hg: jdk9/sandbox/jdk: 8077846: improve locking strategy for readConfiguration(), reset(), and initializeGlobalHandlers()

[chris.hegarty at oracle.com]

Changeset: 8c1833cea5d7
Author:    plevart
Date:      2015-05-17 10:38 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/8c1833cea5d7

8077846: improve locking strategy for readConfiguration(), reset(), and initializeGlobalHandlers()
Reviewed-by: dholmes, alanb, mchung
Contributed-by: daniel.fuchs at oracle.com, peter.levart at gmail.com

! src/java.logging/share/classes/java/util/logging/LogManager.java
+ test/java/util/logging/LogManager/Configuration/TestConfigurationLock.java
+ test/java/util/logging/LogManager/Configuration/TestConfigurationLock.properties