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Java agent release notesRSS

December 10, 2019
Java agent v5.9.0

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Improvements

  • AWS SDK

    • AWS S3 - The Java agent now reports calls to Amazon S3 using AmazonS3 and S3Client as external metrics
    • AWS SQS - The Java agent now reports calls to Amazon SQS using AmazonSQS, AmazonSQSAsync, SqsClient as message queue metrics
    • AWS SNS - The Java agent now reports calls to Amazon SQS using AmazonSNS, AmazonSNSAsync, SnsClient as message queue metrics
  • Distributed Tracing - The agent now supports distributed traces originating from the New Relic Browser agent

Fixes

  • The ca_bundle_path configuration setting would fail to correctly import certificates when running on IBM J9
  • Clarified the startup log message about the state of browser monitoring for the current application.
  • The agent logger would sometimes throw a NullPointerException
  • The agent would stop reporting Kafka metrics when one or more clients where closed
  • HttpURLConnection instrumentation could cause a NullPointerException in the agent logs and fail to report External metrics

Deprecated

  • Jar Collector system properties prefixed with newrelic.config.module and environment variables prefixed with NEW_RELIC_MODULE are deprecated and will be removed in a future agent release. Instead use the newrelic.config.jar_collector and NEW_RELIC_JAR_COLLECTOR prefixes.

Removed dependency

  • The agent no longer has a dependency on ANTLR.

October 29, 2019
Java agent v5.8.0

New features

New OSS SDK

We now have an open source Telemetry SDK for Java for sending telemetry data to New Relic. The current SDK supports sending dimensional metrics to the Metric API and spans to the Trace API.

Fixes

  • The Solr 7 instrumentation would not report Update JMX metrics.
  • HttpURLConnection instrumentation produced External metrics only when network methods (getInputStream, getResponseCode) are called.
  • MongoDB instrumentation would report duplicate metrics when applications invoked MongoClientOptions.build() more than once.

September 25, 2019
Java agent v5.7.0

Improvements

  • Java 13

    The New Relic Java agent is now fully compatible with version 13 of the OpenJDK and Hotspot JDKs.

Bug fixes

  • Calls to NewRelic.getAgent().getTracedMethod().addOutboundRequestHeaders() will no longer throw an exception if a traced method has started but a transaction has not. This could happen by calling this in a method annotated with @Trace(async=true) before a token is linked.
  • Updates Guava to the newest release.
  • NoClassDefFoundError would occur in agent logs when a spring controller is used without a root level RequestMapping annotation.
  • The gc_time metric, which was enabled by default in version 5.2.0, has now been disabled by default since its results are often misleading.

September 17, 2019
Java agent v5.6.0

New APIs

  • Added getTraceMetadata(). This provides information about the currently executing trace, including the trace and span ids as well as it’s sampled state
  • getTraceId(), which provides the currently executing trace’s identifier from the TraceMetadata.
  • getSpanId(), which provides the span identifier associated with the currently executing span from the TraceMetadata.
  • isSampled(), returns whether or not the current transaction is part of a sampled distributed trace from the TraceMetadata.
  • Added getLinkingMetadata(), which provides an opaque map of key/value pairs that can be used to correlate this application in the New Relic backend.

Fixes

  • Spring Webflux WebClient would not track external calls when constructed with baseUrl(String baseUrl)
  • The NewRelic.getAgent().getConfig().getValue() api would not check configuration values set via environment variables
  • The agent’s completable-future instrumentation could hold a reference to Tokens after they were expired, which could cause excessive memory usage.
  • Error traces could report to the wrong application when auto_app_naming is enabled and there were errors from two different application names getting reported during the same harvest
  • The agent’s MongoDB instrumentation would instrument the same builder used by the async and reactive-streams drivers, resulting in excessive memory usage and incorrect transaction times. Note: The agent will no longer instrument the sync MongoDB driver if the async and/or reactive-streams drivers are on the application’s classpath.

September 4, 2019
Java agent v5.5.0

New features

  • Support for Real Time Streaming

    • Event data is now sent to New Relic every five seconds, instead of every minute. As a result, transaction, error, and custom events will now be available in New Relic dashboards in near real time. For more information on how to view your events with a five-second refresh, see the real time streaming documentation.
    • Note that the overall limits on how many events can be sent per minute have not changed. Also, span events, metrics, and trace data is unaffected, and will still be sent every minute.

Improvements

  • The Java agent now uses persistent connections when connecting to New Relic, reducing overhead.

August 27, 2019
Java agent v5.4.0

Notes

  • x-ray and any x-ray related attributes and identifiers will no longer be available in this version of the java agent. The New Relic x-ray feature reached end-of-life on April 17, 2019

Improvements

  • OkHttp This release adds support for OkHttp 4.0. You will now see OkHttp calls as external calls in New Relic.
  • Agent configuration settings set via environment variables will be available on the Environment page.
  • Improves performance of the Java agent.

