diff --git a/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilter.java b/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilter.java
index 1de781d0626..decfcd2d8c3 100644
--- a/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilter.java
+++ b/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilter.java
@@ -381,10 +381,13 @@ public class SystemFilter extends SystemReferencedObject implements ISystemFilte
 		  targetFilter.setStringsCaseSensitive(isStringsCaseSensitive());
     	// clone filter strings
     	ISystemFilterString[] strings = getSystemFilterStrings();
-    	ISystemFilterString newString = null;
-    	if (strings != null)
-    	  for (int idx=0; idx<strings.length; idx++)
-    	     newString = copySystemFilterString(targetFilter, strings[idx]);
+//    	ISystemFilterString newString = null; DWD - useless code, remove this after testing.
+    	if (strings != null) {
+    	  for (int idx=0; idx<strings.length; idx++) {
+//    	     newString = copySystemFilterString(targetFilter, strings[idx]); DWD useless code, remove after testing
+    	     copySystemFilterString(targetFilter, strings[idx]);
+    	  }
+    	}
     	// clone nested filters...
     	ISystemFilter[] filters = getSystemFilters();
     	if (filters != null)
@@ -649,7 +652,7 @@ public class SystemFilter extends SystemReferencedObject implements ISystemFilte
     	if (filterStringVector == null)
     	{
     	  java.util.List el = internalGetFilterStrings();
-    	  ISystemFilterString[] strings = new ISystemFilterString[el.size()];
+//    	  ISystemFilterString[] strings = new ISystemFilterString[el.size()]; DWD - useless code.
     	  Iterator i = el.iterator();
     	  filterStringVector = new Vector();
     	  while (i.hasNext())
diff --git a/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterPool.java b/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterPool.java
index db193b2fea3..e38501f449f 100644
--- a/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterPool.java
+++ b/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterPool.java
@@ -19,7 +19,6 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.Vector;
 
-import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.IFolder;
 import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.core.runtime.Platform;
@@ -88,8 +87,8 @@ public class SystemFilterPool extends SystemPersistableReferencedObject
 	protected static final String DELIMITER = SystemFilterPoolReference.DELIMITER;        	
 	
 	// persistence
-	protected boolean _isDirty = true;
-	protected boolean _wasRestored = false;
+//	protected boolean _isDirty = true; FIXME
+//	protected boolean _wasRestored = false; FIXME
 	
 	/**
 	 * @generated This field/method will be replaced during code generation.
@@ -715,7 +714,8 @@ public class SystemFilterPool extends SystemPersistableReferencedObject
         {
           for (int idx=0; idx<filters.length; idx++)
           {
-    		ISystemFilter newFilter = copySystemFilter(targetPool, filters[idx], filters[idx].getName());
+//    		ISystemFilter newFilter = copySystemFilter(targetPool, filters[idx], filters[idx].getName()); DWD - useless assignment.
+    		copySystemFilter(targetPool, filters[idx], filters[idx].getName());
           }
         }
     }
@@ -927,11 +927,11 @@ public class SystemFilterPool extends SystemPersistableReferencedObject
      * Return the save file that will be written for the given filter pool.
      * Will depend on this manager's save policy.
      */
-    public IFile getSaveFile()
-    {
-        String fileName = getRootSaveFileName(this);
-        return null;//FIXME SystemMOFHelpers.getSaveFile(getFolder(),fileName);
-    }
+//    public IFile getSaveFile() DWD - useless, not called since persistence model has changed.
+//    {
+//        String fileName = getRootSaveFileName(this);
+//        return null;//FIXME SystemMOFHelpers.getSaveFile(getFolder(),fileName);
+//    }
     
    
 
