Re: When will reflections support casting (especially for constructors, etc) properly?

brian.vanheesch@xxxxxxxxx wrote: 
Consider the following code:

class A
{
}

class B extends A
{
}

class C
{
   public void foobar(A a)
   {
   }
}

...

Object b=Class.forName("B").newInstance();

Class clazzA=Class.forName("A");
Class clazzC=Class.forName("C");
Object c=clazz.newInstance();

Method m=clazzC.getMethod("foobar", clazzA);
m.invoke(c, b);

This will result in an exception, since b is not of type A (the extend
is not considered).  Anyway around this?  Clearly typecasting will do,
but can't figure out how to typecast using reflection if you only have
the class string "A" as a reference of the target typecast class.

You should try running this before posting... it doesn't compile. Even once I got it to compile, it doesn't result in an exception for me.

Also the private/public/protected modifier for the method (doSomething,
in this example) MUST be public (even if reflection code lives within
the class C), any around this?

I suspect you mean "foobar" and not "doSomething", but I don't see why you would want it any other way. The idea of private method is such that objects not of the same class cannot access those methods.
.

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