Merge branch 'master' into feature/mavenize

Change-Id: Id7db526d07a14ac259cbb50415bbafd2a7c2ab94

21 files changed, 273 insertions, 101 deletions

diff --git a/server/src/main/java/com/vaadin/annotations/PreserveOnRefresh.java b/server/src/main/java/com/vaadin/annotations/PreserveOnRefresh.java
index 7f4ef3ffe5..86723b97fc 100644
--- a/server/src/main/java/com/vaadin/annotations/PreserveOnRefresh.java
+++ b/server/src/main/java/com/vaadin/annotations/PreserveOnRefresh.java
@@ -17,6 +17,7 @@
 package com.vaadin.annotations;
 
 import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
@@ -45,6 +46,7 @@ import com.vaadin.ui.UI;
  */
 @Target(ElementType.TYPE)
 @Retention(RetentionPolicy.RUNTIME)
+@Inherited
 public @interface PreserveOnRefresh {
     // Empty marker annotation
 }
diff --git a/server/src/main/java/com/vaadin/annotations/Push.java b/server/src/main/java/com/vaadin/annotations/Push.java
index b6a28c1560..736bc4488b 100644
--- a/server/src/main/java/com/vaadin/annotations/Push.java
+++ b/server/src/main/java/com/vaadin/annotations/Push.java
@@ -17,6 +17,7 @@
 package com.vaadin.annotations;
 
 import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
@@ -38,6 +39,7 @@ import com.vaadin.ui.UI;
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.TYPE)
+@Inherited
 public @interface Push {
     /**
      * Returns the {@link PushMode} to use for the annotated UI. The default
diff --git a/server/src/main/java/com/vaadin/annotations/Theme.java b/server/src/main/java/com/vaadin/annotations/Theme.java
index 61c47389ad..03fa1179bc 100644
--- a/server/src/main/java/com/vaadin/annotations/Theme.java
+++ b/server/src/main/java/com/vaadin/annotations/Theme.java
@@ -17,6 +17,7 @@
 package com.vaadin.annotations;
 
 import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
@@ -28,6 +29,7 @@ import com.vaadin.ui.UI;
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.TYPE)
+@Inherited
 public @interface Theme {
     /**
      * @return simple name of the theme
diff --git a/server/src/main/java/com/vaadin/annotations/Title.java b/server/src/main/java/com/vaadin/annotations/Title.java
index 38a3d75f17..07eaf17e33 100644
--- a/server/src/main/java/com/vaadin/annotations/Title.java
+++ b/server/src/main/java/com/vaadin/annotations/Title.java
@@ -17,6 +17,7 @@
 package com.vaadin.annotations;
 
 import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
@@ -28,6 +29,7 @@ import com.vaadin.ui.UI;
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.TYPE)
+@Inherited
 public @interface Title {
     /**
      * Gets the HTML title that should be used if the UI is used on it's own.
diff --git a/server/src/main/java/com/vaadin/annotations/VaadinServletConfiguration.java b/server/src/main/java/com/vaadin/annotations/VaadinServletConfiguration.java
index 00af38ecc1..907f2c3a0c 100644
--- a/server/src/main/java/com/vaadin/annotations/VaadinServletConfiguration.java
+++ b/server/src/main/java/com/vaadin/annotations/VaadinServletConfiguration.java
@@ -18,6 +18,7 @@ package com.vaadin.annotations;
 
 import java.lang.annotation.Documented;
 import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
@@ -44,6 +45,7 @@ import com.vaadin.ui.UI;
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.TYPE)
+@Inherited
 public @interface VaadinServletConfiguration {
     /**
      * Defines the init parameter name for methods in
diff --git a/server/src/main/java/com/vaadin/annotations/Widgetset.java b/server/src/main/java/com/vaadin/annotations/Widgetset.java
index c6ef6a7194..2dcf93af13 100644
--- a/server/src/main/java/com/vaadin/annotations/Widgetset.java
+++ b/server/src/main/java/com/vaadin/annotations/Widgetset.java
@@ -17,6 +17,7 @@
 package com.vaadin.annotations;
 
