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Dmytro Vyazelenko edited this page Dec 17, 2024 · 133 revisions

2.0.0 (2024-12-17)

Breaking changes

  • org.agrona.UnsafeAccess was removed. Use org.agrona.UnsafeApi instead.

    Note: --add-opens java.base/jdk.internal.misc=ALL-UNNAMED JVM option must be specified in order to use org.agrona.UnsafeApi.

  • org.agrona.concurrent.MemoryAccess was removed. Use either the equivalent APIs provided by org.agrona.UnsafeApi or java.lang.invoke.VarHandle.

  • org.agrona.concurrent.SigIntBarrier was removed. Use org.agrona.concurrent.ShutdownSignalBarrier instead.

Changelog

  • [Java] Added API to compute CRC-32C (org.agrona.checksum.Crc32c) and CRC-32 (org.agrona.checksum.Crc32) checksums.

    Note: Requires --add-opens java.base/java.util.zip=ALL-UNNAMED JVM option at run time in order to use these classes.

  • [Java] stop allocating on addAll / removeAll on ObjectHashSet. (#308)

  • [Java] Run Mockito as Agent, i.e. fix the following warning.

  • [Doc] Remove reference to java 8 (#304)

  • [Gradle] Disable auto detection of JVMs to force a specific JVM for test execution in CI.

  • [Gradle] Use Gradle's version catalog feature for declaring dependencies.

  • [Java] Add concurrent tests for getAndAdd and getAndSet operations.

  • [Java] Improve RingBuffer tests by reading one message at a time and minimizing the number of valid states.

  • [Java] Fail build on JavaDoc errors.

  • [Java] Use JUnit BOM.

  • [Java] Upgrade to Gradle 8.11.1.

  • [Java] Upgrade to Checkstyle 10.21.0.

  • [Java] Upgrade to ByteBuddy 1.15.11.

  • [Java] Upgrade to bnd 7.1.0.

  • [Java] Upgrade to Shadow 8.3.5.

  • [Java] Upgrade to JUnit 5.11.4.

  • [Java] Upgrade to Guava TestLib 33.4.0-jre.

1.23.1 (2024-10-01)

  • [Java] Fix Object2IntHashMap#merge resizing the map while updating an existing key.

1.23.0 (2024-08-23)

Breaking changes

  • JDK 17 is required for compiling and running!
  • Removed NioSelectedKeySet and the corresponding TransportPoller.selectedKeySet field.
  • Removed MappedResizeableBuffer class to avoid having to open an internal JDK module (i.e. --add-opens java.base/sun.nio.ch=ALL-UNNAMED).
  • Removed RecordBuffer class.

Changelog

  • [Java] Improved documentation for the BackoffIdleStrategy. #297
  • [Java] Resolve pid using ProcessHandle.current().pid().
  • [Java] Use Thread.onSpinWait().
  • [Java] Use invokeCleaner without MethodHandles.
  • [Java] Remove Selector hacks in favor of the new java.nio.channels.Selector.selectNow(Consumer<SelectionKey>) API.
  • [Java] Upgrade to Gradle 8.10.
  • [Java] Upgrade to ByteBuddy 1.15.0.
  • [Java] Upgrade to Shadow 8.3.0.
  • [Java] Upgrade to bnd 7.0.0.
  • [Java] Upgrade to Mockito 5.12.0.

1.22.0 (2024-08-01)

  • [Java] Improve performance of IntHashSet via avoiding the fill operation by using 0 as MISSING_VALUE.
  • [Java] Restore thread safety by overriding missing mutating operations in ConcurrentCountersManager.
  • [Java] Remove volatile read for FREE_FOR_REUSE_DEADLINE_OFFSET in CountersManager.
  • [Java] Upgrade to ByteBuddy 1.14.18.
  • [Java] Upgrade to Guava TestLib 33.2.1-jre.
  • [Java] Upgrade to JUnit 5.10.3.

1.21.2 (2024-06-04)

  • [Java] Fix {Int,Long}2ObjectCache. (#294)
  • [Java] ErrorLogReader: Do not crash when reading partial or corrupted error messages. Attempt to recover last error message when length is out of bounds.
  • [Java] SnowflakeIdGenerator: Increment sequence if the clock is not advancing or going backwards.
  • [Java] Fix build on JDK 23-ea caused by deprecation in Unsafe, i.e. https://openjdk.org/jeps/471.
  • [CI] Split the build into slow and fast, i.e. run concurrency tests only during slow build.
  • [Java] Upgrade to ByteBuddy 1.14.17.
  • [Java] Upgrade to Guava TestLib 33.2.0-jre.

1.21.1 (2024-03-29)

  • [Java] Fix Javadoc copyright year range.
  • [Java] Fix JDK 22 javadoc URL.
  • [CI] Enable JDK 23-ea build.
  • [Java] Upgrade to ASM 9.7.
  • [Java] Upgrade to ByteBuddy 1.14.13.

1.21.0 (2024-03-14)

  • [Java] Use -XX:+EnableDynamicAgentLoading on JDK 21+.
  • [CI] Add Mac M1 to the build matrix.
  • [CI] Build PRs against merge commit.
  • [CI] Action updates.
  • [Java] Upgrade to JUnit 5.10.2.
  • [Java] Upgrade to Versions 0.51.0.
  • [Java] Upgrade to ByteBuddy 1.14.12.
  • [Java] Upgrade to Guava TestLib 33.1.0-jre.

1.20.0 (2023-11-02)

  • Add Reference ID, a new metadata field, to counters in the value padding.
  • Suppress warnings about Unsafe APIs being deprecated for removal in JDK 22.
  • Enable dynamic agent loading on JDK 22 + run ByteBuddy in zthe experimental mode.
  • CI: Use JDK 21 GA, drop JDK 11, and add JDK 22-ea.
  • Fix JavaDoc link for JDK 21 GA.
  • Move bnd into bundle section to make it forward compatible with the next major version of the plugin.
  • Upgrade to ByteBuddy 1.14.9.
  • Upgrade to Guava TestLib 32.1.3-jre.
  • Upgrade to ASM 9.6.
  • Upgrade to Versions 0.49.0.

1.19.2 (2023-09-01)

  • Add missing bounds check to AbstractMutableDirectBuffer#getInt(int, java.nio.ByteOrder) (#285)
  • Upgrade to ByteBuddy 1.14.7.

1.19.1 (2023-08-09)

  • Fix NPE in SigInt.java (#283)
  • Upgrade to JMH 1.37.
  • Upgrade to Guava TestLib 32.1.2-jre.
  • Upgrade to JUnit 5.10.0.

