Revert diamond operator changes

18 files changed, 194 insertions, 190 deletions

diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/AbstractField.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/AbstractField.java
index 53591e1d97..59e078e378 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/AbstractField.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/AbstractField.java
@@ -839,7 +839,7 @@ public abstract class AbstractField<T> extends AbstractLegacyComponent
     @Override
     public void addValidator(Validator validator) {
         if (validators == null) {
-            validators = new LinkedList<>();
+            validators = new LinkedList<Validator>();
         }
         validators.add(validator);
         markAsDirty();
@@ -962,7 +962,7 @@ public abstract class AbstractField<T> extends AbstractLegacyComponent
             }
         }
 
-        List<InvalidValueException> validationExceptions = new ArrayList<>();
+        List<InvalidValueException> validationExceptions = new ArrayList<InvalidValueException>();
         if (validators != null) {
             // Gets all the validation errors
             for (Validator v : validators) {
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/AbstractSelect.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/AbstractSelect.java
index 103eebb4e9..0aeef24c68 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/AbstractSelect.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/AbstractSelect.java
@@ -233,17 +233,17 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
     /**
      * Keymapper used to map key values.
      */
-    protected KeyMapper<Object> itemIdMapper = new KeyMapper<>();
+    protected KeyMapper<Object> itemIdMapper = new KeyMapper<Object>();
 
     /**
      * Item icons.
      */
-    private final HashMap<Object, Resource> itemIcons = new HashMap<>();
+    private final HashMap<Object, Resource> itemIcons = new HashMap<Object, Resource>();
 
     /**
      * Item captions.
      */
-    private final HashMap<Object, String> itemCaptions = new HashMap<>();
+    private final HashMap<Object, String> itemCaptions = new HashMap<Object, String>();
 
     /**
      * Item caption mode.
@@ -471,7 +471,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
                 // TODO Optimize by adding repaintNotNeeded when applicable
 
                 // Converts the key-array to id-set
-                final LinkedList<Object> acceptedSelections = new LinkedList<>();
+                final LinkedList<Object> acceptedSelections = new LinkedList<Object>();
                 for (int i = 0; i < clientSideSelectedKeys.length; i++) {
                     final Object id = itemIdMapper
                             .get(clientSideSelectedKeys[i]);
@@ -503,9 +503,9 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
                     @SuppressWarnings("unchecked")
                     Set<Object> newsel = (Set<Object>) getValue();
                     if (newsel == null) {
-                        newsel = new LinkedHashSet<>();
+                        newsel = new LinkedHashSet<Object>();
                     } else {
-                        newsel = new LinkedHashSet<>(newsel);
+                        newsel = new LinkedHashSet<Object>(newsel);
                     }
                     newsel.removeAll(visibleNotSelected);
                     newsel.addAll(acceptedSelections);
@@ -657,14 +657,14 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
 
             // If the return value is not a set
             if (retValue == null) {
-                return new HashSet<>();
+                return new HashSet<Object>();
             }
             if (retValue instanceof Set) {
                 return Collections.unmodifiableSet((Set<?>) retValue);
             } else if (retValue instanceof Collection) {
                 return new HashSet<Object>((Collection<?>) retValue);
             } else {
-                final Set<Object> s = new HashSet<>();
+                final Set<Object> s = new HashSet<Object>();
                 if (items.containsId(retValue)) {
                     s.add(retValue);
                 }
@@ -722,7 +722,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
             ConversionException, InvalidValueException {
         if (isMultiSelect()) {
             if (newFieldValue == null) {
-                super.setValue(new LinkedHashSet<>(), repaintIsNotNeeded,
+                super.setValue(new LinkedHashSet<Object>(), repaintIsNotNeeded,
                         ignoreReadOnly);
             } else if (Collection.class
                     .isAssignableFrom(newFieldValue.getClass())) {
@@ -974,7 +974,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
 
         if (isMultiSelect()) {
             Collection<Object> valueAsCollection = (Collection<Object>) value;
-            List<Object> newSelection = new ArrayList<>(
+            List<Object> newSelection = new ArrayList<Object>(
                     valueAsCollection.size());
             for (Object subValue : valueAsCollection) {
                 if (containsId(subValue)) {
@@ -1125,7 +1125,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
 
             // Convert the value type
             if (multiSelect) {
-                final Set<Object> s = new HashSet<>();
+                final Set<Object> s = new HashSet<Object>();
                 if (oldValue != null) {
                     s.add(oldValue);
                 }
@@ -1530,7 +1530,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
             setValue(itemId);
         } else if (!isSelected(itemId) && itemId != null
                 && items.containsId(itemId)) {
-            final Set<Object> s = new HashSet<>((Set<?>) getValue());
+            final Set<Object> s = new HashSet<Object>((Set<?>) getValue());
             s.add(itemId);
             setValue(s);
         }
@@ -1548,7 +1548,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
     public void unselect(Object itemId) {
         if (isSelected(itemId)) {
             if (isMultiSelect()) {
-                final Set<Object> s = new HashSet<>((Set<?>) getValue());
+                final Set<Object> s = new HashSet<Object>((Set<?>) getValue());
                 s.remove(itemId);
                 setValue(s);
             } else {
@@ -1577,7 +1577,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
     public void addPropertySetChangeListener(
             Container.PropertySetChangeListener listener) {
         if (propertySetEventListeners == null) {
-            propertySetEventListeners = new LinkedHashSet<>();
+            propertySetEventListeners = new LinkedHashSet<PropertySetChangeListener>();
         }
         propertySetEventListeners.add(listener);
     }
@@ -1627,7 +1627,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
     public void addItemSetChangeListener(
             Container.ItemSetChangeListener listener) {
         if (itemSetEventListeners == null) {
-            itemSetEventListeners = new LinkedHashSet<>();
+            itemSetEventListeners = new LinkedHashSet<ItemSetChangeListener>();
         }
         itemSetEventListeners.add(listener);
     }
@@ -1914,7 +1914,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
 
         // TODO clean this up - type is either Item.PropertySetChangeNotifier or
         // Property.ValueChangeNotifier
-        HashSet<Object> captionChangeNotifiers = new HashSet<>();
+        HashSet<Object> captionChangeNotifiers = new HashSet<Object>();
 
         public void addNotifierForItem(Object itemId) {
             switch (getItemCaptionMode()) {
@@ -2038,7 +2038,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
      */
     private static abstract class AbstractItemSetCriterion
             extends ClientSideCriterion {
-        protected final Collection<Object> itemIds = new HashSet<>();
+        protected final Collection<Object> itemIds = new HashSet<Object>();
         protected AbstractSelect select;
 
         public AbstractItemSetCriterion(AbstractSelect select,
@@ -2213,7 +2213,7 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
     }
 
     protected void readItems(Element design, DesignContext context) {
-        Set<String> selected = new HashSet<>();
+        Set<String> selected = new HashSet<String>();
         for (Element child : design.children()) {
             readItem(child, selected, context);
         }
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/Calendar.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/Calendar.java
index 73b147533c..6e5c1df7f8 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/Calendar.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/Calendar.java
@@ -303,7 +303,7 @@ public class Calendar extends AbstractLegacyComponent
     public Calendar(String caption, CalendarEventProvider eventProvider) {
         registerRpc(rpc);
         setCaption(caption);
-        handlers = new HashMap<>();
+        handlers = new HashMap<String, EventListener>();
         setDefaultHandlers();
         currentCalendar.setTime(new Date());
         setEventProvider(eventProvider);
@@ -467,7 +467,7 @@ public class Calendar extends AbstractLegacyComponent
         events = getEventProvider().getEvents(firstDateToShow, lastDateToShow);
         cacheMinMaxTimeOfDay(events);
 
-        List<CalendarState.Event> calendarStateEvents = new ArrayList<>();
+        List<CalendarState.Event> calendarStateEvents = new ArrayList<CalendarState.Event>();
         if (events != null) {
             for (int i = 0; i < events.size(); i++) {
                 CalendarEvent e = events.get(i);
@@ -617,9 +617,9 @@ public class Calendar extends AbstractLegacyComponent
         DateFormat weeklyCaptionFormatter = getWeeklyCaptionFormatter();
         weeklyCaptionFormatter.setTimeZone(currentCalendar.getTimeZone());
 
