minor change

provider/notification-azure/src/test/java/org/opengroup/osdu/notification/provider/azure/util/HandshakeFilterTest.java

+/*
+// Copyright © Microsoft Corporation
+//
+// 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 org.opengroup.osdu.notification.provider.azure.util;
 
 import org.junit.Test;
@@ -5,7 +20,6 @@ import org.junit.runner.RunWith;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
-import org.opengroup.osdu.notification.provider.interfaces.IPubsubHandshakeHandler;
 import org.opengroup.osdu.notification.provider.interfaces.IPubsubRequestBodyExtractor;
 
 import javax.servlet.FilterChain;