujam |
| Fix | Allow Terracotta clustered caches to be added programmatically even when the CacheManager was created initially without any Terracotta clustered caches. e.g. Adding a terracotta clustered cache programmatically to the default singleton CacheManager when there is no ehcache.xml present in the classpath. Fixes EHC-415. | Abhishek Sanoujam |
| Fix | cache.isKeyInCache(null) causes an NPE. Fixed. Fixes EHC-462. | Greg Luck |
| Fix | Fixed an issue with disk store when an abrupt JVM termination leaves a persistent disk store in a corrupt state. This problem was introduced in 1.6. Fixes EHC-437. | Greg Luck |
| Update | In Ehcache 1.6 the web package was broken out into the ehcache-web module. However the ShutdownListener is useful even if you are not using web caching - you use it to shutdown a CacheManager in a web app, when the servlet container shuts down. For that reason it should be in core. Putting it back. Fixes EHC-544. | Greg Luck |
| Fix | Added null check to avoid NPE. Fixes EHC-533. | Abhishek Sanoujam |
| Fix | Fix for making ehcache work in Google App Engine runtime. JMX classes won't be used when monitoring="off" Fixes EHC-556. | Abhishek Sanoujam |
| Type | Changes | By |
|---|---|---|
| Update | ehcache now becomes a composite modules which includes ehcache-core, ehcache-terracotta and may include other commonly used modules in the future like ehcache-jcache. | Greg Luck |
| Add | ehcache-terracotta module, which provides seamless integration to the Terracotta Server for Terracotta based clustering. | Terracotta Team |
| Reduce iterator crossover from 100 to 5 to solve suspected CPU load issue in small caches. Fixes EHC-395. | Terracotta Team | |
| Take puts into account for recent use in the eviction algorithms. Fixes an algorithm regression from 1.5. Fixes EHC-396. | Greg Luck | |
| Statistics reporting incorrectly in Hibernate in 1.6.2. Fixes EHC-357. | Terracotta Team | |
| Update | Replaced Mutex with higher concurrency strategy (ReadWriteLock based) for both BlockingCache and SelfPopulatingCache | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Remove | Remove AsynchronousCommandExecutor. This is not used by anyone that I know of and is obsolete as j.u.c. provides a similar mechanism. | Greg Luck |
| Fix | 1.6.1 cannot read older versions' persistent stores. Thanks to Matt Passell for the patch. Fixes 2840648. | Greg Luck |
| Fix | Fix retry serialize not working. Thanks to Vitaliy Garnashevich for the patch. Fixes 2831089. | Greg Luck |
| Fix | Fix statistics counters. Change them to AtomicLong as they now need to be thread-safe to be accurate. Fixes 2831182. | Greg Luck |
| Fix | Fix to 1.6 where clearOnFlush may now be false and were getting double notification of a remove or expiry if it happened after a flush. Thanks to both Kevin Conaway and Jonathan Barbero. Fixes 2831486. | Greg Luck |
| Update | Always close open files. Thanks to Vitaliy Garnashevich for the patch. Fixes 2831089. | Greg Luck |
| Fix | Iterating through ALL_CACHE_MANAGERS sometimes causes ArrayOutOfBoundsException. Bug introduced in 1.6. Fixed. Thanks to Chris Hyzer for reporting. Fixes 2835670. | Greg Luck |
| Update | Current implementation stops after at least one loader loaded at least one Element. This patch continues to poll other loaders if more keys left to load. Thanks to Vitaliy Garnashevich for the patch. Fixes 2830920. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Fixed ConcurrentModificationException when using DiskStore. This issue would log an exception and those elements waiting to be spooled would be discarded. The DiskStore and cache would continue to run unaffected. 1.6 issue. | Greg Luck |
| Fix | Fixed regression in 1.6.0. When an Element is not Serializable, but it's key is, then replications via invalidate should still work as only the key needs to be Serializable. 1.6 issue. | Greg Luck |
| Update | Clarified and made consistent removeQuiet and getQuiet. Both do not update statistics nor call listeners. | Greg Luck |
| Update | Allow the network interface to be specified on multi-homed machines for MulticastRMICacheManagerPeerProvider. This can now be done by specifying hostName=<hostname or IP of network interface> in the properties. The default interface is used if this is not specified as it has been in past versions. | Greg Luck |
| Fix | Improved incrementer in MemoryStore to avoid rare overwrites in the key sampling. Thanks to Michael Maraist for this fix. 1.6 issue. Fixes 2823211. | Greg Luck |
| Fix | Improve performance of memory store eviction. Fixes 2823281. | Greg Luck |
| Add | Delete directories that were created with auto_created which are meant for one time only use. | Greg Luck |
| Fix | Fix consistency problem where, with very fast updates to a Cache, gets were returning old versions. Thanks to Marcin Sciesinski for a very clear test case which showed the issue. Fixes 2824181. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Added compatibility for Google App Engine. To get started read http://ehcache.sourceforge.net/documentation/googleappengine.html for more details. | Greg Luck |
| Update | Removed slf4j, which was causing ClassNotFoundException for some users. You can still log via SL4J using the SLF4JBridgeHandler. See http://www.slf4j.org/legacy.html See the http://ehcache.sourceforge.net/documentation/logging.html for more details. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Preserve \ and $ when in ehcache.xml. | Greg Luck |
| Fix | Fix to an issue introduced in 1.6.0-beta5. It was possible for the probabilistic eviction algorithm to return null, which could cause a slow memory leak. Fixed. If this happens on an eviction we do a further selection via iteration which is guaranteed not to return null. Fixes 2791732. | Greg Luck |
| Fix | Fix Bug in RMIAsynchronousCacheReplicator.clone introduced in the 1.6 beta series. Fixes 2804387. | Greg Luck |
| Fix | UpdatingSelfPopulatingCache had not been converted to work with non-Serializable objects. Fixed. Fixes 2790350. | Greg Luck |
| Fix | Fixed rare ConcurrentModificationException when calling cache.flush() to persist to the disk store during cache operation. cache.flush() is now asynchronous as a result. Fixes 2008055. | Greg Luck |
| Add | added clearOnFlush cache parameter. It determines whether the MemoryStore should be cleared when flush() is called on the cache. By default, the MemoryStore is cleared. Useful is you want to back up a cache to the file system without clearing the MemoryStore. Thanks to Matt Passell for the patch. | Greg Luck |
| Update | / used to be an illegal character in ehcache cache names. However JBoss 5 uses / in its JPA cache names. / is now a legal character so as to interoperate with JBoss 5. | Greg Luck |
| Update | Brought back the LruMemoryStore from ehcache-1.5 and prior. This can be switched in for LRU eviction algorithm cache using set java -Dnet.sf.ehcache.use.classic.lru=true By default the new, high performance MemoryStore is used for all eviction algorithms. | Greg Luck |
| Update | Added slf4j, replacing java.util.logging. I succumbed to the logic that a library should use an abstract logging interface. This _may_ be replaced by configurable logging in ehcache.xml, which will then remove the dependency on sl4j while still permitting its and other logging frameworks use. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Make MemoryStore eviction policies injectable. | Greg Luck |
| Fix | Fix NPE on cache operations during cache.dispose(); Fixes 2740073. | Greg Luck |
