In memory jar / class file execution

Question

I have a jar file (say app.jar) in a certain location available as a file/stream from an http server. The problem is that app.jar is itself a frequently updated jar file being

Answer 1

I will suggest have a look at http://jcloader.sourceforge.net/

This has better flexibility and is quite feature rich.

  JarClassLoader jcl = new JarClassLoader();

  //Loading classes from different sources
  jcl.add("myjar.jar");
  jcl.add(new URL("http://myserver.com/myjar.jar"));
  jcl.add(new FileInputStream("myotherjar.jar"));
  jcl.add("myclassfolder/");

  //Recursively load all jar files in the folder/sub-folder(s)
  jcl.add("myjarlib/");

  JclObjectFactory factory = JclObjectFactory.getInstance();

  //Create object of loaded class
  Object obj = factory.create(jcl, "mypack.MyClass");