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/*
* Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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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;
}
}
}