| Fix | Fix DiskStore recovery after dirty shutdown bug introduced in beta4. Fixes 2750578. | Greg Luck |
| Fix | Fix MemoryStore concurrency issue introduced in beta4. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Update | Remove many uses of synchronize and replace with new concurrency techniques available in Java 5. A concurrent test with 70 threads doing a realistic mix of operations gets are 92.5 times faster, puts are 30 times faster, removes are 48 times faster, removeAlls are 80 times faster, and keySet is 30 times faster. | Greg Luck |
| Add | Add replicatePutsViaCopy to the RMI replicator. This determines whether the new elements are copied to other caches (true), or whether a remove message is sent. Defaults to true. A replicateUpdatesViaCopy property was already there. With these two properties, fine-grained control is available to ensure distributed cache coherency is maintained. Fixes 2684466. | Greg Luck |
| Update | Don't automatically delete the DiskStore index on startup. Fixes 2003322. | Greg Luck |
| Fix | Fix documentation: missing parentheses from samples.html. Fixes 2540579. | Greg Luck |
| Fix | The isSerializable() method on Element was too narrowly defined. Adjusted to allow Elements with null values to be Serialized. This change affects DiskStore and replication. Null objects of any class will serialize. Also recorded as 2153609. Fixes 2026586. | Greg Luck |
| Fix | Made the synchronous RMI replicator log exceptions as SEVERE rather than throwing them, to make this consistent with the asynchronous replicator. The change means that you cannot detect that replication has not occured to a given peer. Given that we are not transactional, this probably does not matter. Fixes 2018964. | Greg Luck |
| Fix | Notifications happening on removeQuiet when they should not. Fixes 2725134. | Greg Luck |
| Fix | Extra logging around RMICachePeer. Add the cacheName to the FINE log output. Fixes 2492568. | Greg Luck |
| Fix | Added support for UTF8 file encoding of ehcache.xml. This makes it possible to specify cache names in non Western languages. Fixes 2584798. | Greg Luck |
| Fix | Updated provided scope dependency of Hibernate to 3.2.6GA to pick up a signature change in CacheException to Throwable. Fixes 2035287. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Update | Remove all of JSR107 JCACHE into its own module called ehcache-jcache, which will have its own release cycle. The jsr107cache dependency is thus no longer required. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Update | Allow multiple replication schemes to be used within the same CacheManager. i.e. use JMS for some caches and RMI for others. | Greg Luck |
| Add | Add a reference to Ehcache from CacheStatistics. Request 2128129 | Greg Luck |
| Add | Add FINE level LOG statement for Hibernate EhCache provider puts. This enables puts to be debugged with LOG statement. Request 2061030. | Greg Luck |
| Update | Removed cacheManager.getCachePeerProvider() in favour of cacheManager.getCacheManagerPeerProvider("scheme") where scheme is the replication scheme. Each replicator type can then call its own scheme provider, allowing multiple replication schemes to be used within the same CacheManager. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Remove | Removed commons-collections. The LRUHashMap was only being used by early versions of Terracotta integration and is not longer required to support Terracotta. | Greg Luck |
| Remove | Removed dependency on backport concurrent. java.util.concurrency is now used. Fixes 1987750. | Greg Luck |
| Remove | Removed dependency on commons-logging. Ehcache now uses java.util.logging at the request of many users. | Greg Luck |
| Update | Java 1.5 is now the minimum version for ehcache 1.6. Java 1.4 will continue to be supported on the ehcache 1.5 branch. Ehcache can reduce its dependency list for the core and therefore occupy a smaller footprint in new applications. | Greg Luck |
| Update | Add the ability for the MBean classes to be used in remote JMX clients, in addition to the current mechanism which uses standard JDK types. The ehcache classpath should be added to the client for this to work. e.g. jconsole -J-Djava.class.path=ehcache.jar | Greg Luck |
| Update | Due to requests for more sophisticated features and end user experience with the CacheLoader interface the following changes have been made: - A Cache may now have a list of CacheLoaders. If the first loader returns null, the next in the list is attempted until a non-null result occurs or the chain of loaders ends. - If a loader does not load, no element is put in the cache, rather than an element with a null value. This is more consistent with the rest of the API anyway and has been requested by users. - Loaders now have a maxLoadTimeMillis property which sets the maximum amount of time for the loader to wait for the load. - To support sophisticated loaders like the JMSCacheLoader, the CacheLoader interface adds lifecycle methods, so that it can be bound into a cache's lifecyle. Also there is a new factory method for loaders to bring them into line with extensions such that a back-reference to the owning Cache is injected at configuration time. The upshot of these changes is that implementers of CacheLoader will need to update their implementations for these changes. The setter and getter for CacheLoader has been removed because it now a list, not a scalar. New registerCacheLoader and unregisterCacheLoader methods have been added for programmatic configuration. The getCacheLoader method has been removed. | Greg Luck |
| Remove | Cache configuration individual methods have been deprecated for several years. In this version, the deprecated methods are removed. Use cache.getCacheConfiguration() to get the configuration object and then get individual properties. | Greg Luck |
| Remove | Cache statistics individual methods have been deprecated for several years. In this version, the deprecated methods are removed. Use cache.getStatistics() to get the Statistics object and then get individual statistics. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Fix loading of net.sf.ehcache.hibernate.EhCacheProvider from multiple class loaders. The insistence that a leading slash be at the front of the "net.sf.ehcache.configurationResourceName" property has been removed. If this fix causes anyone an issue, add the "/" to the front of your path. Fixes 1977481. | Greg Luck |
| Fix | Updated the BlockingCache.get() JavaDoc to clarify the contract when a RuntimeException is thrown. Fixes 1990091. | Greg Luck |
| Fix | Added a more meaningful LOG message when a null element is encountered from a replication. The only reason that an element can be null is because a SoftRefernence has been reclaimed by the JVM. The log message recommends either increasing heap or setting -Xms to be the same as -Xmx as the Sun JDK will reclaim SoftReferences in preference to increasing heap. Fixes 2002319. | Greg Luck |
| Update | The remote debugger has had many improvements. It is now packaged in its own tarball available from the downloads page, and also continues to be published as a maven module. It is not in the core tarball so that more focus can be given to it. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Fixes to changes made in 1.5.0-beta1: token replacement in ehcache.xml parsing and Cache.get() not searching the DiskStore. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Added JGroups Implementation. Thanks to Pierre Monestie for the patch(es) for this. Though new to the core distribution JGroups replication has been in production use in a large cluster for the last 10 months. Applied through patches 1730405 and 1912931. Fixes 1730405. | Greg Luck |
