Build: Tiger beta b26
Platform: Redhat Advanced Server 3.0 (x86)

Tests:
java_util/prefs/Preferences/SJvm2Thread/userRoot/KeysTest2SJvm2Thread
and 15 other related tests.

In Redhat Linux AS 3.0, java.util.prefs.BackingStoreException is thrown when Preferences.removeNode() is called. The following piece of code illustrates it.

----------------------------Test.java-----------------------------
import java.util.prefs.*;

public class Test
{
public static void main(String[] args)
{
Preferences userRoot = null;
Preferences N1 = null;
try
{
userRoot = Preferences.userRoot();
                N1 = userRoot.node("N1");
                N1.clear();
                N1.removeNode();
 
        } catch (Exception e)
        {
          System.out.println("Exception caught:"+ e.getMessage());
       }
    }
}

------------------------------------------------------------------------
the following is the output
------------------------------------------------------------------------
Oct 31, 2003 2:37:51 PM java.util.prefs.FileSystemPreferences checkLockFile0ErrorCode
WARNING: Could not lock User prefs. Unix error code 22.
Exception caught:Couldn't get file lock.
java.util.prefs.BackingStoreException: Couldn't get file lock.
at java.util.prefs.FileSystemPreferences.removeNode(FileSystemPreferences.java:657)
at Test.main(Test.java:29)
------------------------------------------------------------------------

The above code is run on the local system (not on a nfs file system).

The above problem is not observed with mantis.
 
###@###.### 2003-10-31