Add missing license header (#11655)

Change-Id: Ida9119b64ec570200d0d91cf95740c4166b1cbc4

1 files changed, 16 insertions, 0 deletions

diff --git a/client/src/com/vaadin/client/communication/PushConnection.java b/client/src/com/vaadin/client/communication/PushConnection.java
index 33b1c31411..61656242bd 100644
--- a/client/src/com/vaadin/client/communication/PushConnection.java
+++ b/client/src/com/vaadin/client/communication/PushConnection.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright 2000-2013 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
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
 package com.vaadin.client.communication;
 
 import com.google.gwt.user.client.Command;