Use Logger instead of VConsole (#10249)

Because VConsole is deprecated and it recommends using Logger instead

client/src/main/java/com/vaadin/client/ui/AbstractClickEventHandler.java

@@ -15,6 +15,8 @@
  */
 package com.vaadin.client.ui;
 
+import java.util.logging.Logger;
+
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.dom.client.NativeEvent;
 import com.google.gwt.event.dom.client.ContextMenuEvent;
@@ -31,7 +33,6 @@ import com.google.gwt.event.shared.HandlerRegistration;
 import com.google.gwt.user.client.Event;
 import com.google.gwt.user.client.Event.NativePreviewHandler;
 import com.vaadin.client.ComponentConnector;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 
 public abstract class AbstractClickEventHandler implements MouseDownHandler,
@@ -74,7 +75,7 @@ public abstract class AbstractClickEventHandler implements MouseDownHandler,
                     && elementUnderMouse == lastMouseDownTarget) {
                 mouseUpPreviewMatched = true;
             } else {
-                VConsole.log("Ignoring mouseup from " + elementUnderMouse
+                getLogger().info("Ignoring mouseup from " + elementUnderMouse
                         + " when mousedown was on " + lastMouseDownTarget);
             }
         }
@@ -238,4 +239,8 @@ public abstract class AbstractClickEventHandler implements MouseDownHandler,
         return connector.getWidget().getElement();
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(AbstractClickEventHandler.class.getName());
+    }
+
 }

client/src/main/java/com/vaadin/client/ui/AbstractComponentConnector.java

@@ -15,6 +15,8 @@
  */
 package com.vaadin.client.ui;
 
+import java.util.logging.Logger;
+
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.JsArrayString;
 import com.google.gwt.dom.client.Element;
@@ -40,7 +42,6 @@ import com.vaadin.client.StyleConstants;
 import com.vaadin.client.TooltipInfo;
 import com.vaadin.client.UIDL;
 import com.vaadin.client.Util;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.WidgetUtil.ErrorUtil;
 import com.vaadin.client.annotations.OnStateChange;
@@ -420,7 +421,7 @@ public abstract class AbstractComponentConnector extends AbstractConnector
                  * TODO Enable this error when all widgets have been fixed to
                  * properly support tabIndex, i.e. implement Focusable
                  */
-                // VConsole.error("Tab index received for "
+                // getLogger().severe("Tab index received for "
                 // + Util.getSimpleName(getWidget())
                 // + " which does not implement Focusable");
             }
@@ -511,7 +512,7 @@ public abstract class AbstractComponentConnector extends AbstractConnector
             if (parent instanceof HasComponentsConnector) {
                 ((HasComponentsConnector) parent).updateCaption(this);
             } else if (parent == null && !(this instanceof UIConnector)) {
-                VConsole.error("Parent of connector "
+                getLogger().severe("Parent of connector "
                         + Util.getConnectorString(this)
                         + " is null. This is typically an indication of a broken component hierarchy");
             }
@@ -760,7 +761,7 @@ public abstract class AbstractComponentConnector extends AbstractConnector
         // at this point.
         if (getWidget() != null && getWidget().isAttached()) {
             getWidget().removeFromParent();
-            VConsole.error(
+            getLogger().severe(
                     "Widget is still attached to the DOM after the connector ("
                             + Util.getConnectorString(this)
                             + ") has been unregistered. Widget was removed.");
@@ -879,4 +880,8 @@ public abstract class AbstractComponentConnector extends AbstractConnector
     public void onDropTargetDetached() {
 
     }
-}
+
+    private static Logger getLogger() {
+        return Logger.getLogger(AbstractComponentConnector.class.getName());
+    }
+}

client/src/main/java/com/vaadin/client/ui/AbstractConnector.java

@@ -21,6 +21,7 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.logging.Logger;
 
 import com.google.gwt.core.client.JsArrayString;
 import com.google.gwt.dom.client.Element;
@@ -35,7 +36,6 @@ import com.vaadin.client.JsArrayObject;
 import com.vaadin.client.Profiler;
 import com.vaadin.client.ServerConnector;
 import com.vaadin.client.Util;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.communication.RpcProxy;
 import com.vaadin.client.communication.StateChangeEvent;
 import com.vaadin.client.communication.StateChangeEvent.StateChangeHandler;
@@ -310,7 +310,7 @@ public abstract class AbstractConnector
     public void onStateChanged(StateChangeEvent stateChangeEvent) {
         Profiler.enter("AbstractConnector.onStateChanged");
         if (debugLogging) {
-            VConsole.log("State change event for "
+            getLogger().info("State change event for "
                     + Util.getConnectorString(stateChangeEvent.getConnector())
                     + " received by " + Util.getConnectorString(this));
         }
@@ -356,7 +356,7 @@ public abstract class AbstractConnector
     @Override
     public void onUnregister() {
         if (debugLogging) {
-            VConsole.log(
+            getLogger().info(
                     "Unregistered connector " + Util.getConnectorString(this));
         }
     }
@@ -530,4 +530,8 @@ public abstract class AbstractConnector
         }
         this.tag = tag;
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(AbstractConnector.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/TouchScrollDelegate.java

@@ -19,6 +19,7 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
+import java.util.logging.Logger;
 
 import com.google.gwt.animation.client.Animation;
 import com.google.gwt.core.client.Duration;
@@ -38,7 +39,6 @@ import com.google.gwt.user.client.Event.NativePreviewEvent;
 import com.google.gwt.user.client.Event.NativePreviewHandler;
 import com.google.gwt.user.client.ui.Widget;
 import com.vaadin.client.BrowserInfo;
-import com.vaadin.client.VConsole;
 