| Update | CachingFilter changed to use BufferedOutputStream rather than OutputStream. This is a performance improvement. Thanks to Vitaly Baranovsky for the patch. Fixes 1812267. | Greg Luck |
| Update | Removed setThreadName usage to increase performance. Fixes 1748591. | Greg Luck |
| Add | JCache interface improvement. if we want preload for this cache, and we probably don't know all the keys at the system startup time. We may want to have new interface: loadAll() This will not be added to ehcache until it gets added to the JCACHE spec. Fixes 1795131. | Greg Luck |
| Update | Clarified JavaDoc and behaviour so that Cache.getQuiet does not update Element statistics but also cache statistics. Fixes 1795131. | Greg Luck |
| Update | Enhanced behaviour of diskPersistent so that it will work for MemoryStore only caches. On shutdown the memory store will be written to disk and on startup loaded up into memory. But DiskStore itself will not be used during cache operation. Fixes 1909427. | Greg Luck |
| Update | The diskStore element in ehcache.xml is now optional. If all caches use only MemoryStores, then there is no need to worry about configuring diskStore. This will simplify configurations particularly where multiple CacheManagers are being used. If one or more caches requires a DiskStore, and none is configured, java.io.tmpdir will be used and a warning message will be logged to encourage explicity configuration of the diskStore path. Thanks to Robert Watkins for suggesting this one. Fixes 1728061. | Greg Luck |
| Add | By default RMI will assign a random listener port to a new Remote object which prevents its operation through firewalls. Added a new property remoteListenerPort to RMICacheManagerPeerListenerFactory to enable it to be specified. Fixes 1887683. | Greg Luck |
| Add | Made ManagementService accessible from IoC containers by providing a constructor. Fixes 1958670. | Greg Luck |
| Add | Added a new system property expansion token "ehcache.disk.store.dir" to DiskStore configuration which can be used to specify the DiskStore directory on the command line or in an environment variable. e.g. java -Dehcache.disk.store.dir=/u01/myapp/diskdir ... Thanks to Brian Chan and others for suggesting this one. Fixes 1898239. | Greg Luck |
| Add | Add the ability to specify system property tokens using ${tokenname} in ehcache.xml which are then replaced when the configuration is loaded. Fixes 1743082. | Greg Luck |
| Update | Updated the remote debugger with enhanced reporting and better documentation (See Logging page in the documentation). The new version prints a list of caches with replication configured, prints notifications as they happen, and periodically prints the cache name, size and total events received. Fixes 1912953. | Greg Luck |
| Fix | SimplePageCachingFilter returns same content for GET and HEAD. This one is an edge case that can happen. Thanks to Vitaly Baranovsky for the patch. Fixes 812270. | Greg Luck |
| Fix | Change CachingFilter to use setHeader rather than addHeader which was duplicating some headers. Fixes 1890915. | Greg Luck |
| Fix | Updated the JavaDoc to clarify the meaning of the constant SHORT_DELAY. Fixes 1936731. | Greg Luck |
| Fix | Fixed inefficient shutdown of cache when the cache is not diskPersistent. Fixes 1888993. | Greg Luck |
| Fix | Corrected ehcache.xsd so that minOccurs of cache can be 0. This makes ehcache-default.xml legal. Thanks to Andreas Sahlbach for reporting this. Fixes 1938744. | Greg Luck |
| Fix | Fixed Cache destroy exception where Hibernate and Spring are both shutting down during undeploying application. Fixes 1901094. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | ehcache-failsafe.xml was not being included in the maven package. Moved it to resources so that now it is. Fixes 1895147. | Greg Luck |
| Fix | JCache.getAll wraps values in Element. One place was missed in the fix for this in 1.4.0. Now all correct. Fixes 1831823. | Greg Luck |
| Fix | Fixed error in Cache.remove/Ehcache.remove JavaDoc Fixes 1887638. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Update backport-concurrent version to 3.1. This version is available for all versions of Java including 6. Fixes 1819841. | Greg Luck |
| Fix | Tuned a few unit tests use of Thread.sleep due to the Windows timing service of inaccurate aperture. Some tests that used an added 10ms to allow for Windows now allow for 20ms, based on research published in this bug report. Fixes 1880042. | Greg Luck |
| Fix | Removed one last thread renaming method. The others were removed in 1831446. Thanks to Diogo Quintela for pointing this out. Fixes 1880042. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | NPE in MulticastKeepaliveHeartbeatReceiver when accessing processingThreadPool during startup. Fixes 1819841. | Greg Luck |
| Fix | RMIAsynchronousCacheReplicator flushReplicationQueue change to speed it up and remove pausing. Thanks to Kyle Sampson for this one. Fixes 1816084. | Greg Luck |
| Fix | RegisteredEventListeners is not thread-safe where listeners are being added and removed during operation. Fixed. Thanks to Geoffrey Arnold for pointing this out. Also removed final from class. Fixes 1811875. | Greg Luck |
| Fix | CacheStatistics causes a NPE if used for fresh caches. Fixed. Fixes 1828351. | Greg Luck |
| Fix | Dropped thread renaming in SelfPopulating cache. A debug feature that has probably outlived its usefulness. Fixes 1831446. | Greg Luck |
| Fix | cache.getAllWithLoader should use a loadAll method for any keys not present in the cache rather than loading individually. This is a performance optimisation. Fixed. Fixes 1831817. | Greg Luck |
| Fix | Division by zero in RMIBootstrapCacheLoader.java where elements are non-null but empty, which causes bootstrap to fail, although gracefully. Fixed. Fixes 1846461. | Greg Luck |
| Fix | Style issue. Abuse of Exceptions. Fixed. Fixes 1831755. | Greg Luck |
| Fix | JCache.getAll wraps values in Element. Fixed. Fixes 1831823. | Greg Luck |
| Fix | Replication Thread of Default Cache not disposed. Fixed. Fixes 1802513. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Add CacheLoaders to ehcache configuration and core classes. | Greg Luck |
| Add | Add CacheExceptionHandlers. The enable an exception handler to be registered with a cache so that it is called on exception rather than the exception being thrown. | Greg Luck |
| Add | Add CacheExtensions. This is a generic facility which holds a reference to a cache and is bound to the cache lifecycle, making possible a wide variety of extensions to behaviour. | Greg Luck |
| Update | Add a version number to the ehcache jar manifest as is the Apache convention. Fixes 1737269. | Greg Luck |
| Update | Include all required libraries in the Sourceforge tarball download. Fixes 1752251. | Greg Luck |
| Update | Updated FAQ and Dependency chapters in the documentation and the Release Notes to point out that backport-concurrent for Java 5 is not compatible with Java 6, but the Java 4 version is. Fixes 1756338. | Greg Luck |
| Fix | LfuMemoryStore did not support Non-Serializable objects. Fixes 1744643. | Greg Luck |
| Fix | Excessive CPU and (debug) logging when multicast send fails. Added a sleep to reduce the log spam when multicast is being blocked by a firewall. Continuous log messages obscure the network configuration issue. Thanks to Ronald Tschal for the bug report and patch. Fixes 1755263. | Greg Luck |
