Intellij JCEF docs

where can I find java docs for JBCEF? For example, JCef implementation posted in BitBucket has CefApp.addAppHandler which handles StateHasChanged and user CefAppState.Terminated parameter to decide to exit the system or not. It also has CefApp.start(args) in the main method just to get the Cef app running. Are there equivalent to those methods in JB implementation? Other classes are:
org.cef.CefApp.CefAppState;
org.cef.CefSettings;
org.cef.handler.CefAppHandler; // I see a factory method in JB implementation but don't know how to use it.
org.cef.handler.CefAppHandlerAdapter;
I tried by adding 'JB' to the classes names but it did not work.