 /**
  * Provides one finger touch scrolling for elements with once scrollable
@@ -173,7 +173,7 @@ public class TouchScrollDelegate implements NativePreviewHandler {
         }
 
         public void debug(Element e) {
-            VConsole.log("Classes: " + e.getClassName() + " overflow: "
+            getLogger().info("Classes: " + e.getClassName() + " overflow: "
                     + e.getStyle().getProperty("overflow") + " w-o-s: "
                     + e.getStyle().getProperty("WebkitOverflowScrolling"));
         }
@@ -311,7 +311,7 @@ public class TouchScrollDelegate implements NativePreviewHandler {
         }
         Touch touch = nativeEvent.getTouches().get(0);
         if (detectScrolledElement(touch)) {
-            VConsole.log("TouchDelegate takes over");
+            getLogger().info("TouchDelegate takes over");
             nativeEvent.stopPropagation();
             handlerRegistration = Event.addNativePreviewHandler(this);
             activeScrollDelegate = this;
@@ -321,7 +321,7 @@ public class TouchScrollDelegate implements NativePreviewHandler {
             nextEvent = 1;
 
             origScrollTop = getScrollTop();
-            VConsole.log("ST" + origScrollTop);
+            getLogger().info("ST" + origScrollTop);
 
             moved = false;
             // event.preventDefault();
@@ -357,7 +357,7 @@ public class TouchScrollDelegate implements NativePreviewHandler {
         if (time <= 0) {
             time = 1; // get animation and transition end event
         }
-        VConsole.log("Animate " + time + " " + from + " " + to);
+        getLogger().info("Animate " + time + " " + from + " " + to);
         int translateTo = -to + origScrollTop;
         int fromY = -from + origScrollTop;
         if (ANDROID_WITH_BROKEN_SCROLL_TOP) {
@@ -433,7 +433,7 @@ public class TouchScrollDelegate implements NativePreviewHandler {
     private void onTouchMove(NativeEvent event) {
         if (!moved) {
             double l = (getTimeStamp() - eventTimeStamps[0]);
-            VConsole.log(l + " ms from start to move");
+            getLogger().info(l + " ms from start to move");
         }
         boolean handleMove = readPositionAndSpeed(event);
         if (handleMove) {
@@ -527,22 +527,22 @@ public class TouchScrollDelegate implements NativePreviewHandler {
             double pixelsPerMs = calculateSpeed();
             // we are currently within scrollable area, calculate pixels that
             // we'll move due to momentum
-            VConsole.log("pxPerMs" + pixelsPerMs);
+            getLogger().info("pxPerMs" + pixelsPerMs);
             pixelsToMove = (int) (0.5 * pixelsPerMs * pixelsPerMs / FRICTION);
             if (pixelsPerMs < 0) {
                 pixelsToMove = -pixelsToMove;
             }
-            // VConsole.log("pixels to move" + pixelsToMove);
+            // getLogger().info("pixels to move" + pixelsToMove);
 
             finalY = currentY + pixelsToMove;
 
             if (finalY > maxFinalY + getMaxOverScroll()) {
-                // VConsole.log("To max overscroll");
+                // getLogger().info("To max overscroll");
                 finalY = getMaxFinalY() + getMaxOverScroll();
                 int fixedPixelsToMove = finalY - currentY;
                 pixelsToMove = fixedPixelsToMove;
             } else if (finalY < 0 - getMaxOverScroll()) {
-                // VConsole.log("to min overscroll");
+                // getLogger().info("to min overscroll");
                 finalY = -getMaxOverScroll();
                 int fixedPixelsToMove = finalY - currentY;
                 pixelsToMove = fixedPixelsToMove;
@@ -556,13 +556,13 @@ public class TouchScrollDelegate implements NativePreviewHandler {
             duration = getAnimationTimeForDistance(pixelsToMove);
         }
         if (duration > MAX_DURATION) {
-            VConsole.log("Max animation time. " + duration);
+            getLogger().info("Max animation time. " + duration);
             duration = MAX_DURATION;
         }
         finalScrollTop = finalY;
 
         if (Math.abs(pixelsToMove) < 3 || duration < 20) {
-            VConsole.log("Small 'momentum' " + pixelsToMove + " |  " + duration
+            getLogger().info("Small 'momentum' " + pixelsToMove + " |  " + duration
                     + " Skipping animation,");
             moveTransformationToScrolloffset();
             return;
@@ -579,7 +579,7 @@ public class TouchScrollDelegate implements NativePreviewHandler {
 
     private double calculateSpeed() {
         if (nextEvent < EVENTS_FOR_SPEED_CALC) {
-            VConsole.log("Not enough data for speed calculation");
+            getLogger().info("Not enough data for speed calculation");
             // not enough data for decent speed calculation, no momentum :-(
             return 0;
         }
@@ -701,7 +701,7 @@ public class TouchScrollDelegate implements NativePreviewHandler {
             }
             break;
         default:
-            VConsole.log("Non touch event:" + event.getNativeEvent().getType());
+            getLogger().info("Non touch event:" + event.getNativeEvent().getType());
             event.cancel();
             break;
         }
@@ -721,4 +721,7 @@ public class TouchScrollDelegate implements NativePreviewHandler {
         return Duration.currentTimeMillis();
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(TouchScrollDelegate.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VAbstractCalendarPanel.java

@@ -19,6 +19,7 @@ package com.vaadin.client.ui;
 import java.util.Date;
 import java.util.List;
 import java.util.function.Predicate;
+import java.util.logging.Logger;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
@@ -51,7 +52,6 @@ import com.google.gwt.user.client.ui.InlineHTML;
 import com.google.gwt.user.client.ui.Widget;
 import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.DateTimeService;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.shared.util.SharedUtil;
 
@@ -392,7 +392,7 @@ public abstract class VAbstractCalendarPanel<R extends Enum<R>>
 
             selectDate(focusedDate);
         } else {
-            VConsole.log("Trying to select a the focused date which is NULL!");
+            getLogger().info("Trying to select a the focused date which is NULL!");
         }
     }
 
@@ -2017,4 +2017,8 @@ public abstract class VAbstractCalendarPanel<R extends Enum<R>>
             }
         }
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(VAbstractCalendarPanel.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VAbstractPopupCalendar.java

@@ -17,6 +17,7 @@
 package com.vaadin.client.ui;
 
 import java.util.Date;
+import java.util.logging.Logger;
 
 import com.google.gwt.aria.client.Id;
 import com.google.gwt.aria.client.LiveValue;
@@ -43,7 +44,6 @@ import com.google.gwt.user.client.ui.RootPanel;
 import com.google.gwt.user.client.ui.Widget;
 import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.ComputedStyle;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ui.VAbstractCalendarPanel.SubmitListener;
 import com.vaadin.client.ui.aria.AriaHelper;
 import com.vaadin.shared.ui.datefield.TextualDateFieldState;
@@ -394,7 +394,7 @@ public abstract class VAbstractPopupCalendar<PANEL extends VAbstractCalendarPane
             popup.setHeight("");
             popup.setPopupPositionAndShow(new PopupPositionCallback());
         } else {
-            VConsole.error("Cannot reopen popup, it is already open!");
+            getLogger().severe("Cannot reopen popup, it is already open!");
         }
     }
 
