Remove unused imports (#10330)

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

@@ -102,16 +102,14 @@ public class FocusUtil {
         return focusableChildren;
     }-*/;
 
-    public static void focusOnFirstFocusableElement(Element parent)
-    {
+    public static void focusOnFirstFocusableElement(Element parent) {
         Element[] focusableChildren = getFocusableChildren(parent);
         if (focusableChildren.length > 0) {
             focusableChildren[0].focus();
         }
     }
 
-    public static void focusOnLastFocusableElement(Element parent)
-    {
+    public static void focusOnLastFocusableElement(Element parent) {
         Element[] focusableChildren = getFocusableChildren(parent);
         if (focusableChildren.length > 0) {
             focusableChildren[focusableChildren.length - 1].focus();

client/src/test/java/com/vaadin/client/VBrowserDetailsUserAgentParserTest.java

@@ -4,7 +4,6 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.shared.VBrowserDetails;

compatibility-server/src/test/java/com/vaadin/v7/data/util/AbstractContainerTestBase.java

@@ -10,8 +10,6 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 
-import org.junit.Assert;
-
 import com.vaadin.v7.data.Container;
 import com.vaadin.v7.data.Container.Filterable;
 import com.vaadin.v7.data.Container.ItemSetChangeEvent;

compatibility-server/src/test/java/com/vaadin/v7/data/util/BeanContainerTest.java

@@ -13,7 +13,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
-import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 

compatibility-server/src/test/java/com/vaadin/v7/data/util/GeneratedPropertyContainerBasicTest.java

@@ -9,7 +9,6 @@ import java.util.List;
 
 import org.easymock.Capture;
 import org.easymock.EasyMock;
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.v7.data.Container;

compatibility-server/src/test/java/com/vaadin/v7/data/util/IndexedContainerTest.java

@@ -8,7 +8,6 @@ import java.util.List;
 
 import org.easymock.Capture;
 import org.easymock.EasyMock;
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.v7.data.Container.Indexed.ItemAddEvent;

compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/calendar/CalendarBasicsTest.java

@@ -24,7 +24,6 @@ import java.util.GregorianCalendar;
 import java.util.Locale;
 import java.util.TimeZone;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.v7.ui.Calendar;

compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/grid/GridSelectionTest.java

@@ -21,7 +21,6 @@ import static org.junit.Assert.assertTrue;
 
 import java.util.Collection;
 
-import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 

compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/grid/declarative/GridHeaderFooterDeclarativeTest.java

@@ -17,7 +17,6 @@ package com.vaadin.v7.tests.server.component.grid.declarative;
 
 import org.jsoup.nodes.Element;
 import org.jsoup.parser.Tag;
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.shared.ui.ContentMode;

compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/grid/declarative/GridInlineDataDeclarativeTest.java

@@ -15,7 +15,6 @@
  */
 package com.vaadin.v7.tests.server.component.grid.declarative;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.v7.data.Container;

compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/table/TableDeclarativeTest.java

@@ -15,7 +15,6 @@
  */
 package com.vaadin.v7.tests.server.component.table;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.server.ExternalResource;

compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/textarea/TextAreaDeclarativeTest.java

@@ -19,7 +19,6 @@ import java.io.IOException;
 
 import org.jsoup.nodes.Element;
 import org.jsoup.parser.Tag;
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.tests.design.DeclarativeTestBase;

compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/tree/TreeTest.java

@@ -8,7 +8,6 @@ import static org.junit.Assert.assertTrue;
 import java.lang.reflect.Field;
 import java.util.HashSet;
 
-import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 

server/src/main/java/com/vaadin/server/communication/FileUploadHandler.java

@@ -430,7 +430,7 @@ public class FileUploadHandler implements RequestHandler {
         try {
             return Long.parseLong(request.getHeader("Content-Length"));
         } catch (NumberFormatException e) {
-            return -1l;
+            return -1;
         }
     }
 

server/src/main/java/com/vaadin/ui/TreeGrid.java

@@ -27,7 +27,6 @@ import org.jsoup.nodes.Attributes;
 import org.jsoup.nodes.Element;
 import org.jsoup.select.Elements;
 
-import com.vaadin.data.BeanPropertySet;
 import com.vaadin.data.HasHierarchicalDataProvider;
 import com.vaadin.data.HasValue;
 import com.vaadin.data.PropertyDefinition;

server/src/test/java/com/vaadin/tests/components/TreeTest.java

@@ -1,5 +1,11 @@
 package com.vaadin.tests.components;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import org.junit.Test;
+
 import com.vaadin.data.TreeData;
 import com.vaadin.data.provider.TreeDataProvider;
 import com.vaadin.event.CollapseEvent;
@@ -8,12 +14,6 @@ import com.vaadin.event.ExpandEvent;
 import com.vaadin.event.ExpandEvent.ExpandListener;
 import com.vaadin.server.ThemeResource;
 import com.vaadin.ui.Tree;
-import org.junit.Assert;
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
 
 public class TreeTest {
 

server/src/test/java/com/vaadin/tests/server/component/abstractlisting/AbstractListingDeclarativeTest.java

