ChangeLog

6.3.7  2013-06-24

  * util-app: flags use by-name default values
  * util-app: Make the global flag test idempotent
  * util-collection: guard against missing element exception in BGQ
  * util: Deal with UnknownHostException thrown by InetAddress.getLocalHost
  * util: update version in README

6.3.6  2013-06-11

  * util: Update owners files
  * util-jvm: CpuProfile: sleep the right amount of time for the recording thread
  * util-jvm: always try to construct hotspot instance Detection by VM name is unreliable.
  * util: util/* compiling, testing and benchmarking with pants.
  * util-eval: Gizzard: Some followup deps alignment to fix deployment classpath issues

6.3.5  2013-05-31

  * util-core: add Time.fromMicroseconds to util.Time
  * util-core: NullMonitor takes itself out when composed
  * util-core: deprecate Config
  * util-hashing: add entryForHash api to Distributor
  * util-app: Flag: clarify usage and hide all Flag constructors.
  * util-core: Added reduceLeft and foldLeft to the Spool class
  * util: Update sbt project for (util, ostrich, finagle)

6.3.4  2013-05-16

  * util-core: Convenience method to await all
  * util-core: RootMonitor never propagates non fatal exception

6.3.3  2013-05-13

  * util-collection: When growing chain only grow the chain. This addresses a NoSuchElementException.
  * util-eval: fix for when class files are on the classpath directly
  * util: Generate build.properties from sbt
  * util-core:Time, Duration: implement Java serialization
  * util-thrift: Bump Jackson to 1.9.11
  * util-core: Add withFilter to Future and Try
  * util: Remove zookeeper dependency ivyXML and replace with ExclusionRules

6.3.2  2013-04-18

  * util-core: create less garbage in AsyncSemaphore.acquire()
  * util-core: deprecate com.twitter.util.concurrent.Concurrent{Pool, MultiMap}
  * util-core: restore prior Future.get behavior
  * util-core: Spool error propagation
  * util-core: Use futures for schema detection to avoid blocking finagle threads
  * util-refect: test: use sys.error
  * util-zk: ZNode("/path").parentPath should be "/", not an empty string

6.3.0  2013-04-05

  * util-core: flag a bug with U64 truncation
  * util-core: Future.get: include fatal exceptions
  * util-core: deprecate Future#apply, get.
  * util-core: special-case Duration.Zero to avoid allocation

6.2.5  2013-03-27

  * util-zk: Improvements to util-zk NativeConnector
  * util: Update sbt project definition
  * util: launching test in all scala version of the project

6.2.4  2013-03-21

  * util-core: Add Future.Nil, it can be used anytime you need a Future[Seq[_]] with an empty sequence.
  * util-core: fix VM test error by ensuring reset
  * util-core: Move Disposable/Managed to util
  * util-logging: scribe binary thrift for tbird add/remove/scrub ops:
  * util: upgrade com.twitter.common.objectsize to 0.0.7

6.2.3  2013-03-08

  * util-core: Remove StreamHelper
  * Flag: create Map flag type

6.2.2  2013-02-25

  * Flag: introduce global flags

6.2.1  2013-02-20

  * HttpMux: provide visibility into available handlers
  * Flag: add Time type
  * Spool: encode exceptions
  * Closable: use Time.Bottom for close()
  * Future.within: bypass timer entirely if we're passed Duration.Top
  * Awaitable: introduce Await
  * util-jvm: GC predictor
  * io.Files: don't overallocate buffers
  * Future: use .nonEmpty instead of != Nil

6.1.0  2013-01-30

  * preliminary 2.10 port/build
  * Add Closable trait
  * Add contention snapshot

6.0.6  2013-01-22

  * util-core: concurrent.SpoolSource utility for creating Spools
  * util-core: Spool.flatMap, Spool.++
  * util-app: add shutdown hooks
  * util-logging: Make the logging work properly for Scala and
  mixed Scala/Java

6.0.4  2012-12-18

  * Broker: more efficient dequeueing of offers
  * Duration: parse all output of Duration.toString
  * ScheduledThreadPoolTimer: aggressively remove runnables
  to avoid space leak
  * util-core documentation: fix some parentheses, backticks
  * util-hashing: add Hashable type class