-        Map<CalendarDateRange, Set<Action>> actionMap = new HashMap<>();
+        Map<CalendarDateRange, Set<Action>> actionMap = new HashMap<CalendarDateRange, Set<Action>>();
 
-        List<CalendarState.Day> days = new ArrayList<>();
+        List<CalendarState.Day> days = new ArrayList<CalendarState.Day>();
 
         // Send all dates to client from server. This
         // approach was taken because gwt doesn't
@@ -706,7 +706,7 @@ public class Calendar extends AbstractLegacyComponent
                     getTimeZone());
             Action[] actions = actionHandler.getActions(range, this);
             if (actions != null) {
-                Set<Action> actionSet = new LinkedHashSet<>(
+                Set<Action> actionSet = new LinkedHashSet<Action>(
                         Arrays.asList(actions));
                 actionMap.put(range, actionSet);
             }
@@ -719,7 +719,8 @@ public class Calendar extends AbstractLegacyComponent
                 getTimeZone());
         Action[] actions = actionHandler.getActions(range, this);
         if (actions != null) {
-            Set<Action> actionSet = new LinkedHashSet<>(Arrays.asList(actions));
+            Set<Action> actionSet = new LinkedHashSet<Action>(
+                    Arrays.asList(actions));
             actionMap.put(range, actionSet);
         }
     }
@@ -730,7 +731,7 @@ public class Calendar extends AbstractLegacyComponent
             return null;
         }
 
-        List<CalendarState.Action> calendarActions = new ArrayList<>();
+        List<CalendarState.Action> calendarActions = new ArrayList<CalendarState.Action>();
 
         SimpleDateFormat formatter = new SimpleDateFormat(
                 DateConstants.ACTION_DATE_FORMAT_PATTERN);
@@ -1519,7 +1520,7 @@ public class Calendar extends AbstractLegacyComponent
     @Override
     public TargetDetails translateDropTargetDetails(
             Map<String, Object> clientVariables) {
-        Map<String, Object> serverVariables = new HashMap<>();
+        Map<String, Object> serverVariables = new HashMap<String, Object>();
 
         if (clientVariables.containsKey("dropSlotIndex")) {
             int slotIndex = (Integer) clientVariables.get("dropSlotIndex");
@@ -1704,8 +1705,8 @@ public class Calendar extends AbstractLegacyComponent
     public void addActionHandler(Handler actionHandler) {
         if (actionHandler != null) {
             if (actionHandlers == null) {
-                actionHandlers = new LinkedList<>();
-                actionMapper = new KeyMapper<>();
+                actionHandlers = new LinkedList<Handler>();
+                actionMapper = new KeyMapper<Action>();
             }
             if (!actionHandlers.contains(actionHandler)) {
                 actionHandlers.add(actionHandler);
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/ComboBox.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/ComboBox.java
index f6a9d32d6b..8a9db41624 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/ComboBox.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/ComboBox.java
@@ -672,7 +672,7 @@ public class ComboBox extends AbstractSelect
     protected List<?> getFilteredOptions() {
         if (!isFilteringNeeded()) {
             prevfilterstring = null;
-            filteredOptions = new LinkedList<>(getItemIds());
+            filteredOptions = new LinkedList<Object>(getItemIds());
             return filteredOptions;
         }
 
@@ -689,7 +689,7 @@ public class ComboBox extends AbstractSelect
         }
         prevfilterstring = filterstring;
 
-        filteredOptions = new LinkedList<>();
+        filteredOptions = new LinkedList<Object>();
         for (final Iterator<?> it = items.iterator(); it.hasNext();) {
             final Object itemId = it.next();
             String caption = getItemCaption(itemId);
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/DateField.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/DateField.java
index 16b0268354..33ca986fa1 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/DateField.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/DateField.java
@@ -160,7 +160,7 @@ public class DateField extends AbstractField<Date> implements
 
     private TimeZone timeZone = null;
 
-    private static Map<Resolution, String> variableNameForResolution = new HashMap<>();
+    private static Map<Resolution, String> variableNameForResolution = new HashMap<Resolution, String>();
 
     private String dateOutOfRangeMessage = "Date is out of allowed range";
 
@@ -502,7 +502,7 @@ public class DateField extends AbstractField<Date> implements
 
             // Gets the new date in parts
             boolean hasChanges = false;
-            Map<Resolution, Integer> calendarFieldChanges = new HashMap<>();
+            Map<Resolution, Integer> calendarFieldChanges = new HashMap<Resolution, Integer>();
 
             for (Resolution r : Resolution
                     .getResolutionsHigherOrEqualTo(resolution)) {
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/Form.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/Form.java
index e0953a1eb4..c671caea93 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/Form.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/Form.java
@@ -98,7 +98,7 @@ public class Form extends AbstractField<Object>
     /**
      * Ordered list of property ids in this editor.
      */
-    private final LinkedList<Object> propertyIds = new LinkedList<>();
+    private final LinkedList<Object> propertyIds = new LinkedList<Object>();
 
     /**
      * Current buffered source exception.
@@ -113,12 +113,12 @@ public class Form extends AbstractField<Object>
     /**
      * Mapping from propertyName to corresponding field.
      */
-    private final HashMap<Object, Field<?>> fields = new HashMap<>();
+    private final HashMap<Object, Field<?>> fields = new HashMap<Object, Field<?>>();
 
     /**
      * Form may act as an Item, its own properties are stored here.
      */
-    private final HashMap<Object, Property<?>> ownProperties = new HashMap<>();
+    private final HashMap<Object, Property<?>> ownProperties = new HashMap<Object, Property<?>>();
 
     /**
      * Field factory for this form.
@@ -345,7 +345,7 @@ public class Form extends AbstractField<Object>
                 }
             } catch (final Buffered.SourceException e) {
                 if (problems == null) {
-                    problems = new LinkedList<>();
+                    problems = new LinkedList<SourceException>();
                 }
                 problems.add(e);
             }
@@ -389,7 +389,7 @@ public class Form extends AbstractField<Object>
                 fields.get(i.next()).discard();
             } catch (final Buffered.SourceException e) {
                 if (problems == null) {
-                    problems = new LinkedList<>();
+                    problems = new LinkedList<SourceException>();
                 }
                 problems.add(e);
             }
@@ -1105,7 +1105,7 @@ public class Form extends AbstractField<Object>
         if (data instanceof Item) {
             item = (Item) data;
         } else if (data != null) {
-            item = new BeanItem<>(data);
+            item = new BeanItem<Object>(data);
         }
 
         // Sets the datasource to form
@@ -1149,7 +1149,7 @@ public class Form extends AbstractField<Object>
      *            the visibleProperties to set.
      */
     public void setVisibleItemProperties(Object... visibleProperties) {
-        LinkedList<Object> v = new LinkedList<>();
+        LinkedList<Object> v = new LinkedList<Object>();
         for (int i = 0; i < visibleProperties.length; i++) {
             v.add(visibleProperties[i]);
         }
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/Grid.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/Grid.java
index 4b661d577c..207132f364 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/Grid.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/Grid.java
@@ -341,19 +341,19 @@ public class Grid extends AbstractComponent
          * client. Details components get destroyed once they scroll out of
          * view.
          */
-        private final Map<Object, Component> itemIdToDetailsComponent = new HashMap<>();
+        private final Map<Object, Component> itemIdToDetailsComponent = new HashMap<Object, Component>();
 
         /**
          * Set of item ids that got <code>null</code> from DetailsGenerator when
          * {@link DetailsGenerator#getDetails(RowReference)} was called.
          */
-        private final Set<Object> emptyDetails = new HashSet<>();
+        private final Set<Object> emptyDetails = new HashSet<Object>();
 