1.19.0 (2023-07-19)

  • Update BiInt2ObjectMap to support null values and add methods to get close to feature parity with Java 8 collections.
  • Restore the original behavior around the signal handling by not delegating to the previously registered handler.
  • Add MarkFile method to handle the creation of link files.
  • Upgrade Versions to 0.47.0
  • Upgrade Guava to 32.1.1-jre
  • Update ByteBuddy to 1.14.5

1.18.2 (2023-06-08)

  • Fix IntHashSet#retainAll(IntHashSet) and IntHashSet#removeIfInt which were skipping removal of some elements if the chain compaction moved them to the beginning of the array.
  • JDK 21-ea warning fixes.
  • Upgrade to ByteBuddy 1.14.4.
  • Upgrade to JUnit 5.9.3.
  • Upgrade to ASM 9.5 for JDK 21-ea support.
  • Upgrade to Shadow 8.1.1.
  • Upgrade to Gradle 8.1.1.

1.17.2 (2023-06-08)

  • Fix IntHashSet#retainAll(IntHashSet) and IntHashSet#removeIfInt which were skipping removal of some elements if the chain compaction moved them to the beginning of the array.

1.18.1 (2023-04-17)

  • Fix AbstractMutableDirectBuffer#putStringAscii* methods when invoked with the null value (i.e. null reference) in which case they were overwriting the first four bytes of the buffer by writing the zero length at the wrong offset.
  • Remove address alignment of the underlying native ByteBuffer from the ExpandableDirectByteBuffer class as this might break the existing code that does not handle the wrapAdjustment() properly.
  • Avoid allocation when returning an empty String from the AbstractMutableDirectBuffer#getString* methods.

1.18.0 (2023-03-29)

  • Add buffer alignment optimisations and checks (STRICT_ALIGNMENT_CHECKS). PR #267.
  • Add missing copy constructors on maps. PR #275.
  • Add implementation of DataInput interface that reads from DirectBuffer. PR #274.
  • Fix shut down signal barrier jvm signal not called. PR #271.
  • Add CodeQL workflow for GitHub code scanning. PR #268.
  • Allow ExpandableDirectByteBuffer to grow up to 2147483584 bytes, i.e. the last aligned value to which Alignment can be added without causing an overflow.
  • Add align methods for longs.
  • Make map/unmap by address work on JDK 20.
  • Rename SystemUtil.isX86Arch to isX64Arch.
  • Change algorithm for rehash so bounds check is done on loop level to help optimiser.
  • Eliminate int vs long comparison in IoUtil.mapNewFile.
  • Declare NumberFormatException on Strings.parseIntOrDefault.
  • Fix ExpandableArrayBuffer and UnsafeBuffer toString when using a raw array.
  • Add CountersManager.toString.
  • Fix HighResolutionTimer race conditions.
  • Exit early if the DistinctErrorLog buffer is full.
  • Invoke the EpochClock.time outside the synchronized block.
  • Fix ExpandableArrayBuffer.checkLimit regression, i.e. grow capacity if the limit exceeds current capacity.
  • Do not use 128 bytes as a minimum length when growing the buffer, i.e. allow smaller buffers to grow slower.
  • Upgrade to ByteBuddy 1.14.3.
  • Upgrade to JUnit 5.9.2
  • Upgrade to Mockito 4.11.0.
  • Upgrade to Gradle 7.6.
  • Upgrade JMH to 1.36.
  • Upgrade to versions plugin 0.46.0.
  • Upgrade to JCStress 0.16
  • Upgrade BND to 6.4.0
  • Add mockito-inline dependency.

1.17.1 (14 Sep 2022)

  • Correct spelling of DynamicPackageOutputManager.

1.17.0 (14 Sep 2022)

  • Add DynamicPackageOutputManager so code generation can target multiple Java packages. PR #266.
  • Eliminate boxing operations on collections by providing non-boxing alternatives. PR #265.
  • Add getOrDefault non-boxing implementations to collections. PR #264.
  • Add Javadoc note about freeing of aligned buffers which have been split. Issue #263.
  • Fix for Int2ObjectCache.get can return unmatched value when full. Issue #262.
  • Upgrade to ByteBuddy 1.12.16.
  • Upgrade to Mockito 4.8.0.
  • Upgrade to JUnit 5.9.0.
  • Upgrade to Gradle 7.5.1.

1.16.0 (27 Jun 2022)

  • Add optimised versions of compute on maps. PR #259.
  • Add Object2IntCounterMap. PR #257.
  • Fix Int2ObjectCache/Int2ObjectHashMap.containsValue() to perform equality based on the value stored in the map.
  • Ensure that Object2*HashMaps and ObjectHashSet always check equality using the value in the map and not vice versa. PR #253.
  • Add primitive unboxed for-each methods to primitive maps. PR #254.
  • Fix race on MarkFile.close with unmapping files.
  • Upgrade to BND 6.3.1.
  • Upgrade to ByteBuddy 1.10.12.
  • Upgrade to Mockito 4.6.1.

1.15.2 (16 May 2022)

  • Improved error messages for Counters.
  • Perform equality checks using the keys/values stored in the map, i.e. add support for the asymmetric keys which can match on multiple types. For an example see the CharSequenceKey from the test package.
  • Fix MapEntry.getValue to return current value after setValue was called.
  • Various fixes for EntrySet/MapEntry across different map implementations.

1.15.1 (14 Apr 2022)

  • Check error buffer has sufficient capacity before initial access.
  • Fill memory mapped file with zeros outside try-with-resources block for channel so allocation can be freed sooner.
  • Upgrade to JMH 1.35.
  • Upgrade to ByteBuddy 1.12.9.
  • Upgrade to Gradle 7.4.2.

1.15.0 (15 Mar 2022)

  • Fix bug with buffer expansion with putAsciiInt / putAsciiLong methods. PR #252.
  • Add MemoryAccess for abstract access to memory fences.
  • Treat warnings as errors during build.
  • Hide JCStress output unless there is an error.
  • Upgrade to guava-testlib 31.1-jre.
  • Upgrade to BND 6.2.0.
  • Upgrade to Versions 0.42.0.
  • Upgrade to Shadow 7.1.2.
  • Upgrade to JMH 1.34.
  • Upgrade to Mockito 4.4.0.
  • Upgrade to ByteBuddy 1.12.7.
  • Upgrade to JCStress 0.15.
  • Upgrade to Checkstyle 9.3.
  • Upgrade to JUnit 5.8.2.
  • Upgrade to Gradle 4.7.1.

1.14.0 (23 Nov 2021)

  • Check for thread being interrupted after calling ErrorHandler in AgentInvoker and AgentRunner so they can stop running.
  • Remove 'Serializable' from collections. It was never implemented correctly.
  • Upgrade to Mockito 4.1.0.
  • Upgrade to ByteBuddy 1.12.2.
  • Upgrade to BND 6.1.0.

