Free
Free
Open-source downloads are offered from objenesis.org with no commercial pricing listed.
- Access
- Open-source downloads are offered from objenesis.org with no commercial pricing listed.
Finding the possibilities
Objenesis
● Identity checkedAssistant · Vendor site 2026-10-04
Objenesis is a small open-source Java library that instantiates objects without calling their constructors, useful for serialization frameworks, proxies, and dependency injection containers when default constructors are unavailable.
- Category
- Assistant
- Free access
- Open-source downloads are offered from objenesis.org with no commercial pricing listed.
- API access
- Not confirmed; the site documents a Java library API for object instantiation rather than a hosted web API.
Is Objenesis right for you?
A good fit for
Java library authors and framework maintainers who need constructor-bypass instantiation in specialized scenarios.
Before you choose
Documentation notes many JVMs are supported but some environments must be validated with the included TCK.
Constructor-free instantiation
Objenesis.org explains how the library bypasses constructors to create Java objects for frameworks that cannot rely on accessible default constructors.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Core purpose | About page states Objenesis exists to instantiate objects of a class without invoking a constructor. | Facts sourced | 2026-10-04 |
| Typical uses | Site lists serialization, remoting, proxies, AOP libraries, and container frameworks as common use cases. | Facts sourced | 2026-10-04 |
Understand the total cost
Objenesis pricing & plans
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Explore toolThe practical questions
Frequently asked questions
What is Objenesis used for?
Objenesis is a small open-source Java library that instantiates objects without calling their constructors, useful for serialization frameworks, proxies, and dependency injection containers when default constructors are unavailable.
Does Objenesis have a free plan?
Open-source downloads are offered from objenesis.org with no commercial pricing listed.. This record lists ongoing free access; check the plan limits before starting.
How much does Objenesis cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Objenesis through an API?
Not confirmed; the site documents a Java library API for object instantiation rather than a hosted web API.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Documentation notes many JVMs are supported but some environments must be validated with the included TCK.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.