Add missing copyright headers for recent changes

Change-Id: I166699318948cff0bef1304aff7b635c5d0a5c6a
Signed-off-by: Markus Duft <markus.duft@ssi-schaefer.com>
diff --git a/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/groups/GroupMemberChangeListener.java b/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/groups/GroupMemberChangeListener.java
index 84c8eee..3208b53 100644
--- a/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/groups/GroupMemberChangeListener.java
+++ b/org.eclipse.debug.core/core/org/eclipse/debug/internal/core/groups/GroupMemberChangeListener.java
@@ -1,3 +1,13 @@
+/*******************************************************************************
+ *  Copyright (c) 2016, 2017 SSI Schaefer IT Solutions GmbH and others.
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  which accompanies this distribution, and is available at
+ *  http://www.eclipse.org/legal/epl-v10.html
+ *
+ *  Contributors:
+ *      SSI Schaefer IT Solutions GmbH
+ *******************************************************************************/
 package org.eclipse.debug.internal.core.groups;
 
 import java.util.List;
diff --git a/org.eclipse.debug.tests/src/org/eclipse/debug/tests/launching/LaunchGroupTests.java b/org.eclipse.debug.tests/src/org/eclipse/debug/tests/launching/LaunchGroupTests.java
index 41cfda5..6e1b704 100644
--- a/org.eclipse.debug.tests/src/org/eclipse/debug/tests/launching/LaunchGroupTests.java
+++ b/org.eclipse.debug.tests/src/org/eclipse/debug/tests/launching/LaunchGroupTests.java
@@ -1,3 +1,13 @@
+/*******************************************************************************
+ *  Copyright (c) 2016, 2017 SSI Schaefer IT Solutions GmbH and others.
+ *  All rights reserved. This program and the accompanying materials
+ *  are made available under the terms of the Eclipse Public License v1.0
+ *  which accompanies this distribution, and is available at
+ *  http://www.eclipse.org/legal/epl-v10.html
+ *
+ *  Contributors:
+ *      SSI Schaefer IT Solutions GmbH
+ *******************************************************************************/
 package org.eclipse.debug.tests.launching;
 
 import java.lang.reflect.InvocationHandler;