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Java agent release notesRSS

July 24, 2019
Java agent v5.3.0

Download this agent version

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

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

April 24, 2019
Java agent v5.0.0

Improvements

gRPC

The Java agent now supports gRPC. You will now see transactions, errors, external calls, and distributed traces for all of your gRPC-based clients and services.

Vert.x-3.7

The Java agent now supports Vert.x 3.7. The agent instruments Vert.x Web, Vert.x Core, and Vert.x HTTP client. With this instrumentation, the agent will identify and name your transactions based on Vert.x web routing paths. The agent will also time web handlers, track async handlers, and external calls made with Vert.x HTTP client.

OkHttp 3.14.0

This release adds support for OkHttp 3.14.x. You will now see OkHttp 3.14 calls as external calls in New Relic.

spray-can

The Java agent now supports the spray-can client. The agent will now capture outbound http calls made with the spray-can client and report them as external calls and/or distributed traces.

Embedded Derby 10.15.1.3

The Java agent has expanded support for Derby JDBC up to and including version 10.15.1.3.

JVM monitoring

The Java agent now reports JMX stats for off-heap direct byte buffers. These metrics are available via the JVM page

recordCustomEvent API

The recordCustomEvent API has been updated to accept Map<String,?> as a second parameter instead of Map<String,Object>, allowing maps such as Map<String,String> to be passed without having to cast the type of the map's value.

Fixes

  • The agent no longer requires a newrelic.yml even when the app_name and license_key configuration options are set via environment variables and/or system properties. For more information, see the Java environment variables documentation.
  • HttpSessions JMX metrics were not reporting for Websphere Liberty Profile applications.
  • The transaction_events.max_samples_stored configuration value in the newrelic.yml would incorrectly override the system properties or environment variable values.
  • Applications running on WildFly 12 - 15 would fail start with NoClassDefFound errors for Java agent classes.
  • Play applications where external calls inside of future callbacks using async-http-client would not be recorded.
  • Setting log_limit_in_kbytes would result in the agent not logging to the agent log file if log_file_count was also set to less than 2.
  • Webflux status codes which were not recognized by Spring Webflux caused a 500 status code to be returned and an exception in application logs.

Known Issues

gRPC: Fixed in 5.1.1

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.

Deprecation Notes

Self installer

The New Relic Java agent's self-installer has been removed in order to provide a more consistent user experience. To install the Java agent, add the full path to the newrelic.jar to the -javaagent flag in your JVM options. For more information on installing the agent on specific application servers, Docker, Maven, or Gradle, see the JVM argument documentation.

Deprecated instrumentation

The following instrumentation modules have been moved out of the default Java agent, and are now provided as a separate download. To continue using these modules, just add them to the agent's extensions directory in your newrelic folder or wherever your extensions directory is configured.

March 27, 2019
Java agent v4.12.1

Fixes

  • Fixed an issue where an exception would be thrown during agent initialization which caused the application to shut down when the log file is not writable. In previous agent versions there was an undocumented behavior where the agent would log to STDOUT instead.
  • Fixed a regression where a NullPointerException would be logged and instrumentation would not be applied when using an XML extension with comments preceding the instrumentation section.
  • Fixed issue where setting the log_limit_in_kbytes greater than 0 and log_file_count equal to 1 would result in the agent not logging to the agent log file.

March 20, 2019
Java agent v4.12.0

Improvements

  • Kafka-clients

    The Java agent now supports the kafka-clients library. The agent will automatically report up Kafka metrics to New Relic.

    Optional support is provided for reporting Kafka metrics as Insights events and for enabling distributed tracing. More information can be found in the New Relic documentation.

  • Java 12, Coretto and Zulu

    The New Relic Java agent is now fully compatible with Java 12. This release also adds support for the Amazon Coretto and Azul Zulu JDKs.

New APIs

  • Added ignoreErrors() to the Transaction API, allowing all errors reported within a specific transaction to be ignored.
  • Added addCustomParameters(Map<String, Object>) API, allowing multiple custom parameters to be added to a transaction at once.
  • Updated the noticeError() API documentation to clarify that when the api is invoked multiple times while in a transaction, only the first error will be reported.