@@ -721,4 +721,7 @@ public abstract class VAbstractPopupCalendar<PANEL extends VAbstractCalendarPane
         }
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VAbstractPopupCalendar.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VAbstractSplitPanel.java

@@ -18,6 +18,7 @@ package com.vaadin.client.ui;
 
 import java.util.Collections;
 import java.util.List;
+import java.util.logging.Logger;
 
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.dom.client.Node;
@@ -39,7 +40,6 @@ import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.ComponentConnector;
 import com.vaadin.client.ConnectorMap;
 import com.vaadin.client.LayoutManager;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.ui.TouchScrollDelegate.TouchScrollHandler;
 import com.vaadin.client.ui.VAbstractSplitPanel.SplitterMoveHandler.SplitterMoveEvent;
@@ -138,7 +138,7 @@ public abstract class VAbstractSplitPanel extends ComplexPanel {
 
         addDomHandler(event -> {
             // TODO When does this actually happen??
-            VConsole.log("TOUCH CANCEL");
+            getLogger().info("TOUCH CANCEL");
         }, TouchCancelEvent.getType());
         addDomHandler(event -> {
             Node target = event.getTouches().get(0).getTarget().cast();
@@ -847,4 +847,8 @@ public abstract class VAbstractSplitPanel extends ComplexPanel {
         touchScrollHandler.addElement(firstContainer);
         touchScrollHandler.addElement(secondContainer);
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(VAbstractSplitPanel.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VAbstractTextualDate.java

@@ -17,6 +17,8 @@
 package com.vaadin.client.ui;
 
 import java.util.Date;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import com.google.gwt.aria.client.Roles;
 import com.google.gwt.dom.client.Element;
@@ -33,7 +35,6 @@ import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.Focusable;
 import com.vaadin.client.LocaleNotLoadedException;
 import com.vaadin.client.LocaleService;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ui.aria.AriaHelper;
 import com.vaadin.client.ui.aria.HandlesAriaCaption;
 import com.vaadin.client.ui.aria.HandlesAriaInvalid;
@@ -129,7 +130,8 @@ public abstract class VAbstractTextualDate<R extends Enum<R>>
         } catch (LocaleNotLoadedException e) {
             // TODO should die instead? Can the component survive
             // without format string?
-            VConsole.error(e);
+            getLogger().log(Level.SEVERE,
+                    e.getMessage() == null ? "" : e.getMessage(), e);
             return null;
         }
     }
@@ -240,7 +242,8 @@ public abstract class VAbstractTextualDate<R extends Enum<R>>
                 // remove possibly added invalid value indication
                 removeStyleName(getStylePrimaryName() + PARSE_ERROR_CLASSNAME);
             } catch (final Exception e) {
-                VConsole.log(e);
+                getLogger().log(Level.INFO,
+                        e.getMessage() == null ? "" : e.getMessage(), e);
 
                 addStyleName(getStylePrimaryName() + PARSE_ERROR_CLASSNAME);
                 setDate(null);
@@ -473,4 +476,8 @@ public abstract class VAbstractTextualDate<R extends Enum<R>>
         }
         return DateTimeFormat.getFormat(ISO_DATE_PATTERN);
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(VAbstractTextualDate.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VComboBox.java

@@ -23,6 +23,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Set;
+import java.util.logging.Logger;
 
 import com.google.gwt.animation.client.AnimationScheduler;
 import com.google.gwt.aria.client.Roles;
@@ -71,7 +72,6 @@ import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.ComputedStyle;
 import com.vaadin.client.DeferredWorker;
 import com.vaadin.client.Focusable;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.ui.aria.AriaHelper;
 import com.vaadin.client.ui.aria.HandlesAriaCaption;
@@ -2197,7 +2197,7 @@ public class VComboBox extends Composite implements Field, KeyDownHandler,
 
     private void debug(String string) {
         if (enableDebug) {
-            VConsole.error(string);
+            getLogger().severe(string);
         }
     }
 
@@ -2917,4 +2917,8 @@ public class VComboBox extends Composite implements Field, KeyDownHandler,
             setText(emptySelectionCaption);
         }
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(VComboBox.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VDragAndDropWrapper.java

@@ -19,6 +19,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
+import java.util.logging.Logger;
 
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.JsArrayString;
@@ -40,7 +41,6 @@ import com.vaadin.client.ConnectorMap;
 import com.vaadin.client.LayoutManager;
 import com.vaadin.client.MouseEventDetailsBuilder;
 import com.vaadin.client.Util;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ValueMap;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.ui.dd.DDUtil;
@@ -188,10 +188,10 @@ public class VDragAndDropWrapper extends VCustomComponent
             if (dragStartElement == null) {
                 dragStartElement = getDragStartElement();
                 dragStartElement.setPropertyBoolean(DRAGGABLE, true);
-                VConsole.log("draggable = "
+                getLogger().info("draggable = "
                         + dragStartElement.getPropertyBoolean(DRAGGABLE));
                 hookHtml5DragStart(dragStartElement);
-                VConsole.log("drag start listeners hooked.");
+                getLogger().info("drag start listeners hooked.");
             }
         } else {
             dragStartElement = null;
@@ -281,7 +281,7 @@ public class VDragAndDropWrapper extends VCustomComponent
                 event.preventDefault();
                 event.stopPropagation();
             } catch (Exception e) {
-                // VConsole.log("IE9 fails");
+                // getLogger().info("IE9 fails");
             }
             return false;
         } catch (Exception e) {
@@ -316,7 +316,7 @@ public class VDragAndDropWrapper extends VCustomComponent
                 event.preventDefault();
                 event.stopPropagation();
             } catch (Exception e) {
-                // VConsole.log("IE9 fails");
+                // getLogger().info("IE9 fails");
             }
             return false;
         } catch (Exception e) {
@@ -355,7 +355,7 @@ public class VDragAndDropWrapper extends VCustomComponent
             event.preventDefault();
             event.stopPropagation();
         } catch (Exception e) {
-            // VConsole.log("IE9 fails");
+            // getLogger().info("IE9 fails");
         }
         return false;
     }
@@ -387,7 +387,7 @@ public class VDragAndDropWrapper extends VCustomComponent
                 if (event.isFile(i)) {
                     final int fileId = filecounter++;
                     final VHtml5File file = event.getFile(i);
-                    VConsole.log("Preparing to upload file " + file.getName()
+                    getLogger().info("Preparing to upload file " + file.getName()
                             + " with id " + fileId + ", size="
                             + file.getSize());
                     transferable.setData("fi" + fileIndex, "" + fileId);
@@ -408,7 +408,7 @@ public class VDragAndDropWrapper extends VCustomComponent
                 event.preventDefault();
                 event.stopPropagation();
             } catch (Exception e) {
-                // VConsole.log("IE9 fails");
+                // getLogger().info("IE9 fails");
             }
             return false;
         } catch (Exception e) {
@@ -701,4 +701,7 @@ public class VDragAndDropWrapper extends VCustomComponent
 
