Preferences :PreferenceChangeListener behaviour differnet on solaris/windows

Test Program passes on solairs and fails on windows.

If Thread.sleep(1000) line is uncommented in the test program then
test program passes on solaris and windows.


-----------------------------Test.java-------------------------
 
import java.util.prefs.*;
import java.util.*;
 
public class Test{
    public static void main(String[] args) throws Exception {
  
         try {
            Preferences userRoot = Preferences.userRoot();
            System.out.println("Thread.activeCount() = " + Thread.activeCount());
            Preferences prefChangeListenerUserRootTest = userRoot.node("prefChangeListenerUserRootTest");
            prefChangeListenerUserRootTest.clear();
        
            PreferenceChangeListenerTestClass prefChangeListener = new PreferenceChangeListenerTestClass();
            prefChangeListenerUserRootTest.addPreferenceChangeListener(prefChangeListener);
           
             
            Preferences preferencesGot = null;
            prefChangeListenerUserRootTest.put("k1","v1");
          
            //Thread.sleep(1000);
           
            int preferenceTotalCount = prefChangeListener.getTotalPreferenceCount();
            System.out.println("preferenceTotalCount expected 1= "+preferenceTotalCount);
            if (preferenceTotalCount != 1) {
                System.out.println(" preferenceTotalCount = " + preferenceTotalCount);
                throw new Exception("preferenceTotalCount != 1 not ok in PreferenceChangeListenerTestTest01()");
            }
           
            System.out.println("PreferenceChangeListenerTestTest01() Pass");
        
        } catch(BackingStoreException bse) {
           System.out.println("BackingStoreException thrown = " + bse);
           System.out.println("PreferenceChangeListenerTestTest01() Fail");
           bse.printStackTrace();
        } catch (Exception e) {
            System.out.println("Exception thrown = " + e);
           System.out.println("PreferenceChangeListenerTestTest01() Fail");
           e.printStackTrace();
        }
    }

}
 
 class PreferenceChangeListenerTestClass implements PreferenceChangeListener {
     private int totalPreferenceCount = 0;
     String keyGot = null;
     String valueGot = null;
     Preferences preferenceGot = null;
   
     public void preferenceChange(PreferenceChangeEvent evt) {
         totalPreferenceCount++;
         keyGot = evt.getKey();
         valueGot = evt.getNewValue();
         preferenceGot = evt.getNode();
         System.out.println("from PreferenceChangeListener: totalPreferenceCount= "+totalPreferenceCount);
    }
    public int getTotalPreferenceCount() {
        return totalPreferenceCount;
    }
   
    public String getKey(){
        return keyGot;
    }
    public String getValue(){
        return valueGot;
    }
    public Preferences getPreference() {
        return preferenceGot;
    }
}
----------------------------------Test result on windows---------------

H:\merlin\bugs\prefs\PreferenceChangeListenerTest>java -version
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b48)
Java HotSpot(TM) Client VM (build B48, mixed mode)

H:\merlin\bugs\prefs\PreferenceChangeListenerTest>java Test
Thread.activeCount() = 2
preferenceTotalCount expected 1= 0
 preferenceTotalCount = 0
Exception thrown = java.lang.Exception: preferenceTotalCount != 1 not ok in PreferenceChangeListenerTestTest01()
PreferenceChangeListenerTestTest01() Fail
java.lang.Exception: preferenceTotalCount != 1 not ok in PreferenceChangeListenerTestTest01()
        at Test.main(Test.java:27)
from PreferenceChangeListener: totalPreferenceCount= 1

--------------------------------test result on solaris-----------------
 javapro:/home/pande/merlin/bugs/prefs/PreferenceChangeListenerTest 17 % java -version
java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b48)
Java HotSpot(TM) Client VM (build 1.4beta-B48, mixed mode)
javapro:/home/pande/merlin/bugs/prefs/PreferenceChangeListenerTest 18 % java Test
Thread.activeCount() = 3
from PreferenceChangeListener: totalPreferenceCount= 1
preferenceTotalCount expected 1= 1
PreferenceChangeListenerTestTest01() Pass
Couldn't flush user prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.
javapro:/home/pande/merlin/bugs/prefs/PreferenceChangeListenerTest 19 %







   
  
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