Deprecated APIs

  • The custom transport channel API is now deprecated in favor of the Distributed Tracing API.
  • The skipTransactionTrace attribute on the @Trace annotation is now deprecated. The excludeFromTransactionTrace attribute should be used in its place.

Deprecated Instrumentation

  • JetS3t

    Removed built-in instrumentation for JetS3t. The agent will continue to report external calls made with the JetS3t client.

Fixes

  • Fixed an issue with Jax-RS subresource transaction naming where the root path is duplicated when a nested resource structure is used. This could lead to transactions being named incorrectly for incoming requests to a Jax-RS framework.
  • Fixed a bug in the agent's Jetty metric sampling that could prevent Jetty specific metrics from being reported when the number of threads returned by JMX is zero.
  • Fixed a NullPointerException that can occur when cross application tracing configuration is explicitly disabled.
  • Fixed an issue where transactions would be named incorrectly when using custom Akka Http stream directives or a pathEnd directive followed by a Segment directive.
  • Fixed an issue where certain usages of Akka and Scala would prevent transactions from being reported to New Relic. This would also manifest as a NullPointerException in the agent log at finest level.
  • The Java agent no longer includes Jaxb or Logback dependencies. A new dependency on Log4j2 has been added

February 12, 2019
Java agent v4.11.0

Improvements:

  • Vert.x 3.6

    The Java agent now provides visibility into your applications built using the Vert.x 3.6. The agent instruments Vert.x Web, Vert.x Core, and Vert.x HTTP client. With this instrumentation, the agent will identify and name your transactions based on Vert.x web routing paths. The agent will also time web handlers, track async handlers, and external calls made with Vert.x HTTP client.

  • Wildfly 12-15

    The agent now supports Wildfly versions 12 through 15.

Fixes:

  • Fixed an issue where applications using neo4j bolt JDBC driver could fail to start.
  • The log_daily configuration did not respect documented precedence.
  • Fixed a bug that caused the Spring Webflux instrumentation to fail to apply for spring-webflux versions greater than 5.0.*.
  • Fixed an issue where transactions would not be fully reported if distributed_tracing.enabled = true and cross_application_tracer.enabled = false.
  • Fixed an issue where Akka Http application would not start with the agent attached when using sbt.
  • Fixed an issue where the agent could fail to determine the hostname .

Known Issues

Fixes in 4.12.0

  • Fixed an issue with Jax-RS subresource transaction naming where the root path is duplicated when a nested resource structure is used. This could lead to transactions being named incorrectly for incoming requests to a Jax-RS framework.
  • Fixed a bug in the agent's Jetty metric sampling that could prevent Jetty specific metrics from being reported when the number of threads returned by JMX is zero.
  • Fixed a NullPointerException that can occur when cross application tracing configuration is explicitly disabled.
  • Fixed an issue where transactions would be named incorrectly when using custom Akka Http stream directives or a pathEnd directive followed by a Segment directive.
  • Fixed an issue where certain usages of Akka and Scala would prevent transactions from being reported to New Relic. This would also manifest as a NullPointerException in the agent log at finest level.
  • The Java agent no longer includes Jaxb or Logback dependencies. A new dependency on Log4j2 has been added.

Fixes in 4.12.1

  • Fixed an issue where an exception would be thrown during agent initialization which caused the application to shut down when the log file is not writable. In previous agent versions there was an undocumented behavior where the agent would log to STDOUT instead.
  • Fixed a regression where a NullPointerException would be logged and instrumentation would not be applied when using an XML extension with comments preceding the instrumentation section.
  • Fixed issue where setting the log_limit_in_kbytes greater than 0 and log_file_count equal to 1 would result in the agent not logging to the agent log file.