| Fix | NPE during CacheManager shutdown with persistent disk cache only where the maxElementsOnDisk=1. Thanks to James Shaw for the bug report. Fixes 1759740. | Greg Luck |
| Fix | i18n issue in the PageFragmentCachingFilter. Thanks to David Sheldon for the bug report and fix. Fixes 1753349. | Greg Luck |
| Fix | ManualRMICacheManagerPeerProvider.listRemoteCachePeers lists no peers if one node is down. The manually configured cluster should list those peers that are available so that the cluster can continue until the missing node is restored. Fixes 1739612. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Where the Hibernate EhCacheProvider or SingletonEhCacheProvider is being used with a configurationResourceName to load an ehcache configuration other than default, when it is not found in the classpath, no warning or other failure occurs. Ehcache will instead load itself from defaults. Added a warning message to indicate that a configurationResourceName was specified but could not be found. This should simplify debugging. Thanks to Robert Watkins for raising this issue. Fixes 1728071. | Greg Luck |
| Fix | RMIRegistry is now stopped if it was started by ehcache. This fixes a classloader memory leak on redeploy and reload in app servers. Thanks to Stefan Fleiter for supplying a patch. Fixes 1728780. | Greg Luck |
| Fix | Tweak to bootstrap to check for expired elements. It will skip expired elements rather than failing the bootstrap. Thanks to Stefan Fleiter for supplying a patch. Fixes 1728950. | Greg Luck |
| Fix | PropertyUtil.parseProperties using a JDK 1.5+ only feature. This issue was introduced in 1.3.0-beta3. Thanks to Ben Piper for pointing this out. Fixes 1732424. | Greg Luck |
| Fix | DiskStore trace message for put back ups should only log when the DiskStore is backed up. Thanks to Stefan Fleiter for this one. Fixes 1730999. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Add the ability to specify the property separator for the properties element in factory configurations. This is a new attribute propertySeparator that can be used in ehcache.xml configuration files. | Greg Luck |
| Update | Enable the DiskStore to be programmtically pluggable in the Store hierarchy. Thanks to Matt Magoffin for the patch. | Greg Luck |
| Update | Applied minor patch to Element to allow it to be easily persisted using mechanisms other than Java Serialization. Thanks to Matt Magoffin for the patch. | Greg Luck |
| Fix | Problems when peer lookup fails when receiving heartbeats because heartbeat receiving is single-threaded. This issue affects dirty or misconfigured networks or clusters. It hardens ehcache so that valid peers can still form a cluster in the presence of Naming.lookup() problems with one or more peers. Thanks to Daniel Weill and Fredrik Bertilson for reporting this and Daniel for supplying a patch. The patch changes the heartbeat receiving implementation to be multi-threaded so that one bad peer cannot bring the others down. Fixes 1715492. | Greg Luck |
| Update | Ehcache does asynchronous puts to the DiskStore. In previous version the amount of memory that could be used for spool buffering was unlimited. In very high load situations with limited memory this could cause OutOfMemory erros. This version introduces a diskSpoolBufferSizeMB configured per cache with a default of 30MB. Set this value to control the maximum amount of memory each cache DiskStore spool can consume. The default of 30MB should work well for backward compatibility. If you notice your DiskStore performance is affected negatively, increase diskSpoolBufferSizeMB. Fixes 1720152. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Fix issue reported by Fredrik Bertilsson regarding peers entering and leaving a cluster, where the reentered peer would never get updates. | Greg Luck |
| Fix | Fixed RMICachePeer.getElements so that it does not allow null elements. Fixes 1703340. | Greg Luck |
| Fix | DiskStore SpoolThread is too slow under Java 1.6. The Spooling Thread was set to 2, on a scale of 1 to 10 from lowest to highest priority. Under JDK 1.6, this setting did not allocate enough CPU to enable the spool to be cleared in a given situation, whereas under JDK1.5 it did. This seems to be a bug in JDK6. The priority is now set to Thread.NORMAL_PRIORITY, which is 5. Fixes 1681308. | Greg Luck |
| Update | Distributed cache - flushing replicationQueue on dispose. We should flush the replication queue rather than clear it on dispose. Fixes 1684223. | Greg Luck |
| Fix | Fix clone problem introduced in 1.3-beta. This affects caches created from the default cache. Thanks to Erik Voorbraak for reporting this. Fixes 1704257. | Greg Luck |
| Fix | Add note to sample ehcache.xml and documentation about the reserved cache name "default". Fixes 1694609. | Greg Luck |
| Update | The shutdown hook is now turned off by default. Set the system property net.sf.ehcache.enableShutdownHook=true to turn it on. | Greg Luck |
| Fix | Document known issue with Tomcat. The presence of multiple <Host> entries in Tomcat's server.xml prevents replication from occuring. Thanks to David Patton for reporting this. Fixes 1706854. | Greg Luck |
| Fix | Make clear in the JavaDoc documentation in Cache that RemoteCacheException can be thrown by calls to put, remove and removeAll when the cache replication policy is synchronous and a remote peer is unavailable. Thanks to Christopher G. Stach II for reporting this issue. Fixes 1680964. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Added a net.sf.ehcache.jcache package, which is an implementation of JSR107, backed by ehcache. | Greg Luck |
| Add | Added a net.sf.ehcache.management package, which contains full JMX instrumentation for ehcache. | Greg Luck |
| Fix | Statistics Variables Need to be Longs. Changed internal representation to long in Cache, kept the direct getters for backwards compatible and changed the new Statistics class to be long based. Use getStatistics() to access the longs with out loss of precision. Reapplied. Somehow this got lost from 1.2.4. Fixes 1588796. | Tony Voss |
| Fix | Filter was rethrowing IOException as ServletException. The spec is clear that IOException is thrown as well. Catching these and rethrowing them as ServletException causes these IllegalStateException in Glassfish. | Chris Ryan |
| Fix | JBoss, Spring and some other applications have shutdown hooks. A race condition existed in CacheManager#shutdown() such that multiple shutdown hook threads could attempt to shutdown the CacheManager at the same time. Added class synchronization to prevent this and also added a check for the system property net.sf.ehcache.disableShutdownHook=true which will disable addition of the shutdown hook. Reported by various people. Note: In ehcache-1.3-beta2 and higher the shutdown hook is off by default. The above property has no effect. Set the system property net.sf.ehcache.enableShutdownHook=true to enable it. Fixes 1616492. | Greg Luck |
| Fix | Element#equals(Object) causes ClassCastException when the comparison object is not an Element. Fixed. Fixes 1618798. | Greg Luck |
| Fix | GzipFilter corrupts UTF-8 encoded non-Latin characters. Fixed. Thanks to Matt Raible and Konstantin Kolinko for the bug report and Kolodin for the patch. This issue also affected the CachingFilter. Fixes 1636876. | Greg Luck |
| Fix | Fix bug in RMIBootstrapCacheLoader.doLoad. If the first element in the remote cache is null, no bootstrapping will take place. Fixed. Thanks to Ben Piper for reporting this one and the fix. Fixes 1664030. | Greg Luck |
