CHANGELOG.md

Changelog

Version 1.13.1 (2022-04-22)

🛠️ Bug fixes

• Fix duplicate class error on Android build (#5882)
• Fix spring-kafka single record instrumentation (#5904)

Version 1.13.0 (2022-04-19)

Migration notes

• Micrometer instrumentation is now automatically applied to spring-boot-actuator apps
• Some configuration properties have been renamed:
  • otel.instrumentation.common.experimental.suppress-controller-spans -> otel.instrumentation.common.experimental.controller-telemetry.enabled (important: note that the meaning is inverted)
  • otel.instrumentation.common.experimental.suppress-view-spans -> otel.instrumentation.common.experimental.view-telemetry.enabled (important: note that the meaning is inverted)
  • otel.instrumentation.netty.always-create-connect-span -> otel.instrumentation.netty.connection-telemetry.enabled
  • otel.instrumentation.reactor-netty.always-create-connect-span -> otel.instrumentation.reactor-netty.connection-telemetry.enabled
• Runtime memory metric names were updated to reflect semantic conventions
• Micrometer library instrumentation has been deprecated as it has been moved to the core repo and is now published under io.opentelemetry:opentelemetry-micrometer1-shim
• Library instrumentation entry points have been renamed from *Tracing to *Telemetry

🌟 New javaagent instrumentation

• GraphQL (#5583)
• JBoss Log Manager (#5737)
• Apache HttpClient 5.x async client (#5697)

🌟 New library instrumentation

• GraphQL (#5583)
• Ktor 2 (#5797)

📈 Enhancements

• Elasticsearch rest client low cardinality span names (#5584)
• Implement "Prometheus mode" for better micrometer->OTel->Prometheus support (#5537)
• Apply micrometer instrumentation to spring-boot-actuator apps (#5666)
• Sql sanitizer: handle double quoted table names (#5699)
• Spring Boot Starter service-name is constant (#5359)
• Update runtime memory metrics to reflect semantic conventions (#5718)
• change rpc type in apache dubbo (#5432)
• Rework context propagation to redisson async callback (#5748)
• Resolve end strategy after WithSpan method instead of before. (#5756)
• Allow scanning instrumented reactor publishers and only allow registe… (#5755)
• Faster type matching (#5724)
• Use UnsynchronizedAppenderBase as base class for our logback appender (#5818)
• Do not set the http.route attribute in JSF instrumentations (#5819)
• Use micrometer1-shim in micrometer javaagent instrumentation, deprecate library instrumentation (#5820)
• Rename netty always-create-connect-span property to connection-telemetry (#5834)
• Update the http.route attribute even for not sampled server spans (#5844)

🛠️ Bug fixes

• Fix possible deadlock (#5585)
• Prevent possible deadlock in downstream distro (#5830)
• Limit problems from kafka iterator instrumentation thread context leak (#5826)

🧰 Tooling

• Remove deprecated methods from instrumentation-api and library instrumentations (#5575)
• Split out RpcAttributesGetter (#5548)
• Run tests with jdk17 (#5598)
• Split out MessagingAttributesGetter (#5626)
• Run Gradle and compile code with Java 17 (#5623)
• Rename library entrypoints to Telemetry (#5624)
• Add InstrumenterBuilder.addRequestListener (#5655)
• Simplify HttpUrlConnection instrumentation (#5673)
• Convert all logging statements from slf4j to jul (#5674)
• Allows passing an OpenTelemetry instance to registerObservers() methods. (#5716)
• Make it possible to register multiple helper resources under the same… (#5703)
• Split out instrumentation-api-semconv (#5721)
• Move ClassNames & SpanNames to .util package (#5746)
• Library instrumentation should read its version from a file (#5692)
• Rename view and controller suppression config properties (#5747)
• Deprecate AttributesExtractor#set() method (#5749)
• Cleanup Config & ConfigBuilder API (#5733)
• Instrumenter instrumentation version and schema url (#5752)

Version 1.12.1 (2022-03-17)

🛠️ Bug fixes

• Elasticsearch rest client low cardinality span name (#5584)
• Fix possible deadlock (#5585)

Version 1.12.0 (2022-03-12)

🌟 New javaagent instrumentation

• Add Azure SDK instrumentation (#5467)

