| /* |
| * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.awt; |
| |
| /** |
| * Thrown when code that is dependent on a keyboard, display, or mouse |
| * is called in an environment that does not support a keyboard, display, |
| * or mouse. |
| * |
| * @since 1.4 |
| * @author Michael Martak |
| */ |
| public class HeadlessException extends UnsupportedOperationException { |
| /* |
| * JDK 1.4 serialVersionUID |
| */ |
| private static final long serialVersionUID = 167183644944358563L; |
| public HeadlessException() {} |
| public HeadlessException(String msg) { |
| super(msg); |
| } |
| public String getMessage() { |
| String superMessage = super.getMessage(); |
| String headlessMessage = GraphicsEnvironment.getHeadlessMessage(); |
| |
| if (superMessage == null) { |
| return headlessMessage; |
| } else if (headlessMessage == null) { |
| return superMessage; |
| } else { |
| return superMessage + headlessMessage; |
| } |
| } |
| } |