findMethod

FindMethod is a utility class in the Java Reflection API, specifically part of the `java.lang.reflect` package. Its primary purpose is to facilitate the process of locating a specific method within a class. This is particularly useful when dealing with dynamic invocation of methods, where the method name and its parameter types might not be known at compile time.

The FindMethod class provides static methods that allow developers to search for a method based on its name and an array of `Class` objects representing its parameter types. The most commonly used method is `findMethod(Class<?> targetClass, String methodName, Class<?>... parameterTypes)`. This method takes the class to search within, the name of the method to find, and the types of the method's parameters as input.

When `findMethod` is called, it iterates through the methods declared in the target class and its superclasses. It compares the provided method name and parameter types against each method found. If a match is found, the corresponding `java.lang.reflect.Method` object is returned. If no matching method is found, or if the method is not accessible (e.g., private and not bridgeable), it typically throws an exception, such as `NoSuchMethodException`.

The `FindMethod` utility is a crucial component for frameworks and applications that need to dynamically inspect and invoke methods on objects at runtime. This enables flexible and powerful programming paradigms.