| Fix | Fix issue reported by Fredrik Bertilsson regarding peers entering and leaving a cluster, where the reentered peer would never get updates. | Greg Luck |
| Fix | Fix bug for the combination of Automatic Peer Discovery and synchronous bootstrapping. Fixes 1661328. | Greg Luck |
| Remove | Removed the JNDI manual listener and peer provider. This was proving difficult to maintain. Custom listeners and providers are pluggable and can be added as an extension to ehcache. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Update | Consolidate shutdown hooks to one on each CacheManager instance. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Remove | Dropped support for JDK1.3. Resulting changes are proper chained exceptions, and no longer requiring commons-collections. This enables some simplifications in the code base and eases maintenance. | Greg Luck |
| Add | Added a maxElementsOnDiskStore attribute to cache. This lets disk stores be bounded. ehcacheLFU eviction is used to decide which element to evict. | Greg Luck/Jody Brownell |
| Add | Combined the DiskStore's expiry and spool threads. They were competing for the same locks anyway. This reduces the maximum number of threads used from 2 to 1 per DiskStorwe. | Greg Luck/Jody Brownell |
| Add | Enable the timeToLive to be set on the cacheManagerPeerProviderFactory. This enables the spread of multicast packets to be controlled from a single host to the Internet. The default is 1, which is the same as the Java default so the default behavior will not change for existing users. Fixes 1588976. | Tony Voss |
| Fix | Fix typo in lock timeout log message in BlockingCache. Thanks to Matt Magoffin for reporting this bug. Fixes 1574735. | Greg Luck |
| Fix | Fix issue where it is not possible to specify a DiskStore path consistently on all operating systems. This is a workaround to a JDK bug. Always create paths like "java.io.tmpdir/cache". Any trailing characters to java.io.tmpdir added for windows and solaris will be removed and placed with a single file separator. Fixes 1579761. | Greg Luck |
| Fix | Fixed NullPointerException on Cache.evictExpiredElements() and added some other NPE guards to Cache. Fixes 1563017. | Greg Luck |
| Fix | Synchronous bootstrap and manual peer discovery combination does not work because the first cache to start always fails. This is normal and the CacheManager should cope with it. Added a catch and log a message when this happens. Thanks to Patrick Galley for the bug report. Fixes 1585015. | Greg Luck |
| Fix | ehcache.xsd diskStore path defined as xs:NCName Fixes 1589004. | Greg Luck |
| Fix | Fix documentation error: Ehcache provider package inconsistent Fixes 1589451. | Greg Luck |
| Fix | Fixed NPE when both DiskStore path is not configured and DiskStorePath is not being used. Thanks to mdillon for the patch. This was also reported under the above bug number. Fixes 1593099. | Greg Luck |
| Fix | CachingFilter and its subclasses now work when upstream filters or servlets return 404 or 302, 301. | Greg Luck |
| Fix | Fixed rare ConcurrentModificationException in getBoundCachePeers. Thanks to Tony Voss Fixes 1584776. | Greg Luck |
| Fix | Harden heartbeat sender for IOExceptions and large peer sizes. Thanks to Tony Voss for the patch. Fixes 1583996. | Greg Luck |
| Fix | Reduce network utilisation for distributed caching through the optimisation of only doing a Naming.lookup(url) when the url has not been seen before. Fixes 1584041. | Greg Luck |
| Fix | Various fixes to web package to make filters work on Sun Application Server 9 and Tomcat in addition to Orion. Add support for errors and redirects passing through filters. | Greg Luck |
| Fix | Multiple multicast packets sends multiple heartbeats Fixes 1592324. | Tony Voss |
| Fix | Infinite recursion in BlockingCache.getKeysNoDuplicateCheck Fixes 1591711. | dguist |
| Fix | Statistics Variables Need to be Longs. Changed internal representation to long in Cache, kept the direct getters for backwards compatible and changed the new Statistics class to be long based. Use getStatistics() to access the longs with out loss of precision. Fixes 1588796. | Tony Voss |
| Type | Changes | By |
|---|---|---|
| Add | Cache.remove doesn't fire listeners if element didn't exist. This stopped cluster removes from working where the local cache does not have the element cached. Thanks to Elijah Epifanov for reporting this one and arguing the case for this behaviour Fixes 1524597. | Greg Luck |
| Add | Allow references to ehcache.xsd in ehcache XML files. All of the ehcache.xml files have had the schema reference added. This allows easy validation of ehcache.xml configuration files using tools like Eclipse and IntelliJ. Thanks to Gabriel Klein for suggesting this. Fixes 1540653. | Greg Luck |
| Add | Added a new property asynchronousReplicationIntervalMillis to the RMICacheReplicator factory configuration to control the interval at which it runs. The default is 1000ms, which is the value it was hardcoded too in earlier versions. Fixes 1540657. | Greg Luck |
| Add | Added a new notifyRemoveAll cache event notification as requested by users. Called during Ehcache#removeAll() to indicate that the all elements have been removed from the cache in a bulk operation. The usual notifyElementRemoved is not called. This notification exists because clearing a cache is a special case. It is often not practical to serially process notifications where potentially millions of elements have been bulk deleted. | Greg Luck |
| Add | Added a new notifyElementEvicted cache event notification as requested by users. Called immediately after an element is evicted from the cache. Evicted in this sense means evicted from one store and not moved to another, so that it exists nowhere in the local cache. In a sense the Element has been removed from the cache, but it is different, thus the separate notification. The usual notifyElementRemoved is not called. | Greg Luck |
| Update | Asynchronous replication / soft references. There is a trade off between OutOfMemory risk and replication correctness. Change the RMIAsynchronousCacheReplicator so that Elements are SoftReference, not all EventMessages. The result is that put and update via copy may be SoftReference collected, but remove and update via remove will always go through. Fixes 1523915. | Greg Luck |
| Update | Change Cache#getQuiet so that cache statistics are not updated. This is a sensible API change and probably always should have worked this way. | Greg Luck |
| Update | Open up some classes by removing final keyword and changing the constructors to public. | Greg Luck |
| Fix | Fix isssue where a distributed cache can take up to a minute to shutdown. This issue affected web container and application server shutdowns. The fix is to unbind RMICachePeers before unexporting them. Thanks to Lennard Fuller and Peter Chiang for finding and fixing this hard one. Fixes 1532610. | Greg Luck |
| Fix | Fixed a few broken links and inconsistencies in the documentation. Fixes 1529506. | Greg Luck |
| Fix | Bad dependency scopes in Maven2 POM. Most dependencies are required only at test time. Changed the pom to reflect this. Fixes 1542696. | Greg Luck |
| Fix | Synchronous replicators in a cluster can deadlock trying to replicate to each other. The deadlock gets resolved by a SocketTimeoutException depending on what you set it too. Reduce synchronization around gets, puts and removes so that listener notification is not synchronized, which resolves this problem. Fixes 1540322. | Greg Luck |