 import java.lang.annotation.ElementType;
+import java.lang.annotation.Inherited;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
@@ -28,6 +29,7 @@ import com.vaadin.ui.UI;
  */
 @Retention(RetentionPolicy.RUNTIME)
 @Target(ElementType.TYPE)
+@Inherited
 public @interface Widgetset {
     /**
      * @return name of the widgetset
diff --git a/server/src/main/java/com/vaadin/server/UIProvider.java b/server/src/main/java/com/vaadin/server/UIProvider.java
index d3d834cad7..4ed86b9c31 100644
--- a/server/src/main/java/com/vaadin/server/UIProvider.java
+++ b/server/src/main/java/com/vaadin/server/UIProvider.java
@@ -18,6 +18,7 @@ package com.vaadin.server;
 
 import java.io.Serializable;
 import java.lang.annotation.Annotation;
+import java.lang.annotation.Inherited;
 
 import com.vaadin.annotations.PreserveOnRefresh;
 import com.vaadin.annotations.Push;
@@ -43,8 +44,15 @@ public abstract class UIProvider implements Serializable {
 
     /**
      * Helper to get an annotation for a class. If the annotation is not present
-     * on the target class, its super classes and implemented interfaces are
-     * also searched for the annotation.
+     * on the target class, its super classes and directly implemented
+     * interfaces are also searched for the annotation. Interfaces implemented
+     * by superclasses are not taken into account.
+     * <p>
+     * Note that searching implemented interfaces for {@code @Inherited}
+     * annotations and searching for superclasses for non-inherited annotations
+     * do not follow the standard semantics and are supported for backwards
+     * compatibility. Future versions of the framework might only support the
+     * standard semantics of {@code @Inherited}.
      * 
      * @param clazz
      *            the class from which the annotation should be found
@@ -55,18 +63,26 @@ public abstract class UIProvider implements Serializable {
      */
     protected static <T extends Annotation> T getAnnotationFor(Class<?> clazz,
             Class<T> annotationType) {
-        // Find from the class hierarchy
-        Class<?> currentType = clazz;
-        while (currentType != Object.class) {
-            T annotation = currentType.getAnnotation(annotationType);
+        // Don't discover hierarchy if annotation is inherited
+        if (annotationType.getAnnotation(Inherited.class) != null) {
+            T annotation = clazz.getAnnotation(annotationType);
             if (annotation != null) {
                 return annotation;
-            } else {
-                currentType = currentType.getSuperclass();
+            }
+        } else {
+            // Find from the class hierarchy
+            Class<?> currentType = clazz;
+            while (currentType != Object.class) {
+                T annotation = currentType.getAnnotation(annotationType);
+                if (annotation != null) {
+                    return annotation;
+                } else {
+                    currentType = currentType.getSuperclass();
+                }
             }
         }
 
-        // Find from an implemented interface
+        // Find from a directly implemented interface
         for (Class<?> iface : clazz.getInterfaces()) {
             T annotation = iface.getAnnotation(annotationType);
             if (annotation != null) {
diff --git a/server/src/main/java/com/vaadin/server/VaadinPortlet.java b/server/src/main/java/com/vaadin/server/VaadinPortlet.java
index 043f95fd7b..5c91b6669c 100644
--- a/server/src/main/java/com/vaadin/server/VaadinPortlet.java
+++ b/server/src/main/java/com/vaadin/server/VaadinPortlet.java
@@ -180,6 +180,14 @@ public class VaadinPortlet extends GenericPortlet implements Constants,
      */
     public static class VaadinLiferayRequest extends
             VaadinHttpAndPortletRequest {
+        /**
+         * The PortalUtil class to use. Set to either
+         * {@link #LIFERAY_6_PORTAL_UTIL} or {@link #LIFERAY_7_PORTAL_UTIL} the
+         * first time it is needed.
+         */
+        private static String portalUtilClass = null;
+        private static final String LIFERAY_6_PORTAL_UTIL = "com.liferay.portal.util.PortalUtil";
+        private static final String LIFERAY_7_PORTAL_UTIL = "com.liferay.portal.kernel.util.PortalUtil";
 
         public VaadinLiferayRequest(PortletRequest request,
                 VaadinPortletService vaadinService) {
@@ -247,19 +255,28 @@ public class VaadinPortlet extends GenericPortlet implements Constants,
 
