Util 19.11.0

New Features

• util: Add initial support for JDK 11 compatibility. e6970ed1

• util-core: Created public method Closable.stopCollectClosablesThread that stops CollectClosables
  thread. a8260998

• util-core: Introduced Reader.fromIterator to create a Reader from an iterator. It is not
  recommended to call iterator.next() after creating a Reader from it. Doing so will affect the
  behavior of Reader.read() because it will skip the value returned from iterator.next.
  d1b42f4b

Runtime Behavior Changes

• util: Upgrade to caffeine 2.8.0 f35ae591

Breaking API Changes

• util-core: Add c.t.io.BufReader.readAll to consume a Reader[Buf] and concat values to a Buf.
  Replace c.t.io.Reader.readAll with Reader.readAllItems, the new API consumes a generic Reader[T],
  and return a Seq of items. a47a219b
• util-core: Moved c.t.io.Reader.chunked to c.t.io.BufReader.chunked, and Reader.framed to
  BufReader.framed. 459038f9
• util-core: Moved c.t.io.Reader.copy to c.t.io.Pipe.copy, and Reader.copyMany to
  Pipe.copyMany. 5562ebf3

Deprecations

• util-core: Mark c.t.io.BufReaders, c.t.io.Bufs, c.t.io.Readers, and c.t.io.Writers as
  Deprecated. These classes will no longer be needed, and will be removed, after 2.11 support is
  dropped. 844fe24d
• util-stats: Removed deprecated methods stat0 and counter0 from StatsReceiver. 5119e65c

Util 19.10.0

Runtime Behavior Changes

• util-core: When a computation from FuturePool is interrupted, its promise is
  set to the interrupt, wrapped in a j.u.c.CancellationException. This wrapper
  was introduced because, all interrupts were once CancellationExceptions. In
  RB_ID=98612, this changed to allow the user to raise specific exceptions as
  interrupts, and in the aid of compatibility, we wrapped this raised exception
  in a CancellationException. This change removes the wrapper and fails the
  promise directly with the raised exception. This will affect users that
  explicitly handle CancellationException. d95914f8

Bug Fixes

• util-core: Fixed bug in c.t.io.Reader.framed where if the framer didn't emit a List the
  emitted frames were skipped. aedc943e
• util-hashing: Fix a bug where partitionIdForHash was returning incosistent values w.r.t
  entryForHash in KetamaDistributor. c66080b6

Util 19.9.0

Runtime Behavior Changes

• util-app: Better handling of exceptions when awaiting on the c.t.app.App to close at
  the end of the main function. We Await.ready on this as the last step of
  App#nonExitingMain which can potentially throw a TimeoutException which was previously
  unhandled. We have updated the logic to ensure that TimeoutExceptions are handled accordingly.
  b17297c7
• util: Upgrade to Scala Collections Compat 2.1.2. d4117162

Breaking API Changes

• util-core: BoundedStack is unused and really old code. Delete it. eeb0e947
• util-logging: com.twitter.logging.ScribeHandler and com.twitter.logging.ScribeHandlers have
  been removed. Users are encouraged to use slf4j for logging. However, if a util-logging integrated
  ScribeHandler is still required, users can either build their own Finagle-based scribe client as
  in ScribeRawZipkinTracer in finagle-zipkin-scribe, or copy the old ScribeHandler
  implementation directly into their code. f4e56599

Util 19.8.1

New Features

• util: Enables cross-build for 2.13.0. d5d20cc3

Java Compatibility

• util-stats: In c.t.finagle.stats.AbstractStatsReceiver, the counter, stat and
  addGauge become final, override counterImpl, statImpl and addGaugeImpl instead.
  d5d20cc3

• util-core:
  c.t.concurrent.Offer.choose,
  c.t.concurrent.AsyncStream.apply,
  c.t.util.Await.all,
  c.t.util.Closable.sequence become available to java for passing varargs. d5d20cc3

• util-stats:
  c.t.finagle.stats.StatsReceiver.provideGauge and addGauge become available to java for
  passing varags. d5d20cc3

Breaking API Changes

• util-core: (not breaking) c.t.util.Future.join and c.t.util.Future.collect now take
  Iterable[Future[A]] other than Seq.d5d20cc3

• util-core: Revert the change above, in c.t.util.Future, collect, collectToTry and join
  take scala.collection.Seq[Future[A]]. e451e3b2

• util-core: com.twitter.util.Event#build now builds a Seq of events. Event#buildAny builds
  against any collection of events. d5d20cc3

Util 19.8.0

Breaking API Changes

• util-logging: The namespace forwarders for Level and Policy in com.twitter.logging.config
  have been removed. Code should be updated to use com.twitter.logging.Level and
  com.twitter.logging.Policy where necessary. Users are encouraged to use 'util-slf4j-api' though
  where possible. 6ab4aeac
• util-logging: The deprecated com.twitter.logging.config.LoggerConfig and associated
  classes have been removed. These have been deprecated since 2012. Code should be updated
  to use com.twitter.logging.LoggerFactory where necessary. Users are encouraged to use
  'util-slf4j-api' though where possible. 5d43773e

Runtime Behavior Changes

• util: Upgrade to Jackson 2.9.9. 0f0bcd44

Util 19.7.0

Breaking API Changes

• util-core: Removed deprecated c.t.concurrent.Scheduler methods usrTime,
  cpuTime, and wallTime. These were deprecated in 2015 and have no
  replacement. 0d77572

• util-core: Removed deprecated com.twitter.logging.config classes SyslogFormatterConfig,
  ThrottledHandlerConfig, SyslogHandlerConfig. These were deprecated in 2012 and have
  no replacement. Users are encouraged to use 'util-slf4j-api' where possible. 28d9de5

Util 19.6.0

Bug Fixes

• util-core: Fixed the behavior in c.t.io.Reader where reading from Reader\#empty fails to return
  a ReaderDiscardedException after it's discarded. 6ac4c601

Runtime Behavior Changes

• util-core: Use Local at callback creation for Future's interrupt handler rather than
  raiser's locals so that it is consistent with other callbacks. This functionality is
  currently disabled and can be enabled by a toggle (com.twitter.util.UseLocalInInterruptible)
  by setting it to 1.0 if you would like to try it out. 04cee8fb

Util 19.5.1

No Changes

Util 19.5.0

New Features

• util-app: Track the registration of duplicated Flag names. Currently, we print a warning to
  stderr but do not track the duplicated Flag names. Tracking them allows us to inspect and
  warn over the entire set. 4875552e

Util 19.4.0

19.4.0

New Features

• util-app: Improve usage of Flag.let by providing a Flag.letParse method
  0d9dded3