         /**
          * Set of item IDs for all open details rows. Contains even the ones
          * that are not currently visible on the client.
          */
-        private final Set<Object> openDetails = new HashSet<>();
+        private final Set<Object> openDetails = new HashSet<Object>();
 
         public DetailComponentManager(Grid grid) {
             this(grid, DetailsGenerator.NULL);
@@ -438,7 +438,7 @@ public class Grid extends AbstractComponent
          * Recreates all visible details components.
          */
         public void refreshDetails() {
-            Set<Object> visibleItemIds = new HashSet<>(
+            Set<Object> visibleItemIds = new HashSet<Object>(
                     itemIdToDetailsComponent.keySet());
             for (Object itemId : visibleItemIds) {
                 destroyDetails(itemId);
@@ -572,7 +572,7 @@ public class Grid extends AbstractComponent
 
         @Override
         protected void bindFields() {
-            List<Field<?>> fields = new ArrayList<>(getFields());
+            List<Field<?>> fields = new ArrayList<Field<?>>(getFields());
             Item itemDataSource = getItemDataSource();
 
             if (itemDataSource == null) {
@@ -746,7 +746,7 @@ public class Grid extends AbstractComponent
 
         private CommitException cause;
 
-        private Set<Column> errorColumns = new HashSet<>();
+        private Set<Column> errorColumns = new HashSet<Column>();
 
         private String userErrorMessage;
 
@@ -1408,7 +1408,7 @@ public class Grid extends AbstractComponent
     @Deprecated
     public static abstract class AbstractSelectionModel extends
             AbstractGridExtension implements SelectionModel, DataGenerator {
-        protected final LinkedHashSet<Object> selection = new LinkedHashSet<>();
+        protected final LinkedHashSet<Object> selection = new LinkedHashSet<Object>();
 
         @Override
         public boolean isSelected(final Object itemId) {
@@ -1417,7 +1417,7 @@ public class Grid extends AbstractComponent
 
         @Override
         public Collection<Object> getSelectedRows() {
-            return new ArrayList<>(selection);
+            return new ArrayList<Object>(selection);
         }
 
         @Override
@@ -1657,7 +1657,7 @@ public class Grid extends AbstractComponent
 
                 @Override
                 public void select(List<String> rowKeys) {
-                    List<Object> items = new ArrayList<>();
+                    List<Object> items = new ArrayList<Object>();
                     for (String rowKey : rowKeys) {
                         items.add(getItemId(rowKey));
                     }
@@ -1666,7 +1666,7 @@ public class Grid extends AbstractComponent
 
                 @Override
                 public void deselect(List<String> rowKeys) {
-                    List<Object> items = new ArrayList<>();
+                    List<Object> items = new ArrayList<Object>();
                     for (String rowKey : rowKeys) {
                         items.add(getItemId(rowKey));
                     }
@@ -1720,7 +1720,8 @@ public class Grid extends AbstractComponent
             final boolean selectionWillChange = !selection.containsAll(itemIds)
                     && selection.size() < selectionLimit;
             if (selectionWillChange) {
-                final HashSet<Object> oldSelection = new HashSet<>(selection);
+                final HashSet<Object> oldSelection = new HashSet<Object>(
+                        selection);
                 if (selection.size() + itemIds.size() >= selectionLimit) {
                     // Add one at a time if there's a risk of overflow
                     Iterator<?> iterator = itemIds.iterator();
@@ -1807,7 +1808,8 @@ public class Grid extends AbstractComponent
             final boolean hasCommonElements = !Collections.disjoint(itemIds,
                     selection);
             if (hasCommonElements) {
-                final HashSet<Object> oldSelection = new HashSet<>(selection);
+                final HashSet<Object> oldSelection = new HashSet<Object>(
+                        selection);
                 selection.removeAll(itemIds);
                 fireSelectionEvent(oldSelection, selection);
             }
@@ -1890,7 +1892,7 @@ public class Grid extends AbstractComponent
             checkItemIdsExist(itemIds);
 
             boolean changed = false;
-            Set<Object> selectedRows = new HashSet<>(itemIds);
+            Set<Object> selectedRows = new HashSet<Object>(itemIds);
             final Collection<Object> oldSelection = getSelectedRows();
             Set<Object> added = getDifference(selectedRows, selection);
             if (!added.isEmpty()) {
@@ -1931,7 +1933,7 @@ public class Grid extends AbstractComponent
          */
         private static Set<Object> getDifference(Set<Object> set1,
                 Set<Object> set2) {
-            Set<Object> diff = new HashSet<>(set1);
+            Set<Object> diff = new HashSet<Object>(set1);
             diff.removeAll(set2);
             return diff;
         }
@@ -2311,8 +2313,8 @@ public class Grid extends AbstractComponent
 
             private RowState rowState = new RowState();
             protected StaticSection<?> section;
-            private Map<Object, CELLTYPE> cells = new LinkedHashMap<>();
-            private Map<Set<CELLTYPE>, CELLTYPE> cellGroups = new HashMap<>();
+            private Map<Object, CELLTYPE> cells = new LinkedHashMap<Object, CELLTYPE>();
+            private Map<Set<CELLTYPE>, CELLTYPE> cellGroups = new HashMap<Set<CELLTYPE>, CELLTYPE>();
 
             protected StaticRow(StaticSection<?> section) {
                 this.section = section;
@@ -2397,7 +2399,7 @@ public class Grid extends AbstractComponent
             public CELLTYPE join(Object... propertyIds) {
                 assert propertyIds.length > 1 : "You need to merge at least 2 properties";
 
-                Set<CELLTYPE> cells = new HashSet<>();
+                Set<CELLTYPE> cells = new HashSet<CELLTYPE>();
                 for (int i = 0; i < propertyIds.length; ++i) {
                     cells.add(getCell(propertyIds[i]));
                 }
@@ -2415,7 +2417,7 @@ public class Grid extends AbstractComponent
             public CELLTYPE join(CELLTYPE... cells) {
                 assert cells.length > 1 : "You need to merge at least 2 cells";
 
-                return join(new HashSet<>(Arrays.asList(cells)));
+                return join(new HashSet<CELLTYPE>(Arrays.asList(cells)));
             }
 
             protected CELLTYPE join(Set<CELLTYPE> cells) {
@@ -2432,7 +2434,7 @@ public class Grid extends AbstractComponent
                 // Create new cell data for the group
                 CELLTYPE newCell = createCell();
 
-                Set<String> columnGroup = new HashSet<>();
+                Set<String> columnGroup = new HashSet<String>();
                 for (CELLTYPE cell : cells) {
                     columnGroup.add(cell.getColumnId());
                 }
@@ -2481,7 +2483,7 @@ public class Grid extends AbstractComponent
              */
             protected void writeDesign(Element trElement,
                     DesignContext designContext) {
-                Set<CELLTYPE> visited = new HashSet<>();
+                Set<CELLTYPE> visited = new HashSet<CELLTYPE>();
                 for (Grid.Column column : section.grid.getColumns()) {
                     CELLTYPE cell = getCell(column.getPropertyId());
                     if (visited.contains(cell)) {
@@ -2533,7 +2535,7 @@ public class Grid extends AbstractComponent
                     int colspan = DesignAttributeHandler.readAttribute(
                             "colspan", element.attributes(), 1, int.class);
 
-                    Set<CELLTYPE> cells = new HashSet<>();
+                    Set<CELLTYPE> cells = new HashSet<CELLTYPE>();
                     for (int c = 0; c < colspan; ++c) {
                         cells.add(getCell(section.grid.getColumns()
                                 .get(columnIndex + c).getPropertyId()));
@@ -2774,7 +2776,7 @@ public class Grid extends AbstractComponent
         }
 
         protected Grid grid;
-        protected List<ROWTYPE> rows = new ArrayList<>();
+        protected List<ROWTYPE> rows = new ArrayList<ROWTYPE>();
 
         /**
          * Sets the visibility of the whole section.
@@ -4517,17 +4519,17 @@ public class Grid extends AbstractComponent
     /**
      * Property id to column instance mapping
      */
-    private final Map<Object, Column> columns = new HashMap<>();
+    private final Map<Object, Column> columns = new HashMap<Object, Column>();
 
