Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-08-27 23:53 UTC

jwtk / jjwt

Java JWT: JSON Web Token for Java and Android

Java · GroovyApache-2.0★ 11,122 stars⑂ 1,393 forkssince Sep 2014View on GitHub ↗

#jwt #java #java-jwt #jjwt #jwt-token #jwt-tokens #jwt-authentication #jwt-auth #jwt-bearer-tokens #jwt-server #jwt-claims #jackson #json #jwe #jwk #jwk-thumbprint #jwkset #jws #jwk-thumbprint-uri #hacktoberfest

jwtk/jjwt holds a health index of 77 out of 100, placing it in the Good band. It scores highest on Community & Adoption (85/100) and lowest on Engineering Quality (61/100). It was last updated 3 days ago. A single contributor accounts for most of its recent work.

overall / 100

Good

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met

Excellent80-92Strong across the board; minor gaps

Good65-79Healthy; gaps are limited and manageable

Moderate50-64Acceptable with notable gaps; review recommended

Weak35-49Material weaknesses across several areas

At Risk20-34Significant weaknesses; adoption warrants caution

Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 66 is calibrated to 77 on the published index scale (record calibration 2026-08-02).

Ownership

jwtkOrganization

80 followers4 public repossince Sep 2014

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

Registry	Package	Version	Downloads / mo	Versions	Last publish
Maven	io.jsonwebtoken:jjwt-api	0.13.0	-	24	372 days ago
Maven	io.jsonwebtoken:jjwt-impl	0.13.0	-	24	372 days ago
Maven	io.jsonwebtoken:jjwt	0.13.0	-	20	372 days ago

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

61Moderate · 21% of overall

Development activity

62Moderate

How it's scored

36/36	Push recency — last push 3 days ago
4.8/36	Commit cadence — 7/52 weeks with commits
10.8/18	Commit volume — 15 commits in the last year
10/10	OpenSSF Scorecard: Maintained — 13 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10

Inputs used

commits_last_year	15
human_commit_share	0.94
days_since_last_push	3
active_weeks_last_year	7

Release discipline

60Moderate

How it's scored

27/27	Ships releases — 9 releases published
7.2/36	Release recency — latest release 371 days ago
19.8/27	Release cadence — a release every ~85.9 days
0/10	OpenSSF Scorecard: Signed-Releases — no data

Inputs used

releases_count	9
latest_release_tag	0.13.0
releases_from_tags	no
days_since_latest_release	371
mean_days_between_releases	85.9

Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

85Excellent · 17% of overall

Popularity & adoption

98Exceptional

How it's scored

60/60	Stars — 11,122 stars
25/25	Forks — 1,393 forks
13.5/15	Watchers — 270 watchers

Inputs used

forks	1,393
stars	11,122
watchers	270
growth_state	unverified
growth_factor_pct	100
growth_unverified_reason	no_history

Community health

70Good

How it's scored

22.5/22.5	README
22.5/22.5	License — recognized license (Apache-2.0)
18/18	CONTRIBUTING guide
0/13.5	Code of conduct
0/7.2	Issue template
0/6.3	PR template

Inputs used

has_readme	yes
has_license	yes
readme_badges	—
has_contributing	yes
has_issue_template	no
has_code_of_conduct	no
readme_badge_services	—
has_pull_request_template	no

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

63Moderate · 23% of overall

Maintainer resilience (bus factor)

40Weak

How it's scored

9/54	Bus factor — 1 contributor(s) cover half of all commits
7.4/22.5	Commit distribution — top contributor authored 67% of commits
13.5/13.5	Contributor breadth — 63 contributors
10/10	OpenSSF Scorecard: Contributors — project has 12 contributing companies or organizations

Inputs used

bus_factor	1
contributors_sampled	63
top_contributor_share	0.672

Issue & PR responsiveness

80Excellent

How it's scored

39.9/42	Issue resolution — 95% of issues closed
22.7/30	PR acceptance — 298/393 decided PRs merged
13/13	Newcomer PR acceptance — 1/1 first-time contributors' PRs merged in 30d
4.5/15	OpenSSF Scorecard: Code-Review — Found 8/26 approved changesets -- score normalized to 3

