Java library to instantiate a new object of a particular class

Objenesis is a small Java library that serves one purpose: to instantiate a new object of a particular class. Java already supports this dynamic instantiation of classes using Class.newInstance(). However, this only works if the class has an appropriate constructor. There are many times when a class cannot be instantiated this way, such as when the class contains:

 * Constructors that require arguments.
 * Constructors that have side effects.
 * Constructors that throw exceptions.

As a result, it is common to see restrictions in libraries stating that classes must require a default constructor. Objenesis aims to overcomes these restrictions by bypassing the constructor on object instantiation.

Tags: Implemented in: Java, Role: Shared Library

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