@@ -1020,14 +1020,14 @@ public class SystemFilterPool extends SystemPersistableReferencedObject
     /**
      * Do restore when all filters in this pool are stored in a single file.
      */
-    protected static ISystemFilterPool restoreFromOneFile(IFolder folder, String name, 
-                                                         ISystemFilterNamingPolicy namingPolicy,
-                                                         boolean restoreFilters)
-     throws Exception
-    {
-    	
-        String fileName = getRootSaveFileName(namingPolicy, name);
-        ISystemFilterPool pool = null;
+//    protected static ISystemFilterPool restoreFromOneFile(IFolder folder, String name, 
+//                                                         ISystemFilterNamingPolicy namingPolicy,
+//                                                         boolean restoreFilters) DWD - useless, not called since persistence model has changed
+//     throws Exception
+//    {
+//    	
+//    	String fileName = getRootSaveFileName(namingPolicy, name);
+//        ISystemFilterPool pool = null;
         /*FIXME
         if (!restoreFilters && !SystemResourceHelpers.getResourceHelpers().getFile(folder, fileName+".xmi").exists())
         {
@@ -1055,8 +1055,8 @@ public class SystemFilterPool extends SystemPersistableReferencedObject
         else
           RSEUIPlugin.logInfo("Hmmm, pool is still null after restore: " + fileName+".xmi");
           */
-        return pool;	        
-    }
+//        return pool;	        
+//    }
 
     /**
      * Internal use method
@@ -1367,31 +1367,31 @@ public class SystemFilterPool extends SystemPersistableReferencedObject
 		}
 	}
 	
-	public boolean isDirty()
-	{
-		return _isDirty;
-	}
+//	public boolean isDirty() DWD - useless and dangerous code, overrides default with same
+//	{
+//		return _isDirty;
+//	}
 	
-	public void setDirty(boolean flag)
-	{
-		if (_isDirty != flag)
-		{
-			_isDirty= flag;
-		}
-	}
+//	public void setDirty(boolean flag) DWD - useless and dangerous code, overrides default with same
+//	{
+//		if (_isDirty != flag)
+//		{
+//			_isDirty= flag;
+//		}
+//	}
 	
 	public boolean commit()
 	{
 		return RSEUIPlugin.getThePersistenceManager().commit(this);
 	}
 
-	public boolean wasRestored() 
-	{
-		return _wasRestored;
-	}
+//	public boolean wasRestored() DWD - useless and dangerous code, overrides default with same
+//	{
+//		return _wasRestored;
+//	}
 	
-	public void setWasRestored(boolean flag) 
-	{
-		_wasRestored = flag;
-	}
+//	public void setWasRestored(boolean flag) DWD - useless and dangerous code, overrides default with same
+//	{
+//		_wasRestored = flag;
+//	}
 }
\ No newline at end of file
diff --git a/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterPoolManager.java b/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterPoolManager.java
index 1992576ad26..6b3cb5a9b22 100644
--- a/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterPoolManager.java
+++ b/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterPoolManager.java
@@ -663,7 +663,8 @@ public class SystemFilterPoolManager implements ISystemFilterPoolManager
     	  	 }
     	  }
     	}    	
-    	String poolName = pool.getName();
+//    	String poolName = pool.getName(); DWD - useless code
+    	// DWD removing a pool should mark its parent profile as dirty and cause a save to be "scheduled"
    
