Analyzed
1 day
ago.
based on code collected
1 day
ago.
Project Summary
Jena is Java toolkit for developing semantic Web applications. It includes an RDF API, an OWL API, SPARQL 1.1 implementation. jena support readign and writing RDF/XML, Turtle, N-triples, TriG and N-Quads as well as other formats. Storage options include in-memory, a high-performance native store as well as adapters for SQL databases.
In a Nutshell, Jena...
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has a well established, mature codebase
maintained by a large development team
with increasing Y-O-Y commits -
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took an estimated 219 years of effort (COCOMO model)
starting with its first commit in May, 2012
ending with its most recent commit 2 days ago
Quick Reference
Organization:
https://github.com/apache/jena
Apache License 2.0
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Sub-License
Private Use
Use Patent Claims
Forbidden
Hold Liable
Use Trademarks
Required
Include Copyright
State Changes
Include License
Include Notice
These details are provided for information only. No information here is legal advice and should not be used as such.
Project Security
Vulnerabilities per Version ( last 10 releases )
Project Vulnerability Report
Security Confidence Index
Poor security track-record
Favorable security track-record
Vulnerability Exposure Index
Many reported vulnerabilities
Few reported vulnerabilities
Did You Know...
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there are over 3,000 projects on the Open Hub with security vulnerabilities reported against them
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nearly 1 in 3 companies have no process for identifying, tracking, or remediating known open source vulnerabilities
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30 Day SummaryDec 30 2025 — Jan 29 2026
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12 Month SummaryJan 29 2025 — Jan 29 2026
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