1.13.1 (21 Nov 2021)

  • Fix a bug in AsciiEncoding#digitCount(int) and AsciiEncoding#digitCount(long) methods which resulted in wrong value being returned for 0 input, i.e. both methods now return 1 when zero is the input value. PR #251.

1.13.0 (17 Nov 2021)

  • Check for numeric overflow when parsing numbers in ASCII.
  • Fix bounds checks when writing numbers in ASCII to buffers.
  • Improve performance for the parsing and serialisation of ints and longs in ASCII in buffer implementations.
  • Add methods to SBE message interfaces for tracking buffer position limit.
  • Rethrow subclasses of Error from Agents so the JVM can handle them after logging.
  • Avoid static fields on Unsafe to better support Android.
  • Remove final declaration from AsciiSequenceView. PR #242.
  • Upgrade to guava-testlib 31.0.1-jre.
  • Upgrade to Shadow 7.1.
  • Upgrade to BND 6.0.0.
  • Upgrade to Checkstyle 9.1.
  • Upgrade to JUnit 5.8.1.
  • Upgrade to JMH 1.33.
  • Upgrade to Mockito 4.0.0.
  • Upgrade ByteBuddy to 1.12.1.
  • Upgrade to Gradle 7.2.

1.12.0 (04 Aug 2021)

  • Tidy up of spelling and grammar.
  • Fail the build if Gradle build file has warnings.
  • MutableDirectBuffer methods for putString accepting CharSequence. #240
  • jcstress added. #237
  • RingBuffer capacity validation and fixes. #239
  • Windows added to the build matrix.
  • Upgraded to Gradle 7.1.1.
  • Upgraded to Mockito 3.11.2.
  • Upgraded to ByteBuddy 1.11.9.

1.11.0 (11 Jun 2021)

  • Allow for TransportPoller#ITERATION_THRESHOLD to be set from system property.
  • Relocate shadowed ByteBuddy classes in fat JAR.
  • Improve the performance of writing int and long values as ASCII in buffers.
  • Add support for @null property values when reading system properties.
  • Improve hash function for hash based collection.
  • Reduce callstack when unmapping buffers.
  • Move read of clock to inside lock when creating a new entry in the distinct error log.
  • Verify counter is in allocated state when being freed.
  • Add lock-less implementation for distributed and concurrent unique id generation based on Twitter Snowflake algorithm.
  • Upgrade to Mockito 3.11.1.
  • Upgrade to Versions 0.39.0.
  • Upgrade to JUnit 5.7.2.
  • Upgrade to JMH 1.32.
  • Upgrade to ByteBuddy 1.11.2.
  • Upgrade to Shadow 7.0.0.
  • Upgrade to Gradle 7.0.2.

1.10.0 (15 Apr 2021)

  • Handle null error handler with CloseHelper.
  • Support NioSelectedKeySet.contains and NioSelectedKeySet.remove to be more efficient on Java 11+.
  • Add Java 17-ea to the build matrix.
  • Improve Javadoc.
  • Detect thread interrupt after an exception in Agent.doWork.
  • Fix race condition with OffsetEpochNanoClock used across threads. PR #220.
  • Provide the ability to thread dump to a StringBuilder.
  • Add ability to query for number of remaining available counters in a CountersManager.
  • Upgrade to Guava testlib 30.1.1-jre.
  • Upgrade to Versions 0.38.0.
  • Upgrade to JMH 1.29.
  • Upgrade to BND 5.3.0.
  • Upgrade to JUnit 5.7.1.
  • Upgrade to ByteBuddy 1.10.22.
  • Upgrade to Checkstyle 8.39.
  • Upgrade to Mockito 3.9.0.
  • Upgrade to Gradle 6.8.3.

1.9.0 (21 Dec 2020)

  • Record errors as distinct in the DistinctErrorLog with unique messages.
  • Add controlled read methods to ring buffers. Issue #227.
  • Provide the ability to control the order of precedence when loading system properties. Issue #226.
  • Add Java 16 EA to build matrix.
  • Upgrade to Gauva tests 30.1-jre.
  • Upgrade to JUnit 4.13.1 for vintage engine.
  • Upgrade to Checkstyle 8.38.
  • Upgrade to ByteBuddy 1.10.18.
  • Upgrade to Versions 0.36.0.
  • Upgrade to Mockito 3.6.28.
  • Upgrade to JMH 1.27.
  • Upgrade to Checkstyle 8.36.2.
  • Upgrade to Gradle 6.7.1.

1.8.0 (07 Oct 2020)

  • Resolved issues with collection classes which implement Serializable. Issue #223.
  • Improve javadoc and clean up warnings on Java 15 build.
  • Use ProcessHandle to get PID when Java 9+.
  • Add Java 15 to build matrix.
  • Add MessageDecoderFlyweight.appendTo(StringBuilder) to interface. PR #220.
  • Upgrade to Shadow 6.1.0.
  • Upgrade to ByteBuddy 1.10.17.
  • Upgrade to Mockito 3.5.13.

1.7.2 (18 Sep 2020)

  • Fix issue with how direct buffers expand when initial length is set to be 0 or 1.
  • Improve javadoc for ArrayUtil and DeadlineTimerWheel.
  • Upgrade to JUnit 5.7.0.
  • Upgrade to Version 0.33.0.

1.7.1 (06 Sep 2020)

  • Fix memory ordering semantics for late joining a broadcast buffer.
  • Catch Throwable rather than RuntimeException in composite Agents to be consistent with invokers and runners.
  • Upgrade to Versions 0.30.0.
  • Upgrade to Checkstyle 8.36.
  • Upgrade to JMH 1.25.2.
  • Upgrade to Mockito 3.5.10.

1.7.0 (28 Aug 2020)

  • Improve validation and bounds-checking when using counters.
  • Add registration id and owner id to counters.
  • Add javadoc to explain relaxed memory order semantics on queues. Issue #216.
  • Return this for a fluent API with AtomicCounter.appendToLabel
  • Fix map capacity calculation. Issue #215.
  • Unmap MarkFile in case of an exception.
  • Improving boundary case checking when parsing numbers in direct buffers.
  • Throw exceptions for parsing numbers with AsciiEncoding so it behaves like Integer.parseInt. PR #214.
  • Change build script to help IDEA get the dependencies for generated code.
  • Upgrade to Gradle 6.6.1.
  • Upgrade to Mockito 3.5.7.
  • Upgrade to JMH 1.25.1.
  • Upgrade to ByteBuddy 1.10.14.
  • Upgrade to Checkstyle 8.35.
  • Upgrade to BND 5.1.2.
  • Upgrade to Versions 0.29.0.

1.6.0 (07 Jul 2020)

  • Check for integer under and over flow when parsing numbers with AsciiEncoding.
  • Allow for wrapping zero length direct buffers at capacity. Issue #211.
  • Upgrade to Shadow 6.0.0.
  • Upgrade to BND 5.1.1.
  • Upgrade to ByteBuddy 1.10.13.
  • Upgrade to Checkstyle 8.34.
  • Upgrade to Gradle 6.5.1.

