The Bindings.select*(root, steps) family of methods fire superfluous warnings if any of the properties determined by the "steps" parameters have null values. This use case is supported according to the API:

"The value of the binding will be c, or null if c could not be reached (due to b not having a c property, b being null, or c not being the right type etc.)."

The logging becomes particularly problematic if the binding is evaluated many times: for example while sorting a large TableView by a TableColumn whose cellValueFactory returns such a Binding. See OTN discussion https://community.oracle.com/thread/2622745

See also RT-35527