TheAlgorithms/Java

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30 of your 48 findings came from Repobility's proprietary detections. ✓ Repobility tags below mark them.

Scan timing: clone 3.14s · analysis 16.3s · 4.8 MB · GitHub API rate-limit (preflight)

https://github.com/TheAlgorithms/Java · scanned 2026-06-05 08:56 UTC (5 days, 18 hours ago) · 10 languages

93 raw signals (45 security + 48 graph) 93rd percentile · Java · large (100-500K LoC)

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UNIFIED Repobility · multi-layer engine · AI coders

Complete repo analysis

Last scanned 5 days, 18 hours ago · v2 · 24 actionable findings from 2 signal sources. 45 repeated signals grouped for readability. Security checks, system graph analysis, and verified AI-agent feedback are merged into one review queue.

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88.9% cov · 8 findings

Score breakdown â 2026-05-18-v5

Component	Sub-score	Weight	Contribution
`structure_score`	85.0	0.15	12.75
`security_score`	95.8	0.25	23.95
`testing_score`	80.0	0.20	16.00
`documentation_score`	89.0	0.15	13.35
`practices_score`	77.0	0.15	11.55
`code_quality`	75.5	0.10	7.55
Overall		1.00	85.1

Severity distribution — click a segment to filter

Active filters: excluding tests × Reset all

Severity: Critical 0 High 3 Medium 8 Low 4 9-Layer: Software Security Quality Integrity Frontend Hardware Data Network Cicd Source: Security checks 16 System graph 8 Crowd 0 Layer: Cicd 5 Quality 11 Software 2 Api 1 Hardware 3 Frontend 1 Security 1

Exclude dismissed / FP Exclude test files

Scan summary Quality grade A- (85/100). Dimensions: security 96, maintainability 85. 45 findings (25 security). 135,567 lines analyzed.

Showing 14 of 24 actionable findings. 69 raw detector signals were grouped into reader-sized issues. Click TP / FP to vote on a finding's accuracy — votes adjust the confidence weighting and improve detection across the platform.

high Security checks software dependencies conf 0.90 ✓ Repobility Dockerfile FROM `gitpod/workspace-java-21:2025-11-14-10-05-32` not pinned by digest

`FROM gitpod/workspace-java-21:2025-11-14-10-05-32` resolves the tag at build time. The registry CAN re-push a different image for the same tag, so every build is potentially different. Production images should pin to `image@sha256:...` for reproducibility + supply-chain integrity.

.gitpod.dockerfile:1

high Security checks software dependencies conf 0.90 ✓ Repobility Dockerfile FROM `mcr.microsoft.com/vscode/devcontainers/java:1.1.0-` not pinned by digest

`FROM mcr.microsoft.com/vscode/devcontainers/java:1.1.0-` resolves the tag at build time. The registry CAN re-push a different image for the same tag, so every build is potentially different. Production images should pin to `image@sha256:...` for reproducibility + supply-chain integrity.

.devcontainer/Dockerfile:5

medium Security checks cicd CI/CD security conf 0.90 ✓ Repobility 19 occurrences GitHub Action is tag-pinned rather than SHA-pinned

Action `codecov/codecov-action` pinned to mutable ref `@v6` uses a mutable tag or branch. Pin external actions to a reviewed full commit SHA when the workflow is security-sensitive.

5 files, 19 locations

.github/workflows/codeql.yml:33, 41, 58, 63 (8 hits)

.github/workflows/build.yml:23, 31 (4 hits)

.github/workflows/update-directorymd.yml:22, 36 (4 hits)

.github/workflows/infer.yml:27 (2 hits)

.github/workflows/clang-format-lint.yml:15

CI/CD securitySupply chainGitHub Actions

low Security checks cicd CI/CD security conf 0.90 ✓ Repobility 20 occurrences GitHub Action is tag-pinned rather than SHA-pinned

Action `actions/checkout` pinned to mutable ref `@v6` uses a mutable tag or branch. Pin external actions to a reviewed full commit SHA when the workflow is security-sensitive.