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VDragAndDropWrapper.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VDragAndDropWrapperIE.java

@@ -16,18 +16,19 @@
 
 package com.vaadin.client.ui;
 
+import java.util.logging.Logger;
+
 import com.google.gwt.dom.client.AnchorElement;
 import com.google.gwt.dom.client.Document;
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.user.client.DOM;
-import com.vaadin.client.VConsole;
 
 public class VDragAndDropWrapperIE extends VDragAndDropWrapper {
     private AnchorElement anchor = null;
 
     @Override
     protected com.google.gwt.user.client.Element getDragStartElement() {
-        VConsole.log("IE get drag start element...");
+        getLogger().info("IE get drag start element...");
         Element div = getElement();
         if (dragStartMode == HTML5) {
             if (anchor == null) {
@@ -36,7 +37,7 @@ public class VDragAndDropWrapperIE extends VDragAndDropWrapper {
                 anchor.setClassName("drag-start");
                 div.appendChild(anchor);
             }
-            VConsole.log("IE get drag start element...");
+            getLogger().info("IE get drag start element...");
             return anchor.cast();
         } else {
             if (anchor != null) {
@@ -92,4 +93,7 @@ public class VDragAndDropWrapperIE extends VDragAndDropWrapper {
         hookHtml5Events(DOM.asOld(el));
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VDragAndDropWrapperIE.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VEmbedded.java

@@ -18,6 +18,7 @@ package com.vaadin.client.ui;
 
 import java.util.HashMap;
 import java.util.Map;
+import java.util.logging.Logger;
 
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.user.client.DOM;
@@ -29,7 +30,6 @@ import com.vaadin.client.ComponentConnector;
 import com.vaadin.client.ConnectorMap;
 import com.vaadin.client.UIDL;
 import com.vaadin.client.Util;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.shared.ui.embedded.EmbeddedState;
 
@@ -251,9 +251,12 @@ public class VEmbedded extends HTML {
     public void onBrowserEvent(Event event) {
         super.onBrowserEvent(event);
         if (DOM.eventGetType(event) == Event.ONLOAD) {
-            VConsole.log("Embeddable onload");
+            getLogger().info("Embeddable onload");
             Util.notifyParentOfSizeChange(this, true);
         }
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VEmbedded.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VPopupTimeCalendar.java

@@ -24,11 +24,12 @@ import static com.vaadin.shared.ui.datefield.DateTimeResolution.YEAR;
 
 import java.util.Date;
 import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import com.google.gwt.core.client.GWT;
 import com.vaadin.client.LocaleNotLoadedException;
 import com.vaadin.client.LocaleService;
-import com.vaadin.client.VConsole;
 import com.vaadin.shared.ui.datefield.DateTimeResolution;
 
 /**
@@ -180,7 +181,8 @@ public class VPopupTimeCalendar extends
         } catch (LocaleNotLoadedException e) {
             // TODO should die instead? Can the component survive
             // without format string?
-            VConsole.error(e);
+            getLogger().log(Level.SEVERE,
+                    e.getMessage() == null ? "" : e.getMessage(), e);
             return null;
         }
     }
@@ -202,4 +204,7 @@ public class VPopupTimeCalendar extends
         return true;
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VPopupTimeCalendar.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VPopupView.java

@@ -19,6 +19,7 @@ import java.util.Collections;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.Set;
+import java.util.logging.Logger;
 
 import com.google.gwt.core.client.Scheduler;
 import com.google.gwt.dom.client.Element;
@@ -40,7 +41,6 @@ import com.vaadin.client.ApplicationConnection;
 import com.vaadin.client.ComponentConnector;
 import com.vaadin.client.DeferredWorker;
 import com.vaadin.client.VCaptionWrapper;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.communication.StateChangeEvent;
 import com.vaadin.client.ui.ShortcutActionHandler.ShortcutActionHandlerOwner;
 import com.vaadin.client.ui.popupview.VisibilityChangeEvent;
@@ -292,7 +292,7 @@ public class VPopupView extends HTML
 
         @Override
         public void hide(boolean autoClosed) {
-            VConsole.log("Hiding popupview");
+            getLogger().info("Hiding popupview");
             syncChildren();
             clearPopupComponentConnector();
             hasHadMouseOver = false;
@@ -430,4 +430,7 @@ public class VPopupView extends HTML
         return popupShowInProgress;
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VPopupView.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VUI.java

@@ -17,6 +17,7 @@
 package com.vaadin.client.ui;
 
 import java.util.List;
+import java.util.logging.Logger;
 
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.event.dom.client.HasScrollHandlers;
@@ -35,7 +36,6 @@ import com.vaadin.client.ConnectorMap;
 import com.vaadin.client.Focusable;
 import com.vaadin.client.LayoutManager;
 import com.vaadin.client.Profiler;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.ui.ShortcutActionHandler.ShortcutActionHandlerOwner;
 import com.vaadin.client.ui.TouchScrollDelegate.TouchScrollHandler;
@@ -184,14 +184,14 @@ public class VUI extends SimplePanel implements ResizeHandler,
             changed = true;
             connector.getLayoutManager().reportOuterWidth(connector,
                     newWindowWidth);
-            VConsole.log("New window width: " + windowWidth);
+            getLogger().info("New window width: " + windowWidth);
         }
         if (windowHeight != newWindowHeight) {
             windowHeight = newWindowHeight;
             changed = true;
             connector.getLayoutManager().reportOuterHeight(connector,
                     newWindowHeight);
-            VConsole.log("New window height: " + windowHeight);
+            getLogger().info("New window height: " + windowHeight);
         }
         Element parentElement = getElement().getParentElement();
         if (isMonitoringParentSize() && parentElement != null) {
@@ -201,12 +201,12 @@ public class VUI extends SimplePanel implements ResizeHandler,
             if (parentWidth != newParentWidth) {
                 parentWidth = newParentWidth;
                 changed = true;
-                VConsole.log("New parent width: " + parentWidth);
+                getLogger().info("New parent width: " + parentWidth);
             }
             if (parentHeight != newParentHeight) {
                 parentHeight = newParentHeight;
                 changed = true;
-                VConsole.log("New parent height: " + parentHeight);
+                getLogger().info("New parent height: " + parentHeight);
             }
         }
         if (changed) {
@@ -217,7 +217,7 @@ public class VUI extends SimplePanel implements ResizeHandler,
              * should shrink as the content's size is fixed and would thus not
              * automatically shrink.)
              */
-            VConsole.log(
+            getLogger().info(
                     "Running layout functions due to window or parent resize");
 
