This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
Marker interface is supposed to be an interface with no method definition it.
Consider below mentioned CustomMarkerInJava8 interface. Here, interface contains only default method but no method definition. Can we consider below mentioned interface as a valid Marker interface in Java 8?