This week's book giveaway is in the OCAJP forum. We're giving away four copies of Programmer's Guide to Java SE 8 Oracle Certified Associate (OCA) and have Khalid A Mughal & Rolf W Rasmussen on-line! See this thread for details.
In book, PN 114 it is mentioned that PUT is idempotent according to HTTP 1.1 spec. But if you check HttpServlet API (J2EE 1.4), then it is clearly mentioned that doPut() method does not need to be safe or idempotent.
So, In exam what we have to write? idempotent or not?