             // update size to avoid (most) redundant re-layout passes
@@ -419,4 +419,7 @@ public class VUI extends SimplePanel implements ResizeHandler,
         }
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VUI.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/VUpload.java

@@ -16,6 +16,8 @@
 
 package com.vaadin.client.ui;
 
+import java.util.logging.Logger;
+
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.Scheduler;
 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
@@ -35,7 +37,6 @@ import com.vaadin.client.ApplicationConnection;
 import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.ConnectorMap;
 import com.vaadin.client.StyleConstants;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ui.upload.UploadConnector;
 import com.vaadin.client.ui.upload.UploadIFrameOnloadStrategy;
 import com.vaadin.shared.ui.upload.UploadServerRpc;
@@ -258,7 +259,7 @@ public class VUpload extends SimplePanel {
                     if (t != null) {
                         t.cancel();
                     }
-                    VConsole.log("VUpload:Submit complete");
+                    getLogger().info("VUpload:Submit complete");
                     if (isAttached()) {
                         // no need to call poll() if component is already
                         // detached #8728
@@ -303,7 +304,7 @@ public class VUpload extends SimplePanel {
                 // Only visit the server if the upload has not already
                 // finished
                 if (thisUploadId == nextUploadId) {
-                    VConsole.log(
+                    getLogger().info(
                             "Visiting server to see if upload started event changed UI.");
                     client.updateVariable(paintableId, "pollForStart",
                             thisUploadId, true);
@@ -316,11 +317,11 @@ public class VUpload extends SimplePanel {
     /** For internal use only. May be removed or replaced in the future. */
     public void submit() {
         if (submitted || !enabled) {
-            VConsole.log("Submit cancelled (disabled or already submitted)");
+            getLogger().info("Submit cancelled (disabled or already submitted)");
             return;
         }
         if (fu.getFilename().isEmpty()) {
-            VConsole.log("Submitting empty selection (no file)");
+            getLogger().info("Submitting empty selection (no file)");
         }
         // flush possibly pending variable changes, so they will be handled
         // before upload
@@ -399,4 +400,7 @@ public class VUpload extends SimplePanel {
         }
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VUpload.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/datefield/AbstractDateFieldConnector.java

@@ -18,11 +18,12 @@ package com.vaadin.client.ui.datefield;
 import java.util.Map;
 import java.util.Optional;
 import java.util.function.Function;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 import com.vaadin.client.LocaleNotLoadedException;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.communication.StateChangeEvent;
 import com.vaadin.client.ui.AbstractFieldConnector;
 import com.vaadin.client.ui.VDateField;
@@ -106,10 +107,11 @@ public abstract class AbstractDateFieldConnector<R extends Enum<R>>
             widget.setCurrentLocale(locale);
         } catch (final LocaleNotLoadedException e) {
             widget.setCurrentLocale(widget.dts.getLocale());
-            VConsole.error("Tried to use an unloaded locale \"" + locale
+            getLogger().severe("Tried to use an unloaded locale \"" + locale
                     + "\". Using default locale (" + widget.getCurrentLocale()
                     + ").");
-            VConsole.error(e);
+            getLogger().log(Level.SEVERE,
+                    e.getMessage() == null ? "" : e.getMessage(), e);
         }
 
         // We show week numbers only if the week starts with Monday, as ISO 8601
@@ -130,4 +132,8 @@ public abstract class AbstractDateFieldConnector<R extends Enum<R>>
         widget.setCurrentDate(getTimeValues());
         widget.setDefaultDate(getDefaultValues());
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(AbstractDateFieldConnector.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/dd/VDragAndDropManager.java

@@ -16,6 +16,7 @@
 package com.vaadin.client.ui.dd;
 
 import java.util.Locale;
+import java.util.logging.Logger;
 
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.Scheduler;
@@ -37,7 +38,6 @@ import com.vaadin.client.ComponentConnector;
 import com.vaadin.client.MouseEventDetailsBuilder;
 import com.vaadin.client.Profiler;
 import com.vaadin.client.UIDL;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ValueMap;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.extensions.DragSourceExtensionConnector;
@@ -704,7 +704,7 @@ public class VDragAndDropManager {
             ApplicationConnection connection = getCurrentDragApplicationConnection();
             Element dragImageParent;
             if (connection == null) {
-                VConsole.error(
+                getLogger().severe(
                         "Could not determine ApplicationConnection for current drag operation. The drag image will likely look broken");
                 dragImageParent = RootPanel.getBodyElement();
             } else {
@@ -763,4 +763,7 @@ public class VDragAndDropManager {
         }
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VDragAndDropManager.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/dd/VNot.java

@@ -15,8 +15,9 @@
  */
 package com.vaadin.client.ui.dd;
 
+import java.util.logging.Logger;
+
 import com.vaadin.client.UIDL;
-import com.vaadin.client.VConsole;
 import com.vaadin.event.dd.acceptcriteria.Not;
 import com.vaadin.shared.ui.dd.AcceptCriterion;
 import com.vaadin.ui.dnd.DropTargetExtension;
@@ -39,7 +40,7 @@ public final class VNot extends VAcceptCriterion {
         if (crit1 == null) {
             crit1 = getCriteria(drag, configuration, 0);
             if (crit1 == null) {
-                VConsole.log("Not criteria didn't found a child criteria");
+                getLogger().info("Not criteria didn't found a child criteria");
                 return;
             }
         }
@@ -69,4 +70,8 @@ public final class VNot extends VAcceptCriterion {
     protected boolean accept(VDragEvent drag, UIDL configuration) {
         return false; // not used
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(VNot.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/draganddropwrapper/DragAndDropWrapperConnector.java

