Generates a bidirectional binding (or "bind with inverse") between two instances of javafx.collections.ObservableList.

A bidirectional binding is a binding that works in both directions. If two properties a and b are linked with a bidirectional binding and the value of a changes, b is set to the same value automatically. And vice versa, if b changes, a is set to the same value.

Only the content of the two lists is synchronized, which means that both lists are different, but they contain the same elements.

A bidirectional content-binding can be removed with unbindContentBidirectional(Object, Object).

Note: this implementation of a bidirectional binding behaves differently from all other bindings here in two important aspects. A property that is linked to another property with a bidirectional binding can still be set (usually bindings would throw an exception). Secondly bidirectional bindings are calculated eagerly, i.e. a bound property is updated immediately.

Parameters:

<E>		the type of the list elements
list1		the first ObservableList<E>
list2		the second ObservableList<E>

Exceptions:

NullPointerException		if one of the lists is null
IllegalArgumentException		if list1 == list2

Since:  JavaFX 2.1