newrelic/newrelic-java-agent
Oct 2024 – Mar 2025
6 Months active
Languages Used
JavaScalaYAMLGradleKotlin
Technical Skills
APMAgent ConfigurationAgent DevelopmentAkka HTTPApache Pekko HTTPAsynchronous Programming
Kate Anderson
PROFILE
Kate Anderson
Worked on the newrelic/newrelic-java-agent repository, delivering features that enhanced observability, security, and maintainability for Java applications. Developed and refined instrumentation for HTTP frameworks and AWS SQS, expanded compatibility to JDK 24, and improved support for Scala and Kotlin through bytecode manipulation and language detection. Leveraged Java, Scala, and ASM to implement distributed tracing, JVM property obfuscation, and robust coroutine weaving. Focused on code quality by introducing feature flags, daemonizing profiling services, and strengthening test coverage. Addressed runtime compatibility issues and streamlined configuration management, resulting in a more reliable, testable, and maintainable agent for diverse backend environments.
Overall Statistics
Feature vs Bugs
94%Features
Repository Contributions
41Total
Bugs
1
Commits
41
Features
17
Lines of code
13,723
Activity Months6
Your Network
352 peopleWork History
March 2025
4 Commits • 2 Features
Mar 1, 2025March 2025 monthly summary focusing on key accomplishments in the New Relic Java agent space. Core focus this month was expanding instrumentation coverage and ensuring compatibility with newer runtimes and Scala. Delivered actionable improvements for AWS SQS instrumentation, extended Java agent support to JDK 24, and addressed class file handling for Scala 2.12 to prevent runtime issues on Java 11.
4 Commits • 2 Features
Mar 1, 2025March 2025 monthly summary focusing on key accomplishments in the New Relic Java agent space. Core focus this month was expanding instrumentation coverage and ensuring compatibility with newer runtimes and Scala. Delivered actionable improvements for AWS SQS instrumentation, extended Java agent support to JDK 24, and addressed class file handling for Scala 2.12 to prevent runtime issues on Java 11.
March 2025
February 2025
12 Commits • 4 Features
Feb 1, 2025February 2025: Focused on strengthening observability, reliability, and code quality in the Java agent. Delivered major instrumentation enhancements, introduced a feature flag for return stack processing, daemonized the JFR memory profiler for lifecycle reliability, and tightened testing and formatting standards. No major bug fixes were documented this month; efforts prioritized delivering robust instrumentation and maintainable code. Key outcomes include expanded server instrumentation across ember and blaze modules, safer and clearer return stack handling via a feature flag, improved lifecycle reliability for memory profiling, and improved code quality with targeted tests and formatting consistency.
February 2025
12 Commits • 4 Features
Feb 1, 2025February 2025: Focused on strengthening observability, reliability, and code quality in the Java agent. Delivered major instrumentation enhancements, introduced a feature flag for return stack processing, daemonized the JFR memory profiler for lifecycle reliability, and tightened testing and formatting standards. No major bug fixes were documented this month; efforts prioritized delivering robust instrumentation and maintainable code. Key outcomes include expanded server instrumentation across ember and blaze modules, safer and clearer return stack handling via a feature flag, improved lifecycle reliability for memory profiling, and improved code quality with targeted tests and formatting consistency.
January 2025
8 Commits • 2 Features
Jan 1, 2025January 2025 performance summary for newrelic/newrelic-java-agent: - Delivered significant Kotlin coroutine weaving improvements with focused return stack cleanup around invokeSuspend, enhanced inlining, and support tooling (ReturnInsnProcessor, ClearReturnAdapter). - Implemented and expanded comprehensive tests for various return scenarios including nested suspensions to strengthen reliability of coroutine handling. - Strengthened internal tooling and maintenance: added bytecode debugging aids, tidied debugging prints and comments, and updated tests to reflect Kotlin language support. - Expanded and refined weaver test coverage to reflect Kotlin usage, including bumping the number of expected source languages to Kotlin in tests. - Refined code quality and documentation to support ongoing maintenance and faster onboard of future changes. Business value: improved stability and performance of Kotlin coroutine support in the Java agent, reduced investigation time through better debugging tooling, and a more maintainable codebase with stronger test coverage.
