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RELEASE-NOTES.txt
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RELEASE-NOTES.txt
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Apache Commons Pool 2.6.0 RELEASE NOTES
The Apache Commons Pool team is pleased to announce the release of Apache Commons Pool 2.6.0.
Apache Commons Pool provides an object-pooling API and a number of object pool implementations.
Version 2 contains a completely re-written pooling implementation compared to the 1.x series.
In addition to performance and scalability improvements, version 2 includes robust instance
tracking and pool monitoring.
- Version 2.6.0 requires Java 7 or above.
- Version 2.5.0 requires Java 7 or above.
- Version 2.0 requires 6 or above.
No client code changes are required to migrate from versions 2.0-2.3 to version 2.4.3.
Users of version 1.x should consult the migration guide on the Commons Pool web site.
NOTE: The MBean interfaces (DefaultPooledObjectInfoMBean, GenericKeyedObjectPoolMXBean
and GenericKeyedObjectPoolMXBean) exist only to define the attributes and methods
that will be made available via JMX. They must not be implemented by clients as
they are subject to change between major, minor and patch version releases of
Commons Pool. Clients that implement any of these interfaces may not, therefore,
be able to upgrade to a new minor or patch release without requiring code
changes.
This is a maintenance release.
Changes in version 2.6.0 include:
Fixed Bugs:
o POOL-337: Ensure cancelled eviction tasks are removed from scheduler. Thanks to Reinald Verheij.
o POOL-338: GenericObjectPool constructor may throw an exception under OSGi. Thanks to Michael C, Gary Gregory.
o POOL-324: org.apache.commons.pool2.impl.GenericObjectPool.getFactoryType() throws java.lang.ClassCastException. Thanks to Jay Xu, Gary Gregory.
o POOL-344: Delete repeated call startEvictor. Thanks to Yulin Wang.
Changes:
o POOL-336: GenericObjectPool's borrowObject lock if create() fails with Error. Thanks to Wolfgang Glas.
o POOL-339: Update optional library cglib from 3.2.5 to 3.2.6.
o POOL-341: Update optional library asm-util from 6.0 to 6.1.1.
o POOL-342: Update optional library asm-util from 6.1.1 to 6.2.
Note that Clirr reports one warning:
"Value of field DEFAULT_EVICTION_POLICY_CLASS_NAME is no longer a compile-time constant."
The value is initialized as "public static final String DEFAULT_EVICTION_POLICY_CLASS_NAME = DefaultEvictionPolicy.class.getName();"
The value should not change from one run to the next.
For complete information on Apache Commons Pool, including instructions on how to submit bug reports,
patches, or suggestions for improvement, see the Apache Apache Commons Pool website:
http://commons.apache.org/proper/commons-pool/
Download page: https://commons.apache.org/proper/commons-pool/download_pool.cgi
-----------------------------------------------------------------------------------------------
Apache Commons Pool 2.5.0 RELEASE NOTES
The Apache Commons Pool team is pleased to announce the release of Apache Commons Pool 2.5.0.
Apache Commons Pool provides an object-pooling API and a number of object pool implementations.
Version 2 contains a completely re-written pooling implementation compared to the 1.x series.
In addition to performance and scalability improvements, version 2 includes robust instance
tracking and pool monitoring. Version 2 requires JDK level 1.6 or above.
No client code changes are required to migrate from versions 2.0-2.3 to version 2.4.3.
Users of version 1.x should consult the migration guide on the Commons Pool web site.
NOTE: The MBean interfaces (DefaultPooledObjectInfoMBean, GenericKeyedObjectPoolMXBean
and GenericKeyedObjectPoolMXBean) exist only to define the attributes and methods
that will be made available via JMX. They must not be implemented by clients as
they are subject to change between major, minor and patch version releases of
Commons Pool. Clients that implement any of these interfaces may not, therefore,
be able to upgrade to a new minor or patch release without requiring code
changes.
This is a patch release, including bug fixes only.
Changes in version 2.5.0 include:
New features:
o POOL-332: ObjectPool and KeyedObject pool should extend Closeable.
o POOL-335: Make abandoned logging stack trace requirements configurable. This also reverts
the default behavior introduced by POOL-320.
Changes:
o POOL-331: Update from Java 6 to 7.
o POOL-333: Update optional dependency asm-util from 5.2 to 6.0.
o POOL-334: org.apache.commons.pool2.impl.ThrowableCallStack.Snapshot is missing serialVersionUID.
For complete information on Apache Commons Pool, including instructions on how to submit bug reports,
patches, or suggestions for improvement, see the Apache Apache Commons Pool website:
http://commons.apache.org/proper/commons-pool/
-----------------------------------------------------------------------------------------------
Apache Commons Pool 2.4.3 RELEASE NOTES
The Apache Commons Pool team is pleased to announce the release of Apache Commons Pool 2.4.3.