@@ -25,7 +25,6 @@ import com.vaadin.client.ComponentConnector;
 import com.vaadin.client.ConnectorMap;
 import com.vaadin.client.Paintable;
 import com.vaadin.client.UIDL;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.extensions.DragSourceExtensionConnector;
 import com.vaadin.client.extensions.DropTargetExtensionConnector;
 import com.vaadin.client.ui.VDragAndDropWrapper;
@@ -88,7 +87,7 @@ public class DragAndDropWrapperConnector extends CustomComponentConnector
                                 && !receiverUrl
                                         .equals(widget.fileIdToReceiver
                                                 .get(fileId))) {
-                            VConsole.error(
+                            getLogger().severe(
                                     "Overwriting file receiver mapping for fileId "
                                             + fileId + " . Old receiver URL: "
                                             + widget.fileIdToReceiver

client/src/main/java/com/vaadin/client/ui/embedded/EmbeddedConnector.java

@@ -17,6 +17,7 @@
 package com.vaadin.client.ui.embedded;
 
 import java.util.Map;
+import java.util.logging.Logger;
 
 import com.google.gwt.dom.client.Document;
 import com.google.gwt.dom.client.Element;
@@ -27,7 +28,6 @@ import com.google.gwt.dom.client.ObjectElement;
 import com.google.gwt.dom.client.Style;
 import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.Event;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.VTooltip;
 import com.vaadin.client.communication.StateChangeEvent;
 import com.vaadin.client.ui.AbstractComponentConnector;
@@ -134,7 +134,7 @@ public class EmbeddedConnector extends AbstractComponentConnector {
                 setResourceUrl(getResourceUrl("src"));
                 clearBrowserElement = false;
             } else {
-                VConsole.error(
+                getLogger().severe(
                         "Unknown Embedded type '" + widget.type + "'");
             }
         } else if (state.mimeType != null) {
@@ -199,10 +199,10 @@ public class EmbeddedConnector extends AbstractComponentConnector {
                     obj.setInnerText(state.altText);
                 }
             } else {
-                VConsole.error("Unknown Embedded mimetype '" + mime + "'");
+                getLogger().severe("Unknown Embedded mimetype '" + mime + "'");
             }
         } else {
-            VConsole.error("Unknown Embedded; no type or mimetype attribute");
+            getLogger().severe("Unknown Embedded; no type or mimetype attribute");
         }
 
         if (clearBrowserElement) {
@@ -253,4 +253,7 @@ public class EmbeddedConnector extends AbstractComponentConnector {
 
     };
 
+    private static Logger getLogger() {
+        return Logger.getLogger(EmbeddedConnector.class.getName());
+    }
 }

client/src/main/java/com/vaadin/client/ui/layout/LayoutDependencyTree.java

@@ -31,7 +31,6 @@ import com.vaadin.client.JsArrayObject;
 import com.vaadin.client.Profiler;
 import com.vaadin.client.ServerConnector;
 import com.vaadin.client.Util;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ui.ManagedLayout;
 import com.vaadin.shared.AbstractComponentState;
 
@@ -722,10 +721,10 @@ public class LayoutDependencyTree {
     }
 
     public void logDependencyStatus(ComponentConnector connector) {
-        VConsole.log("====");
+        getLogger().info("====");
         String connectorId = connector.getConnectorId();
-        VConsole.log(getDependency(connectorId, HORIZONTAL).toString());
-        VConsole.log(getDependency(connectorId, VERTICAL).toString());
+        getLogger().info(getDependency(connectorId, HORIZONTAL).toString());
+        getLogger().info(getDependency(connectorId, VERTICAL).toString());
     }
 
     public boolean noMoreChangesExpected(ComponentConnector connector) {

compatibility-client/src/main/java/com/vaadin/v7/client/ui/VCalendarPanel.java

@@ -17,6 +17,7 @@
 package com.vaadin.v7.client.ui;
 
 import java.util.Date;
+import java.util.logging.Logger;
 
 import com.google.gwt.aria.client.Roles;
 import com.google.gwt.aria.client.SelectedValue;
@@ -53,7 +54,6 @@ import com.google.gwt.user.client.ui.ListBox;
 import com.google.gwt.user.client.ui.Widget;
 import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.DateTimeService;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.ui.FocusableFlexTable;
 import com.vaadin.client.ui.SubPartAware;
@@ -331,7 +331,7 @@ public class VCalendarPanel extends FocusableFlexTable implements
 
             selectDate(focusedDate);
         } else {
-            VConsole.log("Trying to select a the focused date which is NULL!");
+            getLogger().info("Trying to select a the focused date which is NULL!");
         }
     }
 
@@ -2247,4 +2247,8 @@ public class VCalendarPanel extends FocusableFlexTable implements
             }
         }
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(VCalendarPanel.class.getName());
+    }
 }

compatibility-client/src/main/java/com/vaadin/v7/client/ui/VFilterSelect.java

@@ -23,6 +23,7 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Set;
+import java.util.logging.Logger;
 
 import com.google.gwt.aria.client.Roles;
 import com.google.gwt.core.client.JavaScriptObject;
@@ -73,7 +74,6 @@ import com.vaadin.client.ConnectorMap;
 import com.vaadin.client.DeferredWorker;
 import com.vaadin.client.Focusable;
 import com.vaadin.client.UIDL;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.ui.Field;
 import com.vaadin.client.ui.Icon;
@@ -2048,7 +2048,7 @@ public class VFilterSelect extends Composite
 
     private void debug(String string) {
         if (enableDebug) {
-            VConsole.error(string);
+            getLogger().severe(string);
         }
     }
 
@@ -2660,4 +2660,7 @@ public class VFilterSelect extends Composite
         return explicitSelectedCaption;
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VFilterSelect.class.getName());
+    }
 }

compatibility-client/src/main/java/com/vaadin/v7/client/ui/VPopupCalendar.java

@@ -17,6 +17,7 @@
 package com.vaadin.v7.client.ui;
 
 import java.util.Date;
+import java.util.logging.Logger;
 
 import com.google.gwt.aria.client.Id;
 import com.google.gwt.aria.client.LiveValue;
@@ -47,7 +48,6 @@ import com.google.gwt.user.client.ui.RootPanel;
 import com.google.gwt.user.client.ui.Widget;
 import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.ComputedStyle;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ui.VOverlay;
 import com.vaadin.client.ui.aria.AriaHelper;
 import com.vaadin.v7.client.ui.VCalendarPanel.FocusOutListener;
@@ -406,7 +406,7 @@ public class VPopupCalendar extends VTextualDate
             popup.setHeight("");
             popup.setPopupPositionAndShow(new PopupPositionCallback());
         } else {
-            VConsole.error("Cannot reopen popup, it is already open!");
+            getLogger().severe("Cannot reopen popup, it is already open!");
         }
     }
 