6.0.3  2012-12-11

  * Promise: remove future tracing, add explicit transforming state to
  avoid extraneous allocation
  * update zk client
  * com.twitter.app: composable apps & flags

6.0.1  2012-11-26

  * Use java.util.ArrayDeque in place of mutable.Queue due to
  https://issues.scala-lang.org/browse/SI-6690

6.0.0  2012-11-26

  * Removed future cancellation, which is now replaced with one-shot
  interrupts. These also carry a ``cause'' which will be used
  profitably in finagle.
  * A new, leaner Promise implemetnation
  * New implementations for Time and Duration with true sentinels
  * Promise, Try combinators no longer attempt to catch fatal
  exceptions

5.3.14  2012-11-20

  * fix compiler warnings
  * Future.join: support up to 22-tupled futures
  * com.twitter.concurrent.Serialized: explicit docs
  * util-logging: concurrent enqueue support for ScribeHandler, add stats

5.3.13  2012-10-16
  * AsyncSemaphore: Use volatile vars for the active number and the waiters
  * util-logging: fix ThrottledHandler to not leak memory
  * util-logging: for file handlers, default to append=true since that was the default with FileHandlerConfig and is safer behavior
  * upgrading slf4j dependent projects (1.6.1).
  * sbt: robust MD5 checking.
  * Fix Spool.foreachElem crashing on resoved spool with error
  * FuturePool.defaultPool: use cached threadpool by default.
  * util-logging: Correctly handle files with a shared prefix.

5.3.10  2012-09-06
  * Improve ZNode.name and ZNode.parentPath to not use Regexes
  * Fix ScheduledThreadPoolTimer.schedule(...).cancel()
  * Upgrade guava dependency to v13
  * Add a ZkClient Connector that dispatches requests across several zookeeper connections
  * Support prefix-less sequential nodes in util-zk
  * util-logging: Add Logger.withLoggers.
  * Clean up equals and hashCode for Time and Duration

5.3.7  2012-08-21
  * Disable log handler purging
  * Added ThriftCodec
  * Add a Time.hashCode method
  * GC monitor: be more quiet about missed GCs
  * patch public release of OSS libraries; catch up sbt

5.3.6  2012-07-26
  * Fix temporary file name generation

5.3.0  2012-06-25
  * util-jvm: start timer thread in 'daemon' mode

5.2.0  2012-06-14

  * JVM CPU profiler
  * util-jvm: fix for JDK 7

5.1.2  2012-06-07

  * fix documentation
  * util-jvm: gc monitoring
  * Kill com.twitter.concurrent.Channel

5.0.4  2012-06-01

  * Upgrade scala to 2.9.2
  * Java compatibility: void -> voided

4.0.1

  * added AsyncQueue
  * config:validate optional subconfigs
  * util-zk: allow multiple session event listeners, fix AsyncCallbackPromise
  exception handling, misc fixes
  * offer: deprecate apply()
  * propagate cancellation exception when Timer.doAt future is cancelled
  * KetamaDistributor optionally preserves a floating point truncation
  * Timer uses daemon thread by default
  * Future.monitor: release reference to promise when it's satisfied
  * Future: misc Java compatibility fixes
  * Eval.scala: Allow @deprecated
  * util-logging: Add LoggerFactory
  * Util: Add util-class-preloader (classfile preloading), util-jvm
  (access to performance counters)
  * Future: divorce from TryLike hierarchy
  * LogRecord: use MessageFormat
  * Time: Treat MaxValue specially in TimeMod.{add,sub}

3.0.0  2012-03-14

  * AsyncSemaphore: allow parameterizing maximum queue size
  * Logging: scribe handlers may now be named "scribe"
  * Logging: Always make sure Level is initialized before being
  able to refer to Logger.
  * Offer/Broker: simpler, more flexible implementation
  * Config: Config.optional results in lazy evaluation

2.0.0  2012-02-27

  * NetUtil: optimize ipv4 address parsing
  * upgrade to Guava r11

1.12.13  2012-02-13

  * NetUtil: Add inetAddressToInt, isInetAddressInBlock, isInetAddressInBlocks
  * Future tracer: fix bug where double proxied exceptions fail
  * add "ExceptionalFunction0" for easier use from Java
  * Locals: many optimizations to reduce allocations caused by saving
  and restoring contexts

