wrong number of arguments

Stack trace

java.lang.IllegalArgumentException: wrong number of arguments
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at nodebox.function.JavaLibrary$StaticMethodFunction.invoke(Unknown Source)
	at nodebox.node.NodeContext.invokeFunction(Unknown Source)
	at nodebox.node.NodeContext.renderAsIsStrategy(Unknown Source)
	at nodebox.node.NodeContext.renderNode(Unknown Source)
	at nodebox.node.NodeContext.renderChild(Unknown Source)
	at nodebox.node.NodeContext.renderNetwork(Unknown Source)
	at nodebox.client.NodeBoxDocument$7.run(Unknown Source)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)