         @Override
         protected HttpServletRequest getServletRequest(PortletRequest request) {
+            if (portalUtilClass == null) {
+                try {
+                    invokeStaticLiferayMethod(LIFERAY_7_PORTAL_UTIL,
+                            "getHttpServletRequest", request,
+                            "javax.portlet.PortletRequest");
+                    portalUtilClass = LIFERAY_7_PORTAL_UTIL;
+                } catch (Exception e) {
+                    // Liferay 6 or older
+                    portalUtilClass = LIFERAY_6_PORTAL_UTIL;
+                }
+            }
             try {
                 // httpRequest = PortalUtil.getHttpServletRequest(request);
                 HttpServletRequest httpRequest = (HttpServletRequest) invokeStaticLiferayMethod(
-                        "com.liferay.portal.util.PortalUtil",
-                        "getHttpServletRequest", request,
+                        portalUtilClass, "getHttpServletRequest", request,
                         "javax.portlet.PortletRequest");
 
                 // httpRequest =
                 // PortalUtil.getOriginalServletRequest(httpRequest);
                 httpRequest = (HttpServletRequest) invokeStaticLiferayMethod(
-                        "com.liferay.portal.util.PortalUtil",
-                        "getOriginalServletRequest", httpRequest,
-                        "javax.servlet.http.HttpServletRequest");
+                        portalUtilClass, "getOriginalServletRequest",
+                        httpRequest, "javax.servlet.http.HttpServletRequest");
                 return httpRequest;
             } catch (Exception e) {
                 throw new IllegalStateException("Liferay request not detected",
diff --git a/server/src/main/java/com/vaadin/server/communication/ServerRpcHandler.java b/server/src/main/java/com/vaadin/server/communication/ServerRpcHandler.java
index 593b1f544f..3503a2d8b1 100644
--- a/server/src/main/java/com/vaadin/server/communication/ServerRpcHandler.java
+++ b/server/src/main/java/com/vaadin/server/communication/ServerRpcHandler.java
@@ -316,7 +316,7 @@ public class ServerRpcHandler implements Serializable {
      * 6 semantics for components and add-ons that do not use Vaadin 7 RPC
      * directly.
      *
-     * @param uI
+     * @param ui
      *            the UI receiving the invocations data
      * @param lastSyncIdSeenByClient
      *            the most recent sync id the client has seen at the time the
@@ -324,20 +324,21 @@ public class ServerRpcHandler implements Serializable {
      * @param invocationsData
      *            JSON containing all information needed to execute all
      *            requested RPC calls.
+     * @since
      */
-    private void handleInvocations(UI uI, int lastSyncIdSeenByClient,
+    protected void handleInvocations(UI ui, int lastSyncIdSeenByClient,
             JsonArray invocationsData) {
         // TODO PUSH Refactor so that this is not needed
-        LegacyCommunicationManager manager = uI.getSession()
+        LegacyCommunicationManager manager = ui.getSession()
                 .getCommunicationManager();
 
         try {
-            ConnectorTracker connectorTracker = uI.getConnectorTracker();
+            ConnectorTracker connectorTracker = ui.getConnectorTracker();
 
             Set<Connector> enabledConnectors = new HashSet<Connector>();
 
             List<MethodInvocation> invocations = parseInvocations(
-                    uI.getConnectorTracker(), invocationsData,
+                    ui.getConnectorTracker(), invocationsData,
                     lastSyncIdSeenByClient);
             for (MethodInvocation invocation : invocations) {
                 final ClientConnector connector = connectorTracker
@@ -404,35 +405,11 @@ public class ServerRpcHandler implements Serializable {
                 }
 
                 if (invocation instanceof ServerRpcMethodInvocation) {
-                    try {
-                        ServerRpcManager.applyInvocation(connector,
-                                (ServerRpcMethodInvocation) invocation);
-                    } catch (RpcInvocationException e) {
-                        manager.handleConnectorRelatedException(connector, e);
-                    }
+                    handleInvocation(ui, connector,
+                            (ServerRpcMethodInvocation) invocation);
                 } else {
-
-                    // All code below is for legacy variable changes
                     LegacyChangeVariablesInvocation legacyInvocation = (LegacyChangeVariablesInvocation) invocation;
-                    Map<String, Object> changes = legacyInvocation
-                            .getVariableChanges();
-                    try {
-                        if (connector instanceof VariableOwner) {
-                            // The source parameter is never used anywhere
-                            changeVariables(null, (VariableOwner) connector,
-                                    changes);
-                        } else {
-                            throw new IllegalStateException(
-                                    "Received legacy variable change for "
-                                            + connector.getClass().getName()
-                                            + " ("
-                                            + connector.getConnectorId()
-                                            + ") which is not a VariableOwner. The client-side connector sent these legacy varaibles: "
-                                            + changes.keySet());
-                        }
-                    } catch (Exception e) {
-                        manager.handleConnectorRelatedException(connector, e);
-                    }
+                    handleInvocation(ui, connector, legacyInvocation);
                 }
             }
         } catch (JsonException e) {
@@ -444,6 +421,63 @@ public class ServerRpcHandler implements Serializable {
     }
 
