goldmansachs/gs-collections

GS Collections has been migrated to the Eclipse Foundation, re-branded as Eclipse Collections. https://www.eclipse.org/collections/ observed · 2026-08-28

github.com/goldmansachs/gs-collections · homepage · Java observed · 2026-08-28

Health v2 · maintenance only

23/100

Activity 0
Release rhythm 8
Longevity 100

Flags: no_license

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: 5367
days_rel: n/a
days_push: 1262
n_releases_24m: 0

Full methodology

Adoption not part of the score

1822 stars · 276 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

GS Collections is a collections framework for Java with JDK-compatible List, Set, and Map implementations, a rich iteration API inspired by Smalltalk, and optimized container types like Bag, Multimap, and BiMap. The project has been migrated to the Eclipse Foundation and re-branded as Eclipse Collections, with only critical bug fixes ported back to this repository.

Use cases

replace ArrayList, HashSet, and HashMap with memory-optimized Java collections
write fluent functional iteration code over lists, sets, and maps in Java
use Bag, Multimap, and BiMap container types missing from the JDK
reduce duplication in collection iteration code with select, reject, and collect patterns
run parallel and lazy iteration over Java collections

When to choose

you are maintaining a legacy codebase already using GS Collections
you need the historical 7.x feature set before migrating

When to avoid

you are starting a new Java project - use Eclipse Collections instead
you need new features or ongoing development

Facets

library · maturity maintenance

developer-tools developer-tools jvm collections-framework java functional-programming eclipse-collections migrated algorithms

2 sources

readme: https://github.com/goldmansachs/gs-collections · fetched 2026-08-28 · b5c1de9104c3
homepage: https://www.eclipse.org/collections/ · fetched 2026-08-29 · 91228489c001

Member repositories

Repository	Role	Health v2
goldmansachs/gs-collections	main	23

For agents

markdown · JSON · MCP: product_card(name="goldmansachs/gs-collections")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem