Tired of Null Pointer Exceptions? Consider Using Java SE 8's Optional!String version = "UNKNOWN"; if(computer != null){ Soundcard soundcard = computer.getSoundcard(); if(soundcard != null){ USB usb = soundcard.getUSB(); if(usb != null){ version = usb.getVersion(); } } } Listing 1 However, you can see that the code in Listing 1 quickly becomes very ugly due to the nested checks. Unfortunately, we need a lot of boilerplate code to make sure we don't get a NullPointerE