Inputs used

merged_prs	298
open_issues	30
closed_issues	584
prs_merged_7d	1
prs_decided_7d	1
prs_merged_30d	1
prs_decided_30d	3
issue_closed_ratio	0.951
closed_unmerged_prs	95
first_time_authors_30d	1
first_time_prs_merged_30d	1
first_time_prs_decided_30d	1

Ownership & stewardship

61Moderate

How it's scored

30/30	Ownership backing — organization-owned
0/20	Verified domain
13.7/25	Owner reach — 80 followers of jwtk
17.1/25	Track record — 4 public repos, account ~11 yr old

Inputs used

followers	80
owner_type	Organization
is_verified	no
owner_login	jwtk
public_repos	4
account_age_days	4,366

Package maintenance

79Good

How it's scored

25/25	Published & resolvable — 3 package(s) on maven
14/35	Publish recency — latest publish 372 days ago
20/20	Version history — 24 published versions
20/20	Not deprecated — active, not deprecated or yanked

Inputs used

packages	io.jsonwebtoken:jjwt-api, io.jsonwebtoken:jjwt-impl, io.jsonwebtoken:jjwt
ecosystems	maven
any_deprecated	no
min_days_since_publish	372

Engineering Quality

Are baseline engineering and documentation practices in place?

61Moderate · 19% of overall

Engineering practices

62Moderate

How it's scored

24/24	CI workflows — 1 workflow(s)
24/24	Tests present
0/16	Linter config
0/9.6	Pre-commit hooks
0/6.4	.editorconfig
14/20	OpenSSF Scorecard: CI-Tests — 20 out of 26 merged PRs checked by a CI test -- score normalized to 7

Inputs used

has_ci	yes
has_tests	yes
has_editorconfig	no
has_linter_config	no
has_precommit_config	no

Documentation

60Moderate

How it's scored

30/30	README
0/25	Documentation directory
0/15	Documentation / homepage site
10/10	Repository description
10/10	Topics — 20 topics
10/10	Wiki

Inputs used

topics	jwt, java, java-jwt, jjwt, jwt-token, jwt-tokens, jwt-authentication, jwt-auth, jwt-bearer-tokens, jwt-server, jwt-claims, jackson, json, jwe, jwk, jwk-thumbprint, jwkset, jws, jwk-thumbprint-uri, hacktoberfest
has_wiki	yes
homepage	—
docs_site	—
has_readme	yes
has_docs_dir	no
has_description	yes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

64Moderate · 16% of overall

Security posture

61Moderate

How it's scored

7.5/7.5	Binary-Artifacts — no binaries found in the repo
0/7.5	Branch-Protection — branch protection not enabled on development/release branches
1.8/2.5	CI-Tests — 20 out of 26 merged PRs checked by a CI test -- score normalized to 7
0/2.5	CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
2.2/7.5	Code-Review — Found 8/26 approved changesets -- score normalized to 3
2.5/2.5	Contributors — project has 12 contributing companies or organizations
10/10	Dangerous-Workflow — no dangerous workflow patterns detected
7.5/7.5	Dependency-Update-Tool — update tool detected
0/5	Fuzzing — project is not fuzzed
2.5/2.5	License — license file detected
7.5/7.5	Maintained — 13 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
0/5	Packaging — no data
5/5	Pinned-Dependencies — all dependencies are pinned
0/5	SAST — SAST tool is not run on all commits -- score normalized to 0
2/5	Security-Policy — security policy file detected
0/7.5	Signed-Releases — no data
0/7.5	Token-Permissions — detected GitHub workflow tokens with excessive permissions
7.5/7.5	Vulnerabilities — 0 existing vulnerabilities detected

Inputs used

source	openssf_scorecard
checks_evaluated	16
scorecard_version	v5.5.0
checks_inconclusive	2
scorecard_aggregate	6.1

Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.

