// className is for example com.app.Provider.class
 
private ResourceHandler getResourceHandler(String className){
        ResourceHandler resourceHandler = null;
 
        try {
            log.debug("The is getResourceHandler. className [" + className + "]");
 
            Class[] types = new Class[] {com.app.User.class};
 
            //get the constructor object to create class from
            //ClassLoader loader = this.getClass().getClassLoader();
            //Class class2 = Class.forName(className, false, loader);
 
            //Class class2 = Class.forName(className);
            //Class class2 = getClass().getClassLoader().loadClass(className);
 
            Class class2 = Thread.currentThread().getContextClassLoader().loadClass(className);
 
            Constructor cons = class2.getConstructor(types);
 
            Object[] args = new Object[]{this};
 
            // create the connection instance
            resourceHandler = (ResourceHandler)cons.newInstance(args);
 
            log.debug("Successfully loaded the Resource Handler implementation [" + className + "]");
            return resourceHandler;
 
        }catch(ClassNotFoundException cnfe){
            log.debug(cnfe.getMessage(), cnfe);
        }catch (Exception ex) {
            log.debug("Failed to load the Resource Handler implementation [" + className + "]", ex);
        }
        return resourceHandler;
    }