     /**
      * Key generator for column server-to-client communication
      */
-    private final KeyMapper<Object> columnKeys = new KeyMapper<>();
+    private final KeyMapper<Object> columnKeys = new KeyMapper<Object>();
 
     /**
      * The current sort order
      */
-    private final List<SortOrder> sortOrder = new ArrayList<>();
+    private final List<SortOrder> sortOrder = new ArrayList<SortOrder>();
 
     /**
      * Property listener for listening to changes in data source properties.
@@ -4540,7 +4542,7 @@ public class Grid extends AbstractComponent
                     event.getContainer().getContainerPropertyIds());
 
             // Find columns that need to be removed.
-            List<Column> removedColumns = new LinkedList<>();
+            List<Column> removedColumns = new LinkedList<Column>();
             for (Object propertyId : columns.keySet()) {
                 if (!properties.contains(propertyId)) {
                     removedColumns.add(getColumn(propertyId));
@@ -4556,7 +4558,7 @@ public class Grid extends AbstractComponent
             datasourceExtension.columnsRemoved(removedColumns);
 
             // Add new columns
-            List<Column> addedColumns = new LinkedList<>();
+            List<Column> addedColumns = new LinkedList<Column>();
             for (Object propertyId : properties) {
                 if (!columns.containsKey(propertyId)) {
                     addedColumns.add(appendColumn(propertyId));
@@ -4621,7 +4623,7 @@ public class Grid extends AbstractComponent
      * Poperty ID to Field mapping that stores editor fields set by
      * {@link #setEditorField(Object, Field)}.
      */
-    private Map<Object, Field<?>> editorFields = new HashMap<>();
+    private Map<Object, Field<?>> editorFields = new HashMap<Object, Field<?>>();
 
     private CellStyleGenerator cellStyleGenerator;
     private RowStyleGenerator rowStyleGenerator;
@@ -4643,7 +4645,7 @@ public class Grid extends AbstractComponent
 
     private DetailComponentManager detailComponentManager = null;
 
-    private Set<Component> extensionComponents = new HashSet<>();
+    private Set<Component> extensionComponents = new HashSet<Component>();
 
     private static final Method SELECTION_CHANGE_METHOD = ReflectTools
             .findMethod(SelectionListener.class, "select",
@@ -4726,7 +4728,8 @@ public class Grid extends AbstractComponent
                     boolean userOriginated) {
                 assert columnIds.length == directions.length;
 
-                List<SortOrder> order = new ArrayList<>(columnIds.length);
+                List<SortOrder> order = new ArrayList<SortOrder>(
+                        columnIds.length);
                 for (int i = 0; i < columnIds.length; i++) {
                     Object propertyId = getPropertyIdByColumnId(columnIds[i]);
                     order.add(new SortOrder(propertyId, directions[i]));
@@ -4922,7 +4925,7 @@ public class Grid extends AbstractComponent
 
                         errorMessage = event.getUserErrorMessage();
 
-                        errorColumnIds = new ArrayList<>();
+                        errorColumnIds = new ArrayList<String>();
                         for (Column column : event.getErrorColumns()) {
                             errorColumnIds.add(column.state.id);
                         }
@@ -5147,7 +5150,7 @@ public class Grid extends AbstractComponent
      * @return unmodifiable copy of current columns in visual order
      */
     public List<Column> getColumns() {
-        List<Column> columns = new ArrayList<>();
+        List<Column> columns = new ArrayList<Column>();
         for (String columnId : getState(false).columnOrder) {
             columns.add(getColumnByColumnId(columnId));
         }
@@ -5190,7 +5193,7 @@ public class Grid extends AbstractComponent
 
         // Inform the data provider of this new column.
         Column column = getColumn(propertyId);
-        List<Column> addedColumns = new ArrayList<>();
+        List<Column> addedColumns = new ArrayList<Column>();
         addedColumns.add(column);
         datasourceExtension.columnsAdded(addedColumns);
 
@@ -5255,8 +5258,8 @@ public class Grid extends AbstractComponent
      * Removes all columns from this Grid.
      */
     public void removeAllColumns() {
-        List<Column> removed = new ArrayList<>(columns.values());
-        Set<Object> properties = new HashSet<>(columns.keySet());
+        List<Column> removed = new ArrayList<Column>(columns.values());
+        Set<Object> properties = new HashSet<Object>(columns.keySet());
         for (Object propertyId : properties) {
             removeColumn(propertyId);
         }
@@ -5402,7 +5405,7 @@ public class Grid extends AbstractComponent
                     "There is no column for given property id " + propertyId);
         }
 
-        List<Column> removed = new ArrayList<>();
+        List<Column> removed = new ArrayList<Column>();
         removed.add(getColumn(propertyId));
         internalRemoveColumn(propertyId);
         datasourceExtension.columnsRemoved(removed);
@@ -5435,12 +5438,12 @@ public class Grid extends AbstractComponent
                     "The propertyIds array contains duplicates: "
                             + SharedUtil.getDuplicates(propertyIds));
         }
-        Set<?> removePids = new HashSet<>(columns.keySet());
+        Set<?> removePids = new HashSet<Object>(columns.keySet());
         removePids.removeAll(Arrays.asList(propertyIds));
         for (Object removePid : removePids) {
             removeColumn(removePid);
         }
-        Set<?> addPids = new HashSet<>(Arrays.asList(propertyIds));
+        Set<?> addPids = new HashSet<Object>(Arrays.asList(propertyIds));
         addPids.removeAll(columns.keySet());
         for (Object propertyId : addPids) {
             addColumn(propertyId);
@@ -5462,7 +5465,7 @@ public class Grid extends AbstractComponent
                     "The propertyIds array contains duplicates: "
                             + SharedUtil.getDuplicates(propertyIds));
         }
-        List<String> columnOrder = new ArrayList<>();
+        List<String> columnOrder = new ArrayList<String>();
         for (Object propertyId : propertyIds) {
             if (columns.containsKey(propertyId)) {
                 columnOrder.add(columnKeys.key(propertyId));
@@ -6238,7 +6241,7 @@ public class Grid extends AbstractComponent
                 getState().sortColumns = new String[] {};
                 getState(false).sortDirs = new SortDirection[] {};
             }
-            fireEvent(new SortEvent(this, new ArrayList<>(sortOrder),
+            fireEvent(new SortEvent(this, new ArrayList<SortOrder>(sortOrder),
                     userOriginated));
         } else {
             throw new IllegalStateException(
@@ -6579,7 +6582,7 @@ public class Grid extends AbstractComponent
     public Iterator<Component> iterator() {
         // This is a hash set to avoid adding header/footer components inside
         // merged cells multiple times
-        LinkedHashSet<Component> componentList = new LinkedHashSet<>();
+        LinkedHashSet<Component> componentList = new LinkedHashSet<Component>();
 
         Header header = getHeader();
         for (int i = 0; i < header.getRowCount(); ++i) {
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/OptionGroup.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/OptionGroup.java
index 667149d0e9..34090225ff 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/OptionGroup.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/OptionGroup.java
@@ -50,7 +50,7 @@ import com.vaadin.v7.shared.ui.optiongroup.OptionGroupState;
 public class OptionGroup extends AbstractSelect
         implements FieldEvents.BlurNotifier, FieldEvents.FocusNotifier {
 
-    private Set<Object> disabledItemIds = new HashSet<>();
+    private Set<Object> disabledItemIds = new HashSet<Object>();
 
     public OptionGroup() {
         super();
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/Table.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/Table.java
index b8c649eba5..8b6ad8dbfb 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/Table.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/Table.java
@@ -389,57 +389,57 @@ public class Table extends AbstractSelect implements Action.Container,
     /**
      * Keymapper for column ids.
      */
-    private final KeyMapper<Object> columnIdMap = new KeyMapper<>();
+    private final KeyMapper<Object> columnIdMap = new KeyMapper<Object>();
 
     /**
      * Holds visible column propertyIds - in order.
      */
-    private LinkedList<Object> visibleColumns = new LinkedList<>();
+    private LinkedList<Object> visibleColumns = new LinkedList<Object>();
 