📈 Enhancements

• Use repository interface name in spring data operation name (#5352)
• Change the way Micrometer LongTaskTimer is bridged (#5338)
• Updates to http.server_name (#5369)
• Support forwarded proto field and x-forwarded-proto (#5357)
• Remove server span peer name (#5404)
• Add peer service support back to couchbase26 (#5451)
• Remove duplicative JAXRS HttpClient instrumentation (#5430)
• Add experimental thread attributes for logs (#5474)
• Add log4j 1.2 appender MDC capture (#5475)
• Capture logback formatted message (#5497)
• Add JBoss java.util.logging support (#5498)
• Disable the messaging receive span telemetry by default (#5500)
• Remove old experimental properties in CapturedHttpHeaders (#5524)
• Avoid conflicts in Micrometer description mapping (#5452)

🛠️ Bug fixes

• Fix another reverse lookup (#5393)
• Regression in loading the prometheus exporter (#5408)
• Fix muzzle failure on calls to primitive array clone (#5405)
• Fix regression in spring-scheduling span name (#5436)
• Fix android desugaring for HashMap.forEach (#5468)
• Fix duplicate class definition of ContextDataProvider (#5528)
• Do not propagate gRPC deadline when propagating OTel context via javaagent (#5543)

🧰 Tooling

• Split out CodeAttributesGetter (#5342)
• Add prometheus smoke test (#5417)
• Set custom gRPC client/server span name extractor (#5244)
• Split out DbClientAttributesGetter and SqlClientAttributesGetter (#5354)
• Add builders for setting optional attributes on HTTP extractors (#5347)
• Write http server tests in java (#5501)
• Deprecate CapturedHttpHeaders and replace it with builder methods (#5533)
• Update to Groovy 4 (#5532)

Version 1.11.1 (2022-02-21)

🛠️ Bug fixes

• Regression in loading the prometheus exporter (#5408)

Version 1.11.0 (2022-02-11)

Migration notes

• The previous release (1.10.0) deprecated the entire io.opentelemetry.instrumentation.api.tracer package in the instrumentation-api artifact, and the package was removed in this release.
• The javaagent -slim artifact has been dropped in this release, because the exporters are much smaller now and there is no longer a significant size difference between the -slim and default artifacts.
• The opentelemetry-aws-lambda-1.0 has been split into two artifacts opentelemetry-aws-lambda-core-1.0 and opentelemetry-aws-lambda-events-2.2.

🌟 New javaagent instrumentation

• Spring RMI instrumentation (#5033)

🌟 New library instrumentation

• Ratpack httpclient (#4787)

📈 Enhancements

• Add http.route to server spans where route was already being captured for span name (#5086, #5240, #5242, #5241, #5239)
• Use RPC attributes from spec for AWS SDK (#5166)
• SdkTracerProvider auto closed as separate Context Bean (#5124) (#5125)
• Support redisson 3.16.8+ (#5201)
• Support AWS SDK v1 request object subclasses. (#5231)
• Remove slim artifact (#5251)
• kotlinx-coroutines-reactor context propagation (#5196)
• Log a warning whenever GlobalOpenTelemetry.set() is called (#5264)
• Use http.route in HttpServerMetrics (#5266)
• Use VirtualField for associating netty listener with wrapper (#5282)
• Add code attributes to spring-scheduling spans (#5306)
• Propagate context into redisson async callback (#5313)
• Add max measurements to Micrometer Timer & DistributionSummary (#5303)
• Make it possible to configure base time unit used by the Micrometer bridge (#5304)
• Make HttpClientMetrics report low cardinality metrics (#5319)
• Implement NamingConvention support in Micrometer bridge (#5328)
• Add net.peer.name and net.peer.port attributes for grpc client span (#5324)
• Split lambda instrumentation into core and events (#5326)
• Add jaeger remote sampler to agent (#5346)
• Weak cache optimization (#5344)

🛠️ Bug fixes

• Several micrometer instrumentation fixes (#5118)
• Fix serialisation exception on default lambda events (#4724)
• NoSuchMethodError when using agent and modules (JPMS) (#5169)
• Spring boot cloud gateway, context propagation broken (#5188)
• Akka http server span names are always akka.request #3478 (#5150)
• Recover from duplicate class definition errors (#5185)
• Fix serialization for quartz JobExecutionContext (#5263)
• End jedis span when operation actually ends (#5256)
• Enable oshi ProcessMetrics in javaagent (#5281)
• Add missing return type matchers to the executor instrumentation (#5294)
• Fix triggering of DNS lookup (#5297)
• Avoid potential for reverse name lookup (#5305)
• Fix WeakConcurrentMap memory leak (#5316)
• AWS Lambda instrumentation requires jackson and lambda-events on the classpath (#5326)

