The 310-083 exam is for Sun Certified Programmers (any edition) who are using the Java technology servlet and JavaServer Pages (JSP) application program interface (APIs) to develop web applications. Prior to beginning the Sun Certified Web Component Developer program, you must be a Sun Certified Programmer for the Java platform (any edition).

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Exam : SUN 310-083
Title : Sun Certification Web Component Developer for J2EE 5
1. You have created a JSP that includes instance variables and a great deal of scriptlet code. Unfortunately, after extensive load testing, you have discovered several race conditions in your JSP scriptlet code. To fix these problems would require significant recoding, but you are already behind schedule. Which JSP code snippet can you use to resolve these concurrency problems?
A. <%@ page isThreadSafe='false' %>
B. <%@ implements SingleThreadModel %>
C. <%! implements SingleThreadModel %>
D. <%@ page useSingleThreadModel='true' %>
E. <%@ page implements='SingleThreadModel' %>
Answer: A
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