We—the Akka committers—are pleased to be able to announce the availability of Akka 2.0.4.

This version contains a number of small bug fixes, for the full list of tickets closed see below, the most notable ones are

• fix a divide-by-zero bug in routers
• fix a wrap-around bug in HashedWheelTimer which would expire timeouts early
• stop using Unsafe.throwException to allow running on Android
• configurable worker pool size in remoting to allow running with fewer threads

Summary of Changes

2.0.4 is the result of a collaboration of 5 contributors and weighs in at 66 files changed, 339 insertions, 118 deletions. Please refer to the full git log at the end for the gory details.

Tickets closed

• 2447 – Backport fix for Router ArithmeticException: / by zero
• 2448 – Upgrade Netty from 3.5.3 to 3.5.4
• 2476 – 2.0.3 docs has broken links to typesafe.com
• 2532 – TypedActor busted after restart
• 2570 – Backport fix for wrong logic in Switch.whileOff to 2.0.4
• 2592 – DOC: 2.0.3 doc errata
• 2628 – java hellokernel sample: reflection error
• 2686 – AskTimeoutException using Patterns.ask(pingActorRef, message, Timeout.longToTimeout(Long.MAX_VALUE));
• 2691 – Backport Netty worker pool size
• 2706 – Stop using Unsafe.throwException since it doesn’t exist on Android

Akka is released under the Apache V2 license.

Website:

http://akka.io

Maven repository:

http://repo.akka.io/releases

Binary distribution:

http://download.akka.io/downloads/akka-2.0.4.tgz

http://download.akka.io/downloads/akka-2.0.4.zip

Documentation:

http://doc.akka.io/docs/akka/2.0.4/

http://doc.akka.io/api/akka/2.0.4/

Issue tracker:

http://www.assembla.com/spaces/akka/

Mailing list:

https://groups.google.com/group/akka-user

Git Shortlog

Björn Antonsson (2):

• Allow configuration of the number of threads created by Netty. #2691
• Change Netty configuration to better mimic Netty defaults. #2691

Björn Harrtell (1):

• Upgrade Netty from 3.5.3 to 3.5.4

Patrik Nordwall (5):

• Avoid ArithmeticException: / by zero in routers, see #2443
• Rename local val _routee, see #2442
• Avoid / by zero in SmallestMailboxRouter also, see #2442
• Correct logic in Switch.whileOff, see #2569
• Add test for Switch, see #2569

Roland (8):

• change version to 2.0.4-SNAPSHOT
• adapt release script to new repo.akka.io login
• make HashedWheelTimer tolerate wrap-arounds, see #2686
• adapt release script to new repo.akka.io login
• add comment explaining HWT test
• fix smartypants disabling python code
• fix various small things in the docs, see #2592
• Update version for release 2.0.4

Viktor Klang (7):

• Removing reference to Future.onTimeout
• #2476 - Fixing broken links to typesafe.com
• #2432 - turning off smarty pants so that our quotes don’t get mangled in code samples.
• Fixing #2532
• Adding OSS Sonatype releases to the list of repos for 2.0
• #2628 - make HelloActor and WorldActor public static classes
• #2706 - Switching to a type system subversion instead of Unsafe.throwException.

Happy hAkking!