jattach/jattach
JVM Dynamic Attach utility observed · 2026-08-28
Health v2 · maintenance only
48/100
- Activity 55
- Release rhythm 8
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3809
- days_rel: n/a
- days_push: 271
- n_releases_24m: 0
Adoption not part of the score
1151 stars · 124 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
jattach is a tiny native utility that sends commands to a running JVM process via the HotSpot Dynamic Attach mechanism. It combines jmap, jstack, jcmd, and jinfo functionality in a single binary that works with just a JRE and supports Linux containers.
Use cases
- dump heap of a running java process without a JDK
- take a thread dump from a containerized JVM
- load a java agent jar into a running JVM
- print or modify JVM flags at runtime
- run jcmd commands against a JRE-only host
- get heap histogram of a live JVM process
When to choose
- you need jmap/jstack/jcmd functionality but only have a JRE installed
- you are troubleshooting JVMs inside slim Docker containers
- you want a single small static binary instead of a full JDK
When to avoid
- you need a full JDK toolchain for development
- you target non-HotSpot JVMs without attach support (limited OpenJ9 support only)
Facets
cli-tool · maturity stable
developer-tools monitoring tracing developer-tools windows bsd cli jvm jattach dynamic-attach jmap jstack jcmd jinfo heap-dump thread-dump containers command-line linux macos
2 sources
- readme: https://github.com/jattach/jattach · fetched 2026-08-28 · c1e3ff50c40b
- homepage: https://github.com/jattach/jattach/releases · fetched 2026-08-29 · 97fa681e9651
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| jattach/jattach | main | 48 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem