Project Summary
JNA provides Java programs easy access to native shared libraries (DLLs on Windows) without writing anything but Java code—no JNI or native code is required. This functionality is comparable to Windows' Platform/Invoke and Python's ctypes. Access is dynamic at runtime without code generation.
JNA's design aims to provide native access in a natural way with a minimum of effort. No boilerplate or generated code is required. While some attention is paid to performance, correctness and ease of use take priority.
Badges
In a Nutshell, Java Native Access (JNA)...
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has a well established, mature codebase
maintained by a large development team
with stable Y-O-Y commits -
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took an estimated 85 years of effort (COCOMO model)
starting with its first commit in May, 2007
ending with its most recent commit 2 months ago
Quick Reference
Apache License 2.0
Permitted
Commercial Use
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Private Use
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Include Copyright
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These details are provided for information only. No information here is legal advice and should not be used as such.
MIT
Permitted
Commercial Use
Modify
Distribute
Place Warranty
Use Patent Claims
Forbidden
Sub-License
Hold Liable
Required
Distribute Original
Disclose Source
Include Copyright
State Changes
Include License
Include Install Instructions
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 )
There are no reported vulnerabilities
Project Vulnerability Report
Security Confidence Index
Vulnerability Exposure Index
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30 Day SummaryJul 18 2025 — Aug 17 2025
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12 Month SummaryAug 17 2024 — Aug 17 2025
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