Dependency advisories

76Good

How it's scored

35/35	Direct dependencies free of known advisories — no direct dependency carries a known advisory
7.4/25	Indirect dependencies free of known advisories — 2 affected: com.fasterxml.jackson.core:jackson-core 2.12.7 (high 7.5), com.fasterxml.jackson.core:jackson-databind 2.12.7.1 (high 8.1)
33.7/40	No advisories left outstanding — 1 advisory-carrying package(s) unaddressed past 90 days; oldest published 446 days ago

Inputs used

source	osv
advisories	8
affected_packages	2
assessed_packages	6
unassessed_packages	0
affected_by_severity	high 2
direct_affected_packages	0

Matched the maven:io.jsonwebtoken:jjwt@0.13.0 runtime dependency closure — what installing the published package pulls in — 6 packages. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

62Moderate · 4% of overall

Agent context & guidance

40Weak

How it's scored

0/45	Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
0/15	Machine-readable docs (llms.txt)
40/40	Legible commit history — 83 of 94 human commits state their intent (structured subject or explanatory body)

Inputs used

has_llms_txt	no
llms_txt_url	—
legible_history_share	0.883
agent_instruction_files	—
agent_instruction_max_bytes	—

Verify loop (build / test / typecheck)

64Moderate

How it's scored

12.6/18	One-command bootstrap — api/pom.xml, bom/pom.xml, extensions/gson/pom.xml (toolchain convention, no task runner)
22/22	Automated tests
0/11	Lint / format config
11/11	Static type checking — Java (statically typed)
0/10	Reproducible environment
0/10	Demonstrated agent practice — no agent-authored commits among the last 100
8/8	Automated maintenance — 6 of the last 100 commits are automated dependency updates
10/10	OpenSSF Scorecard: Pinned-Dependencies — all dependencies are pinned

Inputs used

has_nix	no
has_tests	yes
lockfiles	—
has_dockerfile	no
typed_language	yes
bootstrap_files	—
has_devcontainer	no
has_linter_config	no
typecheck_configs	—
agent_commit_share	0
toolchain_manifests	api/pom.xml, bom/pom.xml, extensions/gson/pom.xml, extensions/jackson/pom.xml, extensions/orgjson/pom.xml, extensions/pom.xml, impl/pom.xml, pom.xml, tdjar/pom.xml
dependency_bot_commit_share	0.06

Code legibility for models

100Exceptional

How it's scored

45/45	Type-checkable code — Java (statically typed)
54.9/55	Manageable file sizes — 1/407 source files over 60KB

Inputs used

primary_language	Java
largest_source_bytes	66,576
source_files_sampled	407
oversized_source_files	1

Key facts

11,122GitHub stars

63contributors

15commits, last 12 months

3days since last push

9releases

1bus factor

30open issues

Mavenpackage ecosystems

Data collection warnings

Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 1,393 ⇿

0Stars

1,393Forks

9Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

Only the most recent history is shown — this repository exceeds the collection window, so the earliest history is not captured.

Major 0Minor 2Patch 7

Each point covers 8 days.

OpenSSF Scorecard 6.1 / 10

6.1aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-08-27 23:52 UTC

10	Binary-Artifacts	no binaries found in the repo
0	Branch-Protection	branch protection not enabled on development/release branches
7	CI-Tests	20 out of 26 merged PRs checked by a CI test -- score normalized to 7
0	CII-Best-Practices	no effort to earn an OpenSSF best practices badge detected
3	Code-Review	Found 8/26 approved changesets -- score normalized to 3
10	Contributors	project has 12 contributing companies or organizations
10	Dangerous-Workflow	no dangerous workflow patterns detected
10	Dependency-Update-Tool	update tool detected
0	Fuzzing	project is not fuzzed
10	License	license file detected
10	Maintained	13 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 10
n/a	Packaging	packaging workflow not detected
10	Pinned-Dependencies	all dependencies are pinned
0	SAST	SAST tool is not run on all commits -- score normalized to 0
4	Security-Policy	security policy file detected
n/a	Signed-Releases	no releases found
0	Token-Permissions	detected GitHub workflow tokens with excessive permissions
10	Vulnerabilities	0 existing vulnerabilities detected

