java attempting to assign weaker access privilege error

The lines with the problem are the two below

new Wait("") {boolean until() {return false;}};session().open("/");
new Wait("") {boolean until() {return false;}};session().click("id=btnLogin-button");

You try to override the until method which has public access in the com.thoughtworks.selenium.Wait class by a until method which is only package visible.

You cannot override a method and reduce visibility. You can only increase the visibility (e.g. overriding a protected method and making it public)

So the fix would be to add the public keyword to these methods

new Wait("") {public boolean until() {return false;}};session().open("/");
new Wait("") {public boolean until() {return false;}};session().cli