     /**
+     * Handles the given RPC method invocation for the given connector
+     * 
+     * @since
+     * @param ui
+     *            the UI containing the connector
+     * @param connector
+     *            the connector the RPC is targeted to
+     * @param invocation
+     *            information about the rpc to invoke
+     */
+    protected void handleInvocation(UI ui, ClientConnector connector,
+            ServerRpcMethodInvocation invocation) {
+        try {
+            ServerRpcManager.applyInvocation(connector, invocation);
+        } catch (RpcInvocationException e) {
+            ui.getSession().getCommunicationManager()
+                    .handleConnectorRelatedException(connector, e);
+        }
+
+    }
+
+    /**
+     * Handles the given Legacy variable change RPC method invocation for the
+     * given connector
+     * 
+     * @since
+     * @param ui
+     *            the UI containing the connector
+     * @param connector
+     *            the connector the RPC is targeted to
+     * @param invocation
+     *            information about the rpc to invoke
+     */
+    protected void handleInvocation(UI ui, ClientConnector connector,
+            LegacyChangeVariablesInvocation legacyInvocation) {
+        Map<String, Object> changes = legacyInvocation.getVariableChanges();
+        try {
+            if (connector instanceof VariableOwner) {
+                // The source parameter is never used anywhere
+                changeVariables(null, (VariableOwner) connector, changes);
+            } else {
+                throw new IllegalStateException(
+                        "Received legacy variable change for "
+                                + connector.getClass().getName()
+                                + " ("
+                                + connector.getConnectorId()
+                                + ") which is not a VariableOwner. The client-side connector sent these legacy varaibles: "
+                                + changes.keySet());
+            }
+        } catch (Exception e) {
+            ui.getSession().getCommunicationManager()
+                    .handleConnectorRelatedException(connector, e);
+        }
+
+    }
+
+    /**
      * Parse JSON from the client into a list of MethodInvocation instances.
      *
      * @param connectorTracker
diff --git a/server/src/main/java/com/vaadin/server/communication/UidlRequestHandler.java b/server/src/main/java/com/vaadin/server/communication/UidlRequestHandler.java
index dda3d81453..db18bb9e1e 100644
--- a/server/src/main/java/com/vaadin/server/communication/UidlRequestHandler.java
+++ b/server/src/main/java/com/vaadin/server/communication/UidlRequestHandler.java
@@ -51,9 +51,20 @@ public class UidlRequestHandler extends SynchronizedRequestHandler implements
 
     public static final String UIDL_PATH = "UIDL/";
 
-    private ServerRpcHandler rpcHandler = new ServerRpcHandler();
+    private ServerRpcHandler rpcHandler;
 
     public UidlRequestHandler() {
+        rpcHandler = createRpcHandler();
+    }
+
+    /**
+     * Creates the ServerRpcHandler to use
+     * 
+     * @since
+     * @return the ServerRpcHandler to use
+     */
+    protected ServerRpcHandler createRpcHandler() {
+        return new ServerRpcHandler();
     }
 
     @Override
diff --git a/server/src/main/java/com/vaadin/server/communication/UidlWriter.java b/server/src/main/java/com/vaadin/server/communication/UidlWriter.java
index b117cb4b4d..8a4e62fb24 100644
--- a/server/src/main/java/com/vaadin/server/communication/UidlWriter.java
+++ b/server/src/main/java/com/vaadin/server/communication/UidlWriter.java
@@ -352,9 +352,12 @@ public class UidlWriter implements Serializable {
      * @throws IOException
      */
     private void writePerformanceData(UI ui, Writer writer) throws IOException {
-        writer.write(String.format(", \"timings\":[%d, %d]", ui.getSession()
-                .getCumulativeRequestDuration(), ui.getSession()
-                .getLastRequestDuration()));
+        if (!ui.getSession().getService().getDeploymentConfiguration()
+                .isProductionMode()) {
+            writer.write(String.format(", \"timings\":[%d, %d]", ui
+                    .getSession().getCumulativeRequestDuration(), ui
+                    .getSession().getLastRequestDuration()));
+        }
     }
 
