arr = _arrays.newArray(_plugins.loadClass("java.lang.Boolean"), 2) aw = _objectWrappers.wrap(arr) aw.set(0, True) aw.set(1, False) iterable = _arrays.toMutableList(arr) _console.log(iterable) def fn(it): _console.log(it) _objectWrappers.wrap(iterable).forEach(fn)