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JDK 1.6
  javax.lang.model.element. UnknownAnnotationValueException View Javadoc
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/*
 * @(#)UnknownAnnotationValueException.java	1.4 06/07/31
 *
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package javax.lang.model.element;

/**
 * Indicates that an unknown kind of annotation value was encountered.
 * This can occur if the language evolves and new kinds of annotation
 * values can be stored in an annotation.  May be thrown by an
 * {@linkplain AnnotationValueVisitor annotation value visitor} to
 * indicate that the visitor was created for a prior version of the
 * language.
 *
 * @author Joseph D. Darcy
 * @author Scott Seligman
 * @author Peter von der Ahé
 * @version 1.4 06/07/31
 * @see AnnotationValueVisitor#visitUnknown
 * @since 1.6
 */
public class UnknownAnnotationValueException extends RuntimeException {

    private static final long serialVersionUID = 269L;

    private transient AnnotationValue av;
    private transient Object parameter;

    /**
     * Creates a new {@code UnknownAnnotationValueException}.  The
     * {@code p} parameter may be used to pass in an additional
     * argument with information about the context in which the
     * unknown annotation value was encountered; for example, the
     * visit methods of {@link AnnotationValueVisitor} may pass in
     * their additional parameter.
     *
     * @param av the unknown annotation value, may be {@code null}
     * @param p an additional parameter, may be {@code null}
     */
    public UnknownAnnotationValueException(AnnotationValue av, Object p) {
	super("Unknown annotation value: " + av);
	this.av = av;
	this.parameter = p;
    }

    /**
     * Returns the unknown annotation value.
     * The value may be unavailable if this exception has been
     * serialized and then read back in.
     *
     * @return the unknown element, or {@code null} if unavailable
     */
    public AnnotationValue getUnknownAnnotationValue() {
	return av;
    }

    /**
     * Returns the additional argument.
     *
     * @return the additional argument
     */
    public Object getArgument() {
	return parameter;
    }
}

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