Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.util.*;

public class Main {
    /**
     * Tries to load the class from the current thread's context class loader. If
     * not successful, tries to load the class from the current instance.
     * @param classname Desired class.
     * @param clazz     Class object used to obtain a class loader
     *                  if no context class loader is available.
     * @return Class, or null on failure.
     */
    public static Class loadClass(String classname, Class clazz) throws ClassNotFoundException {
        return loadClass(classname, clazz.getClassLoader());
    }

    /**
     * Tries to load the class from the preferred loader.  If not successful, tries to 
     * load the class from the current thread's context class loader or system class loader.
     * @param classname Desired class name.
     * @param preferredLoader The preferred class loader
     * @return the loaded class.
     * @throws ClassNotFoundException if the class could not be loaded by any loader
     */
    public static Class<?> loadClass(String classname, ClassLoader preferredLoader) throws ClassNotFoundException {
        ClassNotFoundException exception = null;
        for (ClassLoader loader : Arrays.asList(preferredLoader, Thread.currentThread().getContextClassLoader(),
                ClassLoader.getSystemClassLoader())) {
            try {
                return loader.loadClass(classname);
            } catch (ClassNotFoundException e) {
                if (exception == null) {
                    exception = e;
                }
            }
        }
        throw exception;
    }
}