🧰 Tooling

• Convert InstrumentationTestRunner from interface to abstract class (#5112)
• Parameterize VirtualField field type (#5165)
• Remove old TraceUtils and use InstrumentationTestRunner#run*Span() (almost) everywhere (#5160)
• Remove deprecated tracer API (#5175)
• Remove HttpServerTest#extraAttributes() method (#5176)
• Rename ServerSpanNaming to HttpRouteHolder (#5211)
• Don't run testLatestDeps on alpha/beta/rc versions (#5258)
• Refactor HTTP attributes extractors to use composition over inheritance (#5030, #5194 #5267)
• Refactor AttributesExtractor so that it extracts route from Context (#5288)
• Publish gradle-plugins to Maven Central (#5333)

Version 1.10.1 (2022-01-27)

🛠️ Bug fixes

• Regression in project reactor context propagation instrumentation (#5188)
• Recover from duplicate class definition errors (#5185)
• StringIndexOutOfBoundsException in AWS SDK v1 when using request object subclass (#5231)
• Update to OTel SDK 1.10.1 (#5218)

Version 1.10.0 (2022-01-15)

Migration notes

• The opentelemetry-log4j-2.13.2 artifact has been renamed to opentelemetry-context-data-2.16-autoconfigure
• The opentelemetry-logback-1.0 artifact has been renamed to opentelemetry-logback-mdc-1.0
• The opentelemetry-ratpack-1.4 artifact has been renamed to opentelemetry-ratpack-1.7 and only supports Ratpack 1.7 and above now

🌟 New javaagent instrumentation

• Logback appender instrumentation to send logs through the OpenTelemetry logging pipeline (#4939, #4968)
• Log4j 2.x appender instrumentation to send logs through the OpenTelemetry logging pipeline (#4944, #4959, #4966)
• Log4j 1.2 appender instrumentation to send logs through the OpenTelemetry logging pipeline (#4943)
• java.util.logging instrumentation to send logs through the OpenTelemetry logging pipeline (#4941)
• Micrometer instrumentation to send micrometer metrics through the OpenTelemetry metrics pipeline (#4919, #5001, #5017)

🌟 New library instrumentation

• Logback appender to send logs through the OpenTelemetry logging pipeline (#4984)
• Log4j 2.x appender to send logs through the OpenTelemetry logging pipeline (#4375, #4907)
• Ktor instrumentation (#4983)
• Micrometer instrumentation to send micrometer metrics through the OpenTelemetry metrics pipeline (#5063)

📈 Enhancements

• Renamed Apache Dubbo and Log4j MDC library artifacts (#4779)
• Added http4 handler to apache-camel instrumentation (#4650)
• Capture servlet request parameters (#4703)
• Propagate Context instead of SpanContext in Kafka instrumentation (#4806)
• Instrument ContextPropagationOperator to bridge lib/agent calls (#4786)
• Add shouldStart() call to Armeria server instrumentation (#4843)
• Capture RPC metrics (#4838)
• Update log4j library base version (#4914)
• Rename log4j-thread-context modules to log4j-context-data (#4957)
• Support latest oshi version (#4993)
• Support latest RxJava version (#4954)
• Create producer span from spring integration instrumentation (#4932)
• Capture servlet request parameters at the end of the request (#5019)
• Don't extract deprecated cassandra keyspace attribute (#5041)
• Add OTLP logs exporters (#5060, #5088)
• End redisson span when the operation actually ends (#5073)
• Don't capture high-cardinality http.target as metrics attribute (#5081)

🛠️ Bug fixes

• Remove virtual field interfaces from reflection results (#4722)
• Work around jvm crash on early 1.8 (#4345)
• Fix http.url handing in vert.x 3 http client (#4739)
• Capture missing RMI spans (#4764)
• Avoid crashing on early 1.8 openjdk vms (#4789)
• Fix Quarkus correlation (#4883)
• Fix RabbitMQ instrumentation consumption on empty headers (#4903)
• Fix NPE in Apache HttpClient 4.0 instrumentation (#4913)
• Fix NPE in RocketMQ instrumentation (#4901)
• Fix time units in HTTP & RPC metrics (#4963)
• Fix some gauge types (#4962)
• Fix context propagation for undertow async dispatch (#4950)
• Fix redefinition failure on openj9 (#5009)
• Fix NPE in rmi server instrumentation (#5042)