8 Commits • 2 Features
Jan 1, 2025January 2025 performance summary for newrelic/newrelic-java-agent: - Delivered significant Kotlin coroutine weaving improvements with focused return stack cleanup around invokeSuspend, enhanced inlining, and support tooling (ReturnInsnProcessor, ClearReturnAdapter). - Implemented and expanded comprehensive tests for various return scenarios including nested suspensions to strengthen reliability of coroutine handling. - Strengthened internal tooling and maintenance: added bytecode debugging aids, tidied debugging prints and comments, and updated tests to reflect Kotlin language support. - Expanded and refined weaver test coverage to reflect Kotlin usage, including bumping the number of expected source languages to Kotlin in tests. - Refined code quality and documentation to support ongoing maintenance and faster onboard of future changes. Business value: improved stability and performance of Kotlin coroutine support in the Java agent, reduced investigation time through better debugging tooling, and a more maintainable codebase with stronger test coverage.
January 2025
December 2024
4 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for the repository newrelic/newrelic-java-agent, focusing on delivering features with clear business value, tracking improvements, and showcase of technical capabilities. Highlights include restoring Pekko CI test coverage, adding Scala 3 detection for accurate instrumentation reporting, and introducing a bytecode debug path for MultipartAppKt. No major bugs fixed documented this month.
December 2024
4 Commits • 3 Features
Dec 1, 2024December 2024 monthly summary for the repository newrelic/newrelic-java-agent, focusing on delivering features with clear business value, tracking improvements, and showcase of technical capabilities. Highlights include restoring Pekko CI test coverage, adding Scala 3 detection for accurate instrumentation reporting, and introducing a bytecode debug path for MultipartAppKt. No major bugs fixed documented this month.
November 2024
4 Commits • 3 Features
Nov 1, 2024November 2024: Focused on reducing maintenance surface, boosting observability, and tightening data privacy for the Java agent. Key changes include the complete removal of Pekko Http 3.1, enhanced distributed tracing logs for easier debugging across distributed transactions, and new YAML-based configuration controls for JVM arguments visibility and obfuscation, with cleanup of placeholder values.
4 Commits • 3 Features
Nov 1, 2024November 2024: Focused on reducing maintenance surface, boosting observability, and tightening data privacy for the Java agent. Key changes include the complete removal of Pekko Http 3.1, enhanced distributed tracing logs for easier debugging across distributed transactions, and new YAML-based configuration controls for JVM arguments visibility and obfuscation, with cleanup of placeholder values.
November 2024
October 2024
9 Commits • 3 Features
Oct 1, 2024Monthly summary for 2024-10 (newrelic/newrelic-java-agent): Delivered security and observability improvements, expanded HTTP framework instrumentation, and strengthened maintainability to accelerate delivery and reduce risk. Business value includes stricter JVM properties protection, improved APM coverage for Pekko HTTP (including Pekko HTTP 3.1), and a more readable, testable codebase that reduces maintenance burden and enables faster future iterations.
October 2024
9 Commits • 3 Features
Oct 1, 2024Monthly summary for 2024-10 (newrelic/newrelic-java-agent): Delivered security and observability improvements, expanded HTTP framework instrumentation, and strengthened maintainability to accelerate delivery and reduce risk. Business value includes stricter JVM properties protection, improved APM coverage for Pekko HTTP (including Pekko HTTP 3.1), and a more readable, testable codebase that reduces maintenance burden and enables faster future iterations.
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Quality Metrics
Correctness93.4%
Maintainability93.4%
Architecture90.4%
Performance86.4%
AI Usage20.6%
Skills & Technologies
Programming Languages
GradleJavaKotlinScalaYAML
Technical Skills
APMASMASM LibraryAWS SDKAgent ConfigurationAgent DevelopmentAkka HTTPApache Pekko HTTPAsynchronous ProgrammingBackend DevelopmentBuild AutomationBuild ConfigurationBytecode ManipulationCI/CDCode Documentation
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