jakartaee#153 licence header for AbstractJsonArray

Signed-off-by: amihaiemil <[email protected]>

api/src/main/java/jakarta/json/AbstractJsonArray.java

@@ -1,3 +1,18 @@
+/*
+ * Copyright (c) 2011, 2020 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0, which is available at
+ * http://www.eclipse.org/legal/epl-2.0.
+ *
+ * This Source Code may also be made available under the following Secondary
+ * Licenses when the conditions for such availability set forth in the
+ * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
+ * version 2 with the GNU Classpath Exception, which is available at
+ * https://www.gnu.org/software/classpath/license.html.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+ */
 package jakarta.json;
 
 import java.util.*;