Add missing since tags for 8.1 (#9220)

client/src/main/java/com/vaadin/client/ResourceLoader.java

         }));
     }-*/;
 
+    /**
+     * Executes a Runnable when all HTML imports are ready. If the browser does
+     * not support triggering an event when HTML imports are ready, the Runnable
+     * is executed immediately.
+     *
+     * @param runnable
+     *            the code to execute
+     * @since 8.1
+     */
     protected void runWhenHtmlImportsReady(Runnable runnable) {
         if (GWT.isClient() && supportsHtmlWhenReady()) {
             addHtmlImportsReadyHandler(() -> {

client/src/main/java/com/vaadin/client/connectors/tree/TreeRendererConnector.java

 
 import elemental.json.JsonObject;
 
+/**
+ * Connector for TreeRenderer
+ *
+ * @author Vaadin Ltd
+ * @since 8.1
+ */
 @Connect(TreeRenderer.class)
 public class TreeRendererConnector extends AbstractRendererConnector<String> {
 

client/src/main/java/com/vaadin/client/ui/composite/CompositeConnector.java

 import com.vaadin.shared.ui.Connect.LoadStyle;
 import com.vaadin.ui.Composite;
 
+/**
+ * Connector for the Composite component.
+ *
+ * @author Vaadin Ltd
+ * @since 8.1
+ */
 @Connect(value = Composite.class, loadStyle = LoadStyle.EAGER)
 public class CompositeConnector extends AbstractHasComponentsConnector {
 

server/src/main/java/com/vaadin/event/CollapseEvent.java

      *
      * @param <T>
      *            the collapsed item's type
+     * @since 8.1
      */
     @FunctionalInterface
     public interface CollapseListener<T> extends Serializable {

server/src/main/java/com/vaadin/event/ExpandEvent.java

      *
      * @param <T>
      *            the expanded item's type
+     * @since 8.1
      */
     @FunctionalInterface
     public interface ExpandListener<T> extends Serializable {

server/src/main/java/com/vaadin/server/BootstrapHandler.java

          * Gets the URI resolver to use for bootstrap resources.
          *
          * @return the URI resolver
+         * @since 8.1
          */
         public BootstrapUriResolver getUriResolver() {
             if (uriResolver == null) {
 
     /**
      * The URI resolver used in the bootstrap process.
+     * 
+     * @since 8.1
      */
     protected static class BootstrapUriResolver extends VaadinUriResolver {
         private final BootstrapContext context;
      *            the session of the user to resolve the protocol for
      * @return the URL that frontend:// resolves to, possibly using another
      *         internal protocol
+     * @since 8.1
      */
     public static String resolveFrontendUrl(VaadinSession session) {
         DeploymentConfiguration configuration = session.getConfiguration();

server/src/main/java/com/vaadin/server/BootstrapResponse.java

      *
      * @param uriResolver
      *            the uri resolver which is used
+     * @since 8.1
      */
     public void setUriResolver(VaadinUriResolver uriResolver) {
         assert this.uriResolver == null : "URI resolver should never be changed";
      * Gets the URI resolver used in the bootstrap process.
      *
      * @return the URI resolver
+     * @since 8.1
      */
     public VaadinUriResolver getUriResolver() {
         return uriResolver;

server/src/main/java/com/vaadin/server/DependencyFilter.java

  * Filter for dependencies loaded using {@link StyleSheet @StyleSheet},
  * {@link JavaScript @JavaScript} and {@link HtmlImport @HtmlImport}.
  *
- * @since
+ * @since 8.1
  */
 public interface DependencyFilter extends Serializable {
 
     /**
      * Provides context information for the dependency filter operation.
      *
-     * @since
+     * @since 8.1
      */
     public static class FilterContext implements Serializable {
 

server/src/main/java/com/vaadin/server/VaadinService.java

      * filters, which is undefined. If you need a specific order, you can
      * override this method and alter the order.
      *
-     * @since
+     * @since 8.1
      * @return the list of dependency filters to use for filtering resources,
      *         not null
      * @throws ServiceException
      *
      * @see #createDependencyFilters()
      *
-     * @since
+     * @since 8.1
      * @return the dependency filters to pass resources dependencies through
      *         before loading
      */

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

      * defined filters and returns the filtered collection of dependencies to
      * load.
      *
-     * @since
+     * @since 8.1
      * @param connectorTypes
      *            the collection of connector classes to scan
      * @param manager

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

     /**
      * String renderer that handles icon resources and stores their identifiers
      * into data objects.
+     * 
+     * @since 8.1
      */
     public final class TreeRenderer extends AbstractRenderer<T, String>
             implements DataGenerator<T> {

shared/src/main/java/com/vaadin/shared/ui/tree/TreeRendererState.java

 
 import com.vaadin.shared.ui.grid.renderers.AbstractRendererState;
 
+/**
+ * Shared state for Tree renderer.
+ *
+ * @author Vaadin Ltd
+ * @since 8.1
+ */
 public class TreeRendererState extends AbstractRendererState {
 
 }