Java Reflection - Methods Introspection?

To get all methods of a class you need to recursively call getDeclaredMethods() on the class and all it's superclasses. Depending on what you want to achive with it you might need to remove duplicates which can occur due to method overloading.

– user550413 May 16 at 16:48 getMethods() + getDeclaredMethods() gives you all public methods and private+protected that are implemented in the class directly but not the private and protected methods that of it's superclasses. – x4u May 16 at 18:29.

The Javadoc makes this pretty clear: Returns an array containing Method objects reflecting all the public member methods of the class or interface represented by this Class object, including those declared by the class or interface and those inherited from superclasses and superinterfaces. To get at non-public methods, use getDeclaredMethods.

From the API doc: Returns an array containing Method objects reflecting all the public member methods of the class or interface represented by this Class object, including those declared by the class or interface and those inherited from superclasses and superinterfaces. So it gets you only public methods. To get all methods, you have to use getDeclaredMethods() on the class and all its superclasses (via getSuperclass()).

In order to call non-public methods, you can use setAccessible(true) on the Method object (if the security manager allows it).

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