modules/controls/src/main/java/javafx/scene/control/skin/TableColumnHeader.java

@@ -25,10 +25,11 @@
 
 package javafx.scene.control.skin;
 
 import com.sun.javafx.scene.control.LambdaMultiplePropertyChangeListenerHandler;
 import com.sun.javafx.scene.control.Properties;
+import com.sun.javafx.scene.control.TableColumnBaseHelper;
 import javafx.beans.property.DoubleProperty;
 import javafx.beans.property.ReadOnlyObjectProperty;
 import javafx.beans.property.ReadOnlyObjectWrapper;
 import javafx.beans.value.WritableValue;
 import javafx.collections.ListChangeListener;

@@ -391,11 +392,11 @@
     @Override protected double computePrefWidth(double height) {
         if (getNestedColumnHeader() != null) {
             double width = getNestedColumnHeader().prefWidth(height);
 
             if (getTableColumn() != null) {
-                getTableColumn().impl_setWidth(width);
+                TableColumnBaseHelper.setWidth(getTableColumn(), width);
             }
 
             return width;
         } else if (getTableColumn() != null && getTableColumn().isVisible()) {
             return getTableColumn().getWidth();