8 files, 20 locations

.github/workflows/codeql.yml:24, 27, 55 (6 hits)

.github/workflows/build.yml:11, 13 (3 hits)

.github/workflows/infer.yml:18, 21 (3 hits)

.github/workflows/close-failed-prs.yml:18 (2 hits)

.github/workflows/project_structure.yml:18, 19 (2 hits)

.github/workflows/update-directorymd.yml:17 (2 hits)

.github/workflows/clang-format-lint.yml:14

.github/workflows/stale.yml:14

CI/CD securitySupply chainGitHub Actions

medium Security checks quality Quality conf 1.00 [SEC087] JS: weak Math.random for crypto: Math.random() is not cryptographically secure; using it for tokens/keys/nonces is predictable. Ported from gosec G404 / eslint detect-pseudoRandomBytes concept (Apache-2.0).

Use `crypto.randomBytes(32).toString('hex')` (Node) or `crypto.getRandomValues()` (browser).

src/main/java/com/thealgorithms/randomized/RandomizedQuickSort.java:38

medium Security checks cicd CI/CD security conf 0.90 Docker build context has no .dockerignore

Without .dockerignore, build context can include source history, local env files, dependencies, and generated artifacts.

.dockerignore CI/CD securitycontainers

high Security checks cicd CI/CD security conf 0.82 Docker final stage has no non-root USER

Docker images run as root unless the image or Dockerfile switches to a non-root user.

.devcontainer/Dockerfile:5 CI/CD securitycontainers

medium System graph hardware Security conf 1.00 Dockerfile runs as root: .devcontainer/Dockerfile

No non-root USER set. Containers running as root expand the blast radius of any vulnerability inside the image.

Container

medium System graph cicd CI/CD security conf 1.00 GitHub Actions workflow grants broad write permissions

CI tokens with write permissions increase blast radius when an action, dependency, or PR workflow is compromised. Prefer job-level least-privilege permissions.

.github/workflows/update-directorymd.yml CI/CD securitySupply chainGithub actions

medium System graph security Coverage conf 1.00 No auth library detected

The scanner did not find any standard auth library (JWT, OAuth, NextAuth, Auth0, etc.). Either auth lives in custom code, in a separate service, or is missing.

auth

medium System graph quality Tests conf 1.00 Very low test-to-source ratio

0 test file(s) for 1 source file(s) (ratio 0.00). Consider adding integration or unit tests for critical paths.

Coverage

low Security checks quality Quality conf 0.60 7 occurrences Duplicated implementation block across source files

Duplicate implementation blocks are maintenance debt. Keep them visible, but they are not a high-severity defect unless the duplicated logic is security-sensitive or drifting.

7 files, 7 locations

src/main/java/com/thealgorithms/datastructures/caches/LIFOCache.java:20

src/main/java/com/thealgorithms/datastructures/caches/MRUCache.java:54

src/main/java/com/thealgorithms/datastructures/caches/RRCache.java:39

src/main/java/com/thealgorithms/datastructures/hashmap/hashing/GenericHashMapUsingArrayList.java:56

src/main/java/com/thealgorithms/datastructures/lists/CircularDoublyLinkedList.java:31

src/main/java/com/thealgorithms/graph/GomoryHuTree.java:69

src/main/java/com/thealgorithms/graph/PushRelabel.java:106

duplicationquality

low System graph hardware Coverage conf 1.00 Containers defined but no K8s/orchestration manifest found

Repo has Dockerfiles/compose but no Kubernetes/Nomad manifests. If the target deployment is K8s, the manifests may live in a separate ops repo.

Deployment

low System graph hardware Supply chain conf 1.00 Docker base image is tag-pinned but not digest-pinned: mcr.microsoft.com/vscode/devcontainers/java:1.1.0-${VARIANT}

Container tags can be retagged upstream. Pin production base images to a reviewed digest (`image@sha256:...`) when reproducibility and supply-chain integrity matter.

.devcontainer/Dockerfile:5 containersPinned dependencies

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