     	// remove from model
     	java.util.List pools = getPools();
@@ -734,7 +735,13 @@ public class SystemFilterPoolManager implements ISystemFilterPoolManager
     public boolean preTestRenameFilterPool(ISystemFilterPool pool) throws Exception
     {
     	boolean ok = true;
-    	String oldName = pool.getName();
+//    	String oldName = pool.getName(); DWD temporarily removed.
+    	/*
+    	 * DWD this looks like it needs to be modified so that it queries the persistence
+    	 * manager to see if the pool can be renamed. The provider is in charge of determining
+    	 * pool names in the persistent form. The Manager will have to construct a DOM 
+    	 * object for this pool and query the appropriate provider.
+    	 */
     	/* FIXME
     	if ( (savePolicy == SystemFilterConstants.SAVE_POLICY_ONE_FILEANDFOLDER_PER_POOL) ||
     	     (savePolicy == SystemFilterConstants.SAVE_POLICY_ONE_FILE_PER_FILTER) )
@@ -803,9 +810,14 @@ public class SystemFilterPoolManager implements ISystemFilterPoolManager
     public void renameSystemFilterPool(ISystemFilterPool pool, String newName)
       throws Exception
     {
+    	/*
+    	 *  DWD Renaming a filter pool should mark its parent profile as dirty and
+    	 *  the pool itself as dirty. A rewrite of the profile should be scheduled.
+    	 */
+    	
     	String oldName = pool.getName();
-    	int oldLen = oldName.length();
-    	int newLen = newName.length();
+//    	int oldLen = oldName.length(); DWD temporarily(?) removed
+//    	int newLen = newName.length(); DWD temporarily(?) removed
         // rename on disk
         /* FIXME
     	if ( (savePolicy == SystemFilterConstants.SAVE_POLICY_ONE_FILEANDFOLDER_PER_POOL) ||
@@ -1353,7 +1365,10 @@ public class SystemFilterPoolManager implements ISystemFilterPoolManager
     public void moveSystemFilters(ISystemFilter filters[], int delta)
         throws Exception
     {
-    	ISystemFilterContainer container = filters[0].getParentFilterContainer();
+    	/*
+    	 * DWD revisit this. Make sure that the pool is scheduled to be saved.
+    	 */
+//    	ISystemFilterContainer container = filters[0].getParentFilterContainer(); DWD temporarily(?) removed.
     	int[] oldPositions = new int[filters.length];
     	for (int idx=0; idx<filters.length; idx++)
     	   oldPositions[idx] = getSystemFilterPosition(filters[idx]);
@@ -1550,10 +1565,13 @@ public class SystemFilterPoolManager implements ISystemFilterPoolManager
     public ISystemFilterString copySystemFilterString(ISystemFilter targetFilter, ISystemFilterString oldFilterString)
            throws Exception
     {
+    	/*
+    	 * DWD revisit this. make sure that pool is persisted.
+    	 */
         ISystemFilterPool       targetPool = targetFilter.getParentFilterPool();
     	ISystemFilterPoolManager targetMgr = targetPool.getSystemFilterPoolManager();
         ISystemFilter     oldFilter = oldFilterString.getParentSystemFilter();
-        ISystemFilterPool oldPool = oldFilter.getParentFilterPool();
+//        ISystemFilterPool oldPool = oldFilter.getParentFilterPool(); DWD temporarily(?) removed.
 
         targetMgr.suspendCallbacks(true);         
 
diff --git a/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterStringReference.java b/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterStringReference.java
index 99a5614e0ab..69cde1f0795 100644
--- a/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterStringReference.java
+++ b/rse/plugins/org.eclipse.rse.ui/filters/org/eclipse/rse/internal/filters/SystemFilterStringReference.java
@@ -31,6 +31,10 @@ import org.eclipse.rse.references.ISystemBaseReferencedObject;
 /**
  * A reference to a system filter string.
  */
+/*
+ * DWD What is a filter string REFERENCE? Where would this be used?
+ */
+
 public class SystemFilterStringReference
 	implements ISystemFilterStringReference, IAdaptable
 {
@@ -73,7 +77,6 @@ public class SystemFilterStringReference
 	 */
 	public ISystemFilterPoolReferenceManager getFilterPoolReferenceManager()
 	{
-		ISystemFilterReference filter = getParent();
 		if (parent != null)
 		  return parent.getFilterPoolReferenceManager();
 		return null;
diff --git a/rse/plugins/org.eclipse.rse.ui/model/org/eclipse/rse/internal/model/Host.java b/rse/plugins/org.eclipse.rse.ui/model/org/eclipse/rse/internal/model/Host.java
index 034c411c567..c6b6525b8b3 100644
--- a/rse/plugins/org.eclipse.rse.ui/model/org/eclipse/rse/internal/model/Host.java
+++ b/rse/plugins/org.eclipse.rse.ui/model/org/eclipse/rse/internal/model/Host.java
@@ -267,7 +267,7 @@ public class Host extends RSEModelObject implements IHost, IAdaptable
      */
 	public void setAliasName(String newName)
     {
-    	String oldName = getAliasName(); // what it used to be.
+//    	String oldName = getAliasName();  DWD temporarily(?) removed
     	String userIdValue = null;
     	if (previousUserIdKey != null)
    	       userIdValue = getLocalDefaultUserId(previousUserIdKey);     	  
diff --git a/rse/plugins/org.eclipse.rse.ui/references/org/eclipse/rse/internal/references/SystemPersistableReferencingObject.java b/rse/plugins/org.eclipse.rse.ui/references/org/eclipse/rse/internal/references/SystemPersistableReferencingObject.java
index 1326f347acc..8455ddc3533 100644
--- a/rse/plugins/org.eclipse.rse.ui/references/org/eclipse/rse/internal/references/SystemPersistableReferencingObject.java
+++ b/rse/plugins/org.eclipse.rse.ui/references/org/eclipse/rse/internal/references/SystemPersistableReferencingObject.java
@@ -41,7 +41,7 @@ public abstract class SystemPersistableReferencingObject extends SystemReferenci
 	 */
 	protected static final String REFERENCED_OBJECT_NAME_EDEFAULT = null;
 