Apache Commons Pool provides an object-pooling API and a number of object pool implementations.
Version 2 contains a completely re-written pooling implementation compared to the 1.x series.
In addition to performance and scalability improvements, version 2 includes robust instance
tracking and pool monitoring. Version 2 requires JDK level 1.6 or above.
No client code changes are required to migrate from versions 2.0-2.3 to version 2.4.3.
Users of version 1.x should consult the migration guide on the Commons Pool web site.
NOTE: The MBean interfaces (DefaultPooledObjectInfoMBean, GenericKeyedObjectPoolMXBean
and GenericKeyedObjectPoolMXBean) exist only to define the attributes and methods
that will be made available via JMX. They must not be implemented by clients as
they are subject to change between major, minor and patch version releases of
Commons Pool. Clients that implement any of these interfaces may not, therefore,
be able to upgrade to a new minor or patch release without requiring code
changes.
Changes in version 2.4.3 include:
New features:
o POOL-320: Use more efficient stack walking mechanisms for usage tracking when possible.
Fixed Bugs:
o POOL-328: Documentation with repeated words (sources, tests, and examples). Thanks to Lorenzo Solano Martinez.
o POOL-317: Correction of default value of softMinEvictableIdleTimeMillis in BaseObjectPoolConfig. Thanks to KeiichiFujino.
o POOL-309: Fix misspellings from "destory" to "destroy". Thanks to jolestar, Roopam Patekar.
o POOL-306: Ensure BaseGenericObjectPool.IdentityWrapper#equals() follows the expected
contract for equals(). Thanks to Adrian Crum.
o POOL-303: Ensure that threads do not block indefinitely if more than maxTotal
threads try to borrow an object at the same time and the factory fails to
create any objects.
o POOL-310: Ensure that threads using GKOP do not block indefinitely if more than
maxTotal threads try to borrow objects with different keys at the same
time and the factory destroys objects on return. Thanks to Ivan Iliev.
o Ensure that any class name used for evictionPolicyClassName represents a
class that implements EvictionPolicy.
o POOL-315: Add a configurable delay (default 10 seconds) to wait when shutting down
an Evictor to allow the associated thread time to complete and current
evictions and to terminate. Thanks to KeiichiFujino.
o Ensure that a call to GKOP preparePool() takes account of other threads
that might create objects concurrently, particularly the Evictor.
Changes:
o POOL-280: Small refactoring of borrowObject() to reduce code duplication. Thanks to Jacopo Cappellato.
o POOL-307: Replace inefficient use of keySet with entrySet in GKOP. Thanks to Anthony Whitford.
o POOL-322: Update optional cglib library from 3.1 to 3.2.5.
o POOL-323: Update optional OW2 ASM from 5.0.4 to 5.2.
For complete information on Apache Commons Pool, including instructions on how to submit bug reports,
patches, or suggestions for improvement, see the Apache Apache Commons Pool website:
http://commons.apache.org/proper/commons-pool/
-----------------------------------------------------------------------------------------------
Apache Commons Pool 2.4.2 RELEASE NOTES
The Apache Commons Pool team is pleased to announce the release of Apache Commons Pool 2.4.2.
Apache Commons Pool provides an object-pooling API and a number of object pool implementations.
Version 2 contains a completely re-written pooling implementation compared to the 1.x series.
In addition to performance and scalability improvements, version 2 includes robust instance
tracking and pool monitoring. Version 2 requires JDK level 1.6 or above.
No client code changes are required to migrate from versions 2.0-2.3 to version 2.4.2.
Users of version 1.x should consult the migration guide on the Commons Pool web site.
NOTE: The MBean interfaces (DefaultPooledObjectInfoMBean, GenericKeyedObjectPoolMXBean
and GenericKeyedObjectPoolMXBean) exist only to define the attributes and methods
that will be made available via JMX. They must not be implemented by clients as
they are subject to change between major, minor and patch version releases of
Commons Pool. Clients that implement any of these interfaces may not, therefore,
be able to upgrade to a new minor or patch release without requiring code
changes.
This is a patch release, including bug fixes only.
Changes in version 2.4.2 include:
Fixed Bugs:
o POOL-298: Changed default jmxNameBase in BaseObjectPoolConfig to the correct (null)
default.
o POOL-300: Added PrintWriter flush to DefaultPooledObject's printStackTrace method.
For complete information on Apache Commons Pool, including instructions on how to submit bug reports,
patches, or suggestions for improvement, see the Apache Apache Commons Pool website:
http://commons.apache.org/proper/commons-pool/