     /**
      * Holds noncollapsible columns.
      */
-    private HashSet<Object> noncollapsibleColumns = new HashSet<>();
+    private HashSet<Object> noncollapsibleColumns = new HashSet<Object>();
 
     /**
      * Holds propertyIds of currently collapsed columns.
      */
-    private final HashSet<Object> collapsedColumns = new HashSet<>();
+    private final HashSet<Object> collapsedColumns = new HashSet<Object>();
 
     /**
      * Holds headers for visible columns (by propertyId).
      */
-    private final HashMap<Object, String> columnHeaders = new HashMap<>();
+    private final HashMap<Object, String> columnHeaders = new HashMap<Object, String>();
 
     /**
      * Holds footers for visible columns (by propertyId).
      */
-    private final HashMap<Object, String> columnFooters = new HashMap<>();
+    private final HashMap<Object, String> columnFooters = new HashMap<Object, String>();
 
     /**
      * Holds icons for visible columns (by propertyId).
      */
-    private final HashMap<Object, Resource> columnIcons = new HashMap<>();
+    private final HashMap<Object, Resource> columnIcons = new HashMap<Object, Resource>();
 
     /**
      * Holds alignments for visible columns (by propertyId).
      */
-    private HashMap<Object, Align> columnAlignments = new HashMap<>();
+    private HashMap<Object, Align> columnAlignments = new HashMap<Object, Align>();
 
     /**
      * Holds column widths in pixels for visible columns (by propertyId).
      */
-    private final HashMap<Object, Integer> columnWidths = new HashMap<>();
+    private final HashMap<Object, Integer> columnWidths = new HashMap<Object, Integer>();
 
     /**
      * Holds column expand rations for visible columns (by propertyId).
      */
-    private final HashMap<Object, Float> columnExpandRatios = new HashMap<>();
+    private final HashMap<Object, Float> columnExpandRatios = new HashMap<Object, Float>();
 
     /**
      * Holds column generators
      */
-    private final HashMap<Object, ColumnGenerator> columnGenerators = new LinkedHashMap<>();
+    private final HashMap<Object, ColumnGenerator> columnGenerators = new LinkedHashMap<Object, ColumnGenerator>();
 
     /**
      * Holds value of property pageLength. 0 disables paging.
@@ -592,11 +592,11 @@ public class Table extends AbstractSelect implements Action.Container,
 
     private RowGenerator rowGenerator = null;
 
-    private final Map<Field<?>, Property<?>> associatedProperties = new HashMap<>();
+    private final Map<Field<?>, Property<?>> associatedProperties = new HashMap<Field<?>, Property<?>>();
 
     private boolean painted = false;
 
-    private HashMap<Object, Converter<String, Object>> propertyValueConverters = new HashMap<>();
+    private HashMap<Object, Converter<String, Object>> propertyValueConverters = new HashMap<Object, Converter<String, Object>>();
 
     /**
      * Set to true if the client-side should be informed that the key mapper has
@@ -605,7 +605,7 @@ public class Table extends AbstractSelect implements Action.Container,
      */
     private boolean keyMapperReset;
 
-    private List<Throwable> exceptionsDuringCachePopulation = new ArrayList<>();
+    private List<Throwable> exceptionsDuringCachePopulation = new ArrayList<Throwable>();
 
     private boolean isBeingPainted;
 
@@ -689,7 +689,7 @@ public class Table extends AbstractSelect implements Action.Container,
                     "Can not set visible columns to null value");
         }
 
-        final LinkedList<Object> newVC = new LinkedList<>();
+        final LinkedList<Object> newVC = new LinkedList<Object>();
 
         // Checks that the new visible columns contains no nulls, properties
         // exist and that there are no duplicates before adding them to newVC.
@@ -894,7 +894,7 @@ public class Table extends AbstractSelect implements Action.Container,
         }
 
         // Resets the alignments
-        final HashMap<Object, Align> newCA = new HashMap<>();
+        final HashMap<Object, Align> newCA = new HashMap<Object, Align>();
         int i = 0;
         for (final Iterator<Object> it = visibleColumns.iterator(); it.hasNext()
                 && i < columnAlignments.length; i++) {
@@ -1471,7 +1471,7 @@ public class Table extends AbstractSelect implements Action.Container,
         if (columnOrder == null || !isColumnReorderingAllowed()) {
             return;
         }
-        final LinkedList<Object> newOrder = new LinkedList<>();
+        final LinkedList<Object> newOrder = new LinkedList<Object>();
         for (int i = 0; i < columnOrder.length; i++) {
             if (columnOrder[i] != null
                     && visibleColumns.contains(columnOrder[i])) {
@@ -2202,8 +2202,8 @@ public class Table extends AbstractSelect implements Action.Container,
         if (replaceListeners) {
             // initialize the listener collections, this should only be done if
             // the entire cache is refreshed (through refreshRenderedCells)
-            listenedProperties = new HashSet<>();
-            visibleComponents = new HashSet<>();
+            listenedProperties = new HashSet<Property<?>>();
+            visibleComponents = new HashSet<Component>();
         }
 
         Object[][] cells = new Object[cols + CELL_FIRSTCOL][rows];
@@ -2644,7 +2644,7 @@ public class Table extends AbstractSelect implements Action.Container,
             throws UnsupportedOperationException {
 
         // remove generated columns from the list of columns being assigned
-        final LinkedList<Object> availableCols = new LinkedList<>();
+        final LinkedList<Object> availableCols = new LinkedList<Object>();
         for (Iterator<Object> it = visibleColumns.iterator(); it.hasNext();) {
             Object id = it.next();
             if (!columnGenerators.containsKey(id)) {
@@ -2735,7 +2735,7 @@ public class Table extends AbstractSelect implements Action.Container,
         } else {
             generated = Collections.emptyList();
         }
-        List<Object> visibleIds = new ArrayList<>();
+        List<Object> visibleIds = new ArrayList<Object>();
         if (generated.isEmpty()) {
             visibleIds.addAll(newDataSource.getContainerPropertyIds());
         } else {
@@ -2777,7 +2777,7 @@ public class Table extends AbstractSelect implements Action.Container,
             newDataSource = new IndexedContainer();
         }
         if (visibleIds == null) {
-            visibleIds = new ArrayList<>();
+            visibleIds = new ArrayList<Object>();
         }
 
         // Retain propertyValueConverters if their corresponding ids are
@@ -2786,7 +2786,7 @@ public class Table extends AbstractSelect implements Action.Container,
         if (propertyValueConverters != null) {
             Collection<?> newPropertyIds = newDataSource
                     .getContainerPropertyIds();
-            LinkedList<Object> retainableValueConverters = new LinkedList<>();
+            LinkedList<Object> retainableValueConverters = new LinkedList<Object>();
             for (Object propertyId : newPropertyIds) {
                 Converter<String, ?> converter = getConverter(propertyId);
                 if (converter != null) {
@@ -2819,7 +2819,7 @@ public class Table extends AbstractSelect implements Action.Container,
         }
 
         // don't add the same id twice
-        Collection<Object> col = new LinkedList<>();
+        Collection<Object> col = new LinkedList<Object>();
         for (Iterator<?> it = visibleIds.iterator(); it.hasNext();) {
             Object id = it.next();
             if (!col.contains(id)) {
@@ -2860,7 +2860,7 @@ public class Table extends AbstractSelect implements Action.Container,
      */
     private LinkedHashSet<Object> getItemIdsInRange(Object itemId,
             final int length) {
-        LinkedHashSet<Object> ids = new LinkedHashSet<>();
+        LinkedHashSet<Object> ids = new LinkedHashSet<Object>();
         for (int i = 0; i < length; i++) {
             assert itemId != null; // should not be null unless client-server
                                    // are out of sync
@@ -2883,7 +2883,7 @@ public class Table extends AbstractSelect implements Action.Container,
         Set<Object> renderedButNotSelectedItemIds = getCurrentlyRenderedItemIds();
 
