使用反射传递Double类型的参数

Question

I'm trying to use reflection in a situation where I need to pass in arguments that have a type Double. My code works perfectly when I call the function directly, but it fails when I do it via reflection with two doubles as its arguments. Here is the eror:

java.lang.NoSuchMethodException: org.jinstagram.Instagram.searchMedia(java.lang.Double, java.lang.Double)

Double lat = Double.parseDouble(methodArgument[0][0]);
Double lng = Double.parseDouble(methodArgument[0][1]);
Method m = instagram.getClass().getDeclaredMethod("searchMedia", Double.class, Double.class);
Object o = (Object) m.invoke(instagram, lat, lng);

Just for testing, I can call this successfully like this:

Object o = instagram.searchMedia(lat, lng);

so the problem must be somewhere in the use of reflection, right?

Answer 1

The signature of the method in question is

public MediaFeed searchMedia(double latitude, double longitude)
                                                             throws InstagramException

So you need to use double.class instead of Double.class