1.5.1 (27 May 2020)

  • Fix race conditions with queues for size, isEmpty, and peek methods.

1.5.0 (21 May 2020)

  • Fix warning message when closing AgentRunner.
  • Add ability to update counter metadata key. PR #209.
  • Add alias for each IdleStrategy.
  • Add CountersReader.getCounterTypeId(int).
  • Change false sharing protection to be forwards compatible with Java 15 class layout.
  • OffsetEpochNanoClock as an allocation free alternative EpochNanoClock. PR #206.
  • Improve performance of forEach and iterators on collections.
  • Have array backed direct buffer not print their content in toString() methods.
  • Upgrade to JUnit 5.6.2.
  • Upgrade to javadoc-links 5.1.0.
  • Upgrade to ByteBuddy 10.10.0.
  • Upgrade to Gradle 6.4.1.

1.4.1 (28 Mar 2020)

  • Supporting building and running on Java 14.
  • Add decrement() and decrementOrdered() methods to AtomicCounter.
  • Add Thread.onSpinWait() when retrying in ManyToManyConcurrentArrayQueue offer and poll.
  • Upgrade to Gradle 6.3.
  • Upgrade to BND 5.0.1.
  • Upgrade to JUnit 5.6.1.
  • Upgrade to Mockito 3.3.3.

1.4.0 (26 Feb 2020)

  • Check for thread interrupt in AgentRunner after idling so agent can be closed immediately.
  • Add the ability to close a CountedErrorHandler.
  • Add BufferUtil.free(ByteBuffer) to free direct ByteBuffers. PR #205.
  • Migrate from Gradle maven to maven-publish.
  • Allow Maps with a cached iterator to work when calling toArray on entries. PR #202.
  • Allow CloseHelper to work on expanded type range from List to Collection of Closable.
  • Upgrade to Gradle 6.2.1.
  • Upgrade to Versions 0.28.0.
  • Upgrade to Mockito 3.3.0.
  • Upgrade to BND 5.0.0.
  • Upgrade to JMH 1.23.

1.3.0 (21 Jan 2020)

  • Add RingBuffer.tryClaim implementations for zero copy semantics when encoding into ring buffers. PR #199.
  • Allow for configurable Charset when encoding exceptions in DistinctErrorLog.
  • Don't read underlying buffer in AtomicCounter implementations for toString() when closed to help avoid segfaults.
  • Expand the methods in MutableInteger and MutableLong to be better single-threaded substitutes for AtomicInteger and AtomicLong. PR #198.
  • Filter dependencies from agent shadow POM.
  • Upgrade to JUnit 5.6.0.

1.2.0 (09 Jan 2020)

  • Fix concurrency issue with enabling and disabling HighResolutionTimer.
  • Add isLinux and isWindows to SystemUtil.
  • Refinements to alignment checking agent.
  • Move CI to GitHub Actions.
  • Upgrade to JUnit 5.6.0-RC1.
  • Update to Guava TestLib 28.2-jre.
  • Upgrade to Checkstyle 8.28.
  • Upgrade to Mockito 3.2.4.
  • Upgrade Gradle 6.0.1.
  • Upgrade to ByteBuddy 1.10.5.
  • Upgrade to javadoc-links 4.1.6.

1.1.0 (18 Nov 2019)

  • Allow for buffer reference being null in AsciiSequenceView. PR #190.
  • Add DelegatingErrorHandler.
  • Add method to advance a cached clock.
  • Provide the ability to add a suffix to a counter label after allocation.
  • Provide singleton versions of clocks.
  • Allow for better inlining on direct buffer implementations.
  • Upgrade to javadoc-links 4.1.4.
  • Upgrade to Hamcrest 2.2.
  • Upgrade to Checkstyle 8.26.
  • Upgrade to ByteBuddy 1.10.2.
  • Upgrade to Shadow 5.2.0.

1.0.11 (06 Nov 2019)

  • Add the ability to update a counter label on the AtomicCounter API for the owning user.
  • Provide unboxed implementation of setValue on primitive map iterators.

1.0.10 (31 Oct 2019)

  • Don't expand ExpandableRingBuffer when space to the end is insufficient but sufficient space remains after padding and wrapping. PR #187.

1.0.9 (25 Oct 2019)

  • Improve javadoc for HighPrecisionClock.
  • Reduce the amount of false sharing padding on concurrent data structures to save on memory footprint.
  • Implement AutoClosable for LoggingErrorHandler so it can be closed to help avoid seg faults with unmapped files.
  • Upgrade to javadoc-links 4.1.3.
  • Upgrade to Checkstyle 8.25.
  • Upgrade to Gradle 5.6.3.

1.0.8 (04 Oct 2019)

  • Provide singleton instances for NoOpLock and stateless idle strategies to save on allocation.
  • Open files as read only when mapping as read only. PR #185.
  • Allow partial reset of NioSelectedKeySet so that some items may be later retried. PR #183.
  • Allow wrapping of arrays less then minimum default length for primitive array lists. Issue #182.
  • Zero out metadata for counters after use to avoid potential reuse issues.
  • Provide default constructors for idle strategies so they can be dynamically loaded more easily.
  • Upgrade to javadoc-links 4.1.2.
  • Upgrade to Mockito 3.1.0.
  • Upgrade to guava-testlib 28.1.
  • Upgrade to Gradle 5.6.2.

1.0.7 (12 Aug 2019)

  • Add long variants of BitUtil.isPowerOfTwo() and BitUtil.findNextPositivePowerOfTwo().
  • Change tick resolution in DeadlineTimerWheel to be a long rather than int to allow for time unit to be in nanoseconds with tick resolution to be in seconds.
  • Correct implementation of CollectionUtil.validatePositivePowerOfTwo(). Issue #179.
  • Don't update error counters in agent runners and invokers when not running to closed to avoid segfaults.
  • Upgrade to javadoc-links 3.8.2.

1.0.6 (31 Jul 2019)

  • Improvements to DeadlineTimerWheel which include ability to clear, set current tick time, support a greater time range and performance improvements by reducing indirection.
  • Fix IntArrayQueue so the tail wraps correctly when poll and offer operations are interleaved.
  • Throw exception when parsing invalid numbers rather than return zero with AsciiEncoding. Issue #178.

1.0.5 (29 Jul 2019)

  • Fix missing public constructors for ExpandableRingBuffer.

1.0.4 (29 Jul 2019)

  • Fix IntArrayList.hashCode() method to be compatible with List.hashCode().
  • Add IntArrayQueue to store a FIFO list of primitives without boxing.
  • Add ExpandableRingBuffer to support the temporary storage of messages in a FIFO manner.
  • Add OSGi manifest headers to JAR. PR #176.
  • Add missing Javadoc.
  • Update licence references to https and an a contributing page.
  • Upgrade to Checkstyle 8.23.
  • Upgrade to javadoc-links 3.8.1.
  • Upgrade to Gradle 5.5.1.

