Who can tell me which directory the JSSE source code in?

I get the source code of JDK5,but there are too many directories ,I don't get the source code of JSSE,I am beginner.
[124 byte] By [cyca] at [2007-11-27 7:29:51]
# 1
Then you have no need for the source code of either J2SE or JSSE actually.
ejpa at 2007-7-12 19:10:01 > top of Java-index,Security,Java Secure Socket Extension (JSSE)...