A DESCRIPTION OF THE REQUEST :
rt.jar does not contain all debug symbols. It is not possible to examine local variables which makes debugging quite unusable.

JUSTIFICATION :
please check the google for "rt.jar with debug symbols" to see how many people have the same problem.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
JDK's rt.jar should differ from JRE's.

CUSTOMER SUBMITTED WORKAROUND :
rebuild rt.jar