| Fix | Fixed a bug where in BlockingCache and SelfPopulatingCache where setTimeoutMillis was set to a non zero value. Fixes 1550043. | Greg Luck |
| Fix | Large TTL values cause expire time to be incorrect in Element. Changed ONE_SECOND from an int to a long which fixes the issue. Fixes 1548314. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Added a ShutdownListener which implements ServletContextListener for shutting down all CacheManagers in a web application. Fixes 1521843. | Daniel Wiell |
| Fix | If you put an Element with overridden TTL and TTI values and then replace it with an Element with defaults, the new Element lives forever. putQuiet is not affected by this bug. Thanks to Pete at Goodtech for finding this one. Note that a symptom of this bug for caches that overflow to disk is an endlessly growing .data file for the Cache. Fixes 1516447. | Greg Luck |
| Fix | Reduce the memory used by flushSpool() in DiskStore. See http://gregluck.com/blog/archives/2006/07/tuning_memory_u.html for details. | Greg Luck |
| Fix | Cache names with slashes cause problems. Tightened the validation code around setting a cache name. Now throw IllegalArgumentException if a cache name is null or contains '/'. Thanks to Daniel Wiell for repoting this one and suggesting the fix. Fixes 1521699. | Greg Luck |
| Fix | Loading an element from the disk store fails in some circumstances due to classloading issues. This issue was created by a patch to fix 1324221 back in October 2005. Resolved by trying the new way and then, if a ClassNotFoundException is thrown, doing it the old way. Fixes 1517565. | Greg Luck |
| Fix | CachingFilter should not change Thread name. Now sets it back to the original when done. Fixes 1513436. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Change Blocking cache to use a lock striping technique for its Mutexes. This limits the number of Mutexes to 100, rather than a number equalling the number of keys, while preserving excellent liveness and safety. Thanks to Olaf Krische for reporting this and Brian Goetz for assisting with a solution. Fixes 1492900. | Greg Luck |
| Add | Change BlockingCache and SelfPopulatingCache to act as decorators for Ehcache. Remove now redundant BlockingCacheManager and SelfPopulatingCacheManager. Change signatures of these caches from Serializable to Object. This change is not backward compatible but no libraries use these, so developers can change over on their own projects. | Greg Luck |
| Fix | This was reported by Victor Volle and is a duplicate of 1492900. Fixed. Fixes 1190614. | Greg Luck |
| Fix | Changing all classloading to the context classloader is sometimes inconvenient. Fallback to ClassLoaderUtil.class.getClassLoader() if Thread.currentThread().getContextClassLoader() fails. Thanks to Robert Watkins for reporting this one. Fixes 1506399. | Greg Luck |
| Fix | Debug messages generate excess String objects. Added logging level guards around about 6 debug log statements. Thanks to Derek Hulley for pointing this one out. Fixes 1508623. | Greg Luck |
| Fix | Harden all ehcache threads so that RuntimeExceptions and Errors do not stop them. This change, on its own, has been backported to a separate release, ehcache-1.2.0_01. | Greg Luck |
| Update | Change spooling mechanism to use less memory, so as to avoid memory spikes. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Added the constructs package which was previously a separate module. The constructs package adds valuable functionality and given that the 1.2 jar size is large, can be added with only a small increase in jar size. | Greg Luck |
| Add | Allow zeroconf of RMICacheManagerPeerListenerFactory. A configuration <cacheManagerPeerListenerFactory class="net.sf.ehcache.distribution.RMICacheManagerPeerListenerFactory"/> will now work. The listener port will be automatically assigned a free port. Fixes 1483735. | Greg Luck |
| Add | New SingletonEhCacheProvider for use by Hibernate in situations where code has been written which relies on the singleton behaviour of ehcache-1.1 and earlier. Most code bases using Hibernate should not require this. | Greg Luck |
| Add | Allow cacheEventListenerFactory elements to be added to defaultCache in ehcache.xml. This allows caches created with CacheManager.addCache(String cacheName) to receive events. This can be used for example to set default replication settings in defaultCache. | Greg Luck |
| Add | To complement full support foe default cache (above), added support for programmatic addition of caches which include CacheReplicators. Also support for removal of these caches with CacheManager.remove(String cacheName). | Greg Luck |
| Add | Andy McNutt's JNDI-based manual RMI replication added. See ehcache.xml example for how to use. | Greg Luck |
| Add | Support tomcat 5.5 for the servlet filters. Tomcat integration testing, in addition to the Orion one, is also added to the full JUnit test process. Tomcat relies on Servlet 2.4 dispatcher INCLUDE and FORWARD directives for page fragment caching. | Greg Luck |
| Add | Support runtime setting of individual Element time to lives, time to idles and eternal overrides. If an override is set, the Element expiry ignores the Cache default. | Greg Luck |
| Add | Add a cache bootstrap mechanism. This is used to populate a cache when it is first initialized. An abstract factory, BootstrapCacheLoaderFactory has been defined along with an interface BootstrapCacheLoader. The initial concrete implementations are for RMI, so that a new cache entering a cluster gets bootstrapped from a randomly chosen peer. | Greg Luck |
| Add | Allow CacheManager instances to use the same ehcache.xml configuration. Automatically resolve conflicts for DiskStore and CacheManagerPeerListener. Log a warning that the conflict existed and what was done to resolve it along with a suggestion to either use ehcache in singleton mode or specify separate ehcache.xml configurations for each CacheManager instance. | Greg Luck |
| Fix | Theoretically possible NPE if a MulticastRMICacheManagerPeerProvider is started and then stopped before a multicast socket connection can be established. Added guard for NPE. Thanks to Roman Kurmanowytsch for reporting the issue and a fix. Fixes 1480442. | Greg Luck |
| Fix | Add shutdown hook to RMICacheManagerPeerListener so that, even if CacheManager.shutdown() is not called, processes still exit cleanly. This is a bug rather than a feature request because Cache has a shutdown hook to always cleanly shut down disk store, and ehcache should be consistent in supporting shutdown hooks. Fixes 1485765. | Greg Luck |
| Fix | In GzipFilter and CachingFilter Gzipping an empty response body creates 20 byte responses. Fixed so that this situation is detected and a zero bytes gzipped body, with a content length also of 0 is returned. Can occur in 204 and 304 responses. Fixes 1486858. | Greg Luck |
| Fix | Changed localhost lookup to a static in Cache, to avoid a potential bottleneck when creating and destroying large numbers of caches rapidly. Thanks to Derek Hully for the bug report and suggested fix. Fixes 1488853. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Changing the API to Object from Serializable breaks projects. Leave the existing Serializable API in place and add new constructors and methods for Object. Add getObjectValue and getObjectKey to Element. Fixes 1473833. | Greg Luck |
| Fix | Closing Cache does not remove reference from DiskStore, preventing Garbage Collection of DiskStore and Cache on dispose of a cache. Fixed to set Cache reference to null on dispose. Thanks to Felix Meschberger for the patch. Fixes 1474363. | Greg Luck |