Direct dependencies 23

Registry	Package	Version constraint	Manifest
Maven	io.jsonwebtoken:jjwt	`0.14.0-SNAPSHOT`	bom/pom.xml
Maven	io.jsonwebtoken:jjwt-api	`0.14.0-SNAPSHOT`	bom/pom.xml
Maven	io.jsonwebtoken:jjwt-impl	`0.14.0-SNAPSHOT`	bom/pom.xml
Maven	io.jsonwebtoken:jjwt-orgjson	`0.14.0-SNAPSHOT`	bom/pom.xml
Maven	io.jsonwebtoken:jjwt-gson	`0.14.0-SNAPSHOT`	bom/pom.xml
Maven	io.jsonwebtoken:jjwt-jackson	`0.14.0-SNAPSHOT`	bom/pom.xml
Maven	io.jsonwebtoken:jjwt-api	`—`	impl/pom.xml
Maven	io.jsonwebtoken:jjwt-api	`${project.version}`	pom.xml
Maven	io.jsonwebtoken:jjwt-impl	`${project.version}`	pom.xml
Maven	io.jsonwebtoken:jjwt-jackson	`${project.version}`	pom.xml
Maven	io.jsonwebtoken:jjwt-orgjson	`${project.version}`	pom.xml
Maven	io.jsonwebtoken:jjwt-gson	`${project.version}`	pom.xml
Maven	com.fasterxml.jackson.core:jackson-databind	`${jackson.version}`	pom.xml
Maven	org.json:json	`${orgjson.version}`	pom.xml
Maven	com.google.code.gson:gson	`${gson.version}`	pom.xml
Maven	org.apache.maven.scm:maven-scm-provider-gitexe	`2.1.0`	pom.xml
Maven	com.mycila:license-maven-plugin-git	`${maven.license.version}`	pom.xml
Maven	${project.groupId}:${project.artifactId}	`${jjwt.previousVersion}`	pom.xml
Maven	org.apache.groovy:groovy	`${groovy.version}`	pom.xml
Maven	jakarta.xml.bind:jakarta.xml.bind-api	`2.3.3`	pom.xml
Maven	io.jsonwebtoken:jjwt-api	`—`	tdjar/pom.xml
Maven	io.jsonwebtoken:jjwt-impl	`—`	tdjar/pom.xml
Maven	io.jsonwebtoken:jjwt-jackson	`—`	tdjar/pom.xml

All dependencies 55

Full resolved dependency set from the GitHub dependency graph: 21 direct and 34 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