     private static final Logger getLogger() {
diff --git a/server/src/main/java/com/vaadin/server/widgetsetutils/ClassPathExplorer.java b/server/src/main/java/com/vaadin/server/widgetsetutils/ClassPathExplorer.java
index 063f4f5346..255f34d936 100644
--- a/server/src/main/java/com/vaadin/server/widgetsetutils/ClassPathExplorer.java
+++ b/server/src/main/java/com/vaadin/server/widgetsetutils/ClassPathExplorer.java
@@ -495,7 +495,24 @@ public class ClassPathExplorer {
      * @return URL
      */
     public static URL getDefaultSourceDirectory() {
+        return getWidgetsetSourceDirectory(null);
+    }
 
+    /**
+     * Find and return the source directory which contains the given widgetset
+     * file.
+     * 
+     * If not applicable or widgetsetFileName is null, return the first
+     * directory (not a JAR file etc.) on the classpath.
+     * 
+     * TODO this could be done better...
+     * 
+     * @param widgetsetFileName
+     *            relative path for the widgetset
+     * 
+     * @return URL
+     */
+    public static URL getWidgetsetSourceDirectory(String widgetsetFileName) {
         if (debug) {
             debug("classpathLocations values:");
             ArrayList<String> locations = new ArrayList<String>(
@@ -505,6 +522,7 @@ public class ClassPathExplorer {
             }
         }
 
+        URL firstDirectory = null;
         Iterator<String> it = rawClasspathEntries.iterator();
         while (it.hasNext()) {
             String entry = it.next();
@@ -513,13 +531,18 @@ public class ClassPathExplorer {
             if (directory.exists() && !directory.isHidden()
                     && directory.isDirectory()) {
                 try {
-                    return new URL("file://" + directory.getCanonicalPath());
-                } catch (MalformedURLException e) {
-                    // ignore: continue to the next classpath entry
-                    if (debug) {
-                        e.printStackTrace();
+                    URL directoryUrl = directory.toURI().toURL();
+
+                    // Store the first directory encountered.
+                    if (firstDirectory == null) {
+                        firstDirectory = directoryUrl;
                     }
-                } catch (IOException e) {
+
+                    if (widgetsetFileName == null
+                            || new File(directory, widgetsetFileName).exists()) {
+                        return directoryUrl;
+                    }
+                } catch (MalformedURLException e) {
                     // ignore: continue to the next classpath entry
                     if (debug) {
                         e.printStackTrace();
@@ -527,7 +550,8 @@ public class ClassPathExplorer {
                 }
             }
         }
-        return null;
+
+        return firstDirectory;
     }
 
     /**
diff --git a/server/src/main/java/com/vaadin/server/widgetsetutils/WidgetSetBuilder.java b/server/src/main/java/com/vaadin/server/widgetsetutils/WidgetSetBuilder.java
index f810a63a38..b0d8cdd004 100644
--- a/server/src/main/java/com/vaadin/server/widgetsetutils/WidgetSetBuilder.java
+++ b/server/src/main/java/com/vaadin/server/widgetsetutils/WidgetSetBuilder.java
@@ -61,16 +61,17 @@ public class WidgetSetBuilder {
         Map<String, URL> availableWidgetSets = ClassPathExplorer
                 .getAvailableWidgetSets();
 
+        String widgetsetFileName = widgetset.replace(".", "/") + ".gwt.xml";
         URL sourceUrl = availableWidgetSets.get(widgetset);
         if (sourceUrl == null) {
             // find first/default source directory
-            sourceUrl = ClassPathExplorer.getDefaultSourceDirectory();
+            sourceUrl = ClassPathExplorer
+                    .getWidgetsetSourceDirectory(widgetsetFileName);
         }
 
-        String widgetsetfilename = sourceUrl.getFile() + "/"
-                + widgetset.replace(".", "/") + ".gwt.xml";
+        String wsFullPath = sourceUrl.getFile() + "/" + widgetsetFileName;
 
