[FIXED] Convert List<Class> to Class... to get declared method

Issue

I am trying to get a method of a class I load during runtime using Class.getDeclaredMethod. The parameters for Class.getDeclaredMethod are String name, Class<?>... parameterTypes. I have the parameterTypes as a List.

How do I pass the parameterTypes from my list to the Class.getDeclaredMethod?

I tried (Class[]) paramterTypes.toArray() and it didn't work.

Solution

You are almost there. It is simply

Class[] paramsAr = new Class[parameterTypes.size()];
parameterTypes.toArray(paramsAr);

Answered By - ControlAltDel
Answer Checked By - Marie Seifert (JavaFixing Admin)