java.lang.reflect.Constructor.newInstance mangles double args.


Source:

import java.lang.reflect.*;

public class Mangle {

    public static void main(String[] args) throws Exception {
        Mangle m = new Mangle();
        m.go();
    }

    public void go() throws Exception {
        Constructor cons;
        Class clazz = Class.forName("Blah");
        cons = clazz.getDeclaredConstructor(new Class[] {double.class});
        double d = 1.2;
        Object o = cons.newInstance(new Object[] {new Double(d)});
    }
}

class Blah {
    Blah(double d) {
        System.out.println("double received is "+d);
    }
}


Output:

/export/merlin> /export/merlin/build64/solaris-sparc/bin/java -d64 -version
java version "1.4.0-internal"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-internal-madbot-010129-10:55)
Java HotSpot(TM) 64-Bit Server VM (build 1.4beta-B50, mixed mode)
/export/merlin> /export/merlin/build64/solaris-sparc/bin/java -d64 Mangle
double received is 2.0723885E-317


works ok in 32 bit build:
/export/merlin> /export/merlin/build32/solaris-sparc/bin/java Mangle
double received is 1.2