@@ -22,7 +22,6 @@ import java.util.Arrays;
 import java.util.List;
 import java.util.function.Consumer;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.data.provider.Query;

server/src/test/java/com/vaadin/tests/server/component/abstractmultiselect/AbstractMultiSelectDeclarativeTest.java

@@ -20,7 +20,6 @@ import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.tests.design.DeclarativeTestBaseBase;

server/src/test/java/com/vaadin/tests/server/component/abstractsingleselect/AbstractSingleSelectDeclarativeTest.java

@@ -20,7 +20,6 @@ import java.lang.reflect.Method;
 import java.util.Arrays;
 import java.util.List;
 
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.tests.design.DeclarativeTestBaseBase;

server/src/test/java/com/vaadin/tests/server/component/button/ButtonDeclarativeTest.java

@@ -17,7 +17,6 @@ package com.vaadin.tests.server.component.button;
 
 import org.jsoup.nodes.Element;
 import org.jsoup.parser.Tag;
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.event.ShortcutAction.KeyCode;

server/src/test/java/com/vaadin/tests/server/component/label/LabelDeclarativeTest.java

@@ -17,7 +17,6 @@ package com.vaadin.tests.server.component.label;
 
 import org.jsoup.nodes.Element;
 import org.jsoup.parser.Tag;
-import org.junit.Assert;
 import org.junit.Ignore;
 import org.junit.Test;
 

server/src/test/java/com/vaadin/tests/server/component/textarea/TextAreaDeclarativeTest.java

@@ -19,7 +19,6 @@ import java.io.IOException;
 
 import org.jsoup.nodes.Element;
 import org.jsoup.parser.Tag;
-import org.junit.Assert;
 import org.junit.Test;
 
 import com.vaadin.tests.server.component.abstracttextfield.AbstractTextFieldDeclarativeTest;

server/src/test/java/com/vaadin/tests/server/component/treegrid/TreeGridDeclarativeTest.java

@@ -2,8 +2,6 @@ package com.vaadin.tests.server.component.treegrid;
 
 import java.lang.reflect.InvocationTargetException;
 
-import org.junit.Assert;
-
 import com.vaadin.data.TreeData;
 import com.vaadin.data.provider.HierarchicalQuery;
 import com.vaadin.data.provider.TreeDataProvider;

uitest/src/main/java/com/vaadin/tests/components/abstractfield/IntegerFieldWithoutDataSource.java

@@ -2,7 +2,6 @@ package com.vaadin.tests.components.abstractfield;
 
 import com.vaadin.tests.components.TestBase;
 import com.vaadin.tests.util.Log;
-import com.vaadin.v7.data.Property.ValueChangeListener;
 import com.vaadin.v7.ui.TextField;
 
 public class IntegerFieldWithoutDataSource extends TestBase {

uitest/src/main/java/com/vaadin/tests/components/table/AsyncPushUpdates.java

@@ -19,7 +19,6 @@ import com.vaadin.annotations.Push;
 import com.vaadin.server.VaadinRequest;
 import com.vaadin.tests.components.AbstractReindeerTestUI;
 import com.vaadin.ui.Button;
-import com.vaadin.ui.Button.ClickEvent;
 import com.vaadin.v7.data.util.IndexedContainer;
 import com.vaadin.v7.ui.Table;
 

uitest/src/main/java/com/vaadin/tests/dd/DDTest6.java

@@ -40,8 +40,6 @@ import com.vaadin.ui.Html5File;
 import com.vaadin.ui.Label;
 import com.vaadin.ui.VerticalLayout;
 import com.vaadin.ui.Window;
-import com.vaadin.v7.data.Property;
-import com.vaadin.v7.data.Property.ValueChangeEvent;
 import com.vaadin.v7.data.util.BeanItemContainer;
 import com.vaadin.v7.data.util.ContainerHierarchicalWrapper;
 import com.vaadin.v7.event.DataBoundTransferable;

uitest/src/main/java/com/vaadin/tests/vaadincontext/BootstrapModifyUI.java

@@ -26,7 +26,6 @@ import com.vaadin.server.BootstrapResponse;
 import com.vaadin.server.VaadinRequest;
 import com.vaadin.tests.components.AbstractReindeerTestUI;
 import com.vaadin.ui.Button;
-import com.vaadin.ui.Button.ClickEvent;
 import com.vaadin.ui.UI;
 
 public class BootstrapModifyUI extends AbstractReindeerTestUI {

uitest/src/test/java/com/vaadin/tests/components/grid/GridAriaRowcountTest.java

@@ -23,9 +23,6 @@ import com.vaadin.testbench.elements.ButtonElement;
 import com.vaadin.testbench.elements.GridElement;
 import com.vaadin.tests.tb3.SingleBrowserTest;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertTrue;
-
 /**
  * @author Vaadin Ltd
  */

uitest/src/test/java/com/vaadin/tests/components/radiobuttongroup/RadioButtonGroupTest.java

@@ -20,7 +20,6 @@ import static org.junit.Assert.assertTrue;
 
 import java.util.List;
 
-import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 import org.openqa.selenium.WebElement;