-    private SystemReferencingObjectHelper helper = null;
+//    private SystemReferencingObjectHelper helper = null; DWD dangerous, overriding and covering superclass
 
 	/**
 	 * @generated This field/method will be replaced during code generation.
diff --git a/rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystem.java b/rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystem.java
index c5c8409e603..82a29a7ec13 100644
--- a/rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystem.java
+++ b/rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystem.java
@@ -142,9 +142,6 @@ public abstract class SubSystem extends RSEModelObject implements IAdaptable, IS
 	protected boolean _connectionError = false;
 	protected boolean _disconnecting = false;
 
-	protected boolean _isDirty = true;
-	protected boolean _wasRestored = false;
-	
 	protected IHost   _host;
 		
 
@@ -685,6 +682,7 @@ public abstract class SubSystem extends RSEModelObject implements IAdaptable, IS
 		 * since it names a team sharable resource. Not qualified by the profile
 		 * name since that is implicit by being in a profile.
 		 */
+		// DWD - does not appear to be used.
 		String name = "CN-" + connectionName;
 		return name;
 	}
@@ -3312,35 +3310,9 @@ public abstract class SubSystem extends RSEModelObject implements IAdaptable, IS
 		else return false;
 	}
 	
-	public boolean isDirty()
-	{
-		return _isDirty;
-	}
-	
-	public void setDirty(boolean flag)
-	{
-		if (_isDirty != flag)
-		{
-			_isDirty = flag;		
-		}
-	}
-	
 	public boolean commit()
 	{
 		return RSEUIPlugin.getThePersistenceManager().commit(this);
 	}
 	
-	
-	
-	public boolean wasRestored() 
-	{
-		return _wasRestored;
-	}
-	
-	public void setWasRestored(boolean flag) 
-	{
-		_wasRestored = flag;		
-	}
-
-
 }
\ No newline at end of file
diff --git a/rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystemConfiguration.java b/rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystemConfiguration.java
index e84af93cbda..238898bbcd1 100644
--- a/rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystemConfiguration.java
+++ b/rse/plugins/org.eclipse.rse.ui/subsystems/org/eclipse/rse/core/subsystems/SubSystemConfiguration.java
@@ -852,7 +852,7 @@ public abstract class SubSystemConfiguration  implements ISubSystemConfiguration
 	 */
 	public ISystemValidator getUserIdValidator()
 	{
-		RSEUIPlugin sp = RSEUIPlugin.getDefault();
+//		RSEUIPlugin sp = RSEUIPlugin.getDefault(); DWD - to be removed. Appears to be useless.
 		ISystemValidator userIdValidator =
 			new ValidatorSpecialChar(
 				"=;",
@@ -1106,8 +1106,8 @@ public abstract class SubSystemConfiguration  implements ISubSystemConfiguration
 		java.util.List mofList = getSubSystemList();
 		Iterator i = mofList.iterator();
 		Vector v = new Vector();
-		String connProfileName = conn.getSystemProfile().getName();
-		String connAliasName = conn.getAliasName();
+//		String connProfileName = conn.getSystemProfile().getName(); DWD - to be removed, appears to be useless.
+//		String connAliasName = conn.getAliasName(); DWD - to be removed.
 		while (i.hasNext())
 		{
 			ISubSystem subsys = (ISubSystem) i.next();
@@ -1125,7 +1125,7 @@ public abstract class SubSystemConfiguration  implements ISubSystemConfiguration
 	 */
 	public ISubSystem[] getSubSystems(ISystemProfile profile)
 	{
-		String profileName = profile.getName();
+//		String profileName = profile.getName(); DWD - to be removed.
 		ISubSystem[] allSubSystems = getSubSystems(true);
 		Vector v = new Vector();
 		for (int idx = 0; idx < allSubSystems.length; idx++)