1.0.3 (12 Jul 2019)

  • Reduce allocation for closeAll operations.
  • Correct generic type check for put on Object2Object maps.
  • Use shifts rather than divide operations where appropriate to reduce startup costs.
  • Upgrade to Shadow 5.1.0.
  • Upgrade to Checkstyle 8.22.
  • Upgrade to guava-testlib 28.0-jre.
  • Upgrade to javadoc-links 3.7.5.

1.0.2 (12 Jun 2019)

  • Improve bounds checks on direct buffers.
  • Add ability to append an ASCII string from direct buffers to an Appendable without allocation.
  • Add ability to close a list or var args of Closeables. PR #174.
  • Upgrade to Mockito 2.28.2.
  • Upgrade to Checkstyle 8.21.
  • Upgrade to javadoc-links 3.6.6.

1.0.1 (25 May 2019)

  • Javadoc improvements.
  • Use a specific exception to indicate number format exceptions in ASCII. PR #171.
  • Fix bug with inverted logic which meant HighResolutionTimer did not enable correctly.
  • Upgrade to javadoc-links 3.6.4 to allow for building offline.
  • Upgrade to hamcrest 2.1.

1.0.0 (03 May 2019)

  • Remove usage of Unsafe from cached clocks.
  • Add accessors for AsciiViewSequence to make it more useful. PR #170.
  • Add ability to pretty print binary buffers in ASCII. PR #169.
  • Grow backing array for TransportPoller by golden ratio to be more GC friendly.
  • Add constructors for initialising AtomicLongPosition in tests.
  • Improve Javadoc.
  • Upgrade to io.freefair.javadoc-links 3.2.1.
  • Upgrade to Checkstyle 8.20.
  • Upgrade to Mockito 2.27.0.
  • Upgrade to Gradle 5.4.1.

0.9.35 (28 Mar 2019)

  • Reduce Java 11 module warnings.
  • Change HighResolutionTimer hack to use a more Java 11 friendly approach and allow faster operation on Windows.
  • Add the ability to apply mapping mode when mapping files.
  • Fix Javadoc links so they use HTTPS and work with OpenJDK and Java 11.
  • Upgrade Checkstyle DTD and checkstyle method Javadoc.
  • Upgrade to Mockito 2.25.1.
  • Upgrade to Gradle 5.3.1.

0.9.34 (10 Mar 2019)

  • Include links in generated Javadoc.
  • Capture scale of unknown reference size when compressed oops are used.
  • Avoid reloading of fields in concurrent data structures when intermixed with volatile loads for improved performance.
  • Provide SystemUtil.tmpDirName().
  • Enable the setting of mapping mode on MappedResizableBuffer so mappings can be read-only. Issue #168.
  • Improve SemanticVerision class with toString() method and allow a 0 patch version.
  • Upgrade to Mockito 2.25.0.
  • Upgrade to Checkstyle 8.18.
  • Upgrade to Gradle 5.2.1 and remove support for OSGI as it is now deprecated.
  • Upgrade to Shadow 5.0.0.

0.9.33 (16 Feb 2019)

  • Be more specific about synchronizing on latches in ShutdownSignalBarrier. PR #167.
  • Add SemanticVersion for composing semantic version levels into an int.
  • Add ability to disable array printing on direct buffers during debugging via a system property. PR #166.

0.9.32 (05 Feb 2019)

  • Add Automatic-Module-Name to help enable modular programs to use Agrona.
  • Upgrade to Mockito 2.24.0.
  • Upgrade to Byte Buddy 1.9.7.

0.9.31 (30 Jan 2019)

  • Fix issue with merging properties from files into system properties. Issue #164.
  • Add support for ASCII encoding natural numbers into direct buffers. PR #163.
  • Update Javadoc on use of direct buffers to reflect usage from a state perspective. Issue #161.
  • Add SystemUtil.threadDump() to allow for the programmatic triggering of a JVM thread dump.
  • Upgrade to Checkstyle 8.17.

0.9.30 (21 Jan 2019)

  • Allow multiple ShutdownSignalBarriers to be registered in the same JVM.
  • Add toString method to bi int/long maps.
  • Initialise BroadcastReceiver to latest position so that catch up is O(1).
  • Upgrade to Shadow 4.0.4.

0.9.29 (06 Jan 2019)

  • On interrupt call the close failed action handler in 'AgentRunner'.
  • Fix issue with unblocking a full ring buffer. Issue #160.
  • Upgrade to Checkstyle 8.16.

0.9.28 (16 Dec 2018)

  • Warnings clean up in code base.
  • Upgrade to Checkstyle 8.15.
  • Upgrade to Guava testlib-27.0.1.
  • Upgrade to Gradle 4.10.3.

0.9.27 (25 Nov 2018)

  • Cache PID so it is only looked up once.
  • Check if wrapping the same buffer in direct buffers to avoid the GC write barrier where possible.
  • Added AsciiSequenceView for windowing over a DirectBuffer to read it as a sequence of ASCII characters.
  • Upgrade to Shadow 4.0.3.
  • Update to Mockito 2.23.4.
  • Update to Byte Buddy 1.9.3.

0.9.26 (29 Oct 2018)

  • This release is the first to support building and running on Java 11.
  • Provide access to common SBE methods in flyweight interfaces in a consistent manner.
  • Add a matrix of Java 8 and 11 builds for OpenJDK and Oracle JDK on Travis.
  • Make iterators and collections within maps public so that iteration can occur on the primitive types without down-casting.
  • Upgrade to guava-testlib:27.0 for collection conformance.
  • Upgrade to Checkstyle 8.14.
  • Update to Mockito 2.23.0.
  • Update to Byte Buddy 1.9.0.

0.9.25 (05 Oct 2018)

  • Simplified BitUtil.align which may give a small performance gain.
  • Improve construction and expansion performance of Object2ObjectHashMap and ObjectHashSet.
  • Add build to Travis.
  • Upgrade to Shadow 4.0.0.
  • Upgrade to Gradle 4.10.1.

0.9.24 (12 Sep 2018)

  • Avoid starvation of later Agents when DynamicCompositeAgent is used and one throws an exception.
  • Fix so the source compiles under Java 11.
  • Upgrade to Byte Buddy 1.8.21.
  • Upgrade to Mockito 2.22.0.
  • Upgrade to Gradle 4.10.