@@ -715,4 +715,7 @@ public class VPopupCalendar extends VTextualDate
         }
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VPopupCalendar.class.getName());
+    }
 }

compatibility-client/src/main/java/com/vaadin/v7/client/ui/VScrollTable.java

@@ -90,7 +90,6 @@ import com.vaadin.client.StyleConstants;
 import com.vaadin.client.TooltipInfo;
 import com.vaadin.client.UIDL;
 import com.vaadin.client.Util;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.VTooltip;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.ui.Action;
@@ -1033,7 +1032,7 @@ public class VScrollTable extends FlowPanel
                 if (prev != null) {
                     return setRowFocus(prev);
                 } else {
-                    VConsole.log("no previous available");
+                    getLogger().info("no previous available");
                 }
             }
         }
@@ -2634,7 +2633,7 @@ public class VScrollTable extends FlowPanel
 
             if (client.getMessageSender().hasActiveRequest() || navKeyDown) {
                 // if client connection is busy, don't bother loading it more
-                VConsole.log("Postponed rowfetch");
+                getLogger().info("Postponed rowfetch");
                 schedule(250);
             } else if (allRenderedRowsAreNew() && !updatedReqRows) {
 
@@ -4789,7 +4788,7 @@ public class VScrollTable extends FlowPanel
 
         public void setLastRendered(int lastRendered) {
             if (totalRows >= 0 && lastRendered > totalRows) {
-                VConsole.log("setLastRendered: " + this.lastRendered + " -> "
+                getLogger().info("setLastRendered: " + this.lastRendered + " -> "
                         + lastRendered);
                 this.lastRendered = totalRows - 1;
             } else {
@@ -8183,7 +8182,7 @@ public class VScrollTable extends FlowPanel
                 if (currentlyFocusedRow != null) {
                     setRowFocus(currentlyFocusedRow);
                 } else {
-                    VConsole.log("no row?");
+                    getLogger().info("no row?");
                     focusRowFromBody();
                 }
                 scrollBody.ensureFocus();
@@ -8258,7 +8257,7 @@ public class VScrollTable extends FlowPanel
 
     private void debug(String msg) {
         if (enableDebug) {
-            VConsole.error(msg);
+            getLogger().severe(msg);
         }
     }
 

compatibility-client/src/main/java/com/vaadin/v7/client/ui/VTextualDate.java

@@ -17,6 +17,8 @@
 package com.vaadin.v7.client.ui;
 
 import java.util.Date;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import com.google.gwt.aria.client.Roles;
 import com.google.gwt.event.dom.client.BlurEvent;
@@ -33,7 +35,6 @@ import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.Focusable;
 import com.vaadin.client.LocaleNotLoadedException;
 import com.vaadin.client.LocaleService;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ui.SubPartAware;
 import com.vaadin.client.ui.aria.AriaHelper;
 import com.vaadin.client.ui.aria.HandlesAriaCaption;
@@ -163,7 +164,8 @@ public class VTextualDate extends VDateField
                 } catch (LocaleNotLoadedException e) {
                     // TODO should die instead? Can the component survive
                     // without format string?
-                    VConsole.error(e);
+                    getLogger().log(Level.SEVERE,
+                            e.getMessage() == null ? "" : e.getMessage(), e);
                 }
             }
         }
@@ -261,7 +263,8 @@ public class VTextualDate extends VDateField
                 // remove possibly added invalid value indication
                 removeStyleName(getStylePrimaryName() + PARSE_ERROR_CLASSNAME);
             } catch (final Exception e) {
-                VConsole.log(e);
+                getLogger().log(Level.INFO,
+                        e.getMessage() == null ? "" : e.getMessage(), e);
 
                 addStyleName(getStylePrimaryName() + PARSE_ERROR_CLASSNAME);
                 // this is a hack that may eventually be removed
@@ -407,4 +410,8 @@ public class VTextualDate extends VDateField
             onChange(null);
         }
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(VTextualDate.class.getName());
+    }
 }

compatibility-client/src/main/java/com/vaadin/v7/client/ui/VUpload.java

@@ -16,6 +16,8 @@
 
 package com.vaadin.v7.client.ui;
 
+import java.util.logging.Logger;
+
 import com.google.gwt.core.client.GWT;
 import com.google.gwt.core.client.Scheduler;
 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
@@ -38,7 +40,6 @@ import com.vaadin.client.ApplicationConnection;
 import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.ConnectorMap;
 import com.vaadin.client.StyleConstants;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.ui.VButton;
 import com.vaadin.v7.client.ui.upload.UploadConnector;
 import com.vaadin.v7.client.ui.upload.UploadIFrameOnloadStrategy;
@@ -248,7 +249,7 @@ public class VUpload extends SimplePanel {
                         if (t != null) {
                             t.cancel();
                         }
-                        VConsole.log("VUpload:Submit complete");
+                        getLogger().info("VUpload:Submit complete");
                         if (isAttached()) {
                             // no need to call poll() if component is already
                             // detached #8728
@@ -296,7 +297,7 @@ public class VUpload extends SimplePanel {
                     // Only visit the server if the upload has not already
                     // finished
                     if (thisUploadId == nextUploadId) {
-                        VConsole.log(
+                        getLogger().info(
                                 "Visiting server to see if upload started event changed UI.");
                         client.updateVariable(paintableId, "pollForStart",
                                 thisUploadId, true);
@@ -311,11 +312,11 @@ public class VUpload extends SimplePanel {
     /** For internal use only. May be removed or replaced in the future. */
     public void submit() {
         if (submitted || !enabled) {
-            VConsole.log("Submit cancelled (disabled or already submitted)");
+            getLogger().info("Submit cancelled (disabled or already submitted)");
             return;
         }
         if (fu.getFilename().isEmpty()) {
-            VConsole.log("Submitting empty selection (no file)");
+            getLogger().info("Submitting empty selection (no file)");
         }
         // flush possibly pending variable changes, so they will be handled
         // before upload
@@ -394,4 +395,7 @@ public class VUpload extends SimplePanel {
         }
     }
 