-        File widgetsetFile = new File(widgetsetfilename);
+        File widgetsetFile = new File(wsFullPath);
         if (!widgetsetFile.exists()) {
             // create empty gwt module file
             File parent = widgetsetFile.getParentFile();
@@ -137,7 +138,7 @@ public class WidgetSetBuilder {
 
             changed = changed || !content.equals(originalContent);
             if (changed) {
-                commitChanges(widgetsetfilename, content);
+                commitChanges(wsFullPath, content);
             }
         } else {
             System.out
diff --git a/server/src/main/java/com/vaadin/ui/AbstractOrderedLayout.java b/server/src/main/java/com/vaadin/ui/AbstractOrderedLayout.java
index e0dbcb004b..f517ab0af5 100644
--- a/server/src/main/java/com/vaadin/ui/AbstractOrderedLayout.java
+++ b/server/src/main/java/com/vaadin/ui/AbstractOrderedLayout.java
@@ -31,7 +31,6 @@ import com.vaadin.server.Sizeable;
 import com.vaadin.shared.Connector;
 import com.vaadin.shared.EventId;
 import com.vaadin.shared.MouseEventDetails;
-import com.vaadin.shared.ui.AlignmentInfo;
 import com.vaadin.shared.ui.MarginInfo;
 import com.vaadin.shared.ui.orderedlayout.AbstractOrderedLayoutServerRpc;
 import com.vaadin.shared.ui.orderedlayout.AbstractOrderedLayoutState;
@@ -486,22 +485,8 @@ public abstract class AbstractOrderedLayout extends AbstractLayout implements
             Component newChild = designContext.readDesign(childComponent);
             addComponent(newChild);
             // handle alignment
-            int bitMask = 0;
-            if (attr.hasKey(":middle")) {
-                bitMask += AlignmentInfo.Bits.ALIGNMENT_VERTICAL_CENTER;
-            } else if (attr.hasKey(":bottom")) {
-                bitMask += AlignmentInfo.Bits.ALIGNMENT_BOTTOM;
-            } else {
-                bitMask += AlignmentInfo.Bits.ALIGNMENT_TOP;
-            }
-            if (attr.hasKey(":center")) {
-                bitMask += AlignmentInfo.Bits.ALIGNMENT_HORIZONTAL_CENTER;
-            } else if (attr.hasKey(":right")) {
-                bitMask += AlignmentInfo.Bits.ALIGNMENT_RIGHT;
-            } else {
-                bitMask += AlignmentInfo.Bits.ALIGNMENT_LEFT;
-            }
-            setComponentAlignment(newChild, new Alignment(bitMask));
+            setComponentAlignment(newChild,
+                    DesignAttributeHandler.readAlignment(attr));
             // handle expand ratio
             if (attr.hasKey(":expand")) {
                 String value = attr.get(":expand");
diff --git a/server/src/main/java/com/vaadin/ui/AbstractSelect.java b/server/src/main/java/com/vaadin/ui/AbstractSelect.java
index 9babf7e876..2714e0cbf5 100644
--- a/server/src/main/java/com/vaadin/ui/AbstractSelect.java
+++ b/server/src/main/java/com/vaadin/ui/AbstractSelect.java
@@ -532,13 +532,16 @@ public abstract class AbstractSelect extends AbstractField<Object> implements
                 } else {
                     final Object id = itemIdMapper
                             .get(clientSideSelectedKeys[0]);
-                    if (!isNullSelectionAllowed() && id == null) {
-                        markAsDirty();
-                    } else if (id != null
-                            && id.equals(getNullSelectionItemId())) {
-                        setValue(null, true);
+
+                    if (id != null) {
+                        if (isNullSelectionAllowed()
+                                && id.equals(getNullSelectionItemId())) {
+                            setValue(null, true);
+                        } else {
+                            setValue(id, true);
+                        }
                     } else {
-                        setValue(id, true);
+                        markAsDirty();
                     }
                 }
             }
diff --git a/server/src/main/java/com/vaadin/ui/DragAndDropWrapper.java b/server/src/main/java/com/vaadin/ui/DragAndDropWrapper.java
index 90b3b56ef6..29179ddca7 100644
--- a/server/src/main/java/com/vaadin/ui/DragAndDropWrapper.java
+++ b/server/src/main/java/com/vaadin/ui/DragAndDropWrapper.java
@@ -40,6 +40,7 @@ import com.vaadin.shared.MouseEventDetails;
 import com.vaadin.shared.ui.dd.HorizontalDropLocation;
 import com.vaadin.shared.ui.dd.VerticalDropLocation;
 import com.vaadin.shared.ui.draganddropwrapper.DragAndDropWrapperConstants;
+import com.vaadin.shared.ui.draganddropwrapper.DragAndDropWrapperServerRpc;
 import com.vaadin.ui.declarative.DesignContext;
 
