Java reflection: getMethod(String method, Object[].class) not working

Question

I have the following code:

public void myMethod(Object... args) {
    System.out.println(\"this is myMethod\");
}

public void invokeMyMethod() {
    Method          


        

Answer 1

The problem here is with the variable arguments (the Object...) that Method.invoke takes.

Changing this line

 s.invoke(this, ex);

to this

 s.invoke(this, (Object)ex);

will work.

In the background, Object... is passed as an Object[]. Java's seeing your Object[] and choosing not to wrap it up in another Object[]. By casting to Object, it now just sees that and reverts to its normal wrap-it-up behaviour - the same as what other answers are doing manually.