| Fix | Closing Cache does not remove shutdown hook, preventing Garbage Collection of a Cache with a persistent DiskStore on dispose of a cache. Fixed to remove the shutdown thread after dispose. Thanks to Felix Meschberger for the patch. Fixes 1474360. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Update | License updated to Apache 2.0. | Greg Luck |
| Update | Following many requests, ehcache no longer requires that Elements contain Serializable keys and values. Ehcache will gracefully degrade for those operations which require Serialization. In particular the MemoryStore and event listeners can be used with Non Serializable elements. WARNING error messages are logged when an operation cannot be completed because the key or value is not Serializable. | Greg Luck |
| Update | Feature Request 1458049 Wrap original exceptions during configuration. Added an intial cause Throwable field to CacheException to facilitate easier reporting without breaking pre JDK1.4 compatibility. | Greg Luck |
| Remove | Removed the old Hibernate plugin from the code base. It has been deprecated since the beginning of the 1.2 beta series. The plugin is being actively maintained in the Hibernate project. Any project still using net.sf.ehcache.hibernate.Plugin should change their Hibernate configurations to org.hibernate.cache.EHCacheProvider. | Greg Luck |
| Add | Feature Request 1081071. Added the ability to specify subdirectories under System Property paths. e.g. java.io.tmpdir/one | Greg Luck |
| Add | Feature Request 1025706. Added the ability to specify a system property, net.sf.ehcache.disabled=true, to easily disable ehcache. A disabled cache works fully but discards and Elements added to it. | Greg Luck |
| Fix | Add protections to the DiskStore spoolThread against programming errors in Elements that can cause it to die. Secondly, if it does die, disable adding elements to the DiskStore and log an error, so as to gracefully degrade. Fixes 1432458. | Greg Luck |
| Fix | flush() was using up to double the memory used by a MemoryStore during flush() which could cause an OutOfMemory error on shutdown if memory was constrained. flush no longer causes any memory spike. Thanks to Sergey Nekoval for reporting the bug. Fixes 1369073. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Introduced new caching policies in addition to the standard LRU. FIFO and LFU were added. LRU remains the default unless explicitly set in each cache's configuration. Thanks to Surya Suravarapu for working with me on these. The documentation has a new section on caching policies and when to use what. | Surya Suravarapu |
| Add | Introduced CacheManagerEventListener and CacheEventListener interfaces and default implementations. These can be configured in ehcache.xml or set programmatically. Thanks to steve at jofti dot com for help with the specification for these. | Greg Luck |
| Add | After requests from Jo Walnes, Paul Hammant and others, I have added normal instance constructers to CacheManager which do not act as singletons. The factory singleton methods remain for backward compatibility. CacheManager can now be constructed with a Configuration object programmatically. | Greg Luck |
| Add | Since version 1.1, ehcache has had a persistent diskStore, which makes it suitable for storing application state. Added a flush method so that, if the cache is diskPersistent, it can be programmatically flushed, in addition to the automatic flush which happens at shutdown. | Greg Luck |
| Add | Pluggable Distributed Caching. The default implementation supports cache discovery via multicast or manual configuration. Updates are delivered asynchronously or synchronously via custom RMI connections. Additional discovery or delivery schemes can be plugged in by third parties. | Greg Luck |
| Add | DiskStore is now up to 12 times faster in certain operations and much more scalable. | Greg Luck |
| Add | Significant (up to 7 fold) DiskStore performance increases, after introduction of finer grained threading. Thanks to Robert Watkins for reporting on the performance limits. | Greg Luck |
| Update | Clover test coverage raised to 86%. | Greg Luck |
| Update | Feature Request 431481 Distributed: The ability to notify cache event listeners excluding CacheReplicators | Greg Luck |
| Update | Feature Request 1431393 Events from remote in distributed cache should be received by any non CacheReplicator listeners | Greg Luck |
| Update | Patch 1158788. Fix for dependencies list... MemoryStore.java to remove Apache commons-collections for JDK1.4 users | Greg Luck |
| Fix | change default configuration to use context classloader Fixes 1122734. | Greg Luck |
| Fix | Fix for DiskStore to deserialize using Thread.currentThread().getContextClassLoader() Fixes 1324221. | Greg Luck |
| Fix | CacheManager.shutdown now uses a Class rather than an instance lock. Fixes 1261613. | Greg Luck |
| Fix | Configurator gets a file not found when files contain spaces. Fixes 1237017. | Greg Luck |
| Fix | DiskStore degrades under load. Fixes 1332728. | Greg Luck |
| Fix | Change classloader to Thread.currentThread().getContextClassLoader() for ehache.xml. Fixes 1079529. | Greg Luck |
| Fix | DiskStore data file is not deleted when index is corrupt. Fixes 1414674. | Greg Luck |
| Fix | JavaDoc documentation fix for element.getLastAccessTime returns 0 for element just created Fixes 1224325. | Greg Luck |
| Fix | Documentation should advise using the Hibernate supplied plugin rather than the older one in ehcache which is now deprecated. Fixes 1247019. | Greg Luck |
| Fix | Fix bug introduced in 1.2 beta series. Removed Boolean.parseBoolean and java.util.Queue which were introduced in the JDK1.5 API to preserve backward compatibility. | Greg Luck |
| Fix | Fix bug introduced in 1.2 beta series. Changed ant script to avoid compiling with clover in dists | Greg Luck |
| Fix | Fix bug introduced in 1.2 beta series. Cannot load configuration from jar (or any non-file URL). Fixes 1410374. | Greg Luck |
| Fix | Fix bug introduced in 1.2 beta series. NPE on RMICacheManagerPeerProviderFactory when rmiUrls not specified. Now throws a meaningful CacheException. Fixes 1432074. | Greg Luck |
| Fix | Fix bug introduced in 1.2 beta series. Deadlock on deserialization of a cache entry. Thanks to Felix Meschberger for reporting the bug and uploading a patch. Fixes 1445694. | Greg Luck |
| Fix | Fix bug introduced in 1.2 beta series. Caches created with Cache.addCache(String) share a RegisteredEventListeners instance. Thanks to Olaf Ontaine for for reporting the bug and showing how it happens. Fixes 1457268. | Greg Luck |
| Fix | Fix bug introduced in 1.2 beta series. RMIAsynchronousCacheReplicator mishandling non-copy updates. Thanks to Randy Puro for a patch. Fixes 1451780. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Remove | Split out the entire constructs package. These are now in a new subproject: ehcache-constructs, which has been released. See http://ehcache.org/ehcache-constructs for more details. | Greg Luck |
| Remove | removed the dependency on Doug Lea's concurrency library. | Greg Luck |
| Add | Add new documentation on cache configuration and hibernate performance tuning. | Greg Luck |
| Fix | Extra check to make sure that we always close persistent disk store's FileInputStream in the rare case where the ObjectInputStream is null. Fixes 1063908. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Added SelfPopulatingCacheManager | Greg Luck |
