Java agent release notesRSS

New features

• Adds support for Akka Http Core 10.2.0. Thank you jobicarter for reporting this issue.
• Adds support for gRPC 1.30.0. Thank you jef for submitting this request and trying it out.
• Adds support for map and flatmap async external calls in spring webflux framework. Previously the agent didn’t support client calls that occurred within the map or flatmap methods within the spring webflux framework. External calls such as serviceB and serviceC in the example below would not get reported to New Relic:

return serviceA.getData()
                .map(service -> Response.builder().service(service).build())
                .flatMap(serviceB::getData)
                .flatMap(serviceC::getData)
                .doOnNext(this::saveResponse);

• Adds support for Play 2.16.3. Many thanks to junder31 for this contribution.

Improvements

• The agent now supports parsing cgroup ids that do not contain docker-. Previously, the agent only supported docker cgroup ids that contained docker- in them, such as 1:cpu:/system.slice/docker-12345abcde.scope. The agent now supports parsing cgroup ids such as 1:cpu:/system.slice/crio-12345abcde.scope.

Fixes

• Prevents the agent from logging a timeout exception when using New Relic Edge with Infinite Tracing but the agent hasn’t sent spans in a while.
• Prevents the agent from logging a socket exception when trying to retrieve cloud provider information in a non-cloud environment.
• Adds New Relic EU certifications if ca_bundle_path is specified. This fix also came with the reintroduction of the use_private_ssl config, which can be set to add our agent certs to the truststore.

Support statement:

• New Relic recommends that you upgrade the agent regularly to ensure that you're getting the latest features and performance benefits. Additionally, older releases will no longer be supported when they reach end-of-life.

Improvements

Java 15

• The New Relic Java agent is now fully compatible with version 15 of the OpenJDK and Hotspot JDKs.

APIs

• New Segment.addCustomAttribute(...) APIs have been added for adding attributes directly to spans.
• Newrelic.addCustomParameter API now supports boolean values

Fixes

• The agent would try to read environment variables using system-property syntax. It will now log the correct syntax and ignore the incorrect value.

Notes

• The Java agent now includes the newrelic.com SSL certificate. In previous agent versions, applications using a custom Truststore would have to provide their certificate or use the use_private_ssl configuration which was removed in 6.0.0.
• Fixed an issue where applications could fail to start due to the agent attempting to access the JMX MBean server before it was initialized.

Improvements

• Register an MBean to expose the agent linking metadata.
• Support for okhttp 4.4 instrumentation.
• Improve reconnect behavior by not pinning to preconnected collector host instance.

Fixes

• Fix for asynchronous jar file collection. Collection of modules will no longer block the initial first harvest.
• Fix for Real Time Streaming. The first Real Time Streaming harvest will no longer be delayed by 30 seconds.
• Fix for reactor-netty verifier versions
• Fix race condition around connection pool exhaustion by separating pool timeout from connection timeout.

Note re: certificate bundle use_private_ssl

This release removed the certificate bundle from the agent artifact. Users previously using use_private_ssl should now use the ca_bundle_path configuration directive. For more information, see the Java v6.0.0 release on GitHub.

Improvements

• Agent Extensions The Java agent now provides a configuration to disable reloading extensions during runtime. extensions: reload_modified: false

• Spring Webflux The Java agent now provides updated instrumentation for reactor-netty-0.8.0+ to link the Transaction across threads. In previous agent versions, Transactions would be named /NettyDispatcher.

• Logging format To make the agent log easier to sort and read across locales, the date/time format has changed. The new format is log4j's ISO8610_OFFSET_DATE_TIME_HHMM and it is rendered like this in all locales:

  2020-07-10T08:33:00,328-0700 [9550 1] com.newrelic INFO: New Relic Agent: Loading configuration file "lib/./newrelic.yml"

  2020-07-10T08:33:00,423-0700 [9550 1] com.newrelic INFO: Using default collector host: collector.newrelic.com

  All other data on the log line remains the same.

Fixes

• Solr instrumentation could throw a NullPointerException when Query.toString() returned null.

Improvements

• Distributed tracing: With distributed tracing spans and/or Infinite Tracing, the Java agent will now incorporate additional information from the transaction event on to the root span event of the transaction.

• New TracedMethod.addCustomAttribute(...) APIs have been added for adding attributes directly to spans.

  Note: Any attribute include or exclude settings specific to transaction events should be applied to your span attributes configuration or your global attributes configuration.

• The Java agent now uses AWS's IMDS v2 to gather instance information.

Fixes

• Jetty JMX metrics would not report when running embedded in Spring Boot.
• Local configuration settings could revert to the default following an agent reconnect.

Notes

Bug fixes

This is a patch release that resolves an issue in 5.12.0. With distributed tracing enabled and Infinite Tracing disabled, a defect in version 5.12.0 causes spans to be omitted from distributed traces.