🧰 Tooling

• Merge start and end time extractors (#4692)
• Move cache implementations to internal package (#4746)
• Reorganize shared servlet code (intro to #4317) (#4785)
• Move AppServerBridge and MappingResolver to servlet-common:bootstrap (#4817)
• Move ServletContextPath to servlet-common:bootstrap (#4824)
• Expose AutoConfiguredOpenTelemetrySdk to AgentListener (#4831)
• Deprecate the Tracer API (#4868)
• Remove ConfigPropertiesAdapter as it's no longer needed (#4888)
• Refactor ServerSpanNaming (in preparation for http.route) (#4852)
• Move SpanKey to internal package (#4869)

Version 1.9.2 (2022-01-07)

🛠️ Bug fixes

• Fix reactor-netty memory/connection leak (#4867)

Version 1.9.1 (2021-12-01)

🛠️ Bug fixes

• Shade class references within AWS SDK service files (#4752)

Version 1.9.0 (2021-11-25)

📈 Enhancements

• Don't report 400 level as error for SERVER spans (#4403)
• Netty instrumentation now captures http.scheme (#4446, #4576)
• Stabilize HTTP headers capturing configuration property names (#4459)
• Add metrics to remaining http instrumentation (#4541)
• Remove hibernate session spans (#4538)
• Support Jedis 4 (#4555)
• Trace DNS resolution in Netty 4.1 and reactor-netty (#4587, #4627)
• Update garbage collector instruments to be async counters (#4600)
• Update HTTP metrics view to match the specification (#4556)
• Improve Spring Integration interceptor ordering (#4602)
• Support Restlet 2.0 (#4535)
• Improved capture of couchbase queries (#4615)
• Trace SSL handshakes in netty 4.0 and 4.1 (#4635, #4604)
• Capture exception on finatra controller spans (#4669)
• Capture exception on async servlet spans (#4677)
• Automatic AWS library instrumentor (#4607)
• Support spring boot 2.6.0 (#4687)

🛠️ Bug fixes

• Preserve caught netty exception in the context instead of calling end() (#4413)
• Extract net attributes both on start and on end in netty HTTP client (#4420)
• Capture metric dimensions from end attributes also (#4430)
• Avoid logging servlet3 muzzle failure when running on servlet2 (#4474)
• Fix JettyHttpClient9TracingInterceptor NullPointerException (#4527)
• Fix context propagation in tomcat thread pool (#4521)
• Add missing java.util.logging.Logger methods to PatchLogger (#4540)
• Fix ClassCircularityError when running with security manager (#4557)
• Fix sun.misc.Unsafe generation on Java 17 (#4558)
• Fix IndexOutOfBounds in apache http clients (#4575)
• Fix RMI instrumentation on Java 17 (#4577)
• Fix Spring Integration instrumentation name (#4601)
• Capture instrumentation version provided by application tracer correctly when using agent (#4630)
• Ensure that netty 4.0 instrumentation is not applied to 4.1 (#4626)
• Fix muzzle problems happening when netty without SSL is used (#4631)
• Fix memory leak when using ktor-client-java (#4637)
• Fix quartz instrumentation name (#4657)
• Fix Spring Integration context leak (#4673)
• Fix exemplars (#4678)
• Fix and enforce Android support (#4671, #4667 #4505)

🧰 Tooling

• Migrate to Spock 2 (#4458)
• Rename newBuilder() to builder() (#4475)
• Sync gradle-plugins version with main project (#4248)
• Muzzle match only once in each class loader (#4543)
• Inject helper resources only once (#4573)
• Improve muzzle check for constructors (#4591)
• Add version to the InstrumenterBuilder and Instrumenter (#4611)
• Add a ClassAndMethod class to Instrumentation API (#4619)
• Implement a dedicated reactor-netty 1.0 instrumentation (#4662)
• Remove gRPC dependency for export (#4674)
• Start using Gradle Enterprise instance (#4663)

Version 1.8.0 - Bad Release

Due to an issue in the publishing infrastructure, a bad release was published as 1.8.0. Do not use it.

