Install jre 6u31 b05 and check all exe files and dll files' publisher.
Tested on win7 x64, JRE 64bit

Below is one error copied in log, all dll and exe files have same issue.
[2012-02-06T21:11:14.58] Publisher not set as expected for ./bin/java-rmi.exe.
[2012-02-06T21:11:14.58] Publisher expected 'Oracle Corporation', actual: Sun Microsystems, Inc.

Affected cases:
JreTests/JRE006-002-Manifest-6969236-64
JreTests/JRE006-002-Manifest-6969236