Java: Breaking Encapsulation

It bypasses encapsulation, allowing private fields to be accessed.

While 'setAccessible(true)' enables frameworks to operate flexibly by allowing access to private fields, it also bypasses the encapsulation principle of object-oriented design, potentially leading to fragile code. If the internal state of an object is modified unexpectedly, it can cause bugs that are hard to trace. For instance, a framework that modifies private fields directly without validation might introduce unexpected behavior in an application.