ClassLoader interceptor

ClassLoaderGw.java

class ClassLoaderGw extends ClassLoader {

    public ClassLoaderGw() {
        super(null);
    }

    public Class<?> findClass(String name) throws ClassNotFoundException {
        System.out.println("Loading...");
        try{
            InputStream classData = ClassLoader.getSystemResourceAsStream(name.replace('.', '/') + ".class");
            if(classData == null) {
                throw new ClassNotFoundException("class " + name + " is not findable");
            }
            byte[] array = bytes(classData);
            return defineClass(name, array, 0, array.length);
        } catch(IOException ex) {
            throw new ClassNotFoundException(name);
        }
    }
    private static byte[] bytes(InputStream is) throws IOException{
        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        int nRead;
        byte[] data = new byte[1024];
        while ((nRead = is.read(data, 0, data.length)) != -1) {
            buffer.write(data, 0, nRead);
        }
        buffer.flush();
        return buffer.toByteArray();
    }
}