 @SuppressWarnings("serial")
@@ -111,6 +112,14 @@ public class DragAndDropWrapper extends CustomComponent implements DropTarget,
 
     }
 
+    private final DragAndDropWrapperServerRpc rpc = new DragAndDropWrapperServerRpc() {
+
+        @Override
+        public void poll() {
+            // #19616 RPC to poll the server for changes
+        }
+    };
+
     private Map<String, ProxyReceiver> receivers = new HashMap<String, ProxyReceiver>();
 
     public class WrapperTargetDetails extends TargetDetailsImpl {
@@ -197,6 +206,7 @@ public class DragAndDropWrapper extends CustomComponent implements DropTarget,
     @Deprecated
     public DragAndDropWrapper() {
         super();
+        registerRpc(rpc);
     }
 
     /**
diff --git a/server/src/main/java/com/vaadin/ui/FormLayout.java b/server/src/main/java/com/vaadin/ui/FormLayout.java
index f6f711d658..c817300e53 100644
--- a/server/src/main/java/com/vaadin/ui/FormLayout.java
+++ b/server/src/main/java/com/vaadin/ui/FormLayout.java
@@ -36,7 +36,7 @@ public class FormLayout extends AbstractOrderedLayout {
     public FormLayout() {
         super();
         setSpacing(true);
-        setMargin(new MarginInfo(true, false, true, false));
+        setMargin(new MarginInfo(true, false));
         setWidth(100, UNITS_PERCENTAGE);
     }
 
diff --git a/server/src/main/java/com/vaadin/ui/Grid.java b/server/src/main/java/com/vaadin/ui/Grid.java
index 4074672675..036fe8b756 100644
--- a/server/src/main/java/com/vaadin/ui/Grid.java
+++ b/server/src/main/java/com/vaadin/ui/Grid.java
@@ -4855,8 +4855,13 @@ public class Grid extends AbstractFocusable implements SelectionNotifier,
     }
 
     /**
-     * Sets the grid data source.
-     * 
+     * Sets the grid data source.<p>
+     *
+     * <strong>Note</strong> Grid columns are based on properties and try to detect a correct converter for
+     * the data type. The columns are not reinitialized automatically if the container is changed, and if the same
+     * properties are present after container change, the columns are reused.
+     * Properties with same names, but different data types will lead to unpredictable behaviour.
+     *
      * @param container
      *            The container data source. Cannot be null.
      * @throws IllegalArgumentException
diff --git a/server/src/main/java/com/vaadin/ui/GridLayout.java b/server/src/main/java/com/vaadin/ui/GridLayout.java
index 8517962e91..148fd85fff 100644
--- a/server/src/main/java/com/vaadin/ui/GridLayout.java
+++ b/server/src/main/java/com/vaadin/ui/GridLayout.java
@@ -1330,7 +1330,7 @@ public class GridLayout extends AbstractLayout implements
             }
         }
         setRows(Math.max(rows.size(), 1));
-
+        Map<Component, Alignment> alignments = new HashMap<Component, Alignment>();
         List<Integer> columnExpandRatios = new ArrayList<Integer>();
         for (int row = 0; row < rowElements.size(); ++row) {
             Element rowElement = rowElements.get(row);
@@ -1357,7 +1357,10 @@ public class GridLayout extends AbstractLayout implements
                 Component child = null;
 
                 if (col.children().size() > 0) {
-                    child = designContext.readDesign(col.child(0));
+                    Element childElement = col.child(0);
+                    child = designContext.readDesign(childElement);
+                    alignments.put(child, DesignAttributeHandler
+                            .readAlignment(childElement.attributes()));
                     // TODO: Currently ignoring any extra children.
                     // Needs Error handling?
                 } // Else: Empty placeholder. No child component.
@@ -1441,6 +1444,7 @@ public class GridLayout extends AbstractLayout implements
 