Version 1.7.0 (2021-10-19)

📈 Enhancements

• Change the default javaagent artifact to have exporters, introduce new -slim artifact, and deprecate the -all artifact (#4106)
• Support jlinked images without jdk.unsupported module (#4154) (#4124)
• Added experimental option to suppress messaging receive spans (#4187) (#4204)
• Refine 404 handling in Restlet instrumentation (#4206)
• Remove dynamo db.name attribute (#4208)
• Remove capturing http.url in server instrumentation in favor of http.scheme, http.host and http.target (#4209)
• Intern db info to reduce memory consumption (#4263)
• Better JAX-RS async cancel handling (#4279)
• Extract HTTP request/response headers as span attributes (#4237, #4309, #4320, #4321, #4328, #4395)
• Support kafka streams 3 (#4236)
• AWS lambda - improvements in custom type handling in wrappers, SQS event wrapper added (#4254)
• Add code attributes to quartz spans (#4332)
• Collect more attributes from servlet instrumenter (#4356)
• Allow reactor instrumentation to pick up spans from reactor context (#4159)
• Hide virtual field accessor interface methods from reflection (#4390)

🛠️ Bug fixes

• Fix spring context reload issue (#4051)
• Remove incorrect lettuce db.statement attribute (#4160)
• Fix tomcat async spans (#4339)

🧰 Tooling

• Add start/end time to RequestListener (#4155)
• Add context customizer hook to Instrumenter API (#4167)
• Transform lambda classes (#4182)
• Separate HTTP client/server AttributesExtractors (#4195)
• Introduce muzzle-specific interface to InstrumentationModule (#4207)
• Make it possible to use InstrumentationContext (now VirtualField) from library instrumentation (#4218)
• Add functionality to generate API changes (#4285)
• Split NetAttributesExtractor into NetClientAttributesExtractor and NetServerAttributesExtractor (#4287)
• Back VirtualField with a volatile field (#4355)
• Convert AttributesExtractor to interface (#4363)
• Rename some *InstrumenterBuilder classes to *InstrumenterFactory (#4391)
• rename newBuilder() to builder() (#4407)

Version 1.6.2 (2021-09-30)

🛠️ Bug fixes

• The 1.6.1 patch release was not backwards compatible with javaagent extensions built against 1.6.0 (#4245)

Version 1.6.1 (2021-09-29)

🛠️ Bug fixes

• Fix possible JDBC instrumentation deadlock (#4191)

Version 1.6.0 (2021-09-18)

🌟 New javaagent instrumentation

• Add instrumentation for Quartz 2.0 (#4017)
• Restlet instrumentation (#3946)

🌟 New library instrumentation

• Add instrumentation for Quartz 2.0 (#4017)
• Restlet instrumentation (#3946)

📈 Enhancements

• Extract Jedis 3 net attributes from InetSocketAddress (#3912)
• Add option to suppress controller and view spans (#3865)
• Capture http.user_agent for AsyncHttpClient (#3930)
• Instrument spring-kafka batch message listeners (#3922)
• Use unsafe to inject classes to the bootstrap class loader (#4026)
• Some performance optimizations (#4004, #4006, #4008, #4013, #4014)
• Do not fallback to net attributes for http.client_ip (#4063)
• Start a CONSUMER span for Kafka poll() (#4041)
• Support otlp http exporter (#4068)
• Better grpc events (#4098)

🛠️ Bug fixes

• Bridge span keys defined in instrumentation-api (#3911)
• Hide generated fields and methods from reflection (#3948)
• Remove invalid message header (#3958)
• Fix memleak in the Netty ChannelPipeline instrumentation (#4053)
• Fix grpc instrumentation of callbacks (#4097)
• Bridge trace builder (#4090)
• Remove original handler when removelast in netty (#4123)

🧰 Tooling

• Deprecate old extensions (#3825)
• Add request parameter to EndTimeExtractor (#3947)
• Make Config behave exactly as SDK DefaultConfigProperties (#4035)
• Fix extension shading (#4064)
• Add error parameter to EndTimeExtractor and AttributesExtractor#onEnd() (#3988)
• Allow adding multiple ContextStore fields to one key class (#4067, #4084, #4110)

Version 1.5.3 (2021-08-31)

🛠️ Bug fixes

• Fix parsing of unclean map values in Config (#4032)

Version 1.5.2 (2021-08-27)

🛠️ Bug fixes

• Fix unbounded metrics cardinality, which in particular causes memory leak when not using any metrics exporter (#3972)

Version 1.5.1 (2021-08-25)

