inconsistent configuration for MemoryHandler

FULL PRODUCT VERSION :
java version "1.7.0_03"
Java(TM) SE Runtime Environment (build 1.7.0_03-b04)
Java HotSpot(TM) 64-Bit Server VM (build 22.1-b02, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
3.0.0-16-generic #29-Ubuntu SMP Tue Feb 14 12:48:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
when deriving from java.util.MemoryHandler, the target configuration is taken from 'java.util.logging.MemoryHandler.target' property and the rest of the configuration is taken from the 'Derived.*' properties.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
- Derive empty class from MemoryHandler.
- configure in logging.properties:
handlers=example.DerivedMemoryHandler
example.DerivedMemoryHandler.target=java.util.logging.ConsoleHandler
example.DerivedMemoryHandler.push=WARNING



EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
DerivedMemoryHandler gets target 'java.util.logging.ConsoleHandler'
ACTUAL -
does not reveive target.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.RuntimeException: MemoryHandler can't load handler "null"

REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
java.util.logging.MemoryHandler.target=java.util.logging.ConsoleHandler