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j4rs

v0.25.2 Growing

j4rs stands for 'Java for Rust' and allows effortless calls to Java code, from Rust

MIT OR Apache-2.0 Edition 2021
API bindings #java#jni

Quick Verdict

  • โœ“Actively maintained (updated 1d ago)
  • !Pre-1.0: API may have breaking changes
  • โœ“Trusted by 104 crates
  • โœ“Permissive license (MIT OR Apache-2.0)

Security

Checking security advisories...
Downloads
304.4K
Dependents
104
Releases
43
Size
5.8MB

Deep Insights

๐Ÿ“‰
Download decline

5.3K downloads in the last 30 days, down 31% from the previous period. May indicate migration to alternatives.

๐Ÿ”—
Moderate adoption

104 crates depend on j4rs. Reasonable ecosystem adoption, though not yet a core dependency.

๐Ÿ”ฌ
Pre-1.0 for over a year

Despite being 8+ years old, j4rs hasn't reached 1.0 yet. Expect potential API changes between versions.

๐Ÿ“
Large crate size

5.8MB is relatively large. May impact download and compile times.

๐ŸŒŸ
Used by top crates

Notable dependents include rskafka, connectorx, rust-keylock-ui, jmx, bioformats-rs. When high-quality crates choose j4rs, it's a strong quality signal.

Health Breakdown

Maintenance 18/25

Recency, release consistency, active ratio

Quality 10/25

Yanked ratio, deps, size, maturity, features

Community 10/20

Reverse deps, ownership, ecosystem

Popularity 7/15

Downloads, momentum, growth trend

Documentation 10/15

Docs, repo, license, metadata

Download Trend

Daily downloads ยท last 90 days
222/day avg-36%
05001K2/263/164/34/215/95/26

Top Dependents

Version Adoption

v0.20.0
44%
v0.22.0
29%
v0.21.0
15%
v0.23.1
7%
v0.19.0
5%

Release Timeline

10 releasessince 2024
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2026
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Feature Flags

default =["dep:libloading", "dep:java-locator"]

no-runtime-libloading

README

Loading README...

Maintainers

Dependencies
15
direct dependencies
Dependents
104
crates depend on j4rs

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