diff --git a/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterFieldGenerator.java b/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterFieldGenerator.java
index 191e071..ebc7619 100644
--- a/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterFieldGenerator.java
+++ b/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterFieldGenerator.java
@@ -260,7 +260,6 @@ private Filter generateNumberFilter(Property<?> field, Object propertyId, Object
 		String gtValue = interval.getGreaterThanValue();
 		String eqValue = interval.getEqualsValue();
 		Class<?> typeClass = owner.getContainerDataSource().getType(propertyId);
-		;
 
 		if (!eqValue.isEmpty()) {
 			return new Compare.Equal(propertyId, parseNumberValue(typeClass, eqValue));
diff --git a/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterTable.java b/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterTable.java
index a7d7924..09e2db1 100644
--- a/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterTable.java
+++ b/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterTable.java
@@ -75,9 +75,9 @@ public FilterTable(String caption) {
 			java.lang.reflect.Field field = com.vaadin.v7.ui.Table.class.getDeclaredField("columnIdMap");
 			field.setAccessible(true);
 			_columnIdMap = (KeyMapper<Object>) field.get(this);
-			field = com.vaadin.v7.ui.Table.class.getDeclaredField("visibleComponents");
-			field.setAccessible(true);
-			_visibleComponents = (HashSet<Component>) field.get(this);
+			//field = Table.class.getDeclaredField("visibleComponents"); // In Table constructor "visibleComponents" is always null !
+			//field.setAccessible(true);
+			//_visibleComponents = (HashSet<Component>) field.get(this);
 		} catch (Exception exception) {
 			throw new IllegalArgumentException("Unable to get columnIdMap or visibleComponents", exception);
 		}
@@ -85,6 +85,21 @@ public FilterTable(String caption) {
 		initDone = true;
 	}
 
+	@Override
+	protected void refreshRenderedCells() {
+		super.refreshRenderedCells();
+		
+		// NOTE: 'visibleComponents' HashSet is (re)created by method  getVisibleCellsNoCache(...)
+		//       But only when method  refreshRenderedCells()  calls it.
+		try {
+			java.lang.reflect.Field field = com.vaadin.v7.ui.Table.class.getDeclaredField("visibleComponents");
+			field.setAccessible(true);
+			_visibleComponents = (HashSet<Component>) field.get(this);
+		} catch (Exception exception) {
+			throw new IllegalArgumentException("Unable to get visibleComponents", exception);
+		}
+	}
+
 	@Override
 	public void paintContent(PaintTarget target) throws PaintException {
 		super.paintContent(target);
@@ -363,7 +378,7 @@ public void setVisibleColumns(Object... visibleColumns) {
 			/* Set this as parent to visible columns */
 			for (Object key : visibleColumns) {
 				Component filter = columnIdToFilterMap.get(key);
-				if (filter != null) {
+				if (filter != null && isFilterBarVisible()) {
 					filter.setParent(this);
 				}
 			}
diff --git a/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterTreeTable.java b/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterTreeTable.java
index 6e95392..4e2c12c 100644
--- a/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterTreeTable.java
+++ b/filteringtable-addon/src/main/java/org/tepi/filtertable/FilterTreeTable.java
@@ -79,9 +79,9 @@ public FilterTreeTable(String caption) {
 			java.lang.reflect.Field field = com.vaadin.v7.ui.Table.class.getDeclaredField("columnIdMap");
 			field.setAccessible(true);
 			_columnIdMap = (KeyMapper<Object>) field.get(this);
-			field = com.vaadin.v7.ui.Table.class.getDeclaredField("visibleComponents");
-			field.setAccessible(true);
-			_visibleComponents = (HashSet<Component>) field.get(this);
+			//field = Table.class.getDeclaredField("visibleComponents"); // In Table constructor "visibleComponents" is always null !
+			//field.setAccessible(true);
+			//_visibleComponents = (HashSet<Component>) field.get(this);
 		} catch (Exception exception) {
 			throw new IllegalArgumentException("Unable to get columnIdMap or visibleComponents", exception);
 		}
@@ -89,6 +89,21 @@ public FilterTreeTable(String caption) {
 		initDone = true;
 	}
 
+	@Override
+	protected void refreshRenderedCells() {
+		super.refreshRenderedCells();
+		
+		// NOTE: 'visibleComponents' HashSet is (re)created by method  getVisibleCellsNoCache(...)
+		//       But only when method  refreshRenderedCells()  calls it.
+		try {
+			java.lang.reflect.Field field = com.vaadin.v7.ui.Table.class.getDeclaredField("visibleComponents");
+			field.setAccessible(true);
+			_visibleComponents = (HashSet<Component>) field.get(this);
+		} catch (Exception exception) {
+			throw new IllegalArgumentException("Unable to get visibleComponents", exception);
+		}
+	}
+
 	@Override
 	public void paintContent(PaintTarget target) throws PaintException {
 		super.paintContent(target);