1.12.12  2012-01-24

  * util-zk-common: Asynchronous wrappers for common ServerSets.
  * IVar.unget: only remove closures by object equality
  * Offer.choose: use nanoseconds for random seed
  * Future.const - builds a constant Future from an existing Try

1.12.9  2012-01-05

  * ThreadPoolFactories are named by default
  * Offer: ensure ObjectOrder is independent of Object#hashCode
  * new package: util-zk: asynchronous bindings to ZooKeeper

1.12.7  2011-12-02

  * Future: temporarily disabling default usage of the AsmTracer

1.12.6  2011-12-01

  * Future: all helper methods now have Java-friendly equivalents
  that take Lists.

1.12.5  2011-11-29

  * Config: recompile configs based on hash instead of timestamp, add
  memoization
  * Timer: make JavaTimer more resilient, log errors
  * FuturePool: Fixed race condition in FuturePool where work that was
  cancelled would not clean up after itself
  * Function: Add ExceptionalFunction type to allow Java to throw
  checked exceptions.
  * Futures: trace dispatch "stack", supplying it as a stack trace for
  exceptions, implement "transform", "transformedBy" to allow for a
  more imperative control flow when used from Java.
  * Monitors: composable widgets for handling exceptions

1.12.4  2011-11-09

 * Files.delete has to follow symlinks because jdk6 support
 for symlinks is weaksauce
 * properly handle cancellation in FuturePool
 * Locals: ensure ``Local'' is fully initialized before registering

1.12.3  2011-11-08

  * add some docs to Offer, Time
  * util.io.Files: file utilities, documentation for TempFile
  * Offer/Broker: explicit return types for Java compat.

1.12.2  2011-10-28

  * Json thrift deserializer
  * Finagle: count pending timeouts
  * Fix eval precompile bug

1.12.0  2011-10-21

  * util.Config.Specified now delays evaluation of specified value, to
  ensure evaluation happens in correct dependency order, rather than
  in class-hierarchy order.  This change is mostly source compatible,
  unless you have directly used the Specified class.

1.11.9  2011-10-14

  * ivar/future: provide "TCE", per-thread scheduling, and
  promise squashing
  * logger: restore original logging level after modifying them
  * u64: fix
  * filehandler: thread-visibility
  * eval: fix mtime invalidation
  * base64 encoder: make it threadsafe

1.11.8  2011-10-04

  * Back out TCE for ivar/futures. This introduced a space
  leak and will be fixed momentarily.
  * FuturePool: Catch any exception thrown by executor.submit()
  and return as a Future.exception

1.11.7  2011-09-28

  * ivar/future: provide "TCE", per-thread scheduling, and
  promise squashing
  * util-core: add bijection
  * util: Time.now is now measured at nanosecond granularity
    instead of millisecond.
  * futurepool: don't attempt to perform work for Futures
  that are cancelled

1.11.2  2011-08-12

  * offer: use Int.compare instead of subtraction to avoid
  integer overflow in ObjectOrder
  * offer: accept an empty offer list.  this is just Offer.never
  * Eval: persistent compilation targets

1.11.1  2011-08-05

  * offer/broker: fixes, simplifications - gets rid of thunked
  values on sends.  removing the infrastructure required to
  support this led to significant simplification.  lock the
  correct objects for broker events.  don't try to resolve
  identical objects in lock order.
  * offer: java support
  * hashing: actually return 64bit values from the 64bit hash
  functions; tests

1.11.0  2011-08-02

  * Introduce new util-codec module to contain various codecs.
  Primarily so that it can depend on apache commons-codec 1.5
  for base64 improvements over the sun one.

1.10.4  2011-07-29

  * Added TestLogging specs helper to util-logging.
  * Spools: like scala streams, but with deferred tails.

1.10.3  2011-07-27

  * add GZip string encoder

1.10.2  2011-07-18

  * Maintain a map of already visited objects incase someone
  creates a circular of config objects.
  * Make Duration hashable.
  * Promise.on{Success, Failure}: returned chained future.