Where can I find free mock exams to help prepare for the Sun Certified Java Programmer exam?

There are numerous sites on the web which offer mock exams for the Sun Certified Java Programmer exam:

• http://suned.sun.com/usa/cert_test.html
• http://www.software.u-net.com/javaexam/javaexam.htm
• http://www.software.u-net.com/javaexam/exam2.htm
• http://home-1.worldonline.nl/~bmc88/java/javacert/newcert1-10.html
• http://www.software.u-net.com/applets/Exam/Exam.htm
• http://www.sarga.com/java/jac.htm
• http://www.geocities.com/SiliconValley/Cable/1025/exam2.html
• http://www.aber.ac.uk/~jjh/Java/certification/javacert.html
• http://www.javaranch.com/
• http://eddiemcnally.hypermart.net/jxam.html
• http://apollo.netservers.com/%7Efemibyte/javaquestions.html
• http://www.mindq.com/online/Sun.html