added missing Apache License header
git-svn-id: https://svn.apache.org/repos/asf/oltu/trunk/oauth-2.0@1740512 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/integration-tests/src/test/java/org/apache/oltu/oauth2/httpclient4/HttpClient4Test.java b/integration-tests/src/test/java/org/apache/oltu/oauth2/httpclient4/HttpClient4Test.java
index 1fa3e58..b754fcb 100644
--- a/integration-tests/src/test/java/org/apache/oltu/oauth2/httpclient4/HttpClient4Test.java
+++ b/integration-tests/src/test/java/org/apache/oltu/oauth2/httpclient4/HttpClient4Test.java
@@ -1,3 +1,19 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.oltu.oauth2.httpclient4;
import org.apache.http.Header;