Any customers currently on 5.12.0 are strongly encouraged to upgrade to this 5.12.1 patch release.

New Features

Added support for Infinite Tracing on New Relic Edge.

Infinite Tracing observes 100% of your distributed traces and provides visualizations for the most actionable data so you have the examples of errors and long-running traces so you can better diagnose and troubleshoot your systems.

You configure your agent to send traces to a trace observer in New Relic Edge. You view your distributed traces through the New Relic’s UI. There is no need to install a collector on your network.

Infinite Tracing is currently available on a sign-up basis. If you would like to participate, please contact your sales representative.

Known Issue

In-process spans from Java services will not appear in distributed traces. All users should upgrade to 5.12.1.

Improvements

• Spring

  Spring PatchMapping annotation will now be used to start and name transactions.

• SQL

  Common Table Expressions in SQL Server, Postgres, and MySQL will report Datastore Metrics Datastore/<vendor>/statement/<first cte name>/with and Datastore/<vendor>/operation/with

• Distributed Tracing

  Span events now report error attributes if an error occurs: TransactionError events will also contain a corresponding spanId attribute indicating where the error occurred.

Fixes

• Solr Instrumentation could cause a NullPointerException in the agent logs for queries containing null parameters
• The JAVA_ENV environment variable configuration has been deprecated. Use NEW_RELIC_ENVIRONMENT to set the environment configuration for the agent to use
• The JDBC ResultSet instrumentation is now disabled by default internally. Applications configured solely via system properties and/or environment variables can enable with: -Dnewrelic.config.class_transformer.com.newrelic.instrumentation.jdbc-resultset.enabled=true or NEW_RELIC_CLASS_TRANSFORMER_COM_NEWRELIC_INSTRUMENTATION_JDBC-RESULTSET_ENABLED=TRUE
• The quartz_job configuration did not affect applications using Quartz-2.0 and higher

Improvements

• Java 14

  The New Relic Java agent is now fully compatible with version 14 of the OpenJDK and Hotspot JDKs.

• Java Flight Recorder

  A new Java Flight Recorder agent extension is now available to report real-time Java profiling metrics for application running on Java 14, including thread allocation, garbage collection and heap memory

Fixes

• The agent would log a NullPointerException when trying to accept distributed trace payloads before it had connected to rpm.newrelic.com
• Fixes an issue where W3C headers from New Relic’s .NET agent could produce malformed W3C traceparent headers
• The agent now logs ForceRestartExceptions at warning level rather than severe
• The noticeError API now supports reporting attributes of boolean and number types rather than their string representations

Improvements

• Support for W3C Trace Context, with easy upgrade from New Relic trace context

  Distributed tracing now supports W3C Trace Context headers for HTTP and gRPC protocols when distributed tracing is enabled. Our implementation can accept and emit both W3C trace header format and New Relic trace header format. This simplifies agent upgrades, allowing trace context to be propagated between services with older and current releases of New Relic agents. With this release, W3C trace header format will always be accepted and emitted. New Relic trace header format will be accepted, and you can optionally disable emission of the New Relic trace header format.

  The New Relic trace header format can disabled using this config or as documented here: newrelic.config.distributed_tracing.exclude_newrelic_header = true

  Also, see Known issues and workarounds.

• Cassandra

  • This release adds instrumentation for queries in versions 3.8+ of the Datastax Cassandra driver, including slow query support. You’ll see relevant breakdowns in the overview chart, entries on the Databases page, and segments in transaction traces.

• AWS Async SDK

  • AWS S3 - The Java agent now reports calls to Amazon S3 using the S3AsyncClient as external metrics
  • AWS SQS - The Java agent now reports calls to SqsAsyncClient as message queue metrics
  • AWS SNS - The Java agent now reports calls to Amazon SQS using SNSAsyncClient as message queue metrics

Fixes

• In an effort to modernize our language and improve clarity, we have renamed several config values. The old names will still work for now, but they will all be removed in the next major version.

  transaction_tracer.slow_query_whitelist is now transaction_tracer.collect_slow_queries_from

  strip_exception_messages.whitelist is now strip_exception_messages.allowed_classes

  command_parser.blacklist is now command_parser.disallow

• The strip_exception_messages config now excludes nested exception messages

• The agent will now use a lightweight tracer for SQL tracers beyond the segment_limit, improving performance in cases with a high number of segments.

• The agent would fail to report the Docker containerId for some combinations of systemd and Kubernetes

• The agent logger would fail to log with: “ERROR RollingFileAppender 'File': No TriggeringPolicy provided” when newrelic.config.log_file_count>1 and newrelic.config.isDaily=false and newrelic.config.log_limit_bytes=0

Known issues and workarounds

If a .NET agent is initiating distributed traces as the root service, you must update that .NET agent to version 8.24 or later before upgrading your downstream Java New Relic agents to this agent release.