0.9.23 (18 Aug 2018)

  • Add support for maps with null values. PR #154.
  • Fix memory leak with calling remove on entries iterator on maps keyed by object.
  • Fix issue with RingBuffers so they can work in big endian CPUs.
  • Upgrade to guava-testlib 25.1.
  • Upgrade to Checkstyle 8.12.
  • Upgrade to Byte Buddy 1.8.15.
  • Upgrade to Mockito 2.21.0.

0.9.22 (30 Jul 2018)

  • Added ErrorLogReader.hasErrors().
  • If no active timers, then advance currentTick on poll if necessary. Add DeadlineTimerWheel.resetStartTime() method support.
  • Override write and flush methods on DirectBufferOutputStream to remove the unneeded IOException.
  • Correct resulting offset set in bounds check when writing into a DirectBufferOutputStream. Issue #150.
  • Add References helper method that can be intrinsified. PR #149.
  • Upgrade to Gradle 4.9.
  • Upgrade to Mockito 2.20.1.

0.9.21 (16 Jul 2018)

  • Provide a capacity method to all map types.
  • Improve efficiency of rehash as maps grow.
  • Null out keys in maps that have an object reference for key to avoid memory leak on removal.
  • Upgrade to Mockito 2.19.1.
  • Upgrade to Byte Buddy 1.8.13.
  • Upgrade to guava-testlib 23.5.

0.9.20 (07 Jul 2018)

  • Remove the use of sun.misc.Unsafe from tests so that they no longer need to be forked.
  • Perform a single scan over existing errors in the DistinctErrorLog to reduce the significant allocation of walking stack traces.
  • Fix issue with putting Integer.MIN_VALUE rather than Long.MIN_VALUE into a buffer as ASCII for the Long.MIN_VALUE. Issue #145.
  • Upgrade to Checkstyle 8.11.
  • Upgrade to Gradle 4.8.1.

0.9.19 (03 Jul 2018)

  • Add the ability to provide an expandable MutableDirectBuffer to CopyBroadcastReceiver.
  • Keep reference to underlying ByteBuffer in AtomicCounter, UnsafeBufferPosition, and UnsafeBufferStatusIndicator.
  • Fix putBytes() methods in MappedResizeableBuffer. PR #144.
  • Resent thread interrupt flag in SleepingMillisIdleStrategy.
  • Upgrade to Byte Buddy 1.8.10.
  • Upgrade to Mockito 2.19.0.
  • Upgrade to Checkstyle 8.10.1.

0.9.18 (04 May 2018)

  • Allow caller to control AgentRunner.close() timeout behaviour. PR #141.
  • Handle race condition between File.length() and FileChannel.size() in mark files. PR #140.
  • Upgrade to Shadow 2.0.4.
  • Upgrade to Checkstyle 8.10.

0.9.17 (29 Apr 2018)

  • Provide HMTL 5 version to javadoc under Java 10 to avoid warning and fix HTML tags.
  • Use Constructor for dynamically creating instances to avoid deprecated warning under Java 10.
  • Remove compile time dependency on sun.nio.ch.FileChannelImpl to support building under Java 10.
  • Upgrade to Gradle 4.7.

0.9.16 (23 Apr 2018)

  • Remove dependency on sun.nio.ch.DirectBuffer for better Java 10 support.
  • Improve the construction efficiency of ManyToManyConcurrentArrayQueue.
  • Add Object2ObjectHashMap as an open addressing option for a cache friendly alternative to HashMap.
  • Provide option to allocate iterators and entries for maps for conformance.
  • Add Guava conformance test suite for maps/sets and fix compliance issues.
  • Add AsciiEncoding.parseInt() and parseLong() for parsing integer values from a CharSequence without allocation.
  • Include generated classes in the Javadoc.
  • Upgrade to Mockito 2.18.3.
  • Upgrade to ByteBuddy 1.8.5.
  • Upgrade to Checkstyle 8.9.
  • Upgrade to Gradle 4.6.
  • Upgrade to Shadow 2.0.3.

0.9.15 (09 Mar 2018)

  • Add fast unordered remove methods to primitive arrays lists. PR #135.
  • Make collections non final so they can be sub-classed. Issue #133.

0.9.14 (28 Feb 2018)

  • Improve error message for unaligned buffer access. PR #130

0.9.13 (23 Feb 2018)

  • Add CountersReader.forEach method that gives basic label information and the counter value.
  • Improve Agents error handling in aggressive shutdown scenarios.
  • Add SystemUtil.getPid().
  • Add MarkFile to indicate the presence of a running service with supporting meta information.
  • Add toString methods to idle strategies for debugging.
  • Fix bug with IntArrayList.addAt() method. PR #125.
  • Change CountersManager to allow for a cool down period before a counter is reused.
  • Remove unnecessary throws clauses where APIs could do so.
  • Honour List equals and hash code implementations for primitive lists.
  • Improve collections iterators to be more compatible with standard collections and reduce footprint. Some of the changes are breaking as IntIterator has been replaced by inner classes.
  • Provide the ability to lookup a deadline for a given timer id on the DeadlineTimerWheel. Issue #123.
  • Return a boolean to indicate if DeadlineTimerWheel.cancelTimer() was successful.
  • Make hash set equals and hash code methods compatible with HashSet. PR #121
  • Upgrade to JShadow 2.0.2.
  • Upgrade to Checkstyle 8.8.
  • Upgrade to Gradle 4.5.1.

0.9.12 (15 Dec 2017)

  • Add methods to put and parse numbers in ASCII format with direct buffers. PR #118.
  • Add methods to put a range of a String in ASCII into direct buffers.
  • Only allocate sub collections and iterators if used in hash map implementations.
  • Provide a flag to hash set construction so that they don't cache iterators. PR #116.
  • Rework DeadlineTimerWheel API to have consistent naming and don't advance the wheel until a tick is consumed.
  • Remove IOException for direct buffer stream wrapper signatures that cannot be thrown. PR #113.
  • Upgrade to Mockito 2.15.0.
  • Upgrade to Checkstyle 8.5
  • Upgrade to JShadow 2.0.1.
  • Upgrade to Gradle 4.4.

0.9.11 (15 Nov 2017)

  • Rework DeadlineTimerWheel to be more usable and efficient. API changes are breaking.
  • Apply cacheline padding to cached clocks to avoid false sharing.
  • Remove clearing of interrupted flag if agent thread is interrupted. PR #112.
  • Raise the interrupted flag if the agent runner thread is interrupted in AgentRunner.close(). PR #112.
  • Call Agent.onClose() if constructed even if a thread did not start via the AgentRunner to allow for cleanup.
  • Add support for querying the state of a counter and lingering counters to CountersReader and CountersManager.
  • Allow AtomicCounter to be publicly constructed and bring method names for increment inline with AtomicBuffer.
  • Upgrade to Byte Buddy 1.7.9.
  • Upgrade to Mockito 2.12.0.
  • Upgrade to Checkstyle 8.4.

