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I wrote java program for loading classes at runtime from jar file or class files Hope this post will help somebody... package com.dukesoftware.utils.reflect; import java.io.File; import java.io.FileFilter; import java.io.IOException; import java.net.URI; import java.net.URL; import java.net.URLClassLoader; import java.util.ArrayList; import java.util.Enumeration; import java.util.List; import java.util.jar.JarEntry; import java.util.jar.JarFile; public class DynamicClassLoader { public static List<Class<?>> readAllClassesFormJarFile(File jarFilePath) throws IOException{ List<Class<?>> classes = new ArrayList<>(); URL[] urls = { new URL("jar:" + jarFilePath.toURI().toURL() + "!/") }; URLClassLoader loader = URLClassLoader.newInstance(urls); for(Enumeration<JarEntry> en = new JarFile(jarFilePath).entries(); en.hasMoreElements();){ final String name = en.nextElement().getName(

I wrote a utility class for loading bytes from URL because the official method needs a lot of preparation. Here is the usage. var loader:ByteLoadHelper = new ByteLoadHelper(); loader.addEventListener(ByteLoadEvent.COMPLETE, completeHandler); loader.load(url); function completeHandler(evt:ByteLoadEvent):void { loader.removeEventListener(ByteLoadEvent.COMPLETE, completeHandler); var bytes:ByteArray = evt.data; // do something nice :D } Here is the core code. package utils.tool { import flash.events.Event; import flash.events.EventDispatcher; import flash.net.URLLoader; import flash.net.URLLoaderDataFormat; import flash.net.URLRequest; import flash.utils.ByteArray; public class ByteLoadHelper extends EventDispatcher { public function ByteLoadHelper() { } public function load(url:String):void { var urlLoader:URLLoader = new URLLoader(); urlLoader.dataFormat = URLLoa