                 // Add component with area
                 addComponent(child, j, i, j + colspan, i + rowspan);
+                setComponentAlignment(child, alignments.get(child));
             }
         }
         // Set cursor position explicitly
@@ -1511,16 +1515,8 @@ public class GridLayout extends AbstractLayout implements
                     ChildComponentData coords = childData.get(child);
 
                     Alignment alignment = getComponentAlignment(child);
-                    if (alignment.isMiddle()) {
-                        childElement.attr(":middle", true);
-                    } else if (alignment.isBottom()) {
-                        childElement.attr(":bottom", true);
-                    }
-                    if (alignment.isCenter()) {
-                        childElement.attr(":center", true);
-                    } else if (alignment.isRight()) {
-                        childElement.attr(":right", true);
-                    }
+                    DesignAttributeHandler.writeAlignment(childElement,
+                            alignment);
 
                     col.appendChild(childElement);
                     if (coords.row1 != coords.row2) {
diff --git a/server/src/main/java/com/vaadin/ui/Window.java b/server/src/main/java/com/vaadin/ui/Window.java
index b5cd384f53..70399ae566 100644
--- a/server/src/main/java/com/vaadin/ui/Window.java
+++ b/server/src/main/java/com/vaadin/ui/Window.java
@@ -1051,7 +1051,9 @@ public class Window extends Panel implements FocusNotifier, BlurNotifier,
 
         @Override
         public void handleAction(Object sender, Object target) {
-            window.close();
+            if (window.isClosable()) {
+                window.close();
+            }
         }
 
         public boolean equals(int keyCode, int... modifiers) {
diff --git a/server/src/main/java/com/vaadin/ui/declarative/DesignAttributeHandler.java b/server/src/main/java/com/vaadin/ui/declarative/DesignAttributeHandler.java
index cee2ebe381..bbfd90b2cc 100644
--- a/server/src/main/java/com/vaadin/ui/declarative/DesignAttributeHandler.java
+++ b/server/src/main/java/com/vaadin/ui/declarative/DesignAttributeHandler.java
@@ -37,7 +37,9 @@ import org.jsoup.nodes.Element;
 import org.jsoup.nodes.Node;
 
 import com.vaadin.data.util.converter.Converter;
+import com.vaadin.shared.ui.AlignmentInfo;
 import com.vaadin.shared.util.SharedUtil;
+import com.vaadin.ui.Alignment;
 
 /**
  * Default attribute handler implementation used when parsing designs to
@@ -452,4 +454,55 @@ public class DesignAttributeHandler implements Serializable {
             return (methods != null && methods.length > 1) ? methods[1] : null;
         }
     }
+
+    /**
+     * Read the alignment from the given child component attributes.
+     * 
+     * @since 7.6.4
+     * @param attr
+     *            the child component attributes
+     * @return the component alignment
+     */
+    public static Alignment readAlignment(Attributes attr) {
+        int bitMask = 0;
+        if (attr.hasKey(":middle")) {
+            bitMask += AlignmentInfo.Bits.ALIGNMENT_VERTICAL_CENTER;
+        } else if (attr.hasKey(":bottom")) {
+            bitMask += AlignmentInfo.Bits.ALIGNMENT_BOTTOM;
+        } else {
+            bitMask += AlignmentInfo.Bits.ALIGNMENT_TOP;
+        }
+        if (attr.hasKey(":center")) {
+            bitMask += AlignmentInfo.Bits.ALIGNMENT_HORIZONTAL_CENTER;
+        } else if (attr.hasKey(":right")) {
+            bitMask += AlignmentInfo.Bits.ALIGNMENT_RIGHT;
+        } else {
+            bitMask += AlignmentInfo.Bits.ALIGNMENT_LEFT;
+        }
+
+        return new Alignment(bitMask);
+    }
+
+    /**
+     * Writes the alignment to the given child element attributes.
+     * 
+     * @since 7.6.4
+     * @param childElement
+     *            the child element
+     * @param alignment
+     *            the component alignment
+     */
+    public static void writeAlignment(Element childElement, Alignment alignment) {
+        if (alignment.isMiddle()) {
+            childElement.attr(":middle", true);
+        } else if (alignment.isBottom()) {
+            childElement.attr(":bottom", true);
+        }
+        if (alignment.isCenter()) {
+            childElement.attr(":center", true);
+        } else if (alignment.isRight()) {
+            childElement.attr(":right", true);
+        }
+    }
+
 }