I use an URLClassLoader to load a class from a jar, then I instantiate an object and serialize it.

What can I do to deserialize it? The class is not in the CLASSPATH and I cannot specify to the ObjectOutputStream which ClassLoader to use. I cannot add the jar file to the CLASSPATH so it has to be using an URLClassLoader .

			

			...
			

			URLClassLoader l1 = URLClassLoader.newInstance(new URL[] {new URL("file:test.jar")});
			

			Object a = l1.loadClass("MyClass").newInstance();
			

			ByteArrayOutputStream bos = new ByteArrayOutputStream();
			

			ObjectOutputStream oos = new ObjectOutputStream(bos);
			

			oos.writeOject(a);
			

			oos.close();
			

			byte[] data = bos.toByteArray();
			

			...
			

			ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(data));
			

			a = ois.readObject();
			

			...
			

		

A ClassNotFoundException is thrown when trying to read the object from ois. Of course, it's what everybody expects but how can I solve the problem?

Thanks,

Bogdan