Fixes in 5.0.0

  • The agent no longer requires a newrelic.yml even when the 'app_name' and 'license_key' configuration options are set via environment variables and/or system properties. For more details, see [Java agent configuration(]https://docs.newrelic.com/docs/agents/java-agent/configuration/java-agen...).
  • HttpSessions JMX metrics were not reporting for Websphere Liberty Profile applications.
  • The transaction_events.max_samples_stored configuration value in the newrelic.yml would incorrectly override the system properties or environment variable values
  • Applications running on Wildfly 12 - 15 would fail start with NoClassDefFound errors for Java agent classes.
  • Play applications where external calls inside of future callbacks using async-http-client would not be recorded.
  • Setting log_limit_in_kbytes would result in the agent not logging to the agent log file if log_file_count was also set to less than 2.
  • Webflux status codes which were not recognized by Spring Webflux caused a 500 status code to be returned and an exception in application logs.

Fixes in 5.1.0

  • Fixed an issue in the Scala instrumentation that would cause an Java.lang.IllegalArgumentException: to be thrown when the Lightbend Cinnamon agent is in use.
  • Fixed 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.
  • Fixed an issue where the agent’s Kafka instrumentation would report WakeupExceptions as errors in New Relic. These exceptions will no longer be reported.
  • Fixed 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.

Fixes in 5.2.0

  • Fixed 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.

Fixes in 5.3.0

  • 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.
  • 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()".
  • The ignore_status_codes system property was not getting applied correctly.

Fixes in 5.4.0

  • 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 Enums or other custom types.

Fixes in 5.6.0

  • 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.

Fixes in 5.7.0

  • 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.

Fixes in 5.8.0

  • 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.

Fixes in 5.9.0

  • 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

Fixes in 5.10.0

  • In an effort to modernize our language and improve clarity, we have renamed several configuration 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

January 23, 2019
Java agent v4.10.0

Improvements

  • This release adds Transaction event attributes that provide context between your Kubernetes cluster and services. For details on the benefits (public beta coming soon) see this blog post.
  • The Java agent now supports setting all configuration options via Environment variables. Environment variables will take precedence over newrelic.yml but cannot be updated dynamically since they are read statically on application startup.
  • Adds instrumentation for the Akka HTTP client, versions 10.0 to 10.1.x. This client is used via the Http().singleRequest() method and the agent will now automatically capture these requests as External metrics.
  • Support for MySQL connector 8.0.x
  • Adds official support for Akka Http 10.1.6
  • Span event attributes can now be filtered using include / exclude rules.
span_events:
enabled: true
attributes:
include:
exclude:
  • Rename transaction trace segment parameter key from uri to http.url and rename trace key from database_name to db.instance.

Fixes

  • Fixes an issue where Akka HTTP instrumentation can cause higher than normal memory usage when an async Directive is used in the route for an Akka HTTP based app. This can also result in mis-named transactions for any paths underneath the custom Directive.

December 18, 2018
Java agent v4.9.0

Improvements

  • The 'request.uri' attribute is now included in Transaction events and corresponding Transaction Error events. As a result this attribute can now be queried in New Relic. It may be excluded via the exclude list in the attributes section of the yaml config file. It is also excluded when High-security mode is enabled.
  • Distributed Tracing can now be enabled at the same time as auto app naming. Each application created by this setting will share an event reservoir for Distributed Tracing.
  • Updates Akka HTTP instrumentation to support the newest version of Akka HTTP, 10.1.5 and above.

Fixes

  • Fixes a possible NullPointerException that could occur in Hystrix instrumentation and propagate into application code.

  • Fixes a bug where usage of the HttpsURLConnection getInputStream() method could cause some scoped external metrics to be double-counted.

  • Fixes an issue that prevents the agent from connecting to an HTTP proxy that does not requires a username or password.

    When configured to use an HTTP proxy by using proxy_host and proxy_port, the agent would look for proxy_username and proxy_password. If those weren't provided, the agent would use an empty string for proxy_username and proxy_password.

  • Prevents unnecessary dependencies from showing up in the newrelic-agent pom

  • Fixes deadlocks occurring in agent 4.7.0 that were caused by instrumentation of classes in the sun/nio/cs/.* package

  • Fixes an issue where custom jmx metrics with '.'s in the attribute name would not get recorded.

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