| Add | Added a new diskExpiryThreadIntervalSeconds configuration option to ehcache.xml, to allow tuning of the expiry thread per cache. | Greg Luck |
| Add | Added a new diskPersistent feature and configuration option. diskPersistent makes disk stores persistent between CacheManager and JVM restarts. It enables very long held caches to be configured, useful for very expensive cache entries that are long lives, such as mapping geocodes. | Greg Luck |
| Fix | Expiry Thread now has a default time of 2 minutes, not 25. | Greg Luck |
| Fix | Expiry Thread now dies immediately on DiskStore disposal. | Greg Luck |
| Fix | cache.calculateInMemorySize() now returns a non-zero value | Greg Luck |
| Fix | Bug 1025130 - Null Pointer Exception when no default cache configured. Now we throw a CacheException with a meaningful message. | Greg Luck |
| Fix | Bug 1025128 IBM Websphere alway requires commons-collection.jar, even though it is never used. Updated requirements to note this. | Greg Luck |
| Fix | Patch 1030960. JDK1.4 and higher now chain exception thrown from SelfPopulatingCache. | Greg Luck |
| Fix | 1033061 Fix to Thread naming in SelfPopulatingCache so that the old name is always put back. | Greg Luck |
| Fix | 1003659 build script unfriendly to IDE: IDE builds should now work. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | ehcache.xml cache definitions can now omit timeToIdle and/or timeToLive, which are now optional attributes. This will make cache config easier to read for eternal caches. Either omitting the attributes or setting them to 0 causes them not to be considered when calculating expiry. Earlier versions of ehcache would have immediately expired all elements if either attribute was set to 0, so this change should not break any existing code. | Greg Luck |
| Add | Added getQuiet and putQuiet methods to Cache. These methods are the same as get and put but do not affect statistics. | Greg Luck |
| Add | Implemented an Element clone method. | Greg Luck |
| Add | Added calculateInMemorySize() method to Cache to measure the approximate size of a cache's memory footprint. | Greg Luck |
| Update | Increased Clover test coverage to above 80%. | Greg Luck |
| Update | Added many new tests for idle expiry. | Greg Luck |
| Update | Added tests for the new constructs package. These tests demonstrate concurrency performance differences between blocking cache designs based on notify/notifyAll and Doug Lea's concurrency package. | Greg Luck |
| Update | Test new xml format scenarios for eternal, time to idle and time to live | Greg Luck |
| Update | Started adding performance tests to ensure there are no regressions over time. | Greg Luck |
| Add | Added a new constructs package. There are blocking, self populating and self populating collections caches. These are all pull-through caches. They are useful where the cost of creating an entry is high. Details follow: BlockingCache - a cache which blocks subsequent threads until the first read thread populates a cache entry <br/><br/> SelfPopulatingCache - a read-through cache. A cache that populates elements as they are requested without requiring the caller to know how the entries are populated. It also enables refreshes of cache entries without blocking reads on the same entries. <br/> <br/> SelfPopulatingCollectionsCache - a SelfPopulatingCache that adds threading safety where it is known in advance that all entries will be collections. <br/> <br/> The package is useful for, inter alia, : <br/><br/> - Web Page caches <br/> - Search Engine caches<br/> <br/><br/> See the tests for examples of how to use this package. <br/><br/> This package requires Doug Lea's concurrency library. A copy is provided in the tools directory when you check out the project by SVN. Or, you can get it from http://gee.cs.oswego.edu/dl/cpj/ Note that if you are not using the constructs package, you do not need the concurrency library. | Greg Luck |
| Fix | JavaDoc fixups | Greg Luck |
| Fix | Fixed time to idle which was not expiring elements after the idle time had expired. This feature did not seem to be getting used. It is now useable. Fixed the test which was also broken | Greg Luck |
| Fix | Fixed bugs with getSize and getKeys, which were not checking for duplicate keys between the memory and disk stores. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Investigated a Hibernate SessionFactory bug and clarified it was not a Hibernate bug. Added test. | Greg Luck |
| Add | Investigated a cache size possible bug and clarified it is not in EHCache. Added test. | Greg Luck |
| Add | Added Clover test coverage reporting. Clover instrumentation is not included in release jars. | Greg Luck |
| Add | Updated Hibernate testing to version 2.1.1 | Greg Luck |
| Add | Modified the Apache license at the request of the Apache Cocoon project. | Greg Luck |
| Fix | Fixed a very rare null pointer exception, when retrieving a cache entry. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Fix | Cache Configuration Fixed null pointer exception where the disk store path was not specified when use disk store is set to false | Greg Luck |
| Fix | JDK1.3 Compatibility Replaced JDK1.4 Exception constructors with simple message constructors compatible with JDK1.2 and 1.3 | Greg Luck |
| Fix | Problem with Element expiry Fixed bug where expiry checking on get was calling remove with the element rather than the key. | Greg Luck |
| Fix | Expire thread should not run if the cache is not active Changed the expire thread to while(active) | Greg Luck |
| Fix | Expiry thread unnecessarily being created for eternal caches Skipped creating the expiry thread if caches are eternal. | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Remove | Remove SoftReferences SoftReferences for cache element values has been replaced with standard references. The JDK 1.4.2 JVM was found to remove SoftReferences in normal operation, rather than the expected behaviour of use only to avoid memory exhaustion. Caches will now behave deterministically. Element values will only be removed when the element is garbage collected. | Greg Luck |
| Fix | Hibernate Cache Provider. Fixed bug where incompatible timestamps were generated | Greg Luck |
| Fix | Time to Idle" documentation bug. | Greg Luck |
| Fix | Fixed documentation bug in ehcache.xml and ehcache-failsafe.xml where "Time to Live" was incorrectly referred to as "Time to Idle" | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Changed from JDK1.4 Logging to Commons Logging. This is to permit JDK1.2 and JDK1.3 to use EHCache. | Greg Luck |
| Add | Added Apache Commons Collections LRUMap as an alternative backing Map for the MemoryStore. The java.util.LinkedHashMap has been retained and is used automatically for JDK1.4 and higher. | Greg Luck |
| Add | Added LICENSE.txt to the jar in the distribution | Greg Luck |
| Fix | Don't create a Disk Store when overflowToDisk="false" is set in ehcache.xml | Greg Luck |
| Fix | toString() methods now report on all fields | Greg Luck |
| Fix | Fixed documentation bug in ehcache.xml and ehcache-failsafe.xml where "Time to Live" was incorrectly referred to as "Time to Idle" | Greg Luck |
| Type | Changes | By |
|---|---|---|
| Add | Initial version, originally based on a fork from JCS plus donated patches. | Greg Luck |
GC creates a lot of problems in our applications. With BigMemory, we hope to reduce the time and the complexity of GC configuration, and avoid unpredictable pauses.Enterprise Architect, Germany
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