🛠️ Bug fixes

• Fix broken Android level 21-25 support in OkHttp 3 library instrumentation (#3910)
• Fix maven central pom file for the opentelemetry-javaagent artifact (#3929)
• Fix maven central pom file for the opentelemetry-agent-for-testing artifact (#3935)

Version 1.5.0 (2021-08-22)

🌟 New library instrumentation

• Library instrumentation for Apache HTTP Client 4.3 (#3623)
• Library instrumentation for Ratpack server (#3749)

📈 Enhancements

• Support Couchbase 3.2.0 (#3645)
• Handle port and IPv6 in forwarded headers (#3651)
• Set real Hibernate span name on method entry to help samplers (#3603)
• Reduce overhead of unsampled requests (#3681)
• Sanitize SQL in Apache Camel instrumentation (#3683, #3717)
• Add option to create span on new netty connection (#3707)
• Propagate context into jdk http client callback (#3719)
• Instrument Tomcat executor to support async servlets in new Tomcat 9.0.52 release (#3789)
• Add otlp-logging exporter (#3807)
• Add new option to support capturing nested client spans of different types (#3691)
• Propagate context to lettuce callbacks (#3839)
• Instrument ForkJoinTask.fork() (#3849)
• Implement a Call.Factory for okhttp 3.x+ library instrumentation (#3812)
• Record exception in Dubbo instrumentation (#3851)
• Propagate context to elasticsearch callbacks (#3858, #3861)
• Added Vertx http client 4 instrumentation (#3665)
• Make empty agent bridged context equal root context (#3869)

🛠️ Bug fixes

• Fix OkHttp 3 correlation when using callback under concurrency (#3669, #3676)
• Fix Netty span not captured on read timeout (#3613)
• Fix Netty connection failure handling when listener is lambda (#3569)
• Fix NullPointerException in Apache HttpAsyncClient instrumentation (#3692)
• Fix NullPointerException in Tomcat instrumentation (#3705)
• Fix Apache HttpClient telemetry when host and absolute URI are used (#3694)
• Fix JDK http client should propagate even when sampled out (#3736)
• Limit netty exception capture to netty spans (#3809)
• Fix jetty httpclient returning empty response when instrumented (#3831, #3833)
• Don't clobber user decorators in Armeria client instrumentation (#3873)
• Use valid Java identifiers for message keys (#3863)
• Fix ClassNotFoundException: HandlerMappingResourceNameFilter in some ear deployments (#3718)

🧰 Tooling

• Improve extension sample documentation and add it to the README file (#3656)
• Extract muzzle check plugin (#3657)
• Move instrumentation specific classes out of javaagent-instrumentation-api (#3604)
• Publish muzzle plugins to Gradle Plugin Portal (#3720, #3763)
• Fill http.client_ip in ServerInstrumenter (#3756)
• Fix printMuzzleReferences gradle task (#3808)
• Introduce stable property for external extensions (#3823)
• Run tests on j9 JVM during CI (#3764)
• Support looking up a ContextStore from outside of Advice (#3827)
• Deprecate MetricExporterFactory (#3862)
• Don't pass configuration to SDK autoconfigure through system props (#3866)
• Rename Config get*Property() methods to get*() (#3881)

Version 1.4.0 (2021-07-20)

☢️ Behavioral changes

• Updated all instrumentation names to io.opentelemetry.{libName}-{libVersion} (#3411)
• Updated RabbitMQ to follow semantic conventions (#3425)

🌟 New javaagent instrumentation

• Jetty 9 HTTP client instrumentation (#3079)

🌟 New library instrumentation

• Jetty 9 HTTP client instrumentation (#3079)
• Jdbc instrumentation (#3367)

📈 Enhancements

• Make @RabbitListener propagate context properly (#3339)
• Add peer.service to grpc javaagent instrumentation (#3357)
• Propagate context to cassandra4 callbacks (#3371)
• Update Armeria instrumentation to support new Armeria 1.9.0 release (#3407)
• Context propagation for ratpack Execution.fork() (#3416)

🛠️ Bug fixes

• Fix Kafka stream instrumentation to support Kafka 2.6 and above (#3438)
• Fix Dubbo trace/span cross-process propagation (#3442)
• Fix peer.service configuration mapping (#3378)

🧰 Tooling

• Hide Config#create() method and use builder everywhere (#3338)
• Ignore task classes using IgnoredTypesConfigurer (#3380)
• Exclude duplicate classes from final jars (#3432, #3430)
• Port AsyncSpanEndStrategy to Instrumenter API (#3262)
• Rename opentelemetry-javaagent-api artifact to opentelemetry-javaagent-instrumentation-api (#3513)

