Comparison

PrimeFaces vs OpenXava

PrimeFaces and OpenXava both land on Depends.

PrimeFaces

primefaces.org

Depends

Confidence: Medium

Buy only if your team is already committed to JSF/Jakarta Faces and wants a mature, free component suite.

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OpenXava

openxava.org

Depends

Confidence: Low

Buy only if you have Java developers building internal, data-heavy web apps and want the UI generated from plain domain classes; non-Java shops or no-code buyers should look elsewhere.

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PrimeFaces versus OpenXava
Compare	PrimeFaces	OpenXava
Verdict	Depends	Depends
Best for	Existing JSF/Jakarta Faces shops	Java development teams
Who it's not for	Greenfield web apps . JSF is a dated stack	Non-Java stacks (PHP, .NET, Python, JS)
Privacy	Multiple public CVEs, including a documented RCE in 5.x-6.0 . stay current and audit old deployments.^⁴	No known public vulnerabilities found in the sources reviewed.¹¹
Support quality	Paid Elite tier exists; users needed outside experts	No support evidence in sources
Public sentiment	Developers value the component breadth but describe a heavy, dated experience with a real learning curve.^⁶	User feedback is scarce: only two verified G2 reviews average 4.5 stars, and no verbatim quotes appear in the reviewed sources.¹⁴
Biggest gotcha	Major-version upgrades break things: widgetVars rendering broke for teams moving to v14	Guess: advanced features likely sit in paid commercial editions; verify licensing before building on the free core.¹¹

Pick PrimeFaces when

Existing JSF/Jakarta Faces shops
Enterprise Java back-office apps
Teams wanting prebuilt UI blocks

When PrimeFaces is not a fit

Greenfield web apps . JSF is a dated stack
React, Vue, or Angular teams
Anyone not already locked into JSF
Security-sensitive apps stuck on old 5.x/6.x versions

Pick OpenXava when

Java development teams
Internal CRUD and admin apps
Fast time-to-market prototypes
Open-source-first shops

When OpenXava is not a fit

Non-Java stacks (PHP, .NET, Python, JS)
No-code buyers and citizen developers
Teams wanting pixel-perfect custom consumer UIs
Small teams a spreadsheet or Baserow would cover

Sources

PrimeFaces official siteprimefaces.org
official
PrimeFaces GitHub repositorygithub.com
official
PrimeFaces support and Elite pricingprimefaces.org
official
NVD . CVE-2017-1000486nvd.nist.gov
security
Snyk . known vulnerabilities in org.primefacessecurity.snyk.io
security
Reddit r/java . rethinking Java web UIsreddit.com
review
PrimeFaces testimonialsprimefaces.org
review
foojay . PrimeFaces 15 releasefoojay.io
news
TheirStack . companies using PrimeFacestheirstack.com
news
OpenXava official siteopenxava.org
official
OpenXava product page (security & licensing claims)openxava.org
official
OpenXava on GitHubgithub.com
official
OpenXava on Maven Centralmvnrepository.com
official
OpenXava G2 product reviewsg2.com
review
OpenXava Team G2 seller reviews (4.5/5, 2 reviews)g2.com
review
OpenXava traffic estimatesiteprice.org
news