         @SuppressWarnings("unchecked")
-        HashSet<Object> newValue = new LinkedHashSet<>(
+        HashSet<Object> newValue = new LinkedHashSet<Object>(
                 (Collection<Object>) getValue());
 
         if (variables.containsKey("clearSelections")) {
@@ -2938,7 +2938,7 @@ public class Table extends AbstractSelect implements Action.Container,
     }
 
     private Set<Object> getCurrentlyRenderedItemIds() {
-        HashSet<Object> ids = new HashSet<>();
+        HashSet<Object> ids = new HashSet<Object>();
         if (pageBuffer != null) {
             for (int i = 0; i < pageBuffer[CELL_ITEMID].length; i++) {
                 ids.add(pageBuffer[CELL_ITEMID][i]);
@@ -2971,7 +2971,7 @@ public class Table extends AbstractSelect implements Action.Container,
         if (!isSelectable() && variables.containsKey("selected")) {
             // Not-selectable is a special case, AbstractSelect does not support
             // TODO could be optimized.
-            variables = new HashMap<>(variables);
+            variables = new HashMap<String, Object>(variables);
             variables.remove("selected");
         }
 
@@ -2983,7 +2983,7 @@ public class Table extends AbstractSelect implements Action.Container,
                 && variables.containsKey("selected")
                 && multiSelectMode == MultiSelectMode.DEFAULT) {
             handleSelectedItems(variables);
-            variables = new HashMap<>(variables);
+            variables = new HashMap<String, Object>(variables);
             variables.remove("selected");
         }
 
@@ -3082,7 +3082,7 @@ public class Table extends AbstractSelect implements Action.Container,
                 try {
                     final Object[] ids = (Object[]) variables
                             .get("collapsedcolumns");
-                    Set<Object> idSet = new HashSet<>();
+                    Set<Object> idSet = new HashSet<Object>();
                     for (Object id : ids) {
                         idSet.add(columnIdMap.get(id.toString()));
                     }
@@ -3648,7 +3648,7 @@ public class Table extends AbstractSelect implements Action.Container,
     private void paintAvailableColumns(PaintTarget target)
             throws PaintException {
         if (columnCollapsingAllowed) {
-            final HashSet<Object> collapsedCols = new HashSet<>();
+            final HashSet<Object> collapsedCols = new HashSet<Object>();
             for (Object colId : visibleColumns) {
                 if (isColumnCollapsed(colId)) {
                     collapsedCols.add(colId);
@@ -3772,7 +3772,7 @@ public class Table extends AbstractSelect implements Action.Container,
 
     private void paintVisibleColumnOrder(PaintTarget target) {
         // Visible column order
-        final ArrayList<String> visibleColOrder = new ArrayList<>();
+        final ArrayList<String> visibleColOrder = new ArrayList<String>();
         for (Object columnId : visibleColumns) {
             if (!isColumnCollapsed(columnId)) {
                 visibleColOrder.add(columnIdMap.key(columnId));
@@ -3782,9 +3782,9 @@ public class Table extends AbstractSelect implements Action.Container,
     }
 
     private Set<Action> findAndPaintBodyActions(PaintTarget target) {
-        Set<Action> actionSet = new LinkedHashSet<>();
+        Set<Action> actionSet = new LinkedHashSet<Action>();
         if (actionHandlers != null) {
-            final ArrayList<String> keys = new ArrayList<>();
+            final ArrayList<String> keys = new ArrayList<String>();
             for (Handler ah : actionHandlers) {
                 // Getting actions for the null item, which in this case means
                 // the body item
@@ -3846,7 +3846,7 @@ public class Table extends AbstractSelect implements Action.Container,
     }
 
     private String[] findSelectedKeys() {
-        LinkedList<String> selectedKeys = new LinkedList<>();
+        LinkedList<String> selectedKeys = new LinkedList<String>();
         if (isMultiSelect()) {
             HashSet<?> sel = new HashSet<Object>((Set<?>) getValue());
             Collection<?> vids = getVisibleItemIds();
@@ -4002,7 +4002,7 @@ public class Table extends AbstractSelect implements Action.Container,
 
         // Actions
         if (actionHandlers != null) {
-            final ArrayList<String> keys = new ArrayList<>();
+            final ArrayList<String> keys = new ArrayList<String>();
             for (Handler ah : actionHandlers) {
                 final Action[] aa = ah.getActions(itemId, this);
                 if (aa != null) {
@@ -4197,8 +4197,8 @@ public class Table extends AbstractSelect implements Action.Container,
         if (actionHandler != null) {
 
             if (actionHandlers == null) {
-                actionHandlers = new LinkedList<>();
-                actionMapper = new KeyMapper<>();
+                actionHandlers = new LinkedList<Handler>();
+                actionMapper = new KeyMapper<Action>();
             }
 
             if (!actionHandlers.contains(actionHandler)) {
@@ -4534,7 +4534,7 @@ public class Table extends AbstractSelect implements Action.Container,
     @Override
     public Collection<?> getVisibleItemIds() {
 
-        final LinkedList<Object> visible = new LinkedList<>();
+        final LinkedList<Object> visible = new LinkedList<Object>();
 
         final Object[][] cells = getVisibleCells();
         // may be null if the table has not been rendered yet (e.g. not attached
@@ -4616,7 +4616,8 @@ public class Table extends AbstractSelect implements Action.Container,
         Collection<?> containerPropertyIds = getContainerDataSource()
                 .getContainerPropertyIds();
 
-        LinkedList<Object> newVisibleColumns = new LinkedList<>(visibleColumns);
+        LinkedList<Object> newVisibleColumns = new LinkedList<Object>(
+                visibleColumns);
         for (Iterator<Object> iterator = newVisibleColumns.iterator(); iterator
                 .hasNext();) {
             Object id = iterator.next();
@@ -6179,7 +6180,7 @@ public class Table extends AbstractSelect implements Action.Container,
 
         if (colgroup != null) {
             int i = 0;
-            List<Object> pIds = new ArrayList<>();
+            List<Object> pIds = new ArrayList<Object>();
             for (Element col : colgroup.children()) {
                 if (!col.tagName().equals("col")) {
                     throw new DesignException("invalid column");
@@ -6281,7 +6282,7 @@ public class Table extends AbstractSelect implements Action.Container,
             return;
         }
 
-        Set<String> selected = new HashSet<>();
+        Set<String> selected = new HashSet<String>();
         for (Element tr : tbody.children()) {
             readItem(tr, selected, context);
         }
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/Tree.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/Tree.java
index 094dd1d5e4..67da52df51 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/Tree.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/Tree.java
@@ -122,12 +122,12 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
     /**
      * Item icons alt texts.
      */
-    private final HashMap<Object, String> itemIconAlts = new HashMap<>();
+    private final HashMap<Object, String> itemIconAlts = new HashMap<Object, String>();
 
     /**
      * Set of expanded nodes.
      */
-    private HashSet<Object> expanded = new HashSet<>();
+    private HashSet<Object> expanded = new HashSet<Object>();
 
     /**
      * List of action handlers.
@@ -375,7 +375,7 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
         boolean result = true;
 
         // Initial stack
-        final Stack<Object> todo = new Stack<>();
+        final Stack<Object> todo = new Stack<Object>();
         todo.add(startItemId);
 
         // Expands recursively
@@ -428,7 +428,7 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
         boolean result = true;
 
         // Initial stack
-        final Stack<Object> todo = new Stack<>();
+        final Stack<Object> todo = new Stack<Object>();
         todo.add(startItemId);
 
         // Collapse recursively
@@ -522,7 +522,7 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
         if (!isSelectable() && variables.containsKey("selected")) {
             // Not-selectable is a special case, AbstractSelect does not support
             // TODO could be optimized.
-            variables = new HashMap<>(variables);
+            variables = new HashMap<String, Object>(variables);
             variables.remove("selected");
         }
 
@@ -561,7 +561,7 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
         if (variables.containsKey("selected") && isMultiSelect()
                 && multiSelectMode == MultiSelectMode.DEFAULT) {
             handleSelectedItems(variables);
-            variables = new HashMap<>(variables);
+            variables = new HashMap<String, Object>(variables);
             variables.remove("selected");
         }
 
@@ -595,7 +595,7 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
         final String[] ka = (String[]) variables.get("selected");
 
