Multiple instances of static variables

Question

I\'m experimenting with using different classloaders to load a particular class, and see if the static variables in that class can have different instances.

Basically,

Answer 1

It looks as though the class "A" is being loaded by the parent class loader, rather than your CustomClassLoader (because you call super.loadClass).

The following untested amendment should allow you to define the "A" class using your own class loader (while delegating everything else to the parent loader).

Apologies for the horrible bodge where I assume the single inputStream.read() will read everything! But you can hopefully see what I mean.

    public Class loadClass(String classname)  throws ClassNotFoundException {
    if (classname.equals("A")) {
        InputStream is = getResourceAsStream("A.class");
        byte[] bodge = new byte[8192];  // Should read until EOF
        try {
            int len = is.read(bodge);
            return defineClass("A", bodge, 0, len);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    return super.loadClass(classname, true);
}

You'll probably then end up with ClasscastExceptions or something similar...