Java.proxy

How can I get Java.proxy() to work? I thought the java() call on top should be enough to get the Java object available, but it is nil.

java()
local TimerTask = require "java:java.util.TimerTask"
local runTask = {}
runTask.run = function()
	-- do nothing
end
Java.proxy(TimerTask, runTask)

ERROR MESSAGE: attempt to index 'Java' (a nil value)

In theory, like this:

java()
local Runnable = require "java:java.lang.Runnable"
local TimerTask = require "java:java.util.TimerTask"
local runTask = {}
runTask.run = function()
	-- do nothing
end
Runnable.luan_proxy(runTask, TimerTask.new())

But this doesn't work because TimerTask doesn't have a public constructor.  In fact there is no reasonable way to proxy TimerTask in Java itself.  TimerTask is horribly designed because its design requires implementation inheritance.

So how would you implement a timer task that must be run every N minutes?

java()
local Runnable = require "java:java.lang.Runnable"
local Executors = require "java:java.util.concurrent.Executors"
local TimeUnit = require "java:java.util.concurrent.TimeUnit"
scheduler = Executors.newSingleThreadScheduledExecutor()
local runTask = {}
runTask.run = function() %>
ok
<% end
r = Runnable.luan_proxy(runTask)
scheduler.scheduleAtFixedRate(r,0,1,TimeUnit.SECONDS)

Thanks, this works. Closing thread.