         // Converts the key-array to id-set
-        final LinkedList<Object> s = new LinkedList<>();
+        final LinkedList<Object> s = new LinkedList<Object>();
         for (int i = 0; i < ka.length; i++) {
             final Object id = itemIdMapper.get(ka[i]);
             if (!isNullSelectionAllowed()
@@ -666,15 +666,15 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
         }
 
         // Initialize variables
-        final Set<Action> actionSet = new LinkedHashSet<>();
+        final Set<Action> actionSet = new LinkedHashSet<Action>();
 
         // rendered selectedKeys
-        LinkedList<String> selectedKeys = new LinkedList<>();
+        LinkedList<String> selectedKeys = new LinkedList<String>();
 
-        final LinkedList<String> expandedKeys = new LinkedList<>();
+        final LinkedList<String> expandedKeys = new LinkedList<String>();
 
         // Iterates through hierarchical tree using a stack of iterators
-        final Stack<Iterator<?>> iteratorStack = new Stack<>();
+        final Stack<Iterator<?>> iteratorStack = new Stack<Iterator<?>>();
         Collection<?> ids;
         if (partialUpdate) {
             ids = getChildren(expandedItemId);
@@ -691,7 +691,7 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
          * by right clicking on the Tree body
          */
         if (actionHandlers != null) {
-            final ArrayList<String> keys = new ArrayList<>();
+            final ArrayList<String> keys = new ArrayList<String>();
             for (Handler ah : actionHandlers) {
 
                 // Getting action for the null item, which in this case
@@ -780,7 +780,7 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
 
                 // Actions
                 if (actionHandlers != null) {
-                    final ArrayList<String> keys = new ArrayList<>();
+                    final ArrayList<String> keys = new ArrayList<String>();
                     final Iterator<Action.Handler> ahi = actionHandlers
                             .iterator();
                     while (ahi.hasNext()) {
@@ -1242,8 +1242,8 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
         if (actionHandler != null) {
 
             if (actionHandlers == null) {
-                actionHandlers = new LinkedList<>();
-                actionMapper = new KeyMapper<>();
+                actionHandlers = new LinkedList<Handler>();
+                actionMapper = new KeyMapper<Action>();
             }
 
             if (!actionHandlers.contains(actionHandler)) {
@@ -1291,10 +1291,10 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
     @Override
     public Collection<?> getVisibleItemIds() {
 
-        final LinkedList<Object> visible = new LinkedList<>();
+        final LinkedList<Object> visible = new LinkedList<Object>();
 
         // Iterates trough hierarchical tree using a stack of iterators
-        final Stack<Iterator<?>> iteratorStack = new Stack<>();
+        final Stack<Iterator<?>> iteratorStack = new Stack<Iterator<?>>();
         final Collection<?> ids = rootItemIds();
         if (ids != null) {
             iteratorStack.push(ids.iterator());
@@ -1844,7 +1844,7 @@ public class Tree extends AbstractSelect implements Container.Hierarchical,
     }
 
     private void cleanupExpandedItems() {
-        Set<Object> removedItemIds = new HashSet<>();
+        Set<Object> removedItemIds = new HashSet<Object>();
         for (Object expandedItemId : expanded) {
             if (getItem(expandedItemId) == null) {
                 removedItemIds.add(expandedItemId);
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/TreeTable.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/TreeTable.java
index e2fc9c28bf..8efdbed66c 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/TreeTable.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/TreeTable.java
@@ -199,7 +199,7 @@ public class TreeTable extends Table implements Hierarchical {
      */
     private class HierarchicalStrategy extends AbstractStrategy {
 
-        private final HashSet<Object> openItems = new HashSet<>();
+        private final HashSet<Object> openItems = new HashSet<Object>();
 
         @Override
         public boolean isNodeOpen(Object itemId) {
@@ -286,7 +286,7 @@ public class TreeTable extends Table implements Hierarchical {
          */
         private List<Object> getPreOrder() {
             if (preOrder == null) {
-                preOrder = new ArrayList<>();
+                preOrder = new ArrayList<Object>();
                 Collection<?> rootItemIds = getContainerDataSource()
                         .rootItemIds();
                 for (Object id : rootItemIds) {
@@ -896,7 +896,7 @@ public class TreeTable extends Table implements Hierarchical {
 
     @Override
     protected List<Object> getItemIds(int firstIndex, int rows) {
-        List<Object> itemIds = new ArrayList<>();
+        List<Object> itemIds = new ArrayList<Object>();
         for (int i = firstIndex; i < firstIndex + rows; i++) {
             itemIds.add(getIdByIndex(i));
         }
@@ -910,8 +910,8 @@ public class TreeTable extends Table implements Hierarchical {
             return;
         }
 
-        Set<String> selected = new HashSet<>();
-        Stack<Object> parents = new Stack<>();
+        Set<String> selected = new HashSet<String>();
+        Stack<Object> parents = new Stack<Object>();
         int lastDepth = -1;
 
         for (Element tr : tbody.children()) {
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/Upload.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/Upload.java
index a1f987b55e..cf855b6868 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/Upload.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/Upload.java
@@ -802,7 +802,7 @@ public class Upload extends AbstractLegacyComponent
      */
     public void addProgressListener(ProgressListener listener) {
         if (progressListeners == null) {
-            progressListeners = new LinkedHashSet<>();
+            progressListeners = new LinkedHashSet<ProgressListener>();
         }
         progressListeners.add(listener);
     }
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/ContainerEventProvider.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/ContainerEventProvider.java
index 4f15272eb0..d00439cbb8 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/ContainerEventProvider.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/ContainerEventProvider.java
@@ -37,7 +37,6 @@ import com.vaadin.v7.ui.components.calendar.event.CalendarEditableEventProvider;
 import com.vaadin.v7.ui.components.calendar.event.CalendarEvent;
 import com.vaadin.v7.ui.components.calendar.event.CalendarEvent.EventChangeListener;
 import com.vaadin.v7.ui.components.calendar.event.CalendarEvent.EventChangeNotifier;
-import com.vaadin.v7.ui.components.calendar.event.CalendarEventProvider;
 import com.vaadin.v7.ui.components.calendar.event.CalendarEventProvider.EventSetChangeNotifier;
 
 /**
@@ -85,14 +84,14 @@ public class ContainerEventProvider
     /**
      * Listeners attached to the container
      */
-    private final List<EventSetChangeListener> eventSetChangeListeners = new LinkedList<>();
-    private final List<EventChangeListener> eventChangeListeners = new LinkedList<>();
+    private final List<EventSetChangeListener> eventSetChangeListeners = new LinkedList<EventSetChangeListener>();
+    private final List<EventChangeListener> eventChangeListeners = new LinkedList<EventChangeListener>();
 
     /**
      * The event cache contains the events previously created by
      * {@link #getEvents(Date, Date)}
      */
-    private final List<CalendarEvent> eventCache = new LinkedList<>();
+    private final List<CalendarEvent> eventCache = new LinkedList<CalendarEvent>();
 
     /**
      * The container used as datasource
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/event/BasicEvent.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/event/BasicEvent.java
index 3f899debd7..114e696058 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/event/BasicEvent.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/event/BasicEvent.java
@@ -38,7 +38,7 @@ public class BasicEvent implements EditableCalendarEvent, EventChangeNotifier {
     private Date end;
     private Date start;
     private String styleName;
-    private transient List<EventChangeListener> listeners = new ArrayList<>();
+    private transient List<EventChangeListener> listeners = new ArrayList<EventChangeListener>();
 
     private boolean isAllDay;
 
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/event/BasicEventProvider.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/event/BasicEventProvider.java
index 2fa32f93e3..99383c165c 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/event/BasicEventProvider.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/calendar/event/BasicEventProvider.java
@@ -46,9 +46,9 @@ import com.vaadin.v7.ui.components.calendar.event.CalendarEventProvider.EventSet
 public class BasicEventProvider implements CalendarEditableEventProvider,
         EventSetChangeNotifier, CalendarEvent.EventChangeListener {
 
-    protected List<CalendarEvent> eventList = new ArrayList<>();
+    protected List<CalendarEvent> eventList = new ArrayList<CalendarEvent>();
 
