Figured this may help someone in the feature, sure helped me.

 If you get an exception in you JSP code, the line # corresponds to the the .java file, however at least in my installation of eclipse, eclipse doesn’t automatically find the file.  I found the java files in:

 <MYWORKSPACE>\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\work\Catalina\localhost\<mycontext>\org\apache\jsp>

If you know of an easier way to find the files let me know!