README file on both public and private jrefb does not mention Java Standard Edition Runtime Environment For Business 6 Instead they still have the SE version.

See:

=======================================================================
      Redistribution of the Java SE Runtime Environment (JRE)
=======================================================================

    --------------------------------------------------------
    NOTE - The license for this software does not allow the
    redistribution of beta and other pre-release versions.
    --------------------------------------------------------



To reproduce the bug:
1: Install 6u5b16 jdk or jre bundles
2: cd to the jre folder and vi README file