java.lang.IllegalArgumentException: argument type mismatch on string array

Question

This is my code to invoke a method dynamically:

String[] parameters = new String[requiredParameters.length];
//here i put some values in the parameters array         


        

Answer 1

invoke expects an Object[] as second argument (varargs is just a convenience syntax). I think in your case the String[] is not taken as the first vararg argument, but the complete vararg Object[] and thus your single strings are used as arguments which does not match String[].
In your case, explicitly wrapping your parameters in an Object array before giving it to invoke should work.
So do results = (ResultSet) method.invoke(new TestRecommendations(), new Ojbect[] { parameters }) instead