In this section, a Java singleton class will be used to create the driver class. This will force the user to use the same object for all instances where the WebDriver is required. The WebDriver events will never get out of sync during the run, and all WebDriver events will get sent to the correct browser or mobile device instance. And since the instance of the class is created on a single thread, referencing it won't interfere with other WebDriver instances running on the same node simultaneously.
As per Wikipedia (https://en.wikipedia.org/wiki/Singleton_pattern):
"In software engineering, the singleton pattern is a software design pattern that restricts the instantiation of a class to one object. This is useful when exactly one object is needed to coordinate actions across the system. The concept is sometimes generalized to systems...
