Java Instrumentation

Open-source Java projects categorized as Instrumentation

Top 7 Java Instrumentation Projects

  • Byte Buddy

    Runtime code generation for the Java virtual machine.

    Project mention: Monkey-patching in Java | | 2023-09-21

    As seen above, the API exposes the user to low-level bytecode manipulation via byte arrays. It would be unwieldy to do it directly. Hence, real-life projects rely on bytecode manipulation libraries. ASM has been the traditional library for this, but it seems that Byte Buddy has superseded it. Note that Byte Buddy uses ASM but provides a higher-level abstraction.

  • JaCoCo

    :microscope: Java Code Coverage Library

    Project mention: Apache Maven JaCoCo Configuration | | 2023-10-27

    I will use here JaCoCo, where also the JaCoCo-Maven-lugin exists for the usage in your Maven builds. This article will show how to configure the code coverage to finally get the results for unit- and integration-tests.

  • Onboard AI

    Learn any GitHub repo in 59 seconds. Onboard AI learns any GitHub repo in minutes and lets you chat with it to locate functionality, understand different parts, and generate new code. Use it for free at

  • brave

    Java distributed tracing implementation compatible with Zipkin backend services.

    Project mention: Library For Propagating HTTP Headers | /r/Kotlin | 2023-03-28

    Check, it works with Zipkin, but You should be able to use it with other solutions.

  • client_java

    Prometheus instrumentation library for JVM applications

    Project mention: Prometheus JMX Exporter for Java17 | /r/PrometheusMonitoring | 2023-05-09

    After doing some research it appears this class references internal packages and therefore "makes it unusable for modern Java apps" ( ,

  • java-specialagent

    Automatic instrumentation for 3rd-party libraries in Java applications with OpenTracing.

  • jplusone

    Tool for automatic detection and asserting "N+1 SELECT problem" occurences in JPA based Spring Boot Java applications and finding origin of JPA issued SQL statements in general

  • javactrl

    Resumable exceptions and delimited continuations for JVM

    Project mention: JVM with multi-shot resumable exceptions | /r/ProgrammingLanguages | 2023-03-13
  • InfluxDB

    Collect and Analyze Billions of Data Points in Real Time. Manage all types of time series data in a single, purpose-built database. Run at any scale in any environment in the cloud, on-premises, or at the edge.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-10-27.

Java Instrumentation related posts


What are some of the best open-source Instrumentation projects in Java? This list will help you:

Project Stars
1 Byte Buddy 5,831
2 JaCoCo 3,858
3 brave 2,298
4 client_java 2,072
5 java-specialagent 182
6 jplusone 103
7 javactrl 26
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