0.9.10 (01 Nov 2017)

  • Add new more efficient DeadlineTimerWheel implementation and remove old one.
  • Add the ability to parse size and time values with units from system properties.
  • Update to Mockito 2.11.0.

0.9.9 (16 Oct 2017)

  • Improve the performance of iterator setup in collections.
  • Add Object2IntHashMap.
  • Add HighResolutionClock and associated interfaces.

0.9.8 (11 Oct 2017)

  • Collection types implement Serializable.
  • Change BackoffIdleStrategy to avoid false sharing on card table and adjacent objects.
  • Added SystemUtil.loadPropertiesFiles() to load a list of files, resources, URLs into System Properties.
  • Added SystemUtil.isDebuggerAttached() so that code such as timeouts can be adjusted.
  • Add toString() methods for direct buffer implementations. See issue #106.
  • Upgrade to Checkstyle 8.3.
  • Upgrade to Byte Buddy 1.7.4.
  • Upgrade to Mockito 2.10.0.

0.9.7 (21 Aug 2017)

  • Added ConcurrentCountersManager for threadsafe counters allocation and reclamation.
  • Restrict hash based collection to have a load factor in the range to 0.1 to 0.9.
  • Restrict the minimum capacity for Maps to be 8.
  • Ensure that get() complies with the Map contract of returning null if the element is missing, Issue #98.
  • Make the lifecycle consistent between AgentRunner and AgentInvoker.
  • Agent can now self terminate by throwing an AgentTerminationException.
  • Added MutableInt and MutableLong.
  • Ability to allocate a counter without string or lambda allocation.
  • Added Agent.onStart() hook for initialisation.
  • Added CachedEpochClock and CachedNanoClock.
  • Added DynamicCompositeAgent for runtime adding and removing of Agents into a composite.
  • Support other character sets than UTF-8 for the CountersManager.
  • Upgrade to ByteBuddy 1.6.14.
  • Upgrade to Mockito 2.8.47.
  • Upgrade to Checkstyle 8.1.
  • Upgrade to sevntu-checks:1.24.1.
  • Upgrade to Gradle 4.1.

0.9.6 (14 May 2017)

  • Add ExpandableDirectByteBuffer.
  • Fix behaviour of Int2IntHashMap when being used via Map<Integer, Integer> interface.
  • Added SleepingMillisIdleStrategy.
  • Added AgentInvoker.
  • Provide a NoOpLock implementation to allow for the eliding of a ReentrantLock.
  • Improve performance when zeroing our a new or mapped file.
  • Reduce use of String.format().
  • Make AgentRunner.close() more robust.
  • Use platform specific new lines for error messages.
  • Clear missingValue when IntHashSet.clear() is called.
  • Upgrade to Checkstyle 7.7.

0.9.5 (12 Apr 2017)

  • Grow ExpandableArrayBuffer by the golden ratio rather than 2.
  • Add the ability to drain queues to a limit rather than completely.
  • Use platform specific new line message output.
  • Make AgentRunner.close() a bit more robust to startup race conditions.
  • Ensure the missingValue is reset when IntHashSet.clear() is called.
  • Upgrade to Mockito 2.7.22.
  • Upgrade to Gradle 3.5.

0.9.4 (06 Apr 2017)

  • Fixed and improved the efficiency of bulk operations on collections with particular focus on IntHashSet.
  • Improve efficiency (x2) of the iterators on hashed collections.
  • Improve efficiency of toString() methods on collections.
  • Add an efficient copy constructor to Int2ObjectHashMap.
  • Change Position and StatusIndicator from interfaces to abstract classes to benefit from CHA (Class Hierarchy Analysis).
  • Added ArrayListUtil.
  • Reduce default load factor in hash based collections from 0.67 to 0.55 to help avoid clustering resulting from linear probing.
  • Update hash functions to better spread out a monotonic sequence of keys in collections.
  • Increase AtomicCounter label length from 124 to 380 bytes to allow for longer more descriptive labels.
  • Add equals() and hashCode() methods to the collections.
  • Clarify Javadoc for RingBuffer.read(). Issue #95.
  • Fix missing 0xFF mask on DirectBufferInputStream.read(). PR #94.
  • Upgrade to Checkstyle 7.6.1.
  • Upgrade to sevntu-checks 1.23.1.
  • Upgrade to Mockito 2.7.21.
  • Upgrade to Byte Buddy 1.6.12.
  • Upgrade to Gradle 3.4.1.

0.9.3 (22 Feb 2017)

  • Fixed project code style violations.
  • Reworked primitive hash sets so they don't expose the missing value concept and allow all possible values and fix bug relating to collections containing the missing value. Note: This has caused an API change to the IntHashSet and LongHashSet constructors, ensure you check your arguments here.
  • Java Agent for checking access alignment to direct buffers.
  • Upgrade to Checkstyle 7.5.1.
  • Upgrade to Byte Buddy 1.6.9.
  • Upgrade to Gradle 3.4.

0.9.2 (23 Jan 2017)

  • Change artifact output from Agrona to agrona because some build systems have issues with case.
  • Improve performance of string methods on direct buffers.
  • Add primitive counter maps.
  • Bug fix primitive to primitive maps when the missingValue is used as a key.
  • Add ASCII codec methods to direct buffers.
  • Fix isEmpty() on multi-producer queues.
  • Remove explicit dependency of com.sun.media for those who do not use the HighResolutionTimer.
  • More efficient implementation of equals() and hashCode() on primitive array lists.
  • More lenient and correct implementation of equals() and hashCode() in hash sets.
  • Upgrade to Mockito 2.6.8.
  • Upgrade to Checkstyle 7.4.
  • Upgrade to sevntu-checks 1.23.0.
  • Upgrade to Gradle 3.3.

0.9.1 (20 Dec 2016)

  • Provide more efficient set based operations on Sets when used with the same type.
  • Notify Agent role name when timeout on awaiting shutdown to help debugging.
  • Added ShutdownSignalBarrier that response to SIGINT and SIGTERM.
  • Allow signal barriers to created on a different thread and be programmaticly signalled.
  • Better handle overflow when lists reach maximum size.
  • Grow primitive array lists based on golden ratio for better storage reclamation.
  • Upgrade to Checkstyle 7.3.
  • Upgrade to sevntu-checks 1.22.0.
  • Upgrade to Mockito 2.2.29.
  • Upgrade to Gradle 3.2.1.

0.9.0 (17 Nov 2016)

  • Only report errors in AgentRunner when it is running.
  • Added Gradle OSGi plugin.
  • Upgrade to sevntu-checks 1.21.1.
  • Upgrade to Mockito 2.2.16.
  • Upgrade to Gradle 3.2.

0.5.5 (03 Nov 2016)

  • Use primitive typed methods in CountersManager to avoid boxing.
  • Add popX() and pushX methods to IntArrayList and LongArrayList.
  • Upgrade to Mockito 2.2.9.
  • Upgrade to Checkstyle 7.2.