Registry	Package	Version	Relation
Maven	com.fasterxml.jackson.core:jackson-databind	`—`	direct
Maven	com.fasterxml.jackson.core:jackson-databind	`2.22.1`	direct
Maven	com.google.code.gson:gson	`—`	direct
Maven	com.google.code.gson:gson	`2.13.1`	direct
Maven	com.mycila:license-maven-plugin-git	`4.6`	direct
Maven	io.jsonwebtoken:jjwt	`0.14.0-SNAPSHOT`	direct
Maven	io.jsonwebtoken:jjwt-api	`—`	direct
Maven	io.jsonwebtoken:jjwt-api	`0.14.0-SNAPSHOT`	direct
Maven	io.jsonwebtoken:jjwt-gson	`—`	direct
Maven	io.jsonwebtoken:jjwt-gson	`0.14.0-SNAPSHOT`	direct
Maven	io.jsonwebtoken:jjwt-impl	`—`	direct
Maven	io.jsonwebtoken:jjwt-impl	`0.14.0-SNAPSHOT`	direct
Maven	io.jsonwebtoken:jjwt-jackson	`—`	direct
Maven	io.jsonwebtoken:jjwt-jackson	`0.14.0-SNAPSHOT`	direct
Maven	io.jsonwebtoken:jjwt-orgjson	`—`	direct
Maven	io.jsonwebtoken:jjwt-orgjson	`0.14.0-SNAPSHOT`	direct
Maven	jakarta.xml.bind:jakarta.xml.bind-api	`2.3.3`	direct
Maven	org.apache.groovy:groovy	`4.0.31`	direct
Maven	org.apache.maven.scm:maven-scm-provider-gitexe	`2.1.0`	direct
Maven	org.json:json	`—`	direct
Maven	org.json:json	`20250517`	direct
Maven	com.github.siom79.japicmp:japicmp-maven-plugin	`—`	indirect
Maven	com.github.siom79.japicmp:japicmp-maven-plugin	`0.23.1`	indirect
Maven	com.mycila:license-maven-plugin	`4.6`	indirect
Maven	io.jsonwebtoken.coveralls:coveralls-maven-plugin	`4.4.1`	indirect
Maven	junit:junit	`4.13.2`	indirect
Maven	org.apache.felix:maven-bundle-plugin	`5.1.9`	indirect
Maven	org.apache.maven.plugins:maven-compiler-plugin	`3.14.0`	indirect
Maven	org.apache.maven.plugins:maven-enforcer-plugin	`3.6.1`	indirect
Maven	org.apache.maven.plugins:maven-failsafe-plugin	`3.1.2`	indirect
Maven	org.apache.maven.plugins:maven-gpg-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-gpg-plugin	`3.2.8`	indirect
Maven	org.apache.maven.plugins:maven-jar-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-jar-plugin	`3.4.2`	indirect
Maven	org.apache.maven.plugins:maven-javadoc-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-javadoc-plugin	`3.11.3`	indirect
Maven	org.apache.maven.plugins:maven-release-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-release-plugin	`3.1.1`	indirect
Maven	org.apache.maven.plugins:maven-resources-plugin	`3.3.1`	indirect
Maven	org.apache.maven.plugins:maven-shade-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-shade-plugin	`3.6.0`	indirect
Maven	org.apache.maven.plugins:maven-source-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-source-plugin	`3.3.1`	indirect
Maven	org.apache.maven.plugins:maven-surefire-plugin	`—`	indirect
Maven	org.apache.maven.plugins:maven-surefire-plugin	`3.1.2`	indirect
Maven	org.bouncycastle:bcpkix-jdk18on	`1.84`	indirect
Maven	org.bouncycastle:bcprov-jdk18on	`1.84`	indirect
Maven	org.codehaus.gmavenplus:gmavenplus-plugin	`4.2.1`	indirect
Maven	org.easymock:easymock	`5.6.0`	indirect
Maven	org.openclover:clover-maven-plugin	`—`	indirect
Maven	org.openclover:clover-maven-plugin	`4.5.2`	indirect
Maven	org.powermock:powermock-api-easymock	`2.0.9`	indirect
Maven	org.powermock:powermock-core	`2.0.9`	indirect
Maven	org.powermock:powermock-module-junit4	`2.0.9`	indirect
Maven	org.sonatype.plugins:nexus-staging-maven-plugin	`1.6.14`	indirect

Dependency advisories 2

Installing maven:io.jsonwebtoken:jjwt@0.13.0 pulls in 6 packages, direct and transitive: 2 carry known advisories, of which 0 are direct dependencies.

Package	Version	Relation	Severity	Advisories	Fixed in
com.fasterxml.jackson.core:jackson-core	`2.12.7`	indirect	high	3	`3.1.4`
com.fasterxml.jackson.core:jackson-databind	`2.12.7.1`	indirect	high	5	`3.1.4`

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — Maven.

Software health index

Score profile

Ownership

Package ecosystems

Metrics by category

Key facts

Data collection warnings

More detail

Feedback

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