Test bundle:
 
http://javadl.oracle.com/webapps/download/GetFile/1.8.0_60-ea-b25/unix-i586/jre-8u60-ea-bin-b25-macosx-x86_64-21_jul_2015.dmg

http://javadl.oracle.com/webapps/download/GetFile/1.8.0_60-ea-b25/unix-i586/jre-8u60-ea-bin-b25-macosx-x86_64-21_jul_2015_au.dmg

MACSP003-004: Reinstall of the JRE accepting Yahoo

(1) Check preconditions
    (a) VERIFY SF and FF browsers are installed
    (b) VERIFY JRE is NOT installed
    (c) VERIFY the sponsor is NOT installed

(2) Mount TEST JRE BUNDLE and start installation in UI Mode
(3) On Sponsor Offer dialog
    (a) VERIFY the Yahoo Sponsor offering is displayed for existing browsers on the system.
(4) Accept the offer and complete the installation
    (a) VERIFY JRE is now installed
    (b) VERIFY sponsor(s) is installed properly
(5) Open Firefox
    (a) change Default Search to bing
(6) Rerun the installer in same way as before.
(7) On Sponsor Offer dialog :
    (a) VERIFY the Yahoo Sponsor offering is displayed properly for above removed.
(8) Accept the offer and complete the installation
    (a) VERIFY JRE is again installed correctly
    (b) VERIFY EXPECTED PING CODES logged (see test spec section "Ping validation" )
    (c) VERIFY Sponsor(s) product is installed properly.
(9) If all verification's true, test is a PASS.

Actually behavior:
(8-c)The default search in FF is not set to yahoo after rerunning the installer.Please refer to install.log and system.log.