RFR - 8033542: test/java/util/logging/SimpleLogManager might let Loggers be gc'ed too early.

[Daniel Fuchs]

Hi,

Please find below a fix [1] for:

8033542: test/java/util/logging/SimpleLogManager might let
          Loggers be gc'ed too early. [2]

[1] http://cr.openjdk.java.net/~dfuchs/webrev_8033542/webrev.00
[2] https://bugs.openjdk.java.net/browse/JDK-8033542

The issue is that some of the loggers created by this test
may not be strong referenced, which may cause the test to fail.

-- daniel