+    private static Logger getLogger() {
+        return Logger.getLogger(VUpload.class.getName());
+    }
 }

compatibility-client/src/main/java/com/vaadin/v7/client/ui/calendar/CalendarConnector.java

@@ -22,6 +22,8 @@ import java.util.Date;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import com.google.gwt.core.shared.GWT;
 import com.google.gwt.dom.client.Element;
@@ -35,7 +37,6 @@ import com.vaadin.client.ApplicationConnection;
 import com.vaadin.client.Paintable;
 import com.vaadin.client.TooltipInfo;
 import com.vaadin.client.UIDL;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.communication.RpcProxy;
 import com.vaadin.client.communication.StateChangeEvent;
@@ -514,7 +515,7 @@ public class CalendarConnector extends AbstractLegacyComponentConnector
                     actionStartDate = getActionStartDate(actionKey);
                     actionEndDate = getActionEndDate(actionKey);
                 } catch (ParseException pe) {
-                    VConsole.error("Failed to parse action date");
+                    getLogger().severe("Failed to parse action date");
                     continue;
                 }
 
@@ -666,7 +667,8 @@ public class CalendarConnector extends AbstractLegacyComponentConnector
                 a.setActionStartDate(getActionStartDate(actionKey));
                 a.setActionEndDate(getActionEndDate(actionKey));
             } catch (ParseException pe) {
-                VConsole.error(pe);
+                getLogger().log(Level.SEVERE,
+                        pe.getMessage() == null ? "" : pe.getMessage(), pe);
             }
 
             actions.add(a);
@@ -741,4 +743,8 @@ public class CalendarConnector extends AbstractLegacyComponentConnector
         getWidget().setSizeForChildren(width, height);
 
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(CalendarConnector.class.getName());
+    }
 }

compatibility-client/src/main/java/com/vaadin/v7/client/ui/datefield/AbstractDateFieldConnector.java

@@ -16,12 +16,13 @@
 package com.vaadin.v7.client.ui.datefield;
 
 import java.util.Date;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import com.vaadin.client.ApplicationConnection;
 import com.vaadin.client.LocaleNotLoadedException;
 import com.vaadin.client.Paintable;
 import com.vaadin.client.UIDL;
-import com.vaadin.client.VConsole;
 import com.vaadin.v7.client.ui.AbstractFieldConnector;
 import com.vaadin.v7.client.ui.VDateField;
 import com.vaadin.v7.shared.ui.datefield.DateFieldConstants;
@@ -51,10 +52,11 @@ public class AbstractDateFieldConnector extends AbstractFieldConnector
                 getWidget().setCurrentLocale(locale);
             } catch (final LocaleNotLoadedException e) {
                 getWidget().setCurrentLocale(getWidget().dts.getLocale());
-                VConsole.error("Tried to use an unloaded locale \"" + locale
+                getLogger().severe("Tried to use an unloaded locale \"" + locale
                         + "\". Using default locale ("
                         + getWidget().getCurrentLocale() + ").");
-                VConsole.error(e);
+                getLogger().log(Level.SEVERE,
+                        e.getMessage() == null ? "" : e.getMessage(), e);
             }
         }
 
@@ -119,4 +121,8 @@ public class AbstractDateFieldConnector extends AbstractFieldConnector
     public VDateField getWidget() {
         return (VDateField) super.getWidget();
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(AbstractDateFieldConnector.class.getName());
+    }
 }

compatibility-client/src/main/java/com/vaadin/v7/client/ui/tree/TreeConnector.java

@@ -19,6 +19,8 @@ import java.util.HashMap;
 import java.util.Iterator;
 import java.util.Map;
 import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 import com.google.gwt.aria.client.Roles;
 import com.google.gwt.dom.client.Element;
@@ -28,7 +30,6 @@ import com.vaadin.client.BrowserInfo;
 import com.vaadin.client.Paintable;
 import com.vaadin.client.TooltipInfo;
 import com.vaadin.client.UIDL;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.WidgetUtil;
 import com.vaadin.client.communication.StateChangeEvent;
 import com.vaadin.shared.MouseEventDetails;
@@ -211,7 +212,8 @@ public class TreeConnector extends AbstractLegacyComponentConnector
                 levelProperty = Integer.valueOf(levelPropertyString);
             } catch (NumberFormatException e) {
                 levelProperty = 1;
-                VConsole.error(e);
+                getLogger().log(Level.SEVERE,
+                        e.getMessage() == null ? "" : e.getMessage(), e);
             }
 
             renderChildNodes(rootNode, (Iterator) uidl.iterator(),
@@ -392,4 +394,8 @@ public class TreeConnector extends AbstractLegacyComponentConnector
 
         WidgetUtil.clearTextSelection();
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(TreeConnector.class.getName());
+    }
 }

compatibility-server/src/main/java/com/vaadin/v7/ui/Grid.java

@@ -4453,7 +4453,6 @@ public class Grid extends AbstractComponent
         private static Logger getLogger() {
             return Logger.getLogger(AbstractRenderer.class.getName());
         }
-
     }
 
     /**

uitest/src/main/java/com/vaadin/tests/widgetset/client/helloworldfeature/HelloWorldExtensionConnector.java

@@ -15,10 +15,11 @@
  */
 package com.vaadin.tests.widgetset.client.helloworldfeature;
 
+import java.util.logging.Logger;
+
 import com.google.gwt.user.client.Window;
 import com.vaadin.client.ServerConnector;
 import com.vaadin.client.Util;
-import com.vaadin.client.VConsole;
 import com.vaadin.client.extensions.AbstractExtensionConnector;
 import com.vaadin.shared.ui.Connect;
 import com.vaadin.tests.extensions.HelloWorldExtension;
@@ -45,9 +46,13 @@ public class HelloWorldExtensionConnector extends AbstractExtensionConnector {
         String msg = getState().getGreeting() + " from "
                 + Util.getConnectorString(this) + " attached to "
                 + Util.getConnectorString(getParent());
-        VConsole.log(msg);
+        getLogger().info(msg);
 
         String response = Window.prompt(msg, "");
         getRpcProxy(HelloWorldRpc.class).onMessageSent(response);
     }
+
+    private static Logger getLogger() {
+        return Logger.getLogger(HelloWorldExtensionConnector.class.getName());
+    }
 }