-    private List<EventSetChangeListener> listeners = new ArrayList<>();
+    private List<EventSetChangeListener> listeners = new ArrayList<EventSetChangeListener>();
 
     /*
      * (non-Javadoc)
@@ -59,7 +59,7 @@ public class BasicEventProvider implements CalendarEditableEventProvider,
      */
     @Override
     public List<CalendarEvent> getEvents(Date startDate, Date endDate) {
-        ArrayList<CalendarEvent> activeEvents = new ArrayList<>();
+        ArrayList<CalendarEvent> activeEvents = new ArrayList<CalendarEvent>();
 
         for (CalendarEvent ev : eventList) {
             long from = startDate.getTime();
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerGrid.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerGrid.java
index 2278bde171..5ba0f2893e 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerGrid.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerGrid.java
@@ -1,12 +1,12 @@
 /*
  * Copyright 2000-2016 Vaadin Ltd.
- * 
+ *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
  * the License at
- * 
+ *
  * http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
@@ -27,12 +27,12 @@ import com.vaadin.v7.shared.ui.colorpicker.ColorPickerGridState;
 
 /**
  * A component that represents a color selection grid within a color picker.
- * 
+ *
  * @since 7.0.0
  */
 @Deprecated
-public class ColorPickerGrid extends AbstractComponent implements
-        ColorSelector {
+public class ColorPickerGrid extends AbstractComponent
+        implements ColorSelector {
 
     private static final String STYLENAME = "v-colorpicker-grid";
 
@@ -86,7 +86,7 @@ public class ColorPickerGrid extends AbstractComponent implements
     private Color[][] colorGrid = new Color[1][1];
 
     /** The changed colors. */
-    private final Map<Point, Color> changedColors = new HashMap<>();
+    private final Map<Point, Color> changedColors = new HashMap<Point, Color>();
 
     /**
      * Instantiates a new color picker grid.
@@ -100,7 +100,7 @@ public class ColorPickerGrid extends AbstractComponent implements
 
     /**
      * Instantiates a new color picker grid.
-     * 
+     *
      * @param rows
      *            the rows
      * @param columns
@@ -115,7 +115,7 @@ public class ColorPickerGrid extends AbstractComponent implements
 
     /**
      * Instantiates a new color picker grid.
-     * 
+     *
      * @param colors
      *            the colors
      */
@@ -164,7 +164,7 @@ public class ColorPickerGrid extends AbstractComponent implements
 
     /**
      * Sets the color grid.
-     * 
+     *
      * @param colors
      *            the new color grid
      */
@@ -185,7 +185,7 @@ public class ColorPickerGrid extends AbstractComponent implements
 
     /**
      * Adds a color change listener
-     * 
+     *
      * @param listener
      *            The color change listener
      */
@@ -201,7 +201,7 @@ public class ColorPickerGrid extends AbstractComponent implements
 
     /**
      * Removes a color change listener
-     * 
+     *
      * @param listener
      *            The listener
      */
@@ -220,7 +220,7 @@ public class ColorPickerGrid extends AbstractComponent implements
 
     /**
      * Sets the position.
-     * 
+     *
      * @param x
      *            the x
      * @param y
@@ -235,7 +235,7 @@ public class ColorPickerGrid extends AbstractComponent implements
 
     /**
      * Gets the position.
-     * 
+     *
      * @return the position
      */
     public int[] getPosition() {
@@ -244,7 +244,7 @@ public class ColorPickerGrid extends AbstractComponent implements
 
     /**
      * Notifies the listeners that a color change has occurred
-     * 
+     *
      * @param color
      *            The color which it changed to
      */
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerHistory.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerHistory.java
index 111800b94f..40c0190ac6 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerHistory.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerHistory.java
@@ -1,12 +1,12 @@
 /*
  * Copyright 2000-2016 Vaadin Ltd.
- * 
+ *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
  * the License at
- * 
+ *
  * http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
@@ -28,12 +28,12 @@ import com.vaadin.v7.shared.ui.colorpicker.Color;
 
 /**
  * A component that represents color selection history within a color picker.
- * 
+ *
  * @since 7.0.0
  */
 @Deprecated
-public class ColorPickerHistory extends CustomComponent implements
-        ColorSelector, ColorChangeListener {
+public class ColorPickerHistory extends CustomComponent
+        implements ColorSelector, ColorChangeListener {
 
     private static final String STYLENAME = "v-colorpicker-history";
 
@@ -56,7 +56,7 @@ public class ColorPickerHistory extends CustomComponent implements
     private static final int columns = 15;
 
     /** Temporary color history for when the component is detached. */
-    private ArrayBlockingQueue<Color> tempHistory = new ArrayBlockingQueue<>(
+    private ArrayBlockingQueue<Color> tempHistory = new ArrayBlockingQueue<Color>(
             rows * columns);
 
     /** The grid. */
@@ -83,7 +83,7 @@ public class ColorPickerHistory extends CustomComponent implements
     }
 
     private void createColorHistoryIfNecessary() {
-        List<Color> tempColors = new ArrayList<>(tempHistory);
+        List<Color> tempColors = new ArrayList<Color>(tempHistory);
         if (getSession().getAttribute("colorPickerHistory") == null) {
             getSession().setAttribute("colorPickerHistory",
                     new ArrayBlockingQueue<Color>(rows * columns));
@@ -97,8 +97,8 @@ public class ColorPickerHistory extends CustomComponent implements
     @SuppressWarnings("unchecked")
     private ArrayBlockingQueue<Color> getColorHistory() {
         if (isAttached()) {
-            Object colorHistory = getSession().getAttribute(
-                    "colorPickerHistory");
+            Object colorHistory = getSession()
+                    .getAttribute("colorPickerHistory");
             if (colorHistory instanceof ArrayBlockingQueue<?>) {
                 return (ArrayBlockingQueue<Color>) colorHistory;
             }
@@ -135,7 +135,7 @@ public class ColorPickerHistory extends CustomComponent implements
             }
         }
 
-        List<Color> colorList = new ArrayList<>(colorHistory);
+        List<Color> colorList = new ArrayList<Color>(colorHistory);
 
         // Invert order of colors
         Collections.reverse(colorList);
@@ -168,7 +168,7 @@ public class ColorPickerHistory extends CustomComponent implements
 
     /**
      * Gets the history.
-     * 
+     *
      * @return the history
      */
     public List<Color> getHistory() {
@@ -179,10 +179,10 @@ public class ColorPickerHistory extends CustomComponent implements
 
     /**
      * Checks if the history contains given color.
-     * 
+     *
      * @param c
      *            the color
-     * 
+     *
      * @return true, if successful
      */
     public boolean hasColor(Color c) {
@@ -191,7 +191,7 @@ public class ColorPickerHistory extends CustomComponent implements
 
     /**
      * Adds a color change listener
-     * 
+     *
      * @param listener
      *            The listener
      */
@@ -202,7 +202,7 @@ public class ColorPickerHistory extends CustomComponent implements
 
     /**
      * Removes a color change listener
-     * 
+     *
      * @param listener
      *            The listener
      */
diff --git a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerPopup.java b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerPopup.java
index a6f35fa6f9..ff5334ea83 100644
--- a/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerPopup.java
+++ b/compatibility-server/src/main/java/com/vaadin/v7/ui/components/colorpicker/ColorPickerPopup.java
@@ -133,7 +133,7 @@ public class ColorPickerPopup extends Window
     private ColorPickerSelect colorSelect;
 
     /** The selectors. */
-    private final Set<ColorSelector> selectors = new HashSet<>();
+    private final Set<ColorSelector> selectors = new HashSet<ColorSelector>();
 
     /**
      * Set true while the slider values are updated after colorChange. When
@@ -211,7 +211,7 @@ public class ColorPickerPopup extends Window
         history.setHeight("22px");
 
         // Create the default colors
-        List<Color> defaultColors = new ArrayList<>();
+        List<Color> defaultColors = new ArrayList<Color>();
         defaultColors.add(Color.BLACK);
         defaultColors.add(Color.WHITE);