Version 1.3.1 (2021-06-23)

🛠️ Bug fixes

• Fix incorrect dependency in published BOM (#3376)
• Fix UnsupportedOperationException with reactor-rabbitmq (#3381)
• Fix Spring JMS not being instrumented (#3359)

Version 1.3.0 (2021-06-17)

☢️ Behavioral changes

• Update agent logger prefix (#3007)
• Remove khttp instrumentation (#3087)
• Enable akka actor instrumentation by default (#3173)

🌟 New javaagent instrumentation

• Spring Integration javaagent instrumentation (#3295)

🌟 New library instrumentation

• Spring Integration library instrumentation (#3120)

📈 Enhancements

• Support peer-service-mapping in OkHttp3 instrumentation (#3063)
• Low cardinality span names for Hibernate spans (#3106)
• Propagate context to armeria callbacks (#3108)
• Add attributes to netty connection failure span (#3115)
• Defer initialization of OpenTelemetry in spring-boot-autoconfigure (#3171)
• Support couchbase 3.1.6 (#3194)
• New experimental support for agent extensions (#2881, #3071, #3226, #3237)
• Propagate context to akka http callbacks (#3263)

🛠️ Bug fixes

• Remove Netty instrumented handler wrapper when original handler is removed (#3026)
• Fix memory leak when Netty handler is a lambda (#3059)
• Fix race condition on Undertow (#2992)
• Remove db.connection_string from redis instrumentation (#3094)
• Fix context propagation leak in Akka instrumentation (#3099)
• Fix webflux handler span sporadically not ending (#3150)
• End span on cancellation of subscription to reactive publishers (#3153)
• End span on cancellation of Guava future (#3175)
• Create Netty connection failure span only when first operation fails (#3228)
• Internal instrumentation should always be enabled by default (#3257)
• Fix context propagation leak in Akka HTTP instrumentation (#3264)
• Only include exporters in the -all jar (#3286)
• Fix ForkJoinPool sometimes not instrumented (#3293)

🧰 Tooling

• Migrate MuzzlePlugin to Java (#2996, #3017)
• Refactor TypeInstrumentation#transformers() method (#3019)
• Change a couple of Longs to Integers in Instrumenter API (#3043)
• Add peer.service to Instrumenter API (#3050)
• Add response type parameter to db attributes extractor (#3093)
• Add optimized Attributes implementation for Instrumenter (#3136)
• Rename ComponentInstaller to AgentListener and add #order() method (#3182)
• Update ByteBuddy (#3254)
• Introduce IgnoredTypesConfigurer SPI to enable defining per-module ignores (#3219)
• Extract agent shadow configuration to conventions script (#3256)
• Deprecate SpanExporterFactory in favor of ConfigurableSpanExporterProvider (#3299)
• Refactor span names class (#3281)
• Move http client/server testing dependencies to internal package (#3305)

Version 1.2.0 (2021-05-14)

☢️ Behavioral changes

• AWS lambda flush timeout raised to 10 seconds (#2855)
• SERVER span names improved for Spring MVC, Grails, Wicket, and Struts (#2814)
• SERVER span names improved for Servlet filters (#2887)
• SERVER span names improved for Resteasy (#2900)
• SERVER span names improved for Jersey and CXF (#2919)
• JAX-RS @ApplicationPath annotation captured as part of SERVER span name (#2824)
• RequestDispatcher forward() and include() internal spans removed (#2816)
• Raised gRPC min version supported to 1.6 in order to use new gRPC context bridge API (#2948)

🌟 New javaagent instrumentation

• RxJava 3 (#2794)

🌟 New library instrumentation

• RxJava 3 (#2794)

📈 Enhancements

• Support sub-millisecond precision for start/end times on Java 9+ (#2600)
• @WithSpan async support added for methods returning async Reactor 3.x types (#2714)
• @WithSpan async support added for methods returning Guava ListenableFuture (#2811)
• Semantic attributes code.namespace and code.function captured on JAX-RS internal spans (#2805)
• Context propagated to reactor-netty callbacks (#2850)