Fixes

  • Transaction Traces would occasionally miss segments when using the spring @Async annotation with servlets.
  • Jax-RS instrumentation was not starting transactions.
  • A potential race condition during agent startup that would manifest as a NoClassDefFoundError for internal New Relic classes.
  • Akka-http instrumentation would attempt multiple retransforms of the same class.
  • The noticeError API would drop custom attributes that weren't of type String, Number, or Boolean, such as an Enum or other custom types.

July 24, 2019
Java agent v5.3.0

Improvements

  • gRPC

    The Java agent now has support for gRPC version 1.22

  • Dragonwell JDK

    The Java agent now fully supports Alibaba's Dragonwell JDK

  • Azul Zing

    The Java agent now supports Azul's Zing JVM

  • Enables ability to migrate to Configurable Security Policies (CSP) on a per agent basis for accounts already using High-security mode (HSM.

    When both HSM and CSP are enabled for an account, an agent (this version or later) can successfully connect with either high_security: true or the appropriate security_policies_token configured.

Fixes

  • LinkageError for applications using both OpenJ9 and Log4J log manager
  • ClassNotFoundException for applications that specify a Log4j ContextSelector via the -DLog4jContextSelector system property
  • Akka-http instrumentation would name transactions incorrectly when using an asynchronous onComplete callback to match routes
  • The agent’s JaxRS instrumentation did not apply to cases where a concrete class implements the same method from two different interfaces
  • The agent would not report JMX metrics when one or more composite attributes were null
  • Race condition that could throw a NullPointerException in the agent log during class transformation
  • Akka-http path matching instrumentation could produce NullPointerExceptions when using a "repeat" path segment with no values. Transactions that pass some values will report as-is, but transactions that pass no values will be reported with a different segment in the metric name: "().repeat()"
  • ignore_status_codes system property was not getting applied correctly

June 26, 2019
Java agent v5.2.0

Improvements

  • MongoDB

    This release adds instrumentation for mongo-java-driver clients created using the MongoClients class Previous versions of the agent only supported the MongoClient() constructor Note: The MongoDB Asynchronous Java Drivers are not yet supported.

  • Custom request header attributes

    The Java agent now provides a new configuration option to report HTTP request header(s) as transaction attributes. See the documentation for more details.

  • Distributed tracing

    Datastore span events now include a db.collection attribute. This field represents the collection or primary table name for the associated query. It is accessible in Insights, Distributed Tracing, and anywhere you get your favorite spans.

  • GC Time

    The Java agent now records time spent waiting for garbage collection during the duration of a transaction and includes the GC time on the corresponding transaction trace as well as the transactions time chart.

    This setting is configurable as follows in the newrelic.yml:

transaction_tracer:
gc_time_enabled: true

Fixes

  • Fixes an issue where very long-running transactions with a large number of segments would cause an excessive amount of memory usage. The agent will no longer trace segments once the segment_limit has been reached.

Notes

June 13, 2019
Java agent v5.1.1

Fixes

  • gRPC

This release fixes two bugs in the Java agent's gRPC instrumentation. We highly recommend customers using gRPC instrumentation to upgrade to this and or later agent versions.

  • References to transaction segments were not being removed correctly, which can cause a memory leak
  • The agent could cause the gRPC server listeners to fail to execute its completed and/or cancelled methods, which can cause unexpected behavior

May 29, 2019
Java agent v5.1.0

Improvements

  • JAX-RS

    This release adds support for @PATCH JAX-RS annotation. The agent will create and name transactions based @PATCH annotations.

Fixes

  • Fixes an issue in the Scala instrumentation that would cause an Java.lang.IllegalArgumentException: to be thrown when the Lightbend Cinnamon agent is in use.
  • Fixes an issue where Cross Application Tracing headers were incorrectly parsed when Distributed Tracing is enabled. Applications that use both Distributed Tracing and Cross Application Tracing will no longer report external transaction breakdown metrics.
  • Fixes an issue where the agent’s Kafka instrumentation would report WakeupExceptions as errors in New Relic. These exceptions will no longer be reported.
  • Fixes a Log4J ClassCastException for applications running on the IBM J9 JVM that set a custom logging manager via the -Djava.util.logging.manager system parameter.
  • The agent now supports using the thread profiler when the send_environment_info configuration is disabled.

Notes

  • The agent now sends data to New Relic using gzip compression by default. To use the previous compression set the compressed_content_encoding configuration value to deflate
  • The jdbc-resultset instrumentation is now disabled by default in the newrelic.yml and will be disabled by default in all future releases.

Known Issues

Fixed in 5.1.1

  • gRPC

This release contains two bugs in the Java agent's gRPC instrumentation. We highly recommend customers using gRPC instrumentation to upgrade to this and or later agent versions.

  • References to transaction segments were not being removed correctly, which can cause a memory leak
  • The agent could cause the gRPC server listeners to fail to execute its completed and/or cancelled methods, which can cause unexpected behavior

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