public static byte[] patchMethod(byte[] bytes, String name, String iFile, String rname) throws IOException
    {
    	ClassNode cn = new ClassNode();
    	ClassReader cr = new ClassReader(bytes);
    	//the class node is now visiting the bytes that the class reader has
    	cr.accept(cn,0);
    	//giving us something we can look at all the methods
    	Iterator<MethodNode> methods = cn.methods.iterator();
    	//creating the method node we are going to mess with
    	MethodNode mn = null;
    	while (methods.hasNext())
    	{
    		MethodNode m = methods.next();
    		if (m.name.equals(name))
    		{
    			System.out.printf("Found a method we want to transform%n");
    			mn = m;
    			break;
    		}
    	}

    	//get the file we're going to replace a method with
    	InputStream in = LanEssentialsTransformer.class.getResourceAsStream(iFile);
    	byte[] newbyte = IOUtils.toByteArray(in);
    	//get the method
    	ClassNode cnr = new ClassNode();
    	ClassReader crr = new ClassReader(newbyte);
    	crr.accept(cnr,0);
    	//find the right one
    	Iterator<MethodNode> repalcemethods = cnr.methods.iterator();
    	MethodNode mnr = null;
    	while (repalcemethods.hasNext())
    	{
    		MethodNode m = repalcemethods.next();
    		if (m.name.equals(rname))
    		{
    			System.out.printf("Found the right method that is going to be the replacement");
    			mnr = m;
    			break;
    		}
    	}
    	//now we start changing the bodies
    	mn.instructions = mnr.instructions;
        final ClassWriter writer = new ClassWriter(1);
        cn.accept((ClassVisitor)writer);

    	byte[] bb = writer.toByteArray();

        try
        {
        	File f = new File("C:/Users/jredfox/Documents/tst.class");
        	FileOutputStream stream = new FileOutputStream(f);
        	for(byte b : bb)
        		stream.write(b);
        	stream.close();
        }
        catch(Exception e)
        {
        	e.printStackTrace();
        }
        return bb;
    }