0.5.5 (15 Oct 2016)

  • HighResolutionTimer for for increasing resolution of sleep periods on Windows.
  • Make closing of AtomicCounters and Positions idempotent.
  • Bugfix for reading DistinctErrorLong with incorrect label offset.
  • Significant performance improvements on consume side of OneToOneRingBuffer.
  • ObjectHashSet for open addressing sets of object references.
  • Support remove() on hash set iterators.
  • Added computeIfAbsent() to primitive maps.
  • Array backed lists of long and int to avoid boxing.
  • Deprecate TimerWheel and migrated it to here...
  • Upgrade to Checkstyle 7.1.2.
  • Upgrade to Gradle 3.1.

0.5.4 (24 Aug 2016)

  • Added controllable idle strategy.
  • Change UnsafeBuffer.setMemory() so it is more likely to call memset() for greater performance.
  • Expose the address adjustment from wrapping ByteBuffers at offsets.
  • ThreadFactor support for starting Agents.
  • Upgrade to Gradle 2.14.1.

0.5.3 (22 Jul 2016)

  • Support read-only ByteBuffers with UnsafeBuffer.
  • Remove a layer of indirection for Positions and AtomicCounters to reduce data dependent loads.
  • Perform upfront bounds checking for Positions and AtomicCounters for increased performance.
  • Update to Checkstyle 7.0.

0.5.2 (29 Jun 2016)

  • Add SBE interfaces for flyweights.
  • Allow access to underlying FileChannel for MappedResizableBuffer.
  • Javadoc improvements.
  • Make isEmpty() consistent with poll() for queue behaviour.
  • Update to Gradle 2.14.
  • Update to Checkstyle 6.19.

0.5.1 (23 May 2016)

  • Ability to allocate an aligned direct ByteBuffer.
  • Change loadFactor on maps from double to float thus saving 4 bytes per map.
  • Update to Gradle 2.13.
  • Update to Checkstyle 6.18.

0.5.0 (22 Apr 2016)

  • ExpandableArrayBuffer and ExpandableDirectBufferOutputSteam so SBE can write messages when the length is not known upfront.
  • ThreadHints.onSpinWait() and apply it to IdleStrategys.
  • Primitive specialised replace() methods on primitive keyed maps.
  • Update to Checkstyle 6.17.

0.4.13 (24 Mar 2016)

  • Improved ManyToOneConcurrentLinkedQueue to avoid GC Nepotism and promotion issues.
  • Migrate from uk.co.real_logic.agrona to org.agrona package structure.
  • Group counters and related classes to the status package.
  • Update to Checkstyle 6.16.1
  • Update to Gradle 1.12

0.4.12 (01 Mar 2016)

  • Added keys and type metadata to CountersManager.
  • Fix for negative values in compound keys on BiInt2ObjectMap.
  • Added native byte order string methods to direct buffers.
  • Added DistinctExceptionLog and friends.
  • Improve efficiency of bounds checks on direct buffers.
  • Update to Gradle 2.11

0.4.11 (06 Feb 2016)

  • Improved efficiency of bounds checking on UnsafeBuffer.
  • Add equals(), hashCode(), and compareTo() methods to UnsafeBuffer.
  • Reduce memory footprint on primitive hash maps.
  • Bugfix for unblocking ManyToOneRingBuffer at end of the buffer.
  • Improve hashCode() on Int2IntHashMap and Long2LongHashMap.
  • Fix missing Iterator reset on Int2IntHashMap and Long2LongHashMap.

0.4.10 (18 Jan 2016)

  • Update Checkstyle to add indentation checks and fix violations.
  • Fix regression of UnsafeBuffer using int for the off-heap address to be long again.
  • Remove capacity and mask fields from some maps to allow for better compiler optimisation of bounds checks.
  • Remove mask field from queues and calculate based on capacity to save a field load.
  • Swap equals order on contains(Object) methods of maps to allow for better compiler inlining.
  • Added toString() method to primitive2primitive maps.

0.4.9 (06 Jan 2016)

  • Expose iteration APIs on primitive maps to avoid autoboxing.
  • Include generated classes in the source JAR.
  • Revert MemoryUsage wrapper for Unsafe to take out layer of indirection.
  • Add some missing Javadoc.
  • Added OneToOneRingBuffer implementation.
  • Update to Gradle 2.10.
  • Update to Checkstyle 6.14.1.

0.4.8 (26 Nov 2015)

  • Generate Long2ObjectHashMap
  • Added [Int|Long]2ObjectCache
  • Expand primitive map functionality for values and keys.
  • Update to Gradle 2.9

0.4.7 (13 Nov 2015)

  • Bugfixes for the RingBuffer and LruCache.

0.4.6 (03 Nov 2015)

  • RingBuffe can be unblocked when the producer dies.
  • Expose positions counters from RingBuffer for tracking.
  • Growable primitive Sets.
  • InputStream and OutputStream wrappers for direct buffers.
  • Free up space in queues as they are drained.
  • Improve CompositeAgent error handling and allow arbitrary number of agents.
  • Update to Gradle 2.8 and Checkstyle 6.11.2.

0.4.5 (14 Oct 2015)

  • Performance improvements to FIFO structures
  • Allow for better inlining of UnsafeBuffer bounds check.

0.4.4 (25 Sep 2015)

  • Performance improvements for iteration of hash maps.
  • Reduced clustering in hash maps.
  • Improved performance of bounds checks on UnsafeBuffer.
  • Fix race conditions in rapidly cycling the lifecycle of AgentRunners in tests.
  • Update to Grade 2.7.

0.4.3 (26 Aug 2015)

  • Added ManyToManyConcurrentArrayQueue and ManyToOneConcurrentLinkedQueue.
  • Off-heap buffer for storing records.
  • Fix bug with primitive maps size method.
  • Added NioSelectedKeySet.

0.4.2 (27 Jul 2015)

  • Improved Javadoc.

0.4.1 (20 Jul 2015)

  • Improved Javadoc.
  • Bugfixes to primitive hash maps.
  • Update to Gradle 2.5.

0.4 (09 Jul 2015)

  • Removed unused classes.
  • Added EpochClock.
  • Added LruCache.
  • Fixed Counter reset bug on allocation.
  • Update to Gradle 2.4.

0.3.1 (27 Apr 2015)

  • Verify alignment on off-heap data structures.
  • Added SIGINT support.
  • Bugfix for Broadcast Buffer.

0.3 (18 Mar 2015)

  • Idle strategies and AgentRunner.
  • Hash Sets.
  • Source expander.

0.2 (10 Feb 2015)

  • Clean up release after extraction from Aeron.

0.1 (16 Jan 2015)

  • Initial Release.
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