Regression tests:

java/util/prefs/RemoveReadOnlyNode.java
java/util/prefs/RemovedUnregedListener.java

are failing - both with same error

Test Failed
----------System.err:(14/884)----------
java.util.prefs.BackingStoreException: Synchronization failed for node '/'
        at java.util.prefs.MacOSXPreferences.flush(MacOSXPreferences.java:211)
        at RemoveUnregedListener.main(RemoveUnregedListener.java:44)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)