FULL PRODUCT VERSION :
java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Darwin Big-iMac.local 14.5.0 Darwin Kernel Version 14.5.0: Tue Sep 1 21:23:09 PDT 2015; root:xnu-2782.50.1~1/RELEASE_X86_64 x86_64


A DESCRIPTION OF THE PROBLEM :
The java.beans.Statement.invoke() method treats Class.forName as a special case, but it does not distinguish between the 1-argument

   forName(String className)

method and the 3-argument

   forName(String name, boolean initialize, ClassLoader loader)

If you try to call the 3-argument one, it's treated like the 1-argument method and so the loader parameter is not used.

The problem seems clear in the java.beans.Statement source code where it says:

if (target == Class.class && methodName.equals("forName")) {
    return ClassFinder.resolveClass((String)arguments[0]);
}

http://grepcode.com/file/repository.grepcode.com/java/root/jdk/openjdk/6-b14/java/beans/Statement.java

It's as if the author did not realise the 3-argument method existed.


REPRODUCIBILITY :
This bug can be reproduced always.