🛠️ Bug fixes

• gRPC context bridging issues (#2564, #2959)
• URL credentials of the form https://username:password@www.example.com/ no longer captured (#2707)
• Spring MVC instrumentation can cause Spring MVC to misroute requests under some conditions (#2815)
• RxJava2 NoSuchFieldError (#2836)
• Duplicate http client tracing headers (#2842)
• Netty 4.1 listeners could not be removed by application (#2851)
• NPE caused in gRPC ProtoReflectionService (#2876)
• Context leak when using Ratpack (#2910)
• Context leak when using Jetty (#2920)
• Servlet instrumentation overwrites setStatus that was set manually earlier (#2929)
• Spans not captured on interface default methods annotated with JAX-RS annotations (#2930)

🧰 Tooling

• Documented how to write InstrumentationModule line by line (#2793)
• New instrumenter API used in JMS instrumentation (#2803)
• Instrumenter API improvements (#2860)
• Muzzle checks whether used fields are actually declared somewhere (#2870)
• Extracted javaagent-extension-api from tooling & spi (#2879)
  • You no longer have to depend on the javaagent-tooling module to implement custom instrumentations: a new javaagent-extension-api module was introduced, containing all the necessary instrumentation classes and interfaces;
  • InstrumentationModule and TypeInstrumentation were moved to the io.opentelemetry.javaagent.extension.instrumentation package;
  • AgentElementMatchers, ClassLoaderMatcher and NameMatchers were moved to the io.opentelemetry.javaagent.extension.matcher package;
  • A new SPI AgentExtension was introduced: it replaces ByteBuddyAgentCustomizer;
  • InstrumentationModule#getOrder() was renamed to order();
  • InstrumentationModule#additionalHelperClassNames() has been removed; use isHelperClass(String) instead if you use the muzzle compile plugin. If you're not using muzzle, you can override getMuzzleHelperClassNames() directly instead;
  • InstrumentationModule#getAllHelperClassNames() has been removed; you can call getMuzzleHelperClassNames() to retrieve all helper class names instead.

Version 1.1.0 (2021-04-14)

☢️ Behavioral changes

• Update servlet attribute names for log injection, from traceId and spanId to trace_id and span_id (#2593)
• Renamed runtime.jvm.gc.collection metric to runtime.jvm.gc.time (#2616)

🌟 New javaagent instrumentation

• Elasticsearch 7 (#2514, #2528)
• Couchbase 3.1 (#2524)
• Grails (#2512)
• RocketMQ (#2263)
• Lettuce 6 (#2589)
• Servlet 5 (#2609)
• Vaadin web framework (#2619)
• GWT (#2652)
• Tapestry web framework (#2690)
• @WithSpan support for methods returning CompletableFuture (#2530)
• @WithSpan support for methods returning async RxJava 2 types (#2530)

🌟 New library instrumentation

• Library instrumentation for AWS SDK v1 (#2525)
• Library instrumentation for Lettuce 5.1 (#2533)
• RocketMQ (#2263)
• Lettuce 6 (#2589)
• Spring Boot Autoconfigure support for @WithSpan methods returning CompletableFuture (#2618)
• Spring Boot Autoconfigure support for @WithSpan methods returning async RxJava 2 types (#2530)

📈 Improvements

• Move attributes to span builder for use by samplers (#2587)
• Apache Camel - SNS propagation (#2562)
• Apache Camel - S3 to SQS propagation (#2583)
• Added runtime.jvm.gc.count metric (#2616)
• Support reactor netty HttpClient.from construction (#2650)
• Improve akka instrumentation (#2737)
• Record internal metric for SQL cache misses (#2747)
• End Netty 4.1 client and server spans when the response has completed, instead of when the response has started (#2641)

🛠️ Bug fixes

• Fix RestTemplateInterceptor so that it calls endExceptionally() on exception (#2516)
• Fix app failure under Eclipse OSGi (#2521)
• Fix undertow span ending too early (#2560)
• Fix context leak in AWS SDK 2.2 and RocketMQ instrumentations (#2637)
• Fix hang when a webflux http request is made inside of another webflux http request (e.g. auth filter) (#2646)
• Fix @WithSpan instrumentation breaking Java 6 classes (#2699)
• Fix context not propagated over JMS when explicit destination used (#2702)
• Fix StackOverflowError if jdbc driver implementation of Connection getMetaData calls Statement execute (#2756)

🧰 Tooling

• Make muzzle reference creation package(s) configurable (#2615)
